From a2249942522d140a063acdc007aced991d4f0588 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Thu, 5 May 2016 14:57:48 -0700 Subject: Work on refactoring (and adding) network conversion tests --- cloudinit/net/network_state.py | 68 ------------------------------------------ 1 file changed, 68 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index e32d2cdf..d08e94fe 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -376,71 +376,3 @@ def mask2cidr(mask): return ipv4mask2cidr(mask) else: return mask - - -if __name__ == '__main__': - import sys - import random - from cloudinit import net - - def load_config(nc): - version = nc.get('version') - config = nc.get('config') - return (version, config) - - def test_parse(network_config): - (version, config) = load_config(network_config) - ns1 = NetworkState(version=version, config=config) - ns1.parse_config() - random.shuffle(config) - ns2 = NetworkState(version=version, config=config) - ns2.parse_config() - print("----NS1-----") - print(ns1.dump_network_state()) - print() - print("----NS2-----") - print(ns2.dump_network_state()) - print("NS1 == NS2 ?=> {}".format( - ns1.network_state == ns2.network_state)) - eni = net.render_interfaces(ns2.network_state) - print(eni) - udev_rules = net.render_persistent_net(ns2.network_state) - print(udev_rules) - - def test_dump_and_load(network_config): - print("Loading network_config into NetworkState") - (version, config) = load_config(network_config) - ns1 = NetworkState(version=version, config=config) - ns1.parse_config() - print("Dumping state to file") - ns1_dump = ns1.dump() - ns1_state = "/tmp/ns1.state" - with open(ns1_state, "w+") as f: - f.write(ns1_dump) - - print("Loading state from file") - ns2 = from_state_file(ns1_state) - print("NS1 == NS2 ?=> {}".format( - ns1.network_state == ns2.network_state)) - - def test_output(network_config): - (version, config) = load_config(network_config) - ns1 = NetworkState(version=version, config=config) - ns1.parse_config() - random.shuffle(config) - ns2 = NetworkState(version=version, config=config) - ns2.parse_config() - print("NS1 == NS2 ?=> {}".format( - ns1.network_state == ns2.network_state)) - eni_1 = net.render_interfaces(ns1.network_state) - eni_2 = net.render_interfaces(ns2.network_state) - print(eni_1) - print(eni_2) - print("eni_1 == eni_2 ?=> {}".format( - eni_1 == eni_2)) - - y = util.read_conf(sys.argv[1]) - network_config = y.get('network') - test_parse(network_config) - test_dump_and_load(network_config) - test_output(network_config) -- cgit v1.2.3 From db9d958a0e76c2c59298041a1355aba97fda000f Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Thu, 5 May 2016 16:38:53 -0700 Subject: Add the bridge net type --- cloudinit/net/__init__.py | 2 +- cloudinit/net/network_state.py | 39 +++++++++++++++++++++------------- cloudinit/sources/helpers/openstack.py | 5 +++++ 3 files changed, 30 insertions(+), 16 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index 31544fd8..cc154c57 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -262,7 +262,7 @@ def parse_deb_config(path): def parse_net_config_data(net_config): - """Parses the config, returns NetworkState dictionary + """Parses the config, returns NetworkState object :param net_config: curtin network config dict """ diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index d08e94fe..27d35256 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -15,6 +15,8 @@ # You should have received a copy of the GNU Affero General Public License # along with Curtin. If not, see . +import six + from cloudinit import log as logging from cloudinit import util from cloudinit.util import yaml_dumps as dump_config @@ -32,11 +34,31 @@ def from_state_file(state_file): state = util.read_conf(state_file) network_state = NetworkState() network_state.load(state) - return network_state -class NetworkState: +class CommandHandlerMeta(type): + """Metaclass that dynamically creates a 'command_handlers' attribute. + + This will scan the to-be-created class for methods that start with + 'handle_' and on finding those will populate a class attribute mapping + so that those methods can be quickly located and called. + """ + def __new__(cls, name, parents, dct): + command_handlers = {} + for attr_name, attr in six.iteritems(dct): + if six.callable(attr) and attr_name.startswith('handle_'): + handles_what = attr_name[len('handle_'):] + if handles_what: + command_handlers[handles_what] = attr + dct['command_handlers'] = command_handlers + return super(CommandHandlerMeta, cls).__new__(cls, name, + parents, dct) + + +@six.add_metaclass(CommandHandlerMeta) +class NetworkState(object): + def __init__(self, version=NETWORK_STATE_VERSION, config=None): self.version = version self.config = config @@ -48,18 +70,6 @@ class NetworkState: 'search': [], } } - self.command_handlers = self.get_command_handlers() - - def get_command_handlers(self): - METHOD_PREFIX = 'handle_' - methods = filter(lambda x: callable(getattr(self, x)) and - x.startswith(METHOD_PREFIX), dir(self)) - handlers = {} - for m in methods: - key = m.replace(METHOD_PREFIX, '') - handlers[key] = getattr(self, m) - - return handlers def dump(self): state = { @@ -83,7 +93,6 @@ class NetworkState: # v1 - direct attr mapping, except version for key in [k for k in required_keys if k not in ['version']]: setattr(self, key, state[key]) - self.command_handlers = self.get_command_handlers() def dump_network_state(self): return dump_config(self.network_state) diff --git a/cloudinit/sources/helpers/openstack.py b/cloudinit/sources/helpers/openstack.py index 475ccab3..845ea971 100644 --- a/cloudinit/sources/helpers/openstack.py +++ b/cloudinit/sources/helpers/openstack.py @@ -576,6 +576,11 @@ def convert_net_json(network_json): 'vlan_id': link['vlan_id'], 'mac_address': link['vlan_mac_address'], }) + elif link['type'] in ['bridge']: + cfg.update({ + 'type': 'bridge', + 'mac_address': link['ethernet_mac_address'], + 'mtu': link['mtu']}) else: raise ValueError( 'Unknown network_data link type: %s' % link['type']) -- cgit v1.2.3 From 2c32c855278c22b77b6ac3bfca23fa2fa6bc6330 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Thu, 5 May 2016 17:03:08 -0700 Subject: Use a decorator vs repeated key checks. --- cloudinit/net/network_state.py | 136 ++++++++++++++++++++--------------------- 1 file changed, 66 insertions(+), 70 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index 27d35256..73be84e1 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -15,6 +15,8 @@ # You should have received a copy of the GNU Affero General Public License # along with Curtin. If not, see . +import copy + import six from cloudinit import log as logging @@ -37,6 +39,37 @@ def from_state_file(state_file): return network_state +class InvalidCommand(Exception): + pass + + +def ensure_command_keys(required_keys): + required_keys = frozenset(required_keys) + + def extract_missing(command): + missing_keys = set() + for key in required_keys: + if key not in command: + missing_keys.add(key) + return missing_keys + + def wrapper(func): + + @six.wraps(func) + def decorator(self, command, *args, **kwargs): + if required_keys: + missing_keys = extract_missing(command) + if missing_keys: + raise InvalidCommand("Command missing %s of required" + " keys %s" % (missing_keys, + required_keys)) + return func(self, command, *args, **kwargs) + + return decorator + + return wrapper + + class CommandHandlerMeta(type): """Metaclass that dynamically creates a 'command_handlers' attribute. @@ -59,17 +92,19 @@ class CommandHandlerMeta(type): @six.add_metaclass(CommandHandlerMeta) class NetworkState(object): + initial_network_state = { + 'interfaces': {}, + 'routes': [], + 'dns': { + 'nameservers': [], + 'search': [], + } + } + def __init__(self, version=NETWORK_STATE_VERSION, config=None): self.version = version self.config = config - self.network_state = { - 'interfaces': {}, - 'routes': [], - 'dns': { - 'nameservers': [], - 'search': [], - } - } + self.network_state = copy.deepcopy(self.initial_network_state) def dump(self): state = { @@ -97,19 +132,26 @@ class NetworkState(object): def dump_network_state(self): return dump_config(self.network_state) - def parse_config(self): + def parse_config(self, skip_broken=True): # rebuild network state for command in self.config: - handler = self.command_handlers.get(command['type']) - handler(command) - - def valid_command(self, command, required_keys): - if not required_keys: - return False - - found_keys = [key for key in command.keys() if key in required_keys] - return len(found_keys) == len(required_keys) - + command_type = command['type'] + try: + handler = self.command_handlers[command_type] + except KeyError: + raise RuntimeError("No handler found for" + " command '%s'" % command_type) + try: + handler(command) + except InvalidCommand: + if not skip_broken: + raise + else: + LOG.warn("Skipping invalid command: %s", command, + exc_info=True) + LOG.debug(self.dump_network_state()) + + @ensure_command_keys(['name']) def handle_physical(self, command): ''' command = { @@ -121,13 +163,6 @@ class NetworkState(object): ] } ''' - required_keys = [ - 'name', - ] - if not self.valid_command(command, required_keys): - LOG.warn('Skipping Invalid command: {}'.format(command)) - LOG.debug(self.dump_network_state()) - return interfaces = self.network_state.get('interfaces') iface = interfaces.get(command['name'], {}) @@ -158,6 +193,7 @@ class NetworkState(object): self.network_state['interfaces'].update({command.get('name'): iface}) self.dump_network_state() + @ensure_command_keys(['name', 'vlan_id', 'vlan_link']) def handle_vlan(self, command): ''' auto eth0.222 @@ -167,16 +203,6 @@ class NetworkState(object): hwaddress ether BC:76:4E:06:96:B3 vlan-raw-device eth0 ''' - required_keys = [ - 'name', - 'vlan_link', - 'vlan_id', - ] - if not self.valid_command(command, required_keys): - print('Skipping Invalid command: {}'.format(command)) - print(self.dump_network_state()) - return - interfaces = self.network_state.get('interfaces') self.handle_physical(command) iface = interfaces.get(command.get('name'), {}) @@ -184,6 +210,7 @@ class NetworkState(object): iface['vlan_id'] = command.get('vlan_id') interfaces.update({iface['name']: iface}) + @ensure_command_keys(['name', 'bond_interfaces', 'params']) def handle_bond(self, command): ''' #/etc/network/interfaces @@ -209,15 +236,6 @@ class NetworkState(object): bond-updelay 200 bond-lacp-rate 4 ''' - required_keys = [ - 'name', - 'bond_interfaces', - 'params', - ] - if not self.valid_command(command, required_keys): - print('Skipping Invalid command: {}'.format(command)) - print(self.dump_network_state()) - return self.handle_physical(command) interfaces = self.network_state.get('interfaces') @@ -245,6 +263,7 @@ class NetworkState(object): bond_if.update({param: val}) self.network_state['interfaces'].update({ifname: bond_if}) + @ensure_command_keys(['name', 'bridge_interfaces', 'params']) def handle_bridge(self, command): ''' auto br0 @@ -272,15 +291,6 @@ class NetworkState(object): "bridge_waitport", ] ''' - required_keys = [ - 'name', - 'bridge_interfaces', - 'params', - ] - if not self.valid_command(command, required_keys): - print('Skipping Invalid command: {}'.format(command)) - print(self.dump_network_state()) - return # find one of the bridge port ifaces to get mac_addr # handle bridge_slaves @@ -304,15 +314,8 @@ class NetworkState(object): interfaces.update({iface['name']: iface}) + @ensure_command_keys(['address']) def handle_nameserver(self, command): - required_keys = [ - 'address', - ] - if not self.valid_command(command, required_keys): - print('Skipping Invalid command: {}'.format(command)) - print(self.dump_network_state()) - return - dns = self.network_state.get('dns') if 'address' in command: addrs = command['address'] @@ -327,15 +330,8 @@ class NetworkState(object): for path in paths: dns['search'].append(path) + @ensure_command_keys(['destination']) def handle_route(self, command): - required_keys = [ - 'destination', - ] - if not self.valid_command(command, required_keys): - print('Skipping Invalid command: {}'.format(command)) - print(self.dump_network_state()) - return - routes = self.network_state.get('routes') network, cidr = command['destination'].split("/") netmask = cidr2mask(int(cidr)) -- cgit v1.2.3 From 247fbc9ce9ac6f47d670a19f073bda0a1f746669 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Mon, 9 May 2016 16:27:59 -0700 Subject: Move the current rendering to a debian distro file This format allows for rendering to work in other distros and clearly separates the API needed to do this (it also moves the klibc parsing into its own module so that the leftover code in net/__init__.py is smaller and only focused on util code). --- cloudinit/net/__init__.py | 553 +------------------------------------- cloudinit/net/distros/__init__.py | 0 cloudinit/net/distros/debian.py | 401 +++++++++++++++++++++++++++ cloudinit/net/klibc.py | 191 +++++++++++++ 4 files changed, 595 insertions(+), 550 deletions(-) create mode 100644 cloudinit/net/distros/__init__.py create mode 100644 cloudinit/net/distros/debian.py create mode 100644 cloudinit/net/klibc.py (limited to 'cloudinit/net') diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index cc154c57..e911ed0c 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -16,41 +16,18 @@ # You should have received a copy of the GNU Affero General Public License # along with Curtin. If not, see . -import base64 import errno -import glob -import gzip -import io import os -import re -import shlex + from cloudinit import log as logging +from cloudinit.net import network_state from cloudinit import util -from .udev import generate_udev_rule -from . import network_state -LOG = logging.getLogger(__name__) +LOG = logging.getLogger(__name__) SYS_CLASS_NET = "/sys/class/net/" LINKS_FNAME_PREFIX = "etc/systemd/network/50-cloud-init-" - -NET_CONFIG_OPTIONS = [ - "address", "netmask", "broadcast", "network", "metric", "gateway", - "pointtopoint", "media", "mtu", "hostname", "leasehours", "leasetime", - "vendor", "client", "bootfile", "server", "hwaddr", "provider", "frame", - "netnum", "endpoint", "local", "ttl", - ] - -NET_CONFIG_COMMANDS = [ - "pre-up", "up", "post-up", "down", "pre-down", "post-down", - ] - -NET_CONFIG_BRIDGE_OPTIONS = [ - "bridge_ageing", "bridge_bridgeprio", "bridge_fd", "bridge_gcinit", - "bridge_hello", "bridge_maxage", "bridge_maxwait", "bridge_stp", - ] - DEFAULT_PRIMARY_INTERFACE = 'eth0' @@ -130,137 +107,6 @@ class ParserError(Exception): """Raised when parser has issue parsing the interfaces file.""" -def parse_deb_config_data(ifaces, contents, src_dir, src_path): - """Parses the file contents, placing result into ifaces. - - '_source_path' is added to every dictionary entry to define which file - the configration information came from. - - :param ifaces: interface dictionary - :param contents: contents of interfaces file - :param src_dir: directory interfaces file was located - :param src_path: file path the `contents` was read - """ - currif = None - for line in contents.splitlines(): - line = line.strip() - if line.startswith('#'): - continue - split = line.split(' ') - option = split[0] - if option == "source-directory": - parsed_src_dir = split[1] - if not parsed_src_dir.startswith("/"): - parsed_src_dir = os.path.join(src_dir, parsed_src_dir) - for expanded_path in glob.glob(parsed_src_dir): - dir_contents = os.listdir(expanded_path) - dir_contents = [ - os.path.join(expanded_path, path) - for path in dir_contents - if (os.path.isfile(os.path.join(expanded_path, path)) and - re.match("^[a-zA-Z0-9_-]+$", path) is not None) - ] - for entry in dir_contents: - with open(entry, "r") as fp: - src_data = fp.read().strip() - abs_entry = os.path.abspath(entry) - parse_deb_config_data( - ifaces, src_data, - os.path.dirname(abs_entry), abs_entry) - elif option == "source": - new_src_path = split[1] - if not new_src_path.startswith("/"): - new_src_path = os.path.join(src_dir, new_src_path) - for expanded_path in glob.glob(new_src_path): - with open(expanded_path, "r") as fp: - src_data = fp.read().strip() - abs_path = os.path.abspath(expanded_path) - parse_deb_config_data( - ifaces, src_data, - os.path.dirname(abs_path), abs_path) - elif option == "auto": - for iface in split[1:]: - if iface not in ifaces: - ifaces[iface] = { - # Include the source path this interface was found in. - "_source_path": src_path - } - ifaces[iface]['auto'] = True - elif option == "iface": - iface, family, method = split[1:4] - if iface not in ifaces: - ifaces[iface] = { - # Include the source path this interface was found in. - "_source_path": src_path - } - elif 'family' in ifaces[iface]: - raise ParserError( - "Interface %s can only be defined once. " - "Re-defined in '%s'." % (iface, src_path)) - ifaces[iface]['family'] = family - ifaces[iface]['method'] = method - currif = iface - elif option == "hwaddress": - ifaces[currif]['hwaddress'] = split[1] - elif option in NET_CONFIG_OPTIONS: - ifaces[currif][option] = split[1] - elif option in NET_CONFIG_COMMANDS: - if option not in ifaces[currif]: - ifaces[currif][option] = [] - ifaces[currif][option].append(' '.join(split[1:])) - elif option.startswith('dns-'): - if 'dns' not in ifaces[currif]: - ifaces[currif]['dns'] = {} - if option == 'dns-search': - ifaces[currif]['dns']['search'] = [] - for domain in split[1:]: - ifaces[currif]['dns']['search'].append(domain) - elif option == 'dns-nameservers': - ifaces[currif]['dns']['nameservers'] = [] - for server in split[1:]: - ifaces[currif]['dns']['nameservers'].append(server) - elif option.startswith('bridge_'): - if 'bridge' not in ifaces[currif]: - ifaces[currif]['bridge'] = {} - if option in NET_CONFIG_BRIDGE_OPTIONS: - bridge_option = option.replace('bridge_', '', 1) - ifaces[currif]['bridge'][bridge_option] = split[1] - elif option == "bridge_ports": - ifaces[currif]['bridge']['ports'] = [] - for iface in split[1:]: - ifaces[currif]['bridge']['ports'].append(iface) - elif option == "bridge_hw" and split[1].lower() == "mac": - ifaces[currif]['bridge']['mac'] = split[2] - elif option == "bridge_pathcost": - if 'pathcost' not in ifaces[currif]['bridge']: - ifaces[currif]['bridge']['pathcost'] = {} - ifaces[currif]['bridge']['pathcost'][split[1]] = split[2] - elif option == "bridge_portprio": - if 'portprio' not in ifaces[currif]['bridge']: - ifaces[currif]['bridge']['portprio'] = {} - ifaces[currif]['bridge']['portprio'][split[1]] = split[2] - elif option.startswith('bond-'): - if 'bond' not in ifaces[currif]: - ifaces[currif]['bond'] = {} - bond_option = option.replace('bond-', '', 1) - ifaces[currif]['bond'][bond_option] = split[1] - for iface in ifaces.keys(): - if 'auto' not in ifaces[iface]: - ifaces[iface]['auto'] = False - - -def parse_deb_config(path): - """Parses a debian network configuration file.""" - ifaces = {} - with open(path, "r") as fp: - contents = fp.read().strip() - abs_path = os.path.abspath(path) - parse_deb_config_data( - ifaces, contents, - os.path.dirname(abs_path), abs_path) - return ifaces - - def parse_net_config_data(net_config): """Parses the config, returns NetworkState object @@ -287,347 +133,6 @@ def parse_net_config(path): return ns -def _load_shell_content(content, add_empty=False, empty_val=None): - """Given shell like syntax (key=value\nkey2=value2\n) in content - return the data in dictionary form. If 'add_empty' is True - then add entries in to the returned dictionary for 'VAR=' - variables. Set their value to empty_val.""" - data = {} - for line in shlex.split(content): - key, value = line.split("=", 1) - if not value: - value = empty_val - if add_empty or value: - data[key] = value - - return data - - -def _klibc_to_config_entry(content, mac_addrs=None): - """Convert a klibc writtent shell content file to a 'config' entry - When ip= is seen on the kernel command line in debian initramfs - and networking is brought up, ipconfig will populate - /run/net-.cfg. - - The files are shell style syntax, and examples are in the tests - provided here. There is no good documentation on this unfortunately. - - DEVICE= is expected/required and PROTO should indicate if - this is 'static' or 'dhcp'. - """ - - if mac_addrs is None: - mac_addrs = {} - - data = _load_shell_content(content) - try: - name = data['DEVICE'] - except KeyError: - raise ValueError("no 'DEVICE' entry in data") - - # ipconfig on precise does not write PROTO - proto = data.get('PROTO') - if not proto: - if data.get('filename'): - proto = 'dhcp' - else: - proto = 'static' - - if proto not in ('static', 'dhcp'): - raise ValueError("Unexpected value for PROTO: %s" % proto) - - iface = { - 'type': 'physical', - 'name': name, - 'subnets': [], - } - - if name in mac_addrs: - iface['mac_address'] = mac_addrs[name] - - # originally believed there might be IPV6* values - for v, pre in (('ipv4', 'IPV4'),): - # if no IPV4ADDR or IPV6ADDR, then go on. - if pre + "ADDR" not in data: - continue - subnet = {'type': proto, 'control': 'manual'} - - # these fields go right on the subnet - for key in ('NETMASK', 'BROADCAST', 'GATEWAY'): - if pre + key in data: - subnet[key.lower()] = data[pre + key] - - dns = [] - # handle IPV4DNS0 or IPV6DNS0 - for nskey in ('DNS0', 'DNS1'): - ns = data.get(pre + nskey) - # verify it has something other than 0.0.0.0 (or ipv6) - if ns and len(ns.strip(":.0")): - dns.append(data[pre + nskey]) - if dns: - subnet['dns_nameservers'] = dns - # add search to both ipv4 and ipv6, as it has no namespace - search = data.get('DOMAINSEARCH') - if search: - if ',' in search: - subnet['dns_search'] = search.split(",") - else: - subnet['dns_search'] = search.split() - - iface['subnets'].append(subnet) - - return name, iface - - -def config_from_klibc_net_cfg(files=None, mac_addrs=None): - if files is None: - files = glob.glob('/run/net*.conf') - - entries = [] - names = {} - for cfg_file in files: - name, entry = _klibc_to_config_entry(util.load_file(cfg_file), - mac_addrs=mac_addrs) - if name in names: - raise ValueError( - "device '%s' defined multiple times: %s and %s" % ( - name, names[name], cfg_file)) - - names[name] = cfg_file - entries.append(entry) - return {'config': entries, 'version': 1} - - -def render_persistent_net(network_state): - ''' Given state, emit udev rules to map - mac to ifname - ''' - content = "" - interfaces = network_state.get('interfaces') - for iface in interfaces.values(): - # for physical interfaces write out a persist net udev rule - if iface['type'] == 'physical' and \ - 'name' in iface and iface.get('mac_address'): - content += generate_udev_rule(iface['name'], - iface['mac_address']) - - return content - - -# TODO: switch valid_map based on mode inet/inet6 -def iface_add_subnet(iface, subnet): - content = "" - valid_map = [ - 'address', - 'netmask', - 'broadcast', - 'metric', - 'gateway', - 'pointopoint', - 'mtu', - 'scope', - 'dns_search', - 'dns_nameservers', - ] - for key, value in subnet.items(): - if value and key in valid_map: - if type(value) == list: - value = " ".join(value) - if '_' in key: - key = key.replace('_', '-') - content += " {} {}\n".format(key, value) - - return content - - -# TODO: switch to valid_map for attrs -def iface_add_attrs(iface): - content = "" - ignore_map = [ - 'control', - 'index', - 'inet', - 'mode', - 'name', - 'subnets', - 'type', - ] - if iface['type'] not in ['bond', 'bridge', 'vlan']: - ignore_map.append('mac_address') - - for key, value in iface.items(): - if value and key not in ignore_map: - if type(value) == list: - value = " ".join(value) - content += " {} {}\n".format(key, value) - - return content - - -def render_route(route, indent=""): - """ When rendering routes for an iface, in some cases applying a route - may result in the route command returning non-zero which produces - some confusing output for users manually using ifup/ifdown[1]. To - that end, we will optionally include an '|| true' postfix to each - route line allowing users to work with ifup/ifdown without using - --force option. - - We may at somepoint not want to emit this additional postfix, and - add a 'strict' flag to this function. When called with strict=True, - then we will not append the postfix. - - 1. http://askubuntu.com/questions/168033/ - how-to-set-static-routes-in-ubuntu-server - """ - content = "" - up = indent + "post-up route add" - down = indent + "pre-down route del" - eol = " || true\n" - mapping = { - 'network': '-net', - 'netmask': 'netmask', - 'gateway': 'gw', - 'metric': 'metric', - } - if route['network'] == '0.0.0.0' and route['netmask'] == '0.0.0.0': - default_gw = " default gw %s" % route['gateway'] - content += up + default_gw + eol - content += down + default_gw + eol - elif route['network'] == '::' and route['netmask'] == 0: - # ipv6! - default_gw = " -A inet6 default gw %s" % route['gateway'] - content += up + default_gw + eol - content += down + default_gw + eol - else: - route_line = "" - for k in ['network', 'netmask', 'gateway', 'metric']: - if k in route: - route_line += " %s %s" % (mapping[k], route[k]) - content += up + route_line + eol - content += down + route_line + eol - - return content - - -def iface_start_entry(iface, index): - fullname = iface['name'] - if index != 0: - fullname += ":%s" % index - - control = iface['control'] - if control == "auto": - cverb = "auto" - elif control in ("hotplug",): - cverb = "allow-" + control - else: - cverb = "# control-" + control - - subst = iface.copy() - subst.update({'fullname': fullname, 'cverb': cverb}) - - return ("{cverb} {fullname}\n" - "iface {fullname} {inet} {mode}\n").format(**subst) - - -def render_interfaces(network_state): - ''' Given state, emit etc/network/interfaces content ''' - - content = "" - interfaces = network_state.get('interfaces') - ''' Apply a sort order to ensure that we write out - the physical interfaces first; this is critical for - bonding - ''' - order = { - 'physical': 0, - 'bond': 1, - 'bridge': 2, - 'vlan': 3, - } - content += "auto lo\niface lo inet loopback\n" - for dnskey, value in network_state.get('dns', {}).items(): - if len(value): - content += " dns-{} {}\n".format(dnskey, " ".join(value)) - - for iface in sorted(interfaces.values(), - key=lambda k: (order[k['type']], k['name'])): - - if content[-2:] != "\n\n": - content += "\n" - subnets = iface.get('subnets', {}) - if subnets: - for index, subnet in zip(range(0, len(subnets)), subnets): - if content[-2:] != "\n\n": - content += "\n" - iface['index'] = index - iface['mode'] = subnet['type'] - iface['control'] = subnet.get('control', 'auto') - if iface['mode'].endswith('6'): - iface['inet'] += '6' - elif iface['mode'] == 'static' and ":" in subnet['address']: - iface['inet'] += '6' - if iface['mode'].startswith('dhcp'): - iface['mode'] = 'dhcp' - - content += iface_start_entry(iface, index) - content += iface_add_subnet(iface, subnet) - content += iface_add_attrs(iface) - else: - # ifenslave docs say to auto the slave devices - if 'bond-master' in iface: - content += "auto {name}\n".format(**iface) - content += "iface {name} {inet} {mode}\n".format(**iface) - content += iface_add_attrs(iface) - - for route in network_state.get('routes'): - content += render_route(route) - - # global replacements until v2 format - content = content.replace('mac_address', 'hwaddress') - return content - - -def render_network_state(target, network_state, eni="etc/network/interfaces", - links_prefix=LINKS_FNAME_PREFIX, - netrules='etc/udev/rules.d/70-persistent-net.rules'): - - fpeni = os.path.sep.join((target, eni,)) - util.ensure_dir(os.path.dirname(fpeni)) - with open(fpeni, 'w+') as f: - f.write(render_interfaces(network_state)) - - if netrules: - netrules = os.path.sep.join((target, netrules,)) - util.ensure_dir(os.path.dirname(netrules)) - with open(netrules, 'w+') as f: - f.write(render_persistent_net(network_state)) - - if links_prefix: - render_systemd_links(target, network_state, links_prefix) - - -def render_systemd_links(target, network_state, - links_prefix=LINKS_FNAME_PREFIX): - fp_prefix = os.path.sep.join((target, links_prefix)) - for f in glob.glob(fp_prefix + "*"): - os.unlink(f) - - interfaces = network_state.get('interfaces') - for iface in interfaces.values(): - if (iface['type'] == 'physical' and 'name' in iface and - iface.get('mac_address')): - fname = fp_prefix + iface['name'] + ".link" - with open(fname, "w") as fp: - fp.write("\n".join([ - "[Match]", - "MACAddress=" + iface['mac_address'], - "", - "[Link]", - "Name=" + iface['name'], - "" - ])) - - def is_disabled_cfg(cfg): if not cfg or not isinstance(cfg, dict): return False @@ -718,56 +223,4 @@ def generate_fallback_config(): return nconf -def _decomp_gzip(blob, strict=True): - # decompress blob. raise exception if not compressed unless strict=False. - with io.BytesIO(blob) as iobuf: - gzfp = None - try: - gzfp = gzip.GzipFile(mode="rb", fileobj=iobuf) - return gzfp.read() - except IOError: - if strict: - raise - return blob - finally: - if gzfp: - gzfp.close() - - -def _b64dgz(b64str, gzipped="try"): - # decode a base64 string. If gzipped is true, transparently uncompresss - # if gzipped is 'try', then try gunzip, returning the original on fail. - try: - blob = base64.b64decode(b64str) - except TypeError: - raise ValueError("Invalid base64 text: %s" % b64str) - - if not gzipped: - return blob - - return _decomp_gzip(blob, strict=gzipped != "try") - - -def read_kernel_cmdline_config(files=None, mac_addrs=None, cmdline=None): - if cmdline is None: - cmdline = util.get_cmdline() - - if 'network-config=' in cmdline: - data64 = None - for tok in cmdline.split(): - if tok.startswith("network-config="): - data64 = tok.split("=", 1)[1] - if data64: - return util.load_yaml(_b64dgz(data64)) - - if 'ip=' not in cmdline: - return None - - if mac_addrs is None: - mac_addrs = {k: sys_netdev_info(k, 'address') - for k in get_devicelist()} - - return config_from_klibc_net_cfg(files=files, mac_addrs=mac_addrs) - - # vi: ts=4 expandtab syntax=python diff --git a/cloudinit/net/distros/__init__.py b/cloudinit/net/distros/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/cloudinit/net/distros/debian.py b/cloudinit/net/distros/debian.py new file mode 100644 index 00000000..3ab0483e --- /dev/null +++ b/cloudinit/net/distros/debian.py @@ -0,0 +1,401 @@ +# vi: ts=4 expandtab +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +import glob +import os +import re + +from cloudinit.net import LINKS_FNAME_PREFIX +from cloudinit.net import ParserError +from cloudinit.net.udev import generate_udev_rule +from cloudinit import util + + +NET_CONFIG_COMMANDS = [ + "pre-up", "up", "post-up", "down", "pre-down", "post-down", +] + +NET_CONFIG_BRIDGE_OPTIONS = [ + "bridge_ageing", "bridge_bridgeprio", "bridge_fd", "bridge_gcinit", + "bridge_hello", "bridge_maxage", "bridge_maxwait", "bridge_stp", +] + +NET_CONFIG_OPTIONS = [ + "address", "netmask", "broadcast", "network", "metric", "gateway", + "pointtopoint", "media", "mtu", "hostname", "leasehours", "leasetime", + "vendor", "client", "bootfile", "server", "hwaddr", "provider", "frame", + "netnum", "endpoint", "local", "ttl", +] + + +# TODO: switch valid_map based on mode inet/inet6 +def _iface_add_subnet(iface, subnet): + content = "" + valid_map = [ + 'address', + 'netmask', + 'broadcast', + 'metric', + 'gateway', + 'pointopoint', + 'mtu', + 'scope', + 'dns_search', + 'dns_nameservers', + ] + for key, value in subnet.items(): + if value and key in valid_map: + if type(value) == list: + value = " ".join(value) + if '_' in key: + key = key.replace('_', '-') + content += " {} {}\n".format(key, value) + + return content + + +# TODO: switch to valid_map for attrs +def _iface_add_attrs(iface): + content = "" + ignore_map = [ + 'control', + 'index', + 'inet', + 'mode', + 'name', + 'subnets', + 'type', + ] + if iface['type'] not in ['bond', 'bridge', 'vlan']: + ignore_map.append('mac_address') + + for key, value in iface.items(): + if value and key not in ignore_map: + if type(value) == list: + value = " ".join(value) + content += " {} {}\n".format(key, value) + + return content + + +def _iface_start_entry(iface, index): + fullname = iface['name'] + if index != 0: + fullname += ":%s" % index + + control = iface['control'] + if control == "auto": + cverb = "auto" + elif control in ("hotplug",): + cverb = "allow-" + control + else: + cverb = "# control-" + control + + subst = iface.copy() + subst.update({'fullname': fullname, 'cverb': cverb}) + + return ("{cverb} {fullname}\n" + "iface {fullname} {inet} {mode}\n").format(**subst) + + +def _parse_deb_config_data(ifaces, contents, src_dir, src_path): + """Parses the file contents, placing result into ifaces. + + '_source_path' is added to every dictionary entry to define which file + the configration information came from. + + :param ifaces: interface dictionary + :param contents: contents of interfaces file + :param src_dir: directory interfaces file was located + :param src_path: file path the `contents` was read + """ + currif = None + for line in contents.splitlines(): + line = line.strip() + if line.startswith('#'): + continue + split = line.split(' ') + option = split[0] + if option == "source-directory": + parsed_src_dir = split[1] + if not parsed_src_dir.startswith("/"): + parsed_src_dir = os.path.join(src_dir, parsed_src_dir) + for expanded_path in glob.glob(parsed_src_dir): + dir_contents = os.listdir(expanded_path) + dir_contents = [ + os.path.join(expanded_path, path) + for path in dir_contents + if (os.path.isfile(os.path.join(expanded_path, path)) and + re.match("^[a-zA-Z0-9_-]+$", path) is not None) + ] + for entry in dir_contents: + with open(entry, "r") as fp: + src_data = fp.read().strip() + abs_entry = os.path.abspath(entry) + _parse_deb_config_data( + ifaces, src_data, + os.path.dirname(abs_entry), abs_entry) + elif option == "source": + new_src_path = split[1] + if not new_src_path.startswith("/"): + new_src_path = os.path.join(src_dir, new_src_path) + for expanded_path in glob.glob(new_src_path): + with open(expanded_path, "r") as fp: + src_data = fp.read().strip() + abs_path = os.path.abspath(expanded_path) + _parse_deb_config_data( + ifaces, src_data, + os.path.dirname(abs_path), abs_path) + elif option == "auto": + for iface in split[1:]: + if iface not in ifaces: + ifaces[iface] = { + # Include the source path this interface was found in. + "_source_path": src_path + } + ifaces[iface]['auto'] = True + elif option == "iface": + iface, family, method = split[1:4] + if iface not in ifaces: + ifaces[iface] = { + # Include the source path this interface was found in. + "_source_path": src_path + } + elif 'family' in ifaces[iface]: + raise ParserError( + "Interface %s can only be defined once. " + "Re-defined in '%s'." % (iface, src_path)) + ifaces[iface]['family'] = family + ifaces[iface]['method'] = method + currif = iface + elif option == "hwaddress": + ifaces[currif]['hwaddress'] = split[1] + elif option in NET_CONFIG_OPTIONS: + ifaces[currif][option] = split[1] + elif option in NET_CONFIG_COMMANDS: + if option not in ifaces[currif]: + ifaces[currif][option] = [] + ifaces[currif][option].append(' '.join(split[1:])) + elif option.startswith('dns-'): + if 'dns' not in ifaces[currif]: + ifaces[currif]['dns'] = {} + if option == 'dns-search': + ifaces[currif]['dns']['search'] = [] + for domain in split[1:]: + ifaces[currif]['dns']['search'].append(domain) + elif option == 'dns-nameservers': + ifaces[currif]['dns']['nameservers'] = [] + for server in split[1:]: + ifaces[currif]['dns']['nameservers'].append(server) + elif option.startswith('bridge_'): + if 'bridge' not in ifaces[currif]: + ifaces[currif]['bridge'] = {} + if option in NET_CONFIG_BRIDGE_OPTIONS: + bridge_option = option.replace('bridge_', '', 1) + ifaces[currif]['bridge'][bridge_option] = split[1] + elif option == "bridge_ports": + ifaces[currif]['bridge']['ports'] = [] + for iface in split[1:]: + ifaces[currif]['bridge']['ports'].append(iface) + elif option == "bridge_hw" and split[1].lower() == "mac": + ifaces[currif]['bridge']['mac'] = split[2] + elif option == "bridge_pathcost": + if 'pathcost' not in ifaces[currif]['bridge']: + ifaces[currif]['bridge']['pathcost'] = {} + ifaces[currif]['bridge']['pathcost'][split[1]] = split[2] + elif option == "bridge_portprio": + if 'portprio' not in ifaces[currif]['bridge']: + ifaces[currif]['bridge']['portprio'] = {} + ifaces[currif]['bridge']['portprio'][split[1]] = split[2] + elif option.startswith('bond-'): + if 'bond' not in ifaces[currif]: + ifaces[currif]['bond'] = {} + bond_option = option.replace('bond-', '', 1) + ifaces[currif]['bond'][bond_option] = split[1] + for iface in ifaces.keys(): + if 'auto' not in ifaces[iface]: + ifaces[iface]['auto'] = False + + +def _parse_deb_config(path): + """Parses a debian network configuration file.""" + ifaces = {} + with open(path, "r") as fp: + contents = fp.read().strip() + abs_path = os.path.abspath(path) + _parse_deb_config_data( + ifaces, contents, + os.path.dirname(abs_path), abs_path) + return ifaces + + +class Renderer(object): + """Renders network information in a debian format.""" + + def render_persistent_net(self, network_state): + ''' Given state, emit udev rules to map + mac to ifname + ''' + content = "" + interfaces = network_state.get('interfaces') + for iface in interfaces.values(): + # for physical interfaces write out a persist net udev rule + if iface['type'] == 'physical' and \ + 'name' in iface and iface.get('mac_address'): + content += generate_udev_rule(iface['name'], + iface['mac_address']) + + return content + + def render_routes(self, route, indent=""): + """ When rendering routes for an iface, in some cases applying a route + may result in the route command returning non-zero which produces + some confusing output for users manually using ifup/ifdown[1]. To + that end, we will optionally include an '|| true' postfix to each + route line allowing users to work with ifup/ifdown without using + --force option. + + We may at somepoint not want to emit this additional postfix, and + add a 'strict' flag to this function. When called with strict=True, + then we will not append the postfix. + + 1. http://askubuntu.com/questions/168033/ + how-to-set-static-routes-in-ubuntu-server + """ + content = "" + up = indent + "post-up route add" + down = indent + "pre-down route del" + eol = " || true\n" + mapping = { + 'network': '-net', + 'netmask': 'netmask', + 'gateway': 'gw', + 'metric': 'metric', + } + if route['network'] == '0.0.0.0' and route['netmask'] == '0.0.0.0': + default_gw = " default gw %s" % route['gateway'] + content += up + default_gw + eol + content += down + default_gw + eol + elif route['network'] == '::' and route['netmask'] == 0: + # ipv6! + default_gw = " -A inet6 default gw %s" % route['gateway'] + content += up + default_gw + eol + content += down + default_gw + eol + else: + route_line = "" + for k in ['network', 'netmask', 'gateway', 'metric']: + if k in route: + route_line += " %s %s" % (mapping[k], route[k]) + content += up + route_line + eol + content += down + route_line + eol + + return content + + def render_interfaces(self, network_state): + ''' Given state, emit etc/network/interfaces content ''' + + content = "" + interfaces = network_state.get('interfaces') + ''' Apply a sort order to ensure that we write out + the physical interfaces first; this is critical for + bonding + ''' + order = { + 'physical': 0, + 'bond': 1, + 'bridge': 2, + 'vlan': 3, + } + content += "auto lo\niface lo inet loopback\n" + for dnskey, value in network_state.get('dns', {}).items(): + if len(value): + content += " dns-{} {}\n".format(dnskey, " ".join(value)) + + for iface in sorted(interfaces.values(), + key=lambda k: (order[k['type']], k['name'])): + + if content[-2:] != "\n\n": + content += "\n" + subnets = iface.get('subnets', {}) + if subnets: + for index, subnet in zip(range(0, len(subnets)), subnets): + if content[-2:] != "\n\n": + content += "\n" + iface['index'] = index + iface['mode'] = subnet['type'] + iface['control'] = subnet.get('control', 'auto') + if iface['mode'].endswith('6'): + iface['inet'] += '6' + elif iface['mode'] == 'static' \ + and ":" in subnet['address']: + iface['inet'] += '6' + if iface['mode'].startswith('dhcp'): + iface['mode'] = 'dhcp' + + content += _iface_start_entry(iface, index) + content += _iface_add_subnet(iface, subnet) + content += _iface_add_attrs(iface) + else: + # ifenslave docs say to auto the slave devices + if 'bond-master' in iface: + content += "auto {name}\n".format(**iface) + content += "iface {name} {inet} {mode}\n".format(**iface) + content += _iface_add_attrs(iface) + + for route in network_state.get('routes'): + content += self.render_route(route) + + # global replacements until v2 format + content = content.replace('mac_address', 'hwaddress') + return content + + def render_network_state(self, + target, network_state, eni="etc/network/interfaces", + links_prefix=LINKS_FNAME_PREFIX, + netrules='etc/udev/rules.d/70-persistent-net.rules'): + + fpeni = os.path.sep.join((target, eni,)) + util.ensure_dir(os.path.dirname(fpeni)) + with open(fpeni, 'w+') as f: + f.write(self.render_interfaces(network_state)) + + if netrules: + netrules = os.path.sep.join((target, netrules,)) + util.ensure_dir(os.path.dirname(netrules)) + with open(netrules, 'w+') as f: + f.write(self.render_persistent_net(network_state)) + + if links_prefix: + self.render_systemd_links(target, network_state, links_prefix) + + def render_systemd_links(self, target, network_state, + links_prefix=LINKS_FNAME_PREFIX): + fp_prefix = os.path.sep.join((target, links_prefix)) + for f in glob.glob(fp_prefix + "*"): + os.unlink(f) + + interfaces = network_state.get('interfaces') + for iface in interfaces.values(): + if (iface['type'] == 'physical' and 'name' in iface and + iface.get('mac_address')): + fname = fp_prefix + iface['name'] + ".link" + with open(fname, "w") as fp: + fp.write("\n".join([ + "[Match]", + "MACAddress=" + iface['mac_address'], + "", + "[Link]", + "Name=" + iface['name'], + "" + ])) diff --git a/cloudinit/net/klibc.py b/cloudinit/net/klibc.py new file mode 100644 index 00000000..958c264b --- /dev/null +++ b/cloudinit/net/klibc.py @@ -0,0 +1,191 @@ +# Copyright (C) 2013-2014 Canonical Ltd. +# +# Author: Scott Moser +# Author: Blake Rouse +# +# Curtin is free software: you can redistribute it and/or modify it under +# the terms of the GNU Affero General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# Curtin is distributed in the hope that it will be useful, but WITHOUT ANY +# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +# more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with Curtin. If not, see . + +import base64 +import glob +import gzip +import io +import shlex + +from cloudinit.net import get_devicelist +from cloudinit.net import sys_netdev_info + +from cloudinit import util + + +def _load_shell_content(content, add_empty=False, empty_val=None): + """Given shell like syntax (key=value\nkey2=value2\n) in content + return the data in dictionary form. If 'add_empty' is True + then add entries in to the returned dictionary for 'VAR=' + variables. Set their value to empty_val.""" + data = {} + for line in shlex.split(content): + key, value = line.split("=", 1) + if not value: + value = empty_val + if add_empty or value: + data[key] = value + + return data + + +def _klibc_to_config_entry(content, mac_addrs=None): + """Convert a klibc writtent shell content file to a 'config' entry + When ip= is seen on the kernel command line in debian initramfs + and networking is brought up, ipconfig will populate + /run/net-.cfg. + + The files are shell style syntax, and examples are in the tests + provided here. There is no good documentation on this unfortunately. + + DEVICE= is expected/required and PROTO should indicate if + this is 'static' or 'dhcp'. + """ + + if mac_addrs is None: + mac_addrs = {} + + data = _load_shell_content(content) + try: + name = data['DEVICE'] + except KeyError: + raise ValueError("no 'DEVICE' entry in data") + + # ipconfig on precise does not write PROTO + proto = data.get('PROTO') + if not proto: + if data.get('filename'): + proto = 'dhcp' + else: + proto = 'static' + + if proto not in ('static', 'dhcp'): + raise ValueError("Unexpected value for PROTO: %s" % proto) + + iface = { + 'type': 'physical', + 'name': name, + 'subnets': [], + } + + if name in mac_addrs: + iface['mac_address'] = mac_addrs[name] + + # originally believed there might be IPV6* values + for v, pre in (('ipv4', 'IPV4'),): + # if no IPV4ADDR or IPV6ADDR, then go on. + if pre + "ADDR" not in data: + continue + subnet = {'type': proto, 'control': 'manual'} + + # these fields go right on the subnet + for key in ('NETMASK', 'BROADCAST', 'GATEWAY'): + if pre + key in data: + subnet[key.lower()] = data[pre + key] + + dns = [] + # handle IPV4DNS0 or IPV6DNS0 + for nskey in ('DNS0', 'DNS1'): + ns = data.get(pre + nskey) + # verify it has something other than 0.0.0.0 (or ipv6) + if ns and len(ns.strip(":.0")): + dns.append(data[pre + nskey]) + if dns: + subnet['dns_nameservers'] = dns + # add search to both ipv4 and ipv6, as it has no namespace + search = data.get('DOMAINSEARCH') + if search: + if ',' in search: + subnet['dns_search'] = search.split(",") + else: + subnet['dns_search'] = search.split() + + iface['subnets'].append(subnet) + + return name, iface + + +def config_from_klibc_net_cfg(files=None, mac_addrs=None): + if files is None: + files = glob.glob('/run/net*.conf') + + entries = [] + names = {} + for cfg_file in files: + name, entry = _klibc_to_config_entry(util.load_file(cfg_file), + mac_addrs=mac_addrs) + if name in names: + raise ValueError( + "device '%s' defined multiple times: %s and %s" % ( + name, names[name], cfg_file)) + + names[name] = cfg_file + entries.append(entry) + return {'config': entries, 'version': 1} + + +def _decomp_gzip(blob, strict=True): + # decompress blob. raise exception if not compressed unless strict=False. + with io.BytesIO(blob) as iobuf: + gzfp = None + try: + gzfp = gzip.GzipFile(mode="rb", fileobj=iobuf) + return gzfp.read() + except IOError: + if strict: + raise + return blob + finally: + if gzfp: + gzfp.close() + + +def _b64dgz(b64str, gzipped="try"): + # decode a base64 string. If gzipped is true, transparently uncompresss + # if gzipped is 'try', then try gunzip, returning the original on fail. + try: + blob = base64.b64decode(b64str) + except TypeError: + raise ValueError("Invalid base64 text: %s" % b64str) + + if not gzipped: + return blob + + return _decomp_gzip(blob, strict=gzipped != "try") + + +def read_kernel_cmdline_config(files=None, mac_addrs=None, cmdline=None): + if cmdline is None: + cmdline = util.get_cmdline() + + if 'network-config=' in cmdline: + data64 = None + for tok in cmdline.split(): + if tok.startswith("network-config="): + data64 = tok.split("=", 1)[1] + if data64: + return util.load_yaml(_b64dgz(data64)) + + if 'ip=' not in cmdline: + return None + + if mac_addrs is None: + mac_addrs = {k: sys_netdev_info(k, 'address') + for k in get_devicelist()} + + return config_from_klibc_net_cfg(files=files, mac_addrs=mac_addrs) -- cgit v1.2.3 From a800da2371b85b2ece1a30de00f988035819c958 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Mon, 9 May 2016 16:36:04 -0700 Subject: Use the new renderer in the debian and stages files --- cloudinit/distros/debian.py | 10 ++++++---- cloudinit/net/distros/debian.py | 2 +- cloudinit/stages.py | 4 ++-- 3 files changed, 9 insertions(+), 7 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/distros/debian.py b/cloudinit/distros/debian.py index 75ab340f..e8fc1df4 100644 --- a/cloudinit/distros/debian.py +++ b/cloudinit/distros/debian.py @@ -27,6 +27,7 @@ from cloudinit import helpers from cloudinit import log as logging from cloudinit import util from cloudinit import net +from cloudinit.net.distros import debian from cloudinit.distros.parsers.hostname import HostnameConf @@ -56,6 +57,7 @@ class Distro(distros.Distro): # should only happen say once per instance...) self._runner = helpers.Runners(paths) self.osfamily = 'debian' + self.renderer = debian.Renderer() def apply_locale(self, locale, out_fn=None): if not out_fn: @@ -80,10 +82,10 @@ class Distro(distros.Distro): def _write_network_config(self, netconfig): ns = net.parse_net_config_data(netconfig) - net.render_network_state(target="/", network_state=ns, - eni=self.network_conf_fn, - links_prefix=self.links_prefix, - netrules=None) + self.renderer.render_network_state( + target="/", network_state=ns, + eni=self.network_conf_fn, links_prefix=self.links_prefix, + netrules=None) _maybe_remove_legacy_eth0() return [] diff --git a/cloudinit/net/distros/debian.py b/cloudinit/net/distros/debian.py index 3ab0483e..4bf34fd7 100644 --- a/cloudinit/net/distros/debian.py +++ b/cloudinit/net/distros/debian.py @@ -258,7 +258,7 @@ class Renderer(object): return content - def render_routes(self, route, indent=""): + def render_route(self, route, indent=""): """ When rendering routes for an iface, in some cases applying a route may result in the route command returning non-zero which produces some confusing output for users manually using ifup/ifdown[1]. To diff --git a/cloudinit/stages.py b/cloudinit/stages.py index ffb15165..e6bd34fe 100644 --- a/cloudinit/stages.py +++ b/cloudinit/stages.py @@ -43,7 +43,7 @@ from cloudinit import distros from cloudinit import helpers from cloudinit import importer from cloudinit import log as logging -from cloudinit import net +from cloudinit.net import klibc from cloudinit import sources from cloudinit import type_utils from cloudinit import util @@ -579,7 +579,7 @@ class Init(object): if os.path.exists(disable_file): return (None, disable_file) - cmdline_cfg = ('cmdline', net.read_kernel_cmdline_config()) + cmdline_cfg = ('cmdline', klibc.read_kernel_cmdline_config()) dscfg = ('ds', None) if self.datasource and hasattr(self.datasource, 'network_config'): dscfg = ('ds', self.datasource.network_config) -- cgit v1.2.3 From 483545957dca362452b94fc49064e298fc07dd71 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Tue, 10 May 2016 13:02:29 -0700 Subject: Rename to net/renderers and klibc -> cmdline.py --- cloudinit/net/cmdline.py | 191 +++++++++++++++++ cloudinit/net/distros/__init__.py | 0 cloudinit/net/distros/debian.py | 401 ------------------------------------ cloudinit/net/klibc.py | 191 ----------------- cloudinit/net/renderers/__init__.py | 0 cloudinit/net/renderers/eni.py | 399 +++++++++++++++++++++++++++++++++++ cloudinit/stages.py | 4 +- 7 files changed, 592 insertions(+), 594 deletions(-) create mode 100644 cloudinit/net/cmdline.py delete mode 100644 cloudinit/net/distros/__init__.py delete mode 100644 cloudinit/net/distros/debian.py delete mode 100644 cloudinit/net/klibc.py create mode 100644 cloudinit/net/renderers/__init__.py create mode 100644 cloudinit/net/renderers/eni.py (limited to 'cloudinit/net') diff --git a/cloudinit/net/cmdline.py b/cloudinit/net/cmdline.py new file mode 100644 index 00000000..958c264b --- /dev/null +++ b/cloudinit/net/cmdline.py @@ -0,0 +1,191 @@ +# Copyright (C) 2013-2014 Canonical Ltd. +# +# Author: Scott Moser +# Author: Blake Rouse +# +# Curtin is free software: you can redistribute it and/or modify it under +# the terms of the GNU Affero General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# Curtin is distributed in the hope that it will be useful, but WITHOUT ANY +# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +# more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with Curtin. If not, see . + +import base64 +import glob +import gzip +import io +import shlex + +from cloudinit.net import get_devicelist +from cloudinit.net import sys_netdev_info + +from cloudinit import util + + +def _load_shell_content(content, add_empty=False, empty_val=None): + """Given shell like syntax (key=value\nkey2=value2\n) in content + return the data in dictionary form. If 'add_empty' is True + then add entries in to the returned dictionary for 'VAR=' + variables. Set their value to empty_val.""" + data = {} + for line in shlex.split(content): + key, value = line.split("=", 1) + if not value: + value = empty_val + if add_empty or value: + data[key] = value + + return data + + +def _klibc_to_config_entry(content, mac_addrs=None): + """Convert a klibc writtent shell content file to a 'config' entry + When ip= is seen on the kernel command line in debian initramfs + and networking is brought up, ipconfig will populate + /run/net-.cfg. + + The files are shell style syntax, and examples are in the tests + provided here. There is no good documentation on this unfortunately. + + DEVICE= is expected/required and PROTO should indicate if + this is 'static' or 'dhcp'. + """ + + if mac_addrs is None: + mac_addrs = {} + + data = _load_shell_content(content) + try: + name = data['DEVICE'] + except KeyError: + raise ValueError("no 'DEVICE' entry in data") + + # ipconfig on precise does not write PROTO + proto = data.get('PROTO') + if not proto: + if data.get('filename'): + proto = 'dhcp' + else: + proto = 'static' + + if proto not in ('static', 'dhcp'): + raise ValueError("Unexpected value for PROTO: %s" % proto) + + iface = { + 'type': 'physical', + 'name': name, + 'subnets': [], + } + + if name in mac_addrs: + iface['mac_address'] = mac_addrs[name] + + # originally believed there might be IPV6* values + for v, pre in (('ipv4', 'IPV4'),): + # if no IPV4ADDR or IPV6ADDR, then go on. + if pre + "ADDR" not in data: + continue + subnet = {'type': proto, 'control': 'manual'} + + # these fields go right on the subnet + for key in ('NETMASK', 'BROADCAST', 'GATEWAY'): + if pre + key in data: + subnet[key.lower()] = data[pre + key] + + dns = [] + # handle IPV4DNS0 or IPV6DNS0 + for nskey in ('DNS0', 'DNS1'): + ns = data.get(pre + nskey) + # verify it has something other than 0.0.0.0 (or ipv6) + if ns and len(ns.strip(":.0")): + dns.append(data[pre + nskey]) + if dns: + subnet['dns_nameservers'] = dns + # add search to both ipv4 and ipv6, as it has no namespace + search = data.get('DOMAINSEARCH') + if search: + if ',' in search: + subnet['dns_search'] = search.split(",") + else: + subnet['dns_search'] = search.split() + + iface['subnets'].append(subnet) + + return name, iface + + +def config_from_klibc_net_cfg(files=None, mac_addrs=None): + if files is None: + files = glob.glob('/run/net*.conf') + + entries = [] + names = {} + for cfg_file in files: + name, entry = _klibc_to_config_entry(util.load_file(cfg_file), + mac_addrs=mac_addrs) + if name in names: + raise ValueError( + "device '%s' defined multiple times: %s and %s" % ( + name, names[name], cfg_file)) + + names[name] = cfg_file + entries.append(entry) + return {'config': entries, 'version': 1} + + +def _decomp_gzip(blob, strict=True): + # decompress blob. raise exception if not compressed unless strict=False. + with io.BytesIO(blob) as iobuf: + gzfp = None + try: + gzfp = gzip.GzipFile(mode="rb", fileobj=iobuf) + return gzfp.read() + except IOError: + if strict: + raise + return blob + finally: + if gzfp: + gzfp.close() + + +def _b64dgz(b64str, gzipped="try"): + # decode a base64 string. If gzipped is true, transparently uncompresss + # if gzipped is 'try', then try gunzip, returning the original on fail. + try: + blob = base64.b64decode(b64str) + except TypeError: + raise ValueError("Invalid base64 text: %s" % b64str) + + if not gzipped: + return blob + + return _decomp_gzip(blob, strict=gzipped != "try") + + +def read_kernel_cmdline_config(files=None, mac_addrs=None, cmdline=None): + if cmdline is None: + cmdline = util.get_cmdline() + + if 'network-config=' in cmdline: + data64 = None + for tok in cmdline.split(): + if tok.startswith("network-config="): + data64 = tok.split("=", 1)[1] + if data64: + return util.load_yaml(_b64dgz(data64)) + + if 'ip=' not in cmdline: + return None + + if mac_addrs is None: + mac_addrs = {k: sys_netdev_info(k, 'address') + for k in get_devicelist()} + + return config_from_klibc_net_cfg(files=files, mac_addrs=mac_addrs) diff --git a/cloudinit/net/distros/__init__.py b/cloudinit/net/distros/__init__.py deleted file mode 100644 index e69de29b..00000000 diff --git a/cloudinit/net/distros/debian.py b/cloudinit/net/distros/debian.py deleted file mode 100644 index 4bf34fd7..00000000 --- a/cloudinit/net/distros/debian.py +++ /dev/null @@ -1,401 +0,0 @@ -# vi: ts=4 expandtab -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License version 3, as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -import glob -import os -import re - -from cloudinit.net import LINKS_FNAME_PREFIX -from cloudinit.net import ParserError -from cloudinit.net.udev import generate_udev_rule -from cloudinit import util - - -NET_CONFIG_COMMANDS = [ - "pre-up", "up", "post-up", "down", "pre-down", "post-down", -] - -NET_CONFIG_BRIDGE_OPTIONS = [ - "bridge_ageing", "bridge_bridgeprio", "bridge_fd", "bridge_gcinit", - "bridge_hello", "bridge_maxage", "bridge_maxwait", "bridge_stp", -] - -NET_CONFIG_OPTIONS = [ - "address", "netmask", "broadcast", "network", "metric", "gateway", - "pointtopoint", "media", "mtu", "hostname", "leasehours", "leasetime", - "vendor", "client", "bootfile", "server", "hwaddr", "provider", "frame", - "netnum", "endpoint", "local", "ttl", -] - - -# TODO: switch valid_map based on mode inet/inet6 -def _iface_add_subnet(iface, subnet): - content = "" - valid_map = [ - 'address', - 'netmask', - 'broadcast', - 'metric', - 'gateway', - 'pointopoint', - 'mtu', - 'scope', - 'dns_search', - 'dns_nameservers', - ] - for key, value in subnet.items(): - if value and key in valid_map: - if type(value) == list: - value = " ".join(value) - if '_' in key: - key = key.replace('_', '-') - content += " {} {}\n".format(key, value) - - return content - - -# TODO: switch to valid_map for attrs -def _iface_add_attrs(iface): - content = "" - ignore_map = [ - 'control', - 'index', - 'inet', - 'mode', - 'name', - 'subnets', - 'type', - ] - if iface['type'] not in ['bond', 'bridge', 'vlan']: - ignore_map.append('mac_address') - - for key, value in iface.items(): - if value and key not in ignore_map: - if type(value) == list: - value = " ".join(value) - content += " {} {}\n".format(key, value) - - return content - - -def _iface_start_entry(iface, index): - fullname = iface['name'] - if index != 0: - fullname += ":%s" % index - - control = iface['control'] - if control == "auto": - cverb = "auto" - elif control in ("hotplug",): - cverb = "allow-" + control - else: - cverb = "# control-" + control - - subst = iface.copy() - subst.update({'fullname': fullname, 'cverb': cverb}) - - return ("{cverb} {fullname}\n" - "iface {fullname} {inet} {mode}\n").format(**subst) - - -def _parse_deb_config_data(ifaces, contents, src_dir, src_path): - """Parses the file contents, placing result into ifaces. - - '_source_path' is added to every dictionary entry to define which file - the configration information came from. - - :param ifaces: interface dictionary - :param contents: contents of interfaces file - :param src_dir: directory interfaces file was located - :param src_path: file path the `contents` was read - """ - currif = None - for line in contents.splitlines(): - line = line.strip() - if line.startswith('#'): - continue - split = line.split(' ') - option = split[0] - if option == "source-directory": - parsed_src_dir = split[1] - if not parsed_src_dir.startswith("/"): - parsed_src_dir = os.path.join(src_dir, parsed_src_dir) - for expanded_path in glob.glob(parsed_src_dir): - dir_contents = os.listdir(expanded_path) - dir_contents = [ - os.path.join(expanded_path, path) - for path in dir_contents - if (os.path.isfile(os.path.join(expanded_path, path)) and - re.match("^[a-zA-Z0-9_-]+$", path) is not None) - ] - for entry in dir_contents: - with open(entry, "r") as fp: - src_data = fp.read().strip() - abs_entry = os.path.abspath(entry) - _parse_deb_config_data( - ifaces, src_data, - os.path.dirname(abs_entry), abs_entry) - elif option == "source": - new_src_path = split[1] - if not new_src_path.startswith("/"): - new_src_path = os.path.join(src_dir, new_src_path) - for expanded_path in glob.glob(new_src_path): - with open(expanded_path, "r") as fp: - src_data = fp.read().strip() - abs_path = os.path.abspath(expanded_path) - _parse_deb_config_data( - ifaces, src_data, - os.path.dirname(abs_path), abs_path) - elif option == "auto": - for iface in split[1:]: - if iface not in ifaces: - ifaces[iface] = { - # Include the source path this interface was found in. - "_source_path": src_path - } - ifaces[iface]['auto'] = True - elif option == "iface": - iface, family, method = split[1:4] - if iface not in ifaces: - ifaces[iface] = { - # Include the source path this interface was found in. - "_source_path": src_path - } - elif 'family' in ifaces[iface]: - raise ParserError( - "Interface %s can only be defined once. " - "Re-defined in '%s'." % (iface, src_path)) - ifaces[iface]['family'] = family - ifaces[iface]['method'] = method - currif = iface - elif option == "hwaddress": - ifaces[currif]['hwaddress'] = split[1] - elif option in NET_CONFIG_OPTIONS: - ifaces[currif][option] = split[1] - elif option in NET_CONFIG_COMMANDS: - if option not in ifaces[currif]: - ifaces[currif][option] = [] - ifaces[currif][option].append(' '.join(split[1:])) - elif option.startswith('dns-'): - if 'dns' not in ifaces[currif]: - ifaces[currif]['dns'] = {} - if option == 'dns-search': - ifaces[currif]['dns']['search'] = [] - for domain in split[1:]: - ifaces[currif]['dns']['search'].append(domain) - elif option == 'dns-nameservers': - ifaces[currif]['dns']['nameservers'] = [] - for server in split[1:]: - ifaces[currif]['dns']['nameservers'].append(server) - elif option.startswith('bridge_'): - if 'bridge' not in ifaces[currif]: - ifaces[currif]['bridge'] = {} - if option in NET_CONFIG_BRIDGE_OPTIONS: - bridge_option = option.replace('bridge_', '', 1) - ifaces[currif]['bridge'][bridge_option] = split[1] - elif option == "bridge_ports": - ifaces[currif]['bridge']['ports'] = [] - for iface in split[1:]: - ifaces[currif]['bridge']['ports'].append(iface) - elif option == "bridge_hw" and split[1].lower() == "mac": - ifaces[currif]['bridge']['mac'] = split[2] - elif option == "bridge_pathcost": - if 'pathcost' not in ifaces[currif]['bridge']: - ifaces[currif]['bridge']['pathcost'] = {} - ifaces[currif]['bridge']['pathcost'][split[1]] = split[2] - elif option == "bridge_portprio": - if 'portprio' not in ifaces[currif]['bridge']: - ifaces[currif]['bridge']['portprio'] = {} - ifaces[currif]['bridge']['portprio'][split[1]] = split[2] - elif option.startswith('bond-'): - if 'bond' not in ifaces[currif]: - ifaces[currif]['bond'] = {} - bond_option = option.replace('bond-', '', 1) - ifaces[currif]['bond'][bond_option] = split[1] - for iface in ifaces.keys(): - if 'auto' not in ifaces[iface]: - ifaces[iface]['auto'] = False - - -def _parse_deb_config(path): - """Parses a debian network configuration file.""" - ifaces = {} - with open(path, "r") as fp: - contents = fp.read().strip() - abs_path = os.path.abspath(path) - _parse_deb_config_data( - ifaces, contents, - os.path.dirname(abs_path), abs_path) - return ifaces - - -class Renderer(object): - """Renders network information in a debian format.""" - - def render_persistent_net(self, network_state): - ''' Given state, emit udev rules to map - mac to ifname - ''' - content = "" - interfaces = network_state.get('interfaces') - for iface in interfaces.values(): - # for physical interfaces write out a persist net udev rule - if iface['type'] == 'physical' and \ - 'name' in iface and iface.get('mac_address'): - content += generate_udev_rule(iface['name'], - iface['mac_address']) - - return content - - def render_route(self, route, indent=""): - """ When rendering routes for an iface, in some cases applying a route - may result in the route command returning non-zero which produces - some confusing output for users manually using ifup/ifdown[1]. To - that end, we will optionally include an '|| true' postfix to each - route line allowing users to work with ifup/ifdown without using - --force option. - - We may at somepoint not want to emit this additional postfix, and - add a 'strict' flag to this function. When called with strict=True, - then we will not append the postfix. - - 1. http://askubuntu.com/questions/168033/ - how-to-set-static-routes-in-ubuntu-server - """ - content = "" - up = indent + "post-up route add" - down = indent + "pre-down route del" - eol = " || true\n" - mapping = { - 'network': '-net', - 'netmask': 'netmask', - 'gateway': 'gw', - 'metric': 'metric', - } - if route['network'] == '0.0.0.0' and route['netmask'] == '0.0.0.0': - default_gw = " default gw %s" % route['gateway'] - content += up + default_gw + eol - content += down + default_gw + eol - elif route['network'] == '::' and route['netmask'] == 0: - # ipv6! - default_gw = " -A inet6 default gw %s" % route['gateway'] - content += up + default_gw + eol - content += down + default_gw + eol - else: - route_line = "" - for k in ['network', 'netmask', 'gateway', 'metric']: - if k in route: - route_line += " %s %s" % (mapping[k], route[k]) - content += up + route_line + eol - content += down + route_line + eol - - return content - - def render_interfaces(self, network_state): - ''' Given state, emit etc/network/interfaces content ''' - - content = "" - interfaces = network_state.get('interfaces') - ''' Apply a sort order to ensure that we write out - the physical interfaces first; this is critical for - bonding - ''' - order = { - 'physical': 0, - 'bond': 1, - 'bridge': 2, - 'vlan': 3, - } - content += "auto lo\niface lo inet loopback\n" - for dnskey, value in network_state.get('dns', {}).items(): - if len(value): - content += " dns-{} {}\n".format(dnskey, " ".join(value)) - - for iface in sorted(interfaces.values(), - key=lambda k: (order[k['type']], k['name'])): - - if content[-2:] != "\n\n": - content += "\n" - subnets = iface.get('subnets', {}) - if subnets: - for index, subnet in zip(range(0, len(subnets)), subnets): - if content[-2:] != "\n\n": - content += "\n" - iface['index'] = index - iface['mode'] = subnet['type'] - iface['control'] = subnet.get('control', 'auto') - if iface['mode'].endswith('6'): - iface['inet'] += '6' - elif iface['mode'] == 'static' \ - and ":" in subnet['address']: - iface['inet'] += '6' - if iface['mode'].startswith('dhcp'): - iface['mode'] = 'dhcp' - - content += _iface_start_entry(iface, index) - content += _iface_add_subnet(iface, subnet) - content += _iface_add_attrs(iface) - else: - # ifenslave docs say to auto the slave devices - if 'bond-master' in iface: - content += "auto {name}\n".format(**iface) - content += "iface {name} {inet} {mode}\n".format(**iface) - content += _iface_add_attrs(iface) - - for route in network_state.get('routes'): - content += self.render_route(route) - - # global replacements until v2 format - content = content.replace('mac_address', 'hwaddress') - return content - - def render_network_state(self, - target, network_state, eni="etc/network/interfaces", - links_prefix=LINKS_FNAME_PREFIX, - netrules='etc/udev/rules.d/70-persistent-net.rules'): - - fpeni = os.path.sep.join((target, eni,)) - util.ensure_dir(os.path.dirname(fpeni)) - with open(fpeni, 'w+') as f: - f.write(self.render_interfaces(network_state)) - - if netrules: - netrules = os.path.sep.join((target, netrules,)) - util.ensure_dir(os.path.dirname(netrules)) - with open(netrules, 'w+') as f: - f.write(self.render_persistent_net(network_state)) - - if links_prefix: - self.render_systemd_links(target, network_state, links_prefix) - - def render_systemd_links(self, target, network_state, - links_prefix=LINKS_FNAME_PREFIX): - fp_prefix = os.path.sep.join((target, links_prefix)) - for f in glob.glob(fp_prefix + "*"): - os.unlink(f) - - interfaces = network_state.get('interfaces') - for iface in interfaces.values(): - if (iface['type'] == 'physical' and 'name' in iface and - iface.get('mac_address')): - fname = fp_prefix + iface['name'] + ".link" - with open(fname, "w") as fp: - fp.write("\n".join([ - "[Match]", - "MACAddress=" + iface['mac_address'], - "", - "[Link]", - "Name=" + iface['name'], - "" - ])) diff --git a/cloudinit/net/klibc.py b/cloudinit/net/klibc.py deleted file mode 100644 index 958c264b..00000000 --- a/cloudinit/net/klibc.py +++ /dev/null @@ -1,191 +0,0 @@ -# Copyright (C) 2013-2014 Canonical Ltd. -# -# Author: Scott Moser -# Author: Blake Rouse -# -# Curtin is free software: you can redistribute it and/or modify it under -# the terms of the GNU Affero General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# Curtin is distributed in the hope that it will be useful, but WITHOUT ANY -# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS -# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for -# more details. -# -# You should have received a copy of the GNU Affero General Public License -# along with Curtin. If not, see . - -import base64 -import glob -import gzip -import io -import shlex - -from cloudinit.net import get_devicelist -from cloudinit.net import sys_netdev_info - -from cloudinit import util - - -def _load_shell_content(content, add_empty=False, empty_val=None): - """Given shell like syntax (key=value\nkey2=value2\n) in content - return the data in dictionary form. If 'add_empty' is True - then add entries in to the returned dictionary for 'VAR=' - variables. Set their value to empty_val.""" - data = {} - for line in shlex.split(content): - key, value = line.split("=", 1) - if not value: - value = empty_val - if add_empty or value: - data[key] = value - - return data - - -def _klibc_to_config_entry(content, mac_addrs=None): - """Convert a klibc writtent shell content file to a 'config' entry - When ip= is seen on the kernel command line in debian initramfs - and networking is brought up, ipconfig will populate - /run/net-.cfg. - - The files are shell style syntax, and examples are in the tests - provided here. There is no good documentation on this unfortunately. - - DEVICE= is expected/required and PROTO should indicate if - this is 'static' or 'dhcp'. - """ - - if mac_addrs is None: - mac_addrs = {} - - data = _load_shell_content(content) - try: - name = data['DEVICE'] - except KeyError: - raise ValueError("no 'DEVICE' entry in data") - - # ipconfig on precise does not write PROTO - proto = data.get('PROTO') - if not proto: - if data.get('filename'): - proto = 'dhcp' - else: - proto = 'static' - - if proto not in ('static', 'dhcp'): - raise ValueError("Unexpected value for PROTO: %s" % proto) - - iface = { - 'type': 'physical', - 'name': name, - 'subnets': [], - } - - if name in mac_addrs: - iface['mac_address'] = mac_addrs[name] - - # originally believed there might be IPV6* values - for v, pre in (('ipv4', 'IPV4'),): - # if no IPV4ADDR or IPV6ADDR, then go on. - if pre + "ADDR" not in data: - continue - subnet = {'type': proto, 'control': 'manual'} - - # these fields go right on the subnet - for key in ('NETMASK', 'BROADCAST', 'GATEWAY'): - if pre + key in data: - subnet[key.lower()] = data[pre + key] - - dns = [] - # handle IPV4DNS0 or IPV6DNS0 - for nskey in ('DNS0', 'DNS1'): - ns = data.get(pre + nskey) - # verify it has something other than 0.0.0.0 (or ipv6) - if ns and len(ns.strip(":.0")): - dns.append(data[pre + nskey]) - if dns: - subnet['dns_nameservers'] = dns - # add search to both ipv4 and ipv6, as it has no namespace - search = data.get('DOMAINSEARCH') - if search: - if ',' in search: - subnet['dns_search'] = search.split(",") - else: - subnet['dns_search'] = search.split() - - iface['subnets'].append(subnet) - - return name, iface - - -def config_from_klibc_net_cfg(files=None, mac_addrs=None): - if files is None: - files = glob.glob('/run/net*.conf') - - entries = [] - names = {} - for cfg_file in files: - name, entry = _klibc_to_config_entry(util.load_file(cfg_file), - mac_addrs=mac_addrs) - if name in names: - raise ValueError( - "device '%s' defined multiple times: %s and %s" % ( - name, names[name], cfg_file)) - - names[name] = cfg_file - entries.append(entry) - return {'config': entries, 'version': 1} - - -def _decomp_gzip(blob, strict=True): - # decompress blob. raise exception if not compressed unless strict=False. - with io.BytesIO(blob) as iobuf: - gzfp = None - try: - gzfp = gzip.GzipFile(mode="rb", fileobj=iobuf) - return gzfp.read() - except IOError: - if strict: - raise - return blob - finally: - if gzfp: - gzfp.close() - - -def _b64dgz(b64str, gzipped="try"): - # decode a base64 string. If gzipped is true, transparently uncompresss - # if gzipped is 'try', then try gunzip, returning the original on fail. - try: - blob = base64.b64decode(b64str) - except TypeError: - raise ValueError("Invalid base64 text: %s" % b64str) - - if not gzipped: - return blob - - return _decomp_gzip(blob, strict=gzipped != "try") - - -def read_kernel_cmdline_config(files=None, mac_addrs=None, cmdline=None): - if cmdline is None: - cmdline = util.get_cmdline() - - if 'network-config=' in cmdline: - data64 = None - for tok in cmdline.split(): - if tok.startswith("network-config="): - data64 = tok.split("=", 1)[1] - if data64: - return util.load_yaml(_b64dgz(data64)) - - if 'ip=' not in cmdline: - return None - - if mac_addrs is None: - mac_addrs = {k: sys_netdev_info(k, 'address') - for k in get_devicelist()} - - return config_from_klibc_net_cfg(files=files, mac_addrs=mac_addrs) diff --git a/cloudinit/net/renderers/__init__.py b/cloudinit/net/renderers/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/cloudinit/net/renderers/eni.py b/cloudinit/net/renderers/eni.py new file mode 100644 index 00000000..b427012e --- /dev/null +++ b/cloudinit/net/renderers/eni.py @@ -0,0 +1,399 @@ +# vi: ts=4 expandtab +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +import glob +import os +import re + +from cloudinit.net import LINKS_FNAME_PREFIX +from cloudinit.net import ParserError +from cloudinit.net.udev import generate_udev_rule +from cloudinit import util + + +NET_CONFIG_COMMANDS = [ + "pre-up", "up", "post-up", "down", "pre-down", "post-down", +] + +NET_CONFIG_BRIDGE_OPTIONS = [ + "bridge_ageing", "bridge_bridgeprio", "bridge_fd", "bridge_gcinit", + "bridge_hello", "bridge_maxage", "bridge_maxwait", "bridge_stp", +] + +NET_CONFIG_OPTIONS = [ + "address", "netmask", "broadcast", "network", "metric", "gateway", + "pointtopoint", "media", "mtu", "hostname", "leasehours", "leasetime", + "vendor", "client", "bootfile", "server", "hwaddr", "provider", "frame", + "netnum", "endpoint", "local", "ttl", +] + + +# TODO: switch valid_map based on mode inet/inet6 +def _iface_add_subnet(iface, subnet): + content = "" + valid_map = [ + 'address', + 'netmask', + 'broadcast', + 'metric', + 'gateway', + 'pointopoint', + 'mtu', + 'scope', + 'dns_search', + 'dns_nameservers', + ] + for key, value in subnet.items(): + if value and key in valid_map: + if type(value) == list: + value = " ".join(value) + if '_' in key: + key = key.replace('_', '-') + content += " {} {}\n".format(key, value) + + return content + + +# TODO: switch to valid_map for attrs +def _iface_add_attrs(iface): + content = "" + ignore_map = [ + 'control', + 'index', + 'inet', + 'mode', + 'name', + 'subnets', + 'type', + ] + if iface['type'] not in ['bond', 'bridge', 'vlan']: + ignore_map.append('mac_address') + + for key, value in iface.items(): + if value and key not in ignore_map: + if type(value) == list: + value = " ".join(value) + content += " {} {}\n".format(key, value) + + return content + + +def _iface_start_entry(iface, index): + fullname = iface['name'] + if index != 0: + fullname += ":%s" % index + + control = iface['control'] + if control == "auto": + cverb = "auto" + elif control in ("hotplug",): + cverb = "allow-" + control + else: + cverb = "# control-" + control + + subst = iface.copy() + subst.update({'fullname': fullname, 'cverb': cverb}) + + return ("{cverb} {fullname}\n" + "iface {fullname} {inet} {mode}\n").format(**subst) + + +def _parse_deb_config_data(ifaces, contents, src_dir, src_path): + """Parses the file contents, placing result into ifaces. + + '_source_path' is added to every dictionary entry to define which file + the configration information came from. + + :param ifaces: interface dictionary + :param contents: contents of interfaces file + :param src_dir: directory interfaces file was located + :param src_path: file path the `contents` was read + """ + currif = None + for line in contents.splitlines(): + line = line.strip() + if line.startswith('#'): + continue + split = line.split(' ') + option = split[0] + if option == "source-directory": + parsed_src_dir = split[1] + if not parsed_src_dir.startswith("/"): + parsed_src_dir = os.path.join(src_dir, parsed_src_dir) + for expanded_path in glob.glob(parsed_src_dir): + dir_contents = os.listdir(expanded_path) + dir_contents = [ + os.path.join(expanded_path, path) + for path in dir_contents + if (os.path.isfile(os.path.join(expanded_path, path)) and + re.match("^[a-zA-Z0-9_-]+$", path) is not None) + ] + for entry in dir_contents: + with open(entry, "r") as fp: + src_data = fp.read().strip() + abs_entry = os.path.abspath(entry) + _parse_deb_config_data( + ifaces, src_data, + os.path.dirname(abs_entry), abs_entry) + elif option == "source": + new_src_path = split[1] + if not new_src_path.startswith("/"): + new_src_path = os.path.join(src_dir, new_src_path) + for expanded_path in glob.glob(new_src_path): + with open(expanded_path, "r") as fp: + src_data = fp.read().strip() + abs_path = os.path.abspath(expanded_path) + _parse_deb_config_data( + ifaces, src_data, + os.path.dirname(abs_path), abs_path) + elif option == "auto": + for iface in split[1:]: + if iface not in ifaces: + ifaces[iface] = { + # Include the source path this interface was found in. + "_source_path": src_path + } + ifaces[iface]['auto'] = True + elif option == "iface": + iface, family, method = split[1:4] + if iface not in ifaces: + ifaces[iface] = { + # Include the source path this interface was found in. + "_source_path": src_path + } + elif 'family' in ifaces[iface]: + raise ParserError( + "Interface %s can only be defined once. " + "Re-defined in '%s'." % (iface, src_path)) + ifaces[iface]['family'] = family + ifaces[iface]['method'] = method + currif = iface + elif option == "hwaddress": + ifaces[currif]['hwaddress'] = split[1] + elif option in NET_CONFIG_OPTIONS: + ifaces[currif][option] = split[1] + elif option in NET_CONFIG_COMMANDS: + if option not in ifaces[currif]: + ifaces[currif][option] = [] + ifaces[currif][option].append(' '.join(split[1:])) + elif option.startswith('dns-'): + if 'dns' not in ifaces[currif]: + ifaces[currif]['dns'] = {} + if option == 'dns-search': + ifaces[currif]['dns']['search'] = [] + for domain in split[1:]: + ifaces[currif]['dns']['search'].append(domain) + elif option == 'dns-nameservers': + ifaces[currif]['dns']['nameservers'] = [] + for server in split[1:]: + ifaces[currif]['dns']['nameservers'].append(server) + elif option.startswith('bridge_'): + if 'bridge' not in ifaces[currif]: + ifaces[currif]['bridge'] = {} + if option in NET_CONFIG_BRIDGE_OPTIONS: + bridge_option = option.replace('bridge_', '', 1) + ifaces[currif]['bridge'][bridge_option] = split[1] + elif option == "bridge_ports": + ifaces[currif]['bridge']['ports'] = [] + for iface in split[1:]: + ifaces[currif]['bridge']['ports'].append(iface) + elif option == "bridge_hw" and split[1].lower() == "mac": + ifaces[currif]['bridge']['mac'] = split[2] + elif option == "bridge_pathcost": + if 'pathcost' not in ifaces[currif]['bridge']: + ifaces[currif]['bridge']['pathcost'] = {} + ifaces[currif]['bridge']['pathcost'][split[1]] = split[2] + elif option == "bridge_portprio": + if 'portprio' not in ifaces[currif]['bridge']: + ifaces[currif]['bridge']['portprio'] = {} + ifaces[currif]['bridge']['portprio'][split[1]] = split[2] + elif option.startswith('bond-'): + if 'bond' not in ifaces[currif]: + ifaces[currif]['bond'] = {} + bond_option = option.replace('bond-', '', 1) + ifaces[currif]['bond'][bond_option] = split[1] + for iface in ifaces.keys(): + if 'auto' not in ifaces[iface]: + ifaces[iface]['auto'] = False + + +def _parse_deb_config(path): + """Parses a debian network configuration file.""" + ifaces = {} + with open(path, "r") as fp: + contents = fp.read().strip() + abs_path = os.path.abspath(path) + _parse_deb_config_data( + ifaces, contents, + os.path.dirname(abs_path), abs_path) + return ifaces + + +class Renderer(object): + """Renders network information in a /etc/network/interfaces format.""" + + def render_persistent_net(self, network_state): + """Given state, emit udev rules to map mac to ifname.""" + content = "" + interfaces = network_state.get('interfaces') + for iface in interfaces.values(): + # for physical interfaces write out a persist net udev rule + if iface['type'] == 'physical' and \ + 'name' in iface and iface.get('mac_address'): + content += generate_udev_rule(iface['name'], + iface['mac_address']) + + return content + + def render_route(self, route, indent=""): + """ When rendering routes for an iface, in some cases applying a route + may result in the route command returning non-zero which produces + some confusing output for users manually using ifup/ifdown[1]. To + that end, we will optionally include an '|| true' postfix to each + route line allowing users to work with ifup/ifdown without using + --force option. + + We may at somepoint not want to emit this additional postfix, and + add a 'strict' flag to this function. When called with strict=True, + then we will not append the postfix. + + 1. http://askubuntu.com/questions/168033/ + how-to-set-static-routes-in-ubuntu-server + """ + content = "" + up = indent + "post-up route add" + down = indent + "pre-down route del" + eol = " || true\n" + mapping = { + 'network': '-net', + 'netmask': 'netmask', + 'gateway': 'gw', + 'metric': 'metric', + } + if route['network'] == '0.0.0.0' and route['netmask'] == '0.0.0.0': + default_gw = " default gw %s" % route['gateway'] + content += up + default_gw + eol + content += down + default_gw + eol + elif route['network'] == '::' and route['netmask'] == 0: + # ipv6! + default_gw = " -A inet6 default gw %s" % route['gateway'] + content += up + default_gw + eol + content += down + default_gw + eol + else: + route_line = "" + for k in ['network', 'netmask', 'gateway', 'metric']: + if k in route: + route_line += " %s %s" % (mapping[k], route[k]) + content += up + route_line + eol + content += down + route_line + eol + + return content + + def render_interfaces(self, network_state): + ''' Given state, emit etc/network/interfaces content ''' + + content = "" + interfaces = network_state.get('interfaces') + ''' Apply a sort order to ensure that we write out + the physical interfaces first; this is critical for + bonding + ''' + order = { + 'physical': 0, + 'bond': 1, + 'bridge': 2, + 'vlan': 3, + } + content += "auto lo\niface lo inet loopback\n" + for dnskey, value in network_state.get('dns', {}).items(): + if len(value): + content += " dns-{} {}\n".format(dnskey, " ".join(value)) + + for iface in sorted(interfaces.values(), + key=lambda k: (order[k['type']], k['name'])): + + if content[-2:] != "\n\n": + content += "\n" + subnets = iface.get('subnets', {}) + if subnets: + for index, subnet in zip(range(0, len(subnets)), subnets): + if content[-2:] != "\n\n": + content += "\n" + iface['index'] = index + iface['mode'] = subnet['type'] + iface['control'] = subnet.get('control', 'auto') + if iface['mode'].endswith('6'): + iface['inet'] += '6' + elif iface['mode'] == 'static' \ + and ":" in subnet['address']: + iface['inet'] += '6' + if iface['mode'].startswith('dhcp'): + iface['mode'] = 'dhcp' + + content += _iface_start_entry(iface, index) + content += _iface_add_subnet(iface, subnet) + content += _iface_add_attrs(iface) + else: + # ifenslave docs say to auto the slave devices + if 'bond-master' in iface: + content += "auto {name}\n".format(**iface) + content += "iface {name} {inet} {mode}\n".format(**iface) + content += _iface_add_attrs(iface) + + for route in network_state.get('routes'): + content += self.render_route(route) + + # global replacements until v2 format + content = content.replace('mac_address', 'hwaddress') + return content + + def render_network_state(self, + target, network_state, eni="etc/network/interfaces", + links_prefix=LINKS_FNAME_PREFIX, + netrules='etc/udev/rules.d/70-persistent-net.rules'): + + fpeni = os.path.sep.join((target, eni,)) + util.ensure_dir(os.path.dirname(fpeni)) + with open(fpeni, 'w+') as f: + f.write(self.render_interfaces(network_state)) + + if netrules: + netrules = os.path.sep.join((target, netrules,)) + util.ensure_dir(os.path.dirname(netrules)) + with open(netrules, 'w+') as f: + f.write(self.render_persistent_net(network_state)) + + if links_prefix: + self.render_systemd_links(target, network_state, links_prefix) + + def render_systemd_links(self, target, network_state, + links_prefix=LINKS_FNAME_PREFIX): + fp_prefix = os.path.sep.join((target, links_prefix)) + for f in glob.glob(fp_prefix + "*"): + os.unlink(f) + + interfaces = network_state.get('interfaces') + for iface in interfaces.values(): + if (iface['type'] == 'physical' and 'name' in iface and + iface.get('mac_address')): + fname = fp_prefix + iface['name'] + ".link" + with open(fname, "w") as fp: + fp.write("\n".join([ + "[Match]", + "MACAddress=" + iface['mac_address'], + "", + "[Link]", + "Name=" + iface['name'], + "" + ])) diff --git a/cloudinit/stages.py b/cloudinit/stages.py index e6bd34fe..1112bf0d 100644 --- a/cloudinit/stages.py +++ b/cloudinit/stages.py @@ -43,7 +43,7 @@ from cloudinit import distros from cloudinit import helpers from cloudinit import importer from cloudinit import log as logging -from cloudinit.net import klibc +from cloudinit.net import cmdline from cloudinit import sources from cloudinit import type_utils from cloudinit import util @@ -579,7 +579,7 @@ class Init(object): if os.path.exists(disable_file): return (None, disable_file) - cmdline_cfg = ('cmdline', klibc.read_kernel_cmdline_config()) + cmdline_cfg = ('cmdline', cmdline.read_kernel_cmdline_config()) dscfg = ('ds', None) if self.datasource and hasattr(self.datasource, 'network_config'): dscfg = ('ds', self.datasource.network_config) -- cgit v1.2.3 From 281551d4125b40836686793b6a0f8d2c34c3357f Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Tue, 10 May 2016 14:10:54 -0700 Subject: Move net/renderers -> net --- cloudinit/distros/debian.py | 2 +- cloudinit/net/eni.py | 399 ++++++++++++++++++++++++++++++++++++ cloudinit/net/renderers/__init__.py | 0 cloudinit/net/renderers/eni.py | 399 ------------------------------------ 4 files changed, 400 insertions(+), 400 deletions(-) create mode 100644 cloudinit/net/eni.py delete mode 100644 cloudinit/net/renderers/__init__.py delete mode 100644 cloudinit/net/renderers/eni.py (limited to 'cloudinit/net') diff --git a/cloudinit/distros/debian.py b/cloudinit/distros/debian.py index 465413a8..ca069a60 100644 --- a/cloudinit/distros/debian.py +++ b/cloudinit/distros/debian.py @@ -27,7 +27,7 @@ from cloudinit import helpers from cloudinit import log as logging from cloudinit import util from cloudinit import net -from cloudinit.net.renderers import eni +from cloudinit.net import eni from cloudinit.distros.parsers.hostname import HostnameConf diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py new file mode 100644 index 00000000..b427012e --- /dev/null +++ b/cloudinit/net/eni.py @@ -0,0 +1,399 @@ +# vi: ts=4 expandtab +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +import glob +import os +import re + +from cloudinit.net import LINKS_FNAME_PREFIX +from cloudinit.net import ParserError +from cloudinit.net.udev import generate_udev_rule +from cloudinit import util + + +NET_CONFIG_COMMANDS = [ + "pre-up", "up", "post-up", "down", "pre-down", "post-down", +] + +NET_CONFIG_BRIDGE_OPTIONS = [ + "bridge_ageing", "bridge_bridgeprio", "bridge_fd", "bridge_gcinit", + "bridge_hello", "bridge_maxage", "bridge_maxwait", "bridge_stp", +] + +NET_CONFIG_OPTIONS = [ + "address", "netmask", "broadcast", "network", "metric", "gateway", + "pointtopoint", "media", "mtu", "hostname", "leasehours", "leasetime", + "vendor", "client", "bootfile", "server", "hwaddr", "provider", "frame", + "netnum", "endpoint", "local", "ttl", +] + + +# TODO: switch valid_map based on mode inet/inet6 +def _iface_add_subnet(iface, subnet): + content = "" + valid_map = [ + 'address', + 'netmask', + 'broadcast', + 'metric', + 'gateway', + 'pointopoint', + 'mtu', + 'scope', + 'dns_search', + 'dns_nameservers', + ] + for key, value in subnet.items(): + if value and key in valid_map: + if type(value) == list: + value = " ".join(value) + if '_' in key: + key = key.replace('_', '-') + content += " {} {}\n".format(key, value) + + return content + + +# TODO: switch to valid_map for attrs +def _iface_add_attrs(iface): + content = "" + ignore_map = [ + 'control', + 'index', + 'inet', + 'mode', + 'name', + 'subnets', + 'type', + ] + if iface['type'] not in ['bond', 'bridge', 'vlan']: + ignore_map.append('mac_address') + + for key, value in iface.items(): + if value and key not in ignore_map: + if type(value) == list: + value = " ".join(value) + content += " {} {}\n".format(key, value) + + return content + + +def _iface_start_entry(iface, index): + fullname = iface['name'] + if index != 0: + fullname += ":%s" % index + + control = iface['control'] + if control == "auto": + cverb = "auto" + elif control in ("hotplug",): + cverb = "allow-" + control + else: + cverb = "# control-" + control + + subst = iface.copy() + subst.update({'fullname': fullname, 'cverb': cverb}) + + return ("{cverb} {fullname}\n" + "iface {fullname} {inet} {mode}\n").format(**subst) + + +def _parse_deb_config_data(ifaces, contents, src_dir, src_path): + """Parses the file contents, placing result into ifaces. + + '_source_path' is added to every dictionary entry to define which file + the configration information came from. + + :param ifaces: interface dictionary + :param contents: contents of interfaces file + :param src_dir: directory interfaces file was located + :param src_path: file path the `contents` was read + """ + currif = None + for line in contents.splitlines(): + line = line.strip() + if line.startswith('#'): + continue + split = line.split(' ') + option = split[0] + if option == "source-directory": + parsed_src_dir = split[1] + if not parsed_src_dir.startswith("/"): + parsed_src_dir = os.path.join(src_dir, parsed_src_dir) + for expanded_path in glob.glob(parsed_src_dir): + dir_contents = os.listdir(expanded_path) + dir_contents = [ + os.path.join(expanded_path, path) + for path in dir_contents + if (os.path.isfile(os.path.join(expanded_path, path)) and + re.match("^[a-zA-Z0-9_-]+$", path) is not None) + ] + for entry in dir_contents: + with open(entry, "r") as fp: + src_data = fp.read().strip() + abs_entry = os.path.abspath(entry) + _parse_deb_config_data( + ifaces, src_data, + os.path.dirname(abs_entry), abs_entry) + elif option == "source": + new_src_path = split[1] + if not new_src_path.startswith("/"): + new_src_path = os.path.join(src_dir, new_src_path) + for expanded_path in glob.glob(new_src_path): + with open(expanded_path, "r") as fp: + src_data = fp.read().strip() + abs_path = os.path.abspath(expanded_path) + _parse_deb_config_data( + ifaces, src_data, + os.path.dirname(abs_path), abs_path) + elif option == "auto": + for iface in split[1:]: + if iface not in ifaces: + ifaces[iface] = { + # Include the source path this interface was found in. + "_source_path": src_path + } + ifaces[iface]['auto'] = True + elif option == "iface": + iface, family, method = split[1:4] + if iface not in ifaces: + ifaces[iface] = { + # Include the source path this interface was found in. + "_source_path": src_path + } + elif 'family' in ifaces[iface]: + raise ParserError( + "Interface %s can only be defined once. " + "Re-defined in '%s'." % (iface, src_path)) + ifaces[iface]['family'] = family + ifaces[iface]['method'] = method + currif = iface + elif option == "hwaddress": + ifaces[currif]['hwaddress'] = split[1] + elif option in NET_CONFIG_OPTIONS: + ifaces[currif][option] = split[1] + elif option in NET_CONFIG_COMMANDS: + if option not in ifaces[currif]: + ifaces[currif][option] = [] + ifaces[currif][option].append(' '.join(split[1:])) + elif option.startswith('dns-'): + if 'dns' not in ifaces[currif]: + ifaces[currif]['dns'] = {} + if option == 'dns-search': + ifaces[currif]['dns']['search'] = [] + for domain in split[1:]: + ifaces[currif]['dns']['search'].append(domain) + elif option == 'dns-nameservers': + ifaces[currif]['dns']['nameservers'] = [] + for server in split[1:]: + ifaces[currif]['dns']['nameservers'].append(server) + elif option.startswith('bridge_'): + if 'bridge' not in ifaces[currif]: + ifaces[currif]['bridge'] = {} + if option in NET_CONFIG_BRIDGE_OPTIONS: + bridge_option = option.replace('bridge_', '', 1) + ifaces[currif]['bridge'][bridge_option] = split[1] + elif option == "bridge_ports": + ifaces[currif]['bridge']['ports'] = [] + for iface in split[1:]: + ifaces[currif]['bridge']['ports'].append(iface) + elif option == "bridge_hw" and split[1].lower() == "mac": + ifaces[currif]['bridge']['mac'] = split[2] + elif option == "bridge_pathcost": + if 'pathcost' not in ifaces[currif]['bridge']: + ifaces[currif]['bridge']['pathcost'] = {} + ifaces[currif]['bridge']['pathcost'][split[1]] = split[2] + elif option == "bridge_portprio": + if 'portprio' not in ifaces[currif]['bridge']: + ifaces[currif]['bridge']['portprio'] = {} + ifaces[currif]['bridge']['portprio'][split[1]] = split[2] + elif option.startswith('bond-'): + if 'bond' not in ifaces[currif]: + ifaces[currif]['bond'] = {} + bond_option = option.replace('bond-', '', 1) + ifaces[currif]['bond'][bond_option] = split[1] + for iface in ifaces.keys(): + if 'auto' not in ifaces[iface]: + ifaces[iface]['auto'] = False + + +def _parse_deb_config(path): + """Parses a debian network configuration file.""" + ifaces = {} + with open(path, "r") as fp: + contents = fp.read().strip() + abs_path = os.path.abspath(path) + _parse_deb_config_data( + ifaces, contents, + os.path.dirname(abs_path), abs_path) + return ifaces + + +class Renderer(object): + """Renders network information in a /etc/network/interfaces format.""" + + def render_persistent_net(self, network_state): + """Given state, emit udev rules to map mac to ifname.""" + content = "" + interfaces = network_state.get('interfaces') + for iface in interfaces.values(): + # for physical interfaces write out a persist net udev rule + if iface['type'] == 'physical' and \ + 'name' in iface and iface.get('mac_address'): + content += generate_udev_rule(iface['name'], + iface['mac_address']) + + return content + + def render_route(self, route, indent=""): + """ When rendering routes for an iface, in some cases applying a route + may result in the route command returning non-zero which produces + some confusing output for users manually using ifup/ifdown[1]. To + that end, we will optionally include an '|| true' postfix to each + route line allowing users to work with ifup/ifdown without using + --force option. + + We may at somepoint not want to emit this additional postfix, and + add a 'strict' flag to this function. When called with strict=True, + then we will not append the postfix. + + 1. http://askubuntu.com/questions/168033/ + how-to-set-static-routes-in-ubuntu-server + """ + content = "" + up = indent + "post-up route add" + down = indent + "pre-down route del" + eol = " || true\n" + mapping = { + 'network': '-net', + 'netmask': 'netmask', + 'gateway': 'gw', + 'metric': 'metric', + } + if route['network'] == '0.0.0.0' and route['netmask'] == '0.0.0.0': + default_gw = " default gw %s" % route['gateway'] + content += up + default_gw + eol + content += down + default_gw + eol + elif route['network'] == '::' and route['netmask'] == 0: + # ipv6! + default_gw = " -A inet6 default gw %s" % route['gateway'] + content += up + default_gw + eol + content += down + default_gw + eol + else: + route_line = "" + for k in ['network', 'netmask', 'gateway', 'metric']: + if k in route: + route_line += " %s %s" % (mapping[k], route[k]) + content += up + route_line + eol + content += down + route_line + eol + + return content + + def render_interfaces(self, network_state): + ''' Given state, emit etc/network/interfaces content ''' + + content = "" + interfaces = network_state.get('interfaces') + ''' Apply a sort order to ensure that we write out + the physical interfaces first; this is critical for + bonding + ''' + order = { + 'physical': 0, + 'bond': 1, + 'bridge': 2, + 'vlan': 3, + } + content += "auto lo\niface lo inet loopback\n" + for dnskey, value in network_state.get('dns', {}).items(): + if len(value): + content += " dns-{} {}\n".format(dnskey, " ".join(value)) + + for iface in sorted(interfaces.values(), + key=lambda k: (order[k['type']], k['name'])): + + if content[-2:] != "\n\n": + content += "\n" + subnets = iface.get('subnets', {}) + if subnets: + for index, subnet in zip(range(0, len(subnets)), subnets): + if content[-2:] != "\n\n": + content += "\n" + iface['index'] = index + iface['mode'] = subnet['type'] + iface['control'] = subnet.get('control', 'auto') + if iface['mode'].endswith('6'): + iface['inet'] += '6' + elif iface['mode'] == 'static' \ + and ":" in subnet['address']: + iface['inet'] += '6' + if iface['mode'].startswith('dhcp'): + iface['mode'] = 'dhcp' + + content += _iface_start_entry(iface, index) + content += _iface_add_subnet(iface, subnet) + content += _iface_add_attrs(iface) + else: + # ifenslave docs say to auto the slave devices + if 'bond-master' in iface: + content += "auto {name}\n".format(**iface) + content += "iface {name} {inet} {mode}\n".format(**iface) + content += _iface_add_attrs(iface) + + for route in network_state.get('routes'): + content += self.render_route(route) + + # global replacements until v2 format + content = content.replace('mac_address', 'hwaddress') + return content + + def render_network_state(self, + target, network_state, eni="etc/network/interfaces", + links_prefix=LINKS_FNAME_PREFIX, + netrules='etc/udev/rules.d/70-persistent-net.rules'): + + fpeni = os.path.sep.join((target, eni,)) + util.ensure_dir(os.path.dirname(fpeni)) + with open(fpeni, 'w+') as f: + f.write(self.render_interfaces(network_state)) + + if netrules: + netrules = os.path.sep.join((target, netrules,)) + util.ensure_dir(os.path.dirname(netrules)) + with open(netrules, 'w+') as f: + f.write(self.render_persistent_net(network_state)) + + if links_prefix: + self.render_systemd_links(target, network_state, links_prefix) + + def render_systemd_links(self, target, network_state, + links_prefix=LINKS_FNAME_PREFIX): + fp_prefix = os.path.sep.join((target, links_prefix)) + for f in glob.glob(fp_prefix + "*"): + os.unlink(f) + + interfaces = network_state.get('interfaces') + for iface in interfaces.values(): + if (iface['type'] == 'physical' and 'name' in iface and + iface.get('mac_address')): + fname = fp_prefix + iface['name'] + ".link" + with open(fname, "w") as fp: + fp.write("\n".join([ + "[Match]", + "MACAddress=" + iface['mac_address'], + "", + "[Link]", + "Name=" + iface['name'], + "" + ])) diff --git a/cloudinit/net/renderers/__init__.py b/cloudinit/net/renderers/__init__.py deleted file mode 100644 index e69de29b..00000000 diff --git a/cloudinit/net/renderers/eni.py b/cloudinit/net/renderers/eni.py deleted file mode 100644 index b427012e..00000000 --- a/cloudinit/net/renderers/eni.py +++ /dev/null @@ -1,399 +0,0 @@ -# vi: ts=4 expandtab -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License version 3, as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -import glob -import os -import re - -from cloudinit.net import LINKS_FNAME_PREFIX -from cloudinit.net import ParserError -from cloudinit.net.udev import generate_udev_rule -from cloudinit import util - - -NET_CONFIG_COMMANDS = [ - "pre-up", "up", "post-up", "down", "pre-down", "post-down", -] - -NET_CONFIG_BRIDGE_OPTIONS = [ - "bridge_ageing", "bridge_bridgeprio", "bridge_fd", "bridge_gcinit", - "bridge_hello", "bridge_maxage", "bridge_maxwait", "bridge_stp", -] - -NET_CONFIG_OPTIONS = [ - "address", "netmask", "broadcast", "network", "metric", "gateway", - "pointtopoint", "media", "mtu", "hostname", "leasehours", "leasetime", - "vendor", "client", "bootfile", "server", "hwaddr", "provider", "frame", - "netnum", "endpoint", "local", "ttl", -] - - -# TODO: switch valid_map based on mode inet/inet6 -def _iface_add_subnet(iface, subnet): - content = "" - valid_map = [ - 'address', - 'netmask', - 'broadcast', - 'metric', - 'gateway', - 'pointopoint', - 'mtu', - 'scope', - 'dns_search', - 'dns_nameservers', - ] - for key, value in subnet.items(): - if value and key in valid_map: - if type(value) == list: - value = " ".join(value) - if '_' in key: - key = key.replace('_', '-') - content += " {} {}\n".format(key, value) - - return content - - -# TODO: switch to valid_map for attrs -def _iface_add_attrs(iface): - content = "" - ignore_map = [ - 'control', - 'index', - 'inet', - 'mode', - 'name', - 'subnets', - 'type', - ] - if iface['type'] not in ['bond', 'bridge', 'vlan']: - ignore_map.append('mac_address') - - for key, value in iface.items(): - if value and key not in ignore_map: - if type(value) == list: - value = " ".join(value) - content += " {} {}\n".format(key, value) - - return content - - -def _iface_start_entry(iface, index): - fullname = iface['name'] - if index != 0: - fullname += ":%s" % index - - control = iface['control'] - if control == "auto": - cverb = "auto" - elif control in ("hotplug",): - cverb = "allow-" + control - else: - cverb = "# control-" + control - - subst = iface.copy() - subst.update({'fullname': fullname, 'cverb': cverb}) - - return ("{cverb} {fullname}\n" - "iface {fullname} {inet} {mode}\n").format(**subst) - - -def _parse_deb_config_data(ifaces, contents, src_dir, src_path): - """Parses the file contents, placing result into ifaces. - - '_source_path' is added to every dictionary entry to define which file - the configration information came from. - - :param ifaces: interface dictionary - :param contents: contents of interfaces file - :param src_dir: directory interfaces file was located - :param src_path: file path the `contents` was read - """ - currif = None - for line in contents.splitlines(): - line = line.strip() - if line.startswith('#'): - continue - split = line.split(' ') - option = split[0] - if option == "source-directory": - parsed_src_dir = split[1] - if not parsed_src_dir.startswith("/"): - parsed_src_dir = os.path.join(src_dir, parsed_src_dir) - for expanded_path in glob.glob(parsed_src_dir): - dir_contents = os.listdir(expanded_path) - dir_contents = [ - os.path.join(expanded_path, path) - for path in dir_contents - if (os.path.isfile(os.path.join(expanded_path, path)) and - re.match("^[a-zA-Z0-9_-]+$", path) is not None) - ] - for entry in dir_contents: - with open(entry, "r") as fp: - src_data = fp.read().strip() - abs_entry = os.path.abspath(entry) - _parse_deb_config_data( - ifaces, src_data, - os.path.dirname(abs_entry), abs_entry) - elif option == "source": - new_src_path = split[1] - if not new_src_path.startswith("/"): - new_src_path = os.path.join(src_dir, new_src_path) - for expanded_path in glob.glob(new_src_path): - with open(expanded_path, "r") as fp: - src_data = fp.read().strip() - abs_path = os.path.abspath(expanded_path) - _parse_deb_config_data( - ifaces, src_data, - os.path.dirname(abs_path), abs_path) - elif option == "auto": - for iface in split[1:]: - if iface not in ifaces: - ifaces[iface] = { - # Include the source path this interface was found in. - "_source_path": src_path - } - ifaces[iface]['auto'] = True - elif option == "iface": - iface, family, method = split[1:4] - if iface not in ifaces: - ifaces[iface] = { - # Include the source path this interface was found in. - "_source_path": src_path - } - elif 'family' in ifaces[iface]: - raise ParserError( - "Interface %s can only be defined once. " - "Re-defined in '%s'." % (iface, src_path)) - ifaces[iface]['family'] = family - ifaces[iface]['method'] = method - currif = iface - elif option == "hwaddress": - ifaces[currif]['hwaddress'] = split[1] - elif option in NET_CONFIG_OPTIONS: - ifaces[currif][option] = split[1] - elif option in NET_CONFIG_COMMANDS: - if option not in ifaces[currif]: - ifaces[currif][option] = [] - ifaces[currif][option].append(' '.join(split[1:])) - elif option.startswith('dns-'): - if 'dns' not in ifaces[currif]: - ifaces[currif]['dns'] = {} - if option == 'dns-search': - ifaces[currif]['dns']['search'] = [] - for domain in split[1:]: - ifaces[currif]['dns']['search'].append(domain) - elif option == 'dns-nameservers': - ifaces[currif]['dns']['nameservers'] = [] - for server in split[1:]: - ifaces[currif]['dns']['nameservers'].append(server) - elif option.startswith('bridge_'): - if 'bridge' not in ifaces[currif]: - ifaces[currif]['bridge'] = {} - if option in NET_CONFIG_BRIDGE_OPTIONS: - bridge_option = option.replace('bridge_', '', 1) - ifaces[currif]['bridge'][bridge_option] = split[1] - elif option == "bridge_ports": - ifaces[currif]['bridge']['ports'] = [] - for iface in split[1:]: - ifaces[currif]['bridge']['ports'].append(iface) - elif option == "bridge_hw" and split[1].lower() == "mac": - ifaces[currif]['bridge']['mac'] = split[2] - elif option == "bridge_pathcost": - if 'pathcost' not in ifaces[currif]['bridge']: - ifaces[currif]['bridge']['pathcost'] = {} - ifaces[currif]['bridge']['pathcost'][split[1]] = split[2] - elif option == "bridge_portprio": - if 'portprio' not in ifaces[currif]['bridge']: - ifaces[currif]['bridge']['portprio'] = {} - ifaces[currif]['bridge']['portprio'][split[1]] = split[2] - elif option.startswith('bond-'): - if 'bond' not in ifaces[currif]: - ifaces[currif]['bond'] = {} - bond_option = option.replace('bond-', '', 1) - ifaces[currif]['bond'][bond_option] = split[1] - for iface in ifaces.keys(): - if 'auto' not in ifaces[iface]: - ifaces[iface]['auto'] = False - - -def _parse_deb_config(path): - """Parses a debian network configuration file.""" - ifaces = {} - with open(path, "r") as fp: - contents = fp.read().strip() - abs_path = os.path.abspath(path) - _parse_deb_config_data( - ifaces, contents, - os.path.dirname(abs_path), abs_path) - return ifaces - - -class Renderer(object): - """Renders network information in a /etc/network/interfaces format.""" - - def render_persistent_net(self, network_state): - """Given state, emit udev rules to map mac to ifname.""" - content = "" - interfaces = network_state.get('interfaces') - for iface in interfaces.values(): - # for physical interfaces write out a persist net udev rule - if iface['type'] == 'physical' and \ - 'name' in iface and iface.get('mac_address'): - content += generate_udev_rule(iface['name'], - iface['mac_address']) - - return content - - def render_route(self, route, indent=""): - """ When rendering routes for an iface, in some cases applying a route - may result in the route command returning non-zero which produces - some confusing output for users manually using ifup/ifdown[1]. To - that end, we will optionally include an '|| true' postfix to each - route line allowing users to work with ifup/ifdown without using - --force option. - - We may at somepoint not want to emit this additional postfix, and - add a 'strict' flag to this function. When called with strict=True, - then we will not append the postfix. - - 1. http://askubuntu.com/questions/168033/ - how-to-set-static-routes-in-ubuntu-server - """ - content = "" - up = indent + "post-up route add" - down = indent + "pre-down route del" - eol = " || true\n" - mapping = { - 'network': '-net', - 'netmask': 'netmask', - 'gateway': 'gw', - 'metric': 'metric', - } - if route['network'] == '0.0.0.0' and route['netmask'] == '0.0.0.0': - default_gw = " default gw %s" % route['gateway'] - content += up + default_gw + eol - content += down + default_gw + eol - elif route['network'] == '::' and route['netmask'] == 0: - # ipv6! - default_gw = " -A inet6 default gw %s" % route['gateway'] - content += up + default_gw + eol - content += down + default_gw + eol - else: - route_line = "" - for k in ['network', 'netmask', 'gateway', 'metric']: - if k in route: - route_line += " %s %s" % (mapping[k], route[k]) - content += up + route_line + eol - content += down + route_line + eol - - return content - - def render_interfaces(self, network_state): - ''' Given state, emit etc/network/interfaces content ''' - - content = "" - interfaces = network_state.get('interfaces') - ''' Apply a sort order to ensure that we write out - the physical interfaces first; this is critical for - bonding - ''' - order = { - 'physical': 0, - 'bond': 1, - 'bridge': 2, - 'vlan': 3, - } - content += "auto lo\niface lo inet loopback\n" - for dnskey, value in network_state.get('dns', {}).items(): - if len(value): - content += " dns-{} {}\n".format(dnskey, " ".join(value)) - - for iface in sorted(interfaces.values(), - key=lambda k: (order[k['type']], k['name'])): - - if content[-2:] != "\n\n": - content += "\n" - subnets = iface.get('subnets', {}) - if subnets: - for index, subnet in zip(range(0, len(subnets)), subnets): - if content[-2:] != "\n\n": - content += "\n" - iface['index'] = index - iface['mode'] = subnet['type'] - iface['control'] = subnet.get('control', 'auto') - if iface['mode'].endswith('6'): - iface['inet'] += '6' - elif iface['mode'] == 'static' \ - and ":" in subnet['address']: - iface['inet'] += '6' - if iface['mode'].startswith('dhcp'): - iface['mode'] = 'dhcp' - - content += _iface_start_entry(iface, index) - content += _iface_add_subnet(iface, subnet) - content += _iface_add_attrs(iface) - else: - # ifenslave docs say to auto the slave devices - if 'bond-master' in iface: - content += "auto {name}\n".format(**iface) - content += "iface {name} {inet} {mode}\n".format(**iface) - content += _iface_add_attrs(iface) - - for route in network_state.get('routes'): - content += self.render_route(route) - - # global replacements until v2 format - content = content.replace('mac_address', 'hwaddress') - return content - - def render_network_state(self, - target, network_state, eni="etc/network/interfaces", - links_prefix=LINKS_FNAME_PREFIX, - netrules='etc/udev/rules.d/70-persistent-net.rules'): - - fpeni = os.path.sep.join((target, eni,)) - util.ensure_dir(os.path.dirname(fpeni)) - with open(fpeni, 'w+') as f: - f.write(self.render_interfaces(network_state)) - - if netrules: - netrules = os.path.sep.join((target, netrules,)) - util.ensure_dir(os.path.dirname(netrules)) - with open(netrules, 'w+') as f: - f.write(self.render_persistent_net(network_state)) - - if links_prefix: - self.render_systemd_links(target, network_state, links_prefix) - - def render_systemd_links(self, target, network_state, - links_prefix=LINKS_FNAME_PREFIX): - fp_prefix = os.path.sep.join((target, links_prefix)) - for f in glob.glob(fp_prefix + "*"): - os.unlink(f) - - interfaces = network_state.get('interfaces') - for iface in interfaces.values(): - if (iface['type'] == 'physical' and 'name' in iface and - iface.get('mac_address')): - fname = fp_prefix + iface['name'] + ".link" - with open(fname, "w") as fp: - fp.write("\n".join([ - "[Match]", - "MACAddress=" + iface['mac_address'], - "", - "[Link]", - "Name=" + iface['name'], - "" - ])) -- cgit v1.2.3 From 4b0d2430e7674d5abb8fb27ac9ddb129d2bc0715 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Tue, 10 May 2016 14:16:07 -0700 Subject: Fix removal of validate_command --- cloudinit/net/network_state.py | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index 73be84e1..2530a601 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -39,26 +39,25 @@ def from_state_file(state_file): return network_state +def diff_keys(expected, actual): + missing = set(expected) + for key in actual: + missing.discard(key) + return missing + + class InvalidCommand(Exception): pass def ensure_command_keys(required_keys): - required_keys = frozenset(required_keys) - - def extract_missing(command): - missing_keys = set() - for key in required_keys: - if key not in command: - missing_keys.add(key) - return missing_keys def wrapper(func): @six.wraps(func) def decorator(self, command, *args, **kwargs): if required_keys: - missing_keys = extract_missing(command) + missing_keys = diff_keys(required_keys, command) if missing_keys: raise InvalidCommand("Command missing %s of required" " keys %s" % (missing_keys, @@ -120,10 +119,11 @@ class NetworkState(object): raise Exception('Invalid state, missing version field') required_keys = NETWORK_STATE_REQUIRED_KEYS[state['version']] - if not self.valid_command(state, required_keys): - msg = 'Invalid state, missing keys: {}'.format(required_keys) + missing_keys = diff_keys(required_keys, state) + if missing_keys: + msg = 'Invalid state, missing keys: %s'.format(missing_keys) LOG.error(msg) - raise Exception(msg) + raise ValueError(msg) # v1 - direct attr mapping, except version for key in [k for k in required_keys if k not in ['version']]: -- cgit v1.2.3 From c5eb65ed705475640fce1025c74a54052c6e9731 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Tue, 10 May 2016 15:12:44 -0700 Subject: Add some basic eni rendering tests --- cloudinit/net/__init__.py | 11 ++++--- cloudinit/net/network_state.py | 2 +- tests/unittests/test_net.py | 68 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 74 insertions(+), 7 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index e911ed0c..0202cbd8 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -107,7 +107,7 @@ class ParserError(Exception): """Raised when parser has issue parsing the interfaces file.""" -def parse_net_config_data(net_config): +def parse_net_config_data(net_config, skip_broken=True): """Parses the config, returns NetworkState object :param net_config: curtin network config dict @@ -116,20 +116,19 @@ def parse_net_config_data(net_config): if 'version' in net_config and 'config' in net_config: ns = network_state.NetworkState(version=net_config.get('version'), config=net_config.get('config')) - ns.parse_config() + ns.parse_config(skip_broken=skip_broken) state = ns.network_state - return state -def parse_net_config(path): +def parse_net_config(path, skip_broken=True): """Parses a curtin network configuration file and return network state""" ns = None net_config = util.read_conf(path) if 'network' in net_config: - ns = parse_net_config_data(net_config.get('network')) - + ns = parse_net_config_data(net_config.get('network'), + skip_broken=skip_broken) return ns diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index 2530a601..2feffa71 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -142,7 +142,7 @@ class NetworkState(object): raise RuntimeError("No handler found for" " command '%s'" % command_type) try: - handler(command) + handler(self, command) except InvalidCommand: if not skip_broken: raise diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py index 6daf9601..37b48efb 100644 --- a/tests/unittests/test_net.py +++ b/tests/unittests/test_net.py @@ -1,7 +1,9 @@ from cloudinit import util from cloudinit import net from cloudinit.net import cmdline +from cloudinit.net import eni from .helpers import TestCase +from .helpers import mock import base64 import copy @@ -9,6 +11,8 @@ import io import gzip import json import os +import shutil +import tempfile DHCP_CONTENT_1 = """ DEVICE='eth0' @@ -69,6 +73,70 @@ STATIC_EXPECTED_1 = { } +class TestEniNetRendering(TestCase): + + @mock.patch("cloudinit.net.sys_dev_path") + @mock.patch("cloudinit.net.sys_netdev_info") + @mock.patch("cloudinit.net.get_devicelist") + def test_generation(self, mock_get_devicelist, mock_sys_netdev_info, + mock_sys_dev_path): + mock_get_devicelist.return_value = ['eth1000', 'lo'] + + dev_characteristics = { + 'eth1000': { + "bridge": False, + "carrier": False, + "dormant": False, + "operstate": "down", + "address": "07-1C-C6-75-A4-BE", + } + } + + def netdev_info(name, field): + return dev_characteristics[name][field] + + mock_sys_netdev_info.side_effect = netdev_info + + tmp_dir = tempfile.mkdtemp() + self.addCleanup(shutil.rmtree, tmp_dir) + + def sys_dev_path(devname, path=""): + return tmp_dir + devname + "/" + path + + for dev in dev_characteristics: + os.makedirs(os.path.join(tmp_dir, dev)) + with open(os.path.join(tmp_dir, dev, 'operstate'), 'w') as fh: + fh.write("down") + + mock_sys_dev_path.side_effect = sys_dev_path + + network_cfg = net.generate_fallback_config() + network_state = net.parse_net_config_data(network_cfg, + skip_broken=False) + + render_dir = os.path.join(tmp_dir, "render") + os.makedirs(render_dir) + + renderer = eni.Renderer() + renderer.render_network_state(render_dir, network_state, + eni="interfaces", + links_prefix=None, + netrules=None) + + self.assertTrue(os.path.exists(os.path.join(render_dir, + 'interfaces'))) + with open(os.path.join(render_dir, 'interfaces')) as fh: + contents = fh.read() + + expected = """auto lo +iface lo inet loopback + +auto eth1000 +iface eth1000 inet dhcp +""" + self.assertEqual(expected, contents) + + class TestNetConfigParsing(TestCase): simple_cfg = { 'config': [{"type": "physical", "name": "eth0", -- cgit v1.2.3 From 26ea813d293467921ab6b1e32abd2ab8fcefa3bd Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Wed, 11 May 2016 14:18:02 -0700 Subject: Fix py26 for rhel (and older versions of python) --- cloudinit/net/cmdline.py | 26 ++++--- cloudinit/sources/DataSourceAzure.py | 2 +- cloudinit/sources/helpers/openstack.py | 8 +- cloudinit/util.py | 25 ++++++- requirements.txt | 8 +- setup.py | 1 - test-requirements.txt | 1 + tests/unittests/helpers.py | 86 +++------------------- tests/unittests/test__init__.py | 18 ++--- tests/unittests/test_cli.py | 7 +- tests/unittests/test_cs_util.py | 42 ++++------- tests/unittests/test_datasource/test_azure.py | 12 +-- .../unittests/test_datasource/test_azure_helper.py | 12 +-- tests/unittests/test_datasource/test_cloudsigma.py | 26 +++++-- tests/unittests/test_datasource/test_cloudstack.py | 11 +-- .../unittests/test_datasource/test_configdrive.py | 11 +-- tests/unittests/test_datasource/test_nocloud.py | 14 +--- tests/unittests/test_datasource/test_smartos.py | 21 ++++-- tests/unittests/test_net.py | 7 +- tests/unittests/test_reporting.py | 4 +- tests/unittests/test_rh_subscription.py | 23 ++++-- tox.ini | 36 ++++----- 22 files changed, 163 insertions(+), 238 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/cmdline.py b/cloudinit/net/cmdline.py index 958c264b..21bc35d9 100644 --- a/cloudinit/net/cmdline.py +++ b/cloudinit/net/cmdline.py @@ -20,7 +20,6 @@ import base64 import glob import gzip import io -import shlex from cloudinit.net import get_devicelist from cloudinit.net import sys_netdev_info @@ -34,13 +33,17 @@ def _load_shell_content(content, add_empty=False, empty_val=None): then add entries in to the returned dictionary for 'VAR=' variables. Set their value to empty_val.""" data = {} - for line in shlex.split(content): - key, value = line.split("=", 1) - if not value: - value = empty_val - if add_empty or value: - data[key] = value - + for line in util.shlex_split(content): + try: + key, value = line.split("=", 1) + except ValueError: + # Unsplittable line, skip it... + pass + else: + if not value: + value = empty_val + if add_empty or value: + data[key] = value return data @@ -60,6 +63,9 @@ def _klibc_to_config_entry(content, mac_addrs=None): if mac_addrs is None: mac_addrs = {} + print("Reading content") + print(content) + data = _load_shell_content(content) try: name = data['DEVICE'] @@ -185,7 +191,7 @@ def read_kernel_cmdline_config(files=None, mac_addrs=None, cmdline=None): return None if mac_addrs is None: - mac_addrs = {k: sys_netdev_info(k, 'address') - for k in get_devicelist()} + mac_addrs = dict((k, sys_netdev_info(k, 'address')) + for k in get_devicelist()) return config_from_klibc_net_cfg(files=files, mac_addrs=mac_addrs) diff --git a/cloudinit/sources/DataSourceAzure.py b/cloudinit/sources/DataSourceAzure.py index 698f4cac..66c8ced8 100644 --- a/cloudinit/sources/DataSourceAzure.py +++ b/cloudinit/sources/DataSourceAzure.py @@ -421,7 +421,7 @@ def write_files(datadir, files, dirmode=None): elem.text = DEF_PASSWD_REDACTION return ET.tostring(root) except Exception: - LOG.critical("failed to redact userpassword in {}".format(fname)) + LOG.critical("failed to redact userpassword in %s", fname) return cnt if not datadir: diff --git a/cloudinit/sources/helpers/openstack.py b/cloudinit/sources/helpers/openstack.py index 845ea971..b2acc648 100644 --- a/cloudinit/sources/helpers/openstack.py +++ b/cloudinit/sources/helpers/openstack.py @@ -534,13 +534,13 @@ def convert_net_json(network_json): config = [] for link in links: subnets = [] - cfg = {k: v for k, v in link.items() - if k in valid_keys['physical']} + cfg = dict((k, v) for k, v in link.items() + if k in valid_keys['physical']) cfg.update({'name': link['id']}) for network in [net for net in networks if net['link'] == link['id']]: - subnet = {k: v for k, v in network.items() - if k in valid_keys['subnet']} + subnet = dict((k, v) for k, v in network.items() + if k in valid_keys['subnet']) if 'dhcp' in network['type']: t = 'dhcp6' if network['type'].startswith('ipv6') else 'dhcp4' subnet.update({ diff --git a/cloudinit/util.py b/cloudinit/util.py index 0d21e11b..7562b97a 100644 --- a/cloudinit/util.py +++ b/cloudinit/util.py @@ -37,6 +37,7 @@ import pwd import random import re import shutil +import shlex import socket import stat import string @@ -81,6 +82,7 @@ CONTAINER_TESTS = (['systemd-detect-virt', '--quiet', '--container'], ['lxc-is-container']) PROC_CMDLINE = None +PY26 = sys.version_info[0:2] == (2, 6) def decode_binary(blob, encoding='utf-8'): @@ -171,7 +173,8 @@ class ProcessExecutionError(IOError): def __init__(self, stdout=None, stderr=None, exit_code=None, cmd=None, - description=None, reason=None): + description=None, reason=None, + errno=None): if not cmd: self.cmd = '-' else: @@ -202,6 +205,7 @@ class ProcessExecutionError(IOError): else: self.reason = '-' + self.errno = errno message = self.MESSAGE_TMPL % { 'description': self.description, 'cmd': self.cmd, @@ -1147,7 +1151,14 @@ def find_devs_with(criteria=None, oformat='device', options.append(path) cmd = blk_id_cmd + options # See man blkid for why 2 is added - (out, _err) = subp(cmd, rcs=[0, 2]) + try: + (out, _err) = subp(cmd, rcs=[0, 2]) + except ProcessExecutionError as e: + if e.errno == errno.ENOENT: + # blkid not found... + out = "" + else: + raise entries = [] for line in out.splitlines(): line = line.strip() @@ -1191,6 +1202,13 @@ def load_file(fname, read_cb=None, quiet=False, decode=True): return contents +def shlex_split(blob): + if PY26 and isinstance(blob, six.text_type): + # Older versions don't support unicode input + blob = blob.encode("utf8") + return shlex.split(blob) + + def get_cmdline(): if 'DEBUG_PROC_CMDLINE' in os.environ: return os.environ["DEBUG_PROC_CMDLINE"] @@ -1696,7 +1714,8 @@ def subp(args, data=None, rcs=None, env=None, capture=True, shell=False, sp = subprocess.Popen(args, **kws) (out, err) = sp.communicate(data) except OSError as e: - raise ProcessExecutionError(cmd=args, reason=e) + raise ProcessExecutionError(cmd=args, reason=e, + errno=e.errno) rc = sp.returncode if rc not in rcs: raise ProcessExecutionError(stdout=out, stderr=err, diff --git a/requirements.txt b/requirements.txt index 19c88857..cc1dc05f 100644 --- a/requirements.txt +++ b/requirements.txt @@ -11,8 +11,12 @@ PrettyTable oauthlib # This one is currently used only by the CloudSigma and SmartOS datasources. -# If these datasources are removed, this is no longer needed -pyserial +# If these datasources are removed, this is no longer needed. +# +# This will not work in py2.6 so it is only optionally installed on +# python 2.7 and later. +# +# pyserial # This is only needed for places where we need to support configs in a manner # that the built-in config parser is not sufficent (ie diff --git a/setup.py b/setup.py index f86727b2..6b4fc031 100755 --- a/setup.py +++ b/setup.py @@ -197,7 +197,6 @@ requirements = read_requires() if sys.version_info < (3,): requirements.append('cheetah') - setuptools.setup( name='cloud-init', version=get_version(), diff --git a/test-requirements.txt b/test-requirements.txt index 9b3d07c5..d9c757e6 100644 --- a/test-requirements.txt +++ b/test-requirements.txt @@ -5,3 +5,4 @@ pep8==1.5.7 pyflakes contextlib2 setuptools +unittest2 diff --git a/tests/unittests/helpers.py b/tests/unittests/helpers.py index fb9c83a7..33f89254 100644 --- a/tests/unittests/helpers.py +++ b/tests/unittests/helpers.py @@ -7,12 +7,10 @@ import shutil import tempfile import unittest +import mock import six +import unittest2 -try: - from unittest import mock -except ImportError: - import mock try: from contextlib import ExitStack except ImportError: @@ -21,6 +19,9 @@ except ImportError: from cloudinit import helpers as ch from cloudinit import util +# Used for skipping tests +SkipTest = unittest2.SkipTest + # Used for detecting different python versions PY2 = False PY26 = False @@ -44,79 +45,6 @@ else: if _PY_MINOR == 4 and _PY_MICRO < 3: FIX_HTTPRETTY = True -if PY26: - # For now add these on, taken from python 2.7 + slightly adjusted. Drop - # all this once Python 2.6 is dropped as a minimum requirement. - class TestCase(unittest.TestCase): - def setUp(self): - super(TestCase, self).setUp() - self.__all_cleanups = ExitStack() - - def tearDown(self): - self.__all_cleanups.close() - unittest.TestCase.tearDown(self) - - def addCleanup(self, function, *args, **kws): - self.__all_cleanups.callback(function, *args, **kws) - - def assertIs(self, expr1, expr2, msg=None): - if expr1 is not expr2: - standardMsg = '%r is not %r' % (expr1, expr2) - self.fail(self._formatMessage(msg, standardMsg)) - - def assertIn(self, member, container, msg=None): - if member not in container: - standardMsg = '%r not found in %r' % (member, container) - self.fail(self._formatMessage(msg, standardMsg)) - - def assertNotIn(self, member, container, msg=None): - if member in container: - standardMsg = '%r unexpectedly found in %r' - standardMsg = standardMsg % (member, container) - self.fail(self._formatMessage(msg, standardMsg)) - - def assertIsNone(self, value, msg=None): - if value is not None: - standardMsg = '%r is not None' - standardMsg = standardMsg % (value) - self.fail(self._formatMessage(msg, standardMsg)) - - def assertIsInstance(self, obj, cls, msg=None): - """Same as self.assertTrue(isinstance(obj, cls)), with a nicer - default message.""" - if not isinstance(obj, cls): - standardMsg = '%s is not an instance of %r' % (repr(obj), cls) - self.fail(self._formatMessage(msg, standardMsg)) - - def assertDictContainsSubset(self, expected, actual, msg=None): - missing = [] - mismatched = [] - for k, v in expected.items(): - if k not in actual: - missing.append(k) - elif actual[k] != v: - mismatched.append('%r, expected: %r, actual: %r' - % (k, v, actual[k])) - - if len(missing) == 0 and len(mismatched) == 0: - return - - standardMsg = '' - if missing: - standardMsg = 'Missing: %r' % ','.join(m for m in missing) - if mismatched: - if standardMsg: - standardMsg += '; ' - standardMsg += 'Mismatched values: %s' % ','.join(mismatched) - - self.fail(self._formatMessage(msg, standardMsg)) - - -else: - class TestCase(unittest.TestCase): - pass - - # Makes the old path start # with new base instead of whatever # it previously had @@ -151,6 +79,10 @@ def retarget_many_wrapper(new_base, am, old_func): return wrapper +class TestCase(unittest2.TestCase): + pass + + class ResourceUsingTestCase(TestCase): def setUp(self): super(ResourceUsingTestCase, self).setUp() diff --git a/tests/unittests/test__init__.py b/tests/unittests/test__init__.py index 153f1658..a9b35afe 100644 --- a/tests/unittests/test__init__.py +++ b/tests/unittests/test__init__.py @@ -1,16 +1,7 @@ import os import shutil import tempfile -import unittest - -try: - from unittest import mock -except ImportError: - import mock -try: - from contextlib import ExitStack -except ImportError: - from contextlib2 import ExitStack +import unittest2 from cloudinit import handlers from cloudinit import helpers @@ -18,7 +9,7 @@ from cloudinit import settings from cloudinit import url_helper from cloudinit import util -from .helpers import TestCase +from .helpers import TestCase, ExitStack, mock class FakeModule(handlers.Handler): @@ -99,9 +90,10 @@ class TestWalkerHandleHandler(TestCase): self.assertEqual(self.data['handlercount'], 0) -class TestHandlerHandlePart(unittest.TestCase): +class TestHandlerHandlePart(TestCase): def setUp(self): + super(TestHandlerHandlePart, self).setUp() self.data = "fake data" self.ctype = "fake ctype" self.filename = "fake filename" @@ -177,7 +169,7 @@ class TestHandlerHandlePart(unittest.TestCase): self.data, self.ctype, self.filename, self.payload) -class TestCmdlineUrl(unittest.TestCase): +class TestCmdlineUrl(TestCase): def test_invalid_content(self): url = "http://example.com/foo" key = "mykey" diff --git a/tests/unittests/test_cli.py b/tests/unittests/test_cli.py index ed863399..f8fe7c9b 100644 --- a/tests/unittests/test_cli.py +++ b/tests/unittests/test_cli.py @@ -4,12 +4,7 @@ import sys import six from . import helpers as test_helpers - -try: - from unittest import mock -except ImportError: - import mock - +mock = test_helpers.mock BIN_CLOUDINIT = "bin/cloud-init" diff --git a/tests/unittests/test_cs_util.py b/tests/unittests/test_cs_util.py index d7273035..8c9ac0cd 100644 --- a/tests/unittests/test_cs_util.py +++ b/tests/unittests/test_cs_util.py @@ -1,20 +1,14 @@ from __future__ import print_function -import sys -import unittest +from . import helpers as test_helpers -from cloudinit.cs_utils import Cepko +import unittest2 try: - skip = unittest.skip -except AttributeError: - # Python 2.6. Doesn't have to be high fidelity. - def skip(reason): - def decorator(func): - def wrapper(*args, **kws): - print(reason, file=sys.stderr) - return wrapper - return decorator + from cloudinit.cs_utils import Cepko + WILL_WORK = True +except ImportError: + WILL_WORK = False SERVER_CONTEXT = { @@ -32,29 +26,21 @@ SERVER_CONTEXT = { } -class CepkoMock(Cepko): - def all(self): - return SERVER_CONTEXT +if WILL_WORK: + class CepkoMock(Cepko): + def all(self): + return SERVER_CONTEXT - def get(self, key="", request_pattern=None): - return SERVER_CONTEXT['tags'] + def get(self, key="", request_pattern=None): + return SERVER_CONTEXT['tags'] # 2015-01-22 BAW: This test is completely useless because it only ever tests # the CepkoMock object. Even in its original form, I don't think it ever # touched the underlying Cepko class methods. -@skip('This test is completely useless') -class CepkoResultTests(unittest.TestCase): +class CepkoResultTests(test_helpers.TestCase): def setUp(self): - pass - # self.mocked = self.mocker.replace("cloudinit.cs_utils.Cepko", - # spec=CepkoMock, - # count=False, - # passthrough=False) - # self.mocked() - # self.mocker.result(CepkoMock()) - # self.mocker.replay() - # self.c = Cepko() + raise unittest2.SkipTest('This test is completely useless') def test_getitem(self): result = self.c.all() diff --git a/tests/unittests/test_datasource/test_azure.py b/tests/unittests/test_datasource/test_azure.py index 444e2799..aafe1bc2 100644 --- a/tests/unittests/test_datasource/test_azure.py +++ b/tests/unittests/test_datasource/test_azure.py @@ -1,16 +1,8 @@ from cloudinit import helpers from cloudinit.util import b64e, decode_binary, load_file from cloudinit.sources import DataSourceAzure -from ..helpers import TestCase, populate_dir -try: - from unittest import mock -except ImportError: - import mock -try: - from contextlib import ExitStack -except ImportError: - from contextlib2 import ExitStack +from ..helpers import TestCase, populate_dir, mock, ExitStack, PY26, SkipTest import crypt import os @@ -83,6 +75,8 @@ class TestAzureDataSource(TestCase): def setUp(self): super(TestAzureDataSource, self).setUp() + if PY26: + raise SkipTest("Does not work on python 2.6") self.tmp = tempfile.mkdtemp() self.addCleanup(shutil.rmtree, self.tmp) diff --git a/tests/unittests/test_datasource/test_azure_helper.py b/tests/unittests/test_datasource/test_azure_helper.py index 1134199b..736f4463 100644 --- a/tests/unittests/test_datasource/test_azure_helper.py +++ b/tests/unittests/test_datasource/test_azure_helper.py @@ -1,17 +1,11 @@ import os from cloudinit.sources.helpers import azure as azure_helper -from ..helpers import TestCase -try: - from unittest import mock -except ImportError: - import mock +from ..helpers import ExitStack +from ..helpers import TestCase -try: - from contextlib import ExitStack -except ImportError: - from contextlib2 import ExitStack +from ..helpers import mock GOAL_STATE_TEMPLATE = """\ diff --git a/tests/unittests/test_datasource/test_cloudsigma.py b/tests/unittests/test_datasource/test_cloudsigma.py index 772d189a..11968796 100644 --- a/tests/unittests/test_datasource/test_cloudsigma.py +++ b/tests/unittests/test_datasource/test_cloudsigma.py @@ -1,11 +1,18 @@ # coding: utf-8 + import copy -from cloudinit.cs_utils import Cepko -from cloudinit.sources import DataSourceCloudSigma +try: + # Serial does not work on py2.6 (anymore) + import pyserial + from cloudinit.cs_utils import Cepko + from cloudinit.sources import DataSourceCloudSigma + WILL_WORK = True +except ImportError: + WILL_WORK = False from .. import helpers as test_helpers - +from ..helpers import SkipTest SERVER_CONTEXT = { "cpu": 1000, @@ -29,17 +36,20 @@ SERVER_CONTEXT = { } -class CepkoMock(Cepko): - def __init__(self, mocked_context): - self.result = mocked_context +if WILL_WORK: + class CepkoMock(Cepko): + def __init__(self, mocked_context): + self.result = mocked_context - def all(self): - return self + def all(self): + return self class DataSourceCloudSigmaTest(test_helpers.TestCase): def setUp(self): super(DataSourceCloudSigmaTest, self).setUp() + if not WILL_WORK: + raise SkipTest("Datasource testing not supported") self.datasource = DataSourceCloudSigma.DataSourceCloudSigma("", "", "") self.datasource.is_running_in_cloudsigma = lambda: True self.datasource.cepko = CepkoMock(SERVER_CONTEXT) diff --git a/tests/unittests/test_datasource/test_cloudstack.py b/tests/unittests/test_datasource/test_cloudstack.py index 656d80d1..4d6b47b4 100644 --- a/tests/unittests/test_datasource/test_cloudstack.py +++ b/tests/unittests/test_datasource/test_cloudstack.py @@ -1,15 +1,6 @@ from cloudinit import helpers from cloudinit.sources.DataSourceCloudStack import DataSourceCloudStack -from ..helpers import TestCase - -try: - from unittest import mock -except ImportError: - import mock -try: - from contextlib import ExitStack -except ImportError: - from contextlib2 import ExitStack +from ..helpers import TestCase, mock, ExitStack class TestCloudStackPasswordFetching(TestCase): diff --git a/tests/unittests/test_datasource/test_configdrive.py b/tests/unittests/test_datasource/test_configdrive.py index 8beaf95e..14cc8266 100644 --- a/tests/unittests/test_datasource/test_configdrive.py +++ b/tests/unittests/test_datasource/test_configdrive.py @@ -5,22 +5,13 @@ import shutil import six import tempfile -try: - from unittest import mock -except ImportError: - import mock -try: - from contextlib import ExitStack -except ImportError: - from contextlib2 import ExitStack - from cloudinit import helpers from cloudinit import settings from cloudinit.sources import DataSourceConfigDrive as ds from cloudinit.sources.helpers import openstack from cloudinit import util -from ..helpers import TestCase +from ..helpers import TestCase, ExitStack, mock PUBKEY = u'ssh-rsa AAAAB3NzaC1....sIkJhq8wdX+4I3A4cYbYP ubuntu@server-460\n' diff --git a/tests/unittests/test_datasource/test_nocloud.py b/tests/unittests/test_datasource/test_nocloud.py index 2d5fc37c..a92dd3b3 100644 --- a/tests/unittests/test_datasource/test_nocloud.py +++ b/tests/unittests/test_datasource/test_nocloud.py @@ -1,22 +1,12 @@ from cloudinit import helpers from cloudinit.sources import DataSourceNoCloud from cloudinit import util -from ..helpers import TestCase, populate_dir +from ..helpers import TestCase, populate_dir, mock, ExitStack import os import yaml import shutil import tempfile -import unittest - -try: - from unittest import mock -except ImportError: - import mock -try: - from contextlib import ExitStack -except ImportError: - from contextlib2 import ExitStack class TestNoCloudDataSource(TestCase): @@ -139,7 +129,7 @@ class TestNoCloudDataSource(TestCase): self.assertTrue(ret) -class TestParseCommandLineData(unittest.TestCase): +class TestParseCommandLineData(TestCase): def test_parse_cmdline_data_valid(self): ds_id = "ds=nocloud" diff --git a/tests/unittests/test_datasource/test_smartos.py b/tests/unittests/test_datasource/test_smartos.py index 5c49966a..6b628276 100644 --- a/tests/unittests/test_datasource/test_smartos.py +++ b/tests/unittests/test_datasource/test_smartos.py @@ -33,19 +33,21 @@ import tempfile import uuid from binascii import crc32 -import serial +try: + # Serial does not work on py2.6 (anymore) + import serial + from cloudinit.sources import DataSourceSmartOS + WILL_WORK = True +except ImportError: + WILL_WORK = False + import six from cloudinit import helpers as c_helpers -from cloudinit.sources import DataSourceSmartOS from cloudinit.util import b64e from .. import helpers - -try: - from unittest import mock -except ImportError: - import mock +from ..helpers import mock, SkipTest MOCK_RETURNS = { 'hostname': 'test-host', @@ -79,7 +81,8 @@ def get_mock_client(mockdata): class TestSmartOSDataSource(helpers.FilesystemMockingTestCase): def setUp(self): super(TestSmartOSDataSource, self).setUp() - + if not WILL_WORK: + raise SkipTest("This test will not work") self.tmp = tempfile.mkdtemp() self.addCleanup(shutil.rmtree, self.tmp) self.legacy_user_d = tempfile.mkdtemp() @@ -445,6 +448,8 @@ class TestJoyentMetadataClient(helpers.FilesystemMockingTestCase): def setUp(self): super(TestJoyentMetadataClient, self).setUp() + if not WILL_WORK: + raise SkipTest("This test will not work") self.serial = mock.MagicMock(spec=serial.Serial) self.request_id = 0xabcdef12 self.metadata_value = 'value' diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py index 005957de..ed2c6d0f 100644 --- a/tests/unittests/test_net.py +++ b/tests/unittests/test_net.py @@ -78,8 +78,9 @@ class TestEniNetRendering(TestCase): @mock.patch("cloudinit.net.sys_dev_path") @mock.patch("cloudinit.net.sys_netdev_info") @mock.patch("cloudinit.net.get_devicelist") - def test_generation(self, mock_get_devicelist, mock_sys_netdev_info, - mock_sys_dev_path): + def test_default_generation(self, mock_get_devicelist, + mock_sys_netdev_info, + mock_sys_dev_path): mock_get_devicelist.return_value = ['eth1000', 'lo'] dev_characteristics = { @@ -138,7 +139,7 @@ iface eth1000 inet dhcp self.assertEqual(expected.lstrip(), contents.lstrip()) -class TestNetConfigParsing(TestCase): +class TestCmdlineConfigParsing(TestCase): simple_cfg = { 'config': [{"type": "physical", "name": "eth0", "mac_address": "c0:d6:9f:2c:e8:80", diff --git a/tests/unittests/test_reporting.py b/tests/unittests/test_reporting.py index 32356ef9..493bb261 100644 --- a/tests/unittests/test_reporting.py +++ b/tests/unittests/test_reporting.py @@ -7,7 +7,9 @@ from cloudinit import reporting from cloudinit.reporting import handlers from cloudinit.reporting import events -from .helpers import (mock, TestCase) +import mock + +from .helpers import TestCase def _fake_registry(): diff --git a/tests/unittests/test_rh_subscription.py b/tests/unittests/test_rh_subscription.py index 8c586ad7..13045aaf 100644 --- a/tests/unittests/test_rh_subscription.py +++ b/tests/unittests/test_rh_subscription.py @@ -1,11 +1,24 @@ +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +import logging + from cloudinit import util from cloudinit.config import cc_rh_subscription -import logging -import mock -import unittest + +from .helpers import TestCase, mock -class GoodTests(unittest.TestCase): +class GoodTests(TestCase): def setUp(self): super(GoodTests, self).setUp() self.name = "cc_rh_subscription" @@ -92,7 +105,7 @@ class GoodTests(unittest.TestCase): self.assertEqual(self.SM._sub_man_cli.call_count, 9) -class TestBadInput(unittest.TestCase): +class TestBadInput(TestCase): name = "cc_rh_subscription" cloud_init = None log = logging.getLogger("bad_tests") diff --git a/tox.ini b/tox.ini index bd7c27dd..3210b0ee 100644 --- a/tox.ini +++ b/tox.ini @@ -1,32 +1,32 @@ [tox] -envlist = py27,py3,pyflakes +envlist = py27,py26,py3,pyflakes recreate = True +usedevelop = True [testenv] commands = python -m nose {posargs:tests} deps = -r{toxinidir}/test-requirements.txt - -r{toxinidir}/requirements.txt - -[testenv:py3] -basepython = python3 + -r{toxinidir}/requirements.txt +setenv = + LC_ALL = en_US.utf-8 [testenv:pyflakes] basepython = python3 commands = {envpython} -m pyflakes {posargs:cloudinit/ tests/ tools/} - {envpython} -m pep8 {posargs:cloudinit/ tests/ tools/} + {envpython} -m pep8 {posargs:cloudinit/ tests/ tools/} -# https://github.com/gabrielfalcao/HTTPretty/issues/223 -setenv = - LC_ALL = en_US.utf-8 +[testenv:py3] +basepython = python3 +deps = -r{toxinidir}/test-requirements.txt + -r{toxinidir}/requirements.txt + pyserial + +[testenv:py27] +deps = -r{toxinidir}/test-requirements.txt + -r{toxinidir}/requirements.txt + pyserial [testenv:py26] commands = nosetests {posargs:tests} -deps = - contextlib2 - httpretty>=0.7.1 - mock - nose - pep8==1.5.7 - pyflakes -setenv = - LC_ALL = C +deps = -r{toxinidir}/test-requirements.txt + -r{toxinidir}/requirements.txt -- cgit v1.2.3 From e885f694c9951101b57ee182bebc000e398da563 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Wed, 11 May 2016 14:19:33 -0700 Subject: Remove stray prints leftover --- cloudinit/net/cmdline.py | 3 --- 1 file changed, 3 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/cmdline.py b/cloudinit/net/cmdline.py index 21bc35d9..f5712533 100644 --- a/cloudinit/net/cmdline.py +++ b/cloudinit/net/cmdline.py @@ -63,9 +63,6 @@ def _klibc_to_config_entry(content, mac_addrs=None): if mac_addrs is None: mac_addrs = {} - print("Reading content") - print(content) - data = _load_shell_content(content) try: name = data['DEVICE'] -- cgit v1.2.3 From abb3c00fadefea8056c300faf141260e124a5064 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Tue, 17 May 2016 17:29:59 -0700 Subject: Don't expose anything but 'render_network_state' This should be the visible api of a network renderer as anything more granular varies between the different render types and will not apply to those renderers. --- cloudinit/net/eni.py | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index b427012e..b1bdac24 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -243,7 +243,7 @@ def _parse_deb_config(path): class Renderer(object): """Renders network information in a /etc/network/interfaces format.""" - def render_persistent_net(self, network_state): + def _render_persistent_net(self, network_state): """Given state, emit udev rules to map mac to ifname.""" content = "" interfaces = network_state.get('interfaces') @@ -256,7 +256,7 @@ class Renderer(object): return content - def render_route(self, route, indent=""): + def _render_route(self, route, indent=""): """ When rendering routes for an iface, in some cases applying a route may result in the route command returning non-zero which produces some confusing output for users manually using ifup/ifdown[1]. To @@ -300,7 +300,7 @@ class Renderer(object): return content - def render_interfaces(self, network_state): + def _render_interfaces(self, network_state): ''' Given state, emit etc/network/interfaces content ''' content = "" @@ -352,7 +352,7 @@ class Renderer(object): content += _iface_add_attrs(iface) for route in network_state.get('routes'): - content += self.render_route(route) + content += self._render_route(route) # global replacements until v2 format content = content.replace('mac_address', 'hwaddress') @@ -366,19 +366,19 @@ class Renderer(object): fpeni = os.path.sep.join((target, eni,)) util.ensure_dir(os.path.dirname(fpeni)) with open(fpeni, 'w+') as f: - f.write(self.render_interfaces(network_state)) + f.write(self._render_interfaces(network_state)) if netrules: netrules = os.path.sep.join((target, netrules,)) util.ensure_dir(os.path.dirname(netrules)) with open(netrules, 'w+') as f: - f.write(self.render_persistent_net(network_state)) + f.write(self._render_persistent_net(network_state)) if links_prefix: - self.render_systemd_links(target, network_state, links_prefix) + self._render_systemd_links(target, network_state, links_prefix) - def render_systemd_links(self, target, network_state, - links_prefix=LINKS_FNAME_PREFIX): + def _render_systemd_links(self, target, network_state, + links_prefix=LINKS_FNAME_PREFIX): fp_prefix = os.path.sep.join((target, links_prefix)) for f in glob.glob(fp_prefix + "*"): os.unlink(f) -- cgit v1.2.3 From 880d9fc2f9c62abf19b1506595aa81e5417dea45 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Thu, 19 May 2016 14:13:07 -0700 Subject: Adjust net module to be more isolated This allows it to be used outside of cloudinit more easily in the future. --- cloudinit/net/__init__.py | 108 ++++++++++++++++++--------------- cloudinit/net/cmdline.py | 15 ++++- cloudinit/net/eni.py | 35 +++++------ cloudinit/net/network_state.py | 38 +++++++++--- cloudinit/sources/helpers/openstack.py | 4 ++ cloudinit/util.py | 9 --- tests/unittests/test_net.py | 7 ++- 7 files changed, 129 insertions(+), 87 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index 0202cbd8..07e7307e 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -17,44 +17,81 @@ # along with Curtin. If not, see . import errno +import logging import os - -from cloudinit import log as logging -from cloudinit.net import network_state -from cloudinit import util - +import six +import yaml LOG = logging.getLogger(__name__) SYS_CLASS_NET = "/sys/class/net/" LINKS_FNAME_PREFIX = "etc/systemd/network/50-cloud-init-" DEFAULT_PRIMARY_INTERFACE = 'eth0' +# NOTE(harlowja): some of these are similar to what is in cloudinit main +# source or utils tree/module but the reason that is done is so that this +# whole module can be easily extracted and placed into other +# code-bases (curtin for example). -def sys_dev_path(devname, path=""): - return SYS_CLASS_NET + devname + "/" + path +def write_file(path, content): + """Simple writing a file helper.""" + base_path = os.path.dirname(path) + if not os.path.isdir(base_path): + os.makedirs(base_path) + with open(path, "wb+") as fh: + if isinstance(content, six.text_type): + content = content.encode("utf8") + fh.write(content) -def read_sys_net(devname, path, translate=None, enoent=None, keyerror=None): +def read_file(path, decode='utf8', enoent=None): try: - contents = "" - with open(sys_dev_path(devname, path), "r") as fp: - contents = fp.read().strip() - if translate is None: - return contents - - try: - return translate.get(contents) - except KeyError: - LOG.debug("found unexpected value '%s' in '%s/%s'", contents, - devname, path) - if keyerror is not None: - return keyerror - raise + with open(path, "rb") as fh: + contents = fh.load() except OSError as e: if e.errno == errno.ENOENT and enoent is not None: return enoent raise + if decode: + return contents.decode(decode) + return contents + + +def dump_yaml(obj): + return yaml.safe_dump(obj, + line_break="\n", + indent=4, + explicit_start=True, + explicit_end=True, + default_flow_style=False) + + +def read_yaml_file(path): + val = yaml.safe_load(read_file(path)) + if not isinstance(val, dict): + gotten_type_name = type(val).__name__ + raise TypeError("Expected dict to be loaded from %s, got" + " '%s' instead" % (path, gotten_type_name)) + return val + + +def sys_dev_path(devname, path=""): + return SYS_CLASS_NET + devname + "/" + path + + +def read_sys_net(devname, path, translate=None, enoent=None, keyerror=None): + contents = read_file(sys_dev_path(devname, path), enoent=enoent) + contents = contents.strip() + if translate is None: + return contents + try: + return translate.get(contents) + except KeyError: + LOG.debug("found unexpected value '%s' in '%s/%s'", contents, + devname, path) + if keyerror is not None: + return keyerror + raise def is_up(devname): @@ -107,31 +144,6 @@ class ParserError(Exception): """Raised when parser has issue parsing the interfaces file.""" -def parse_net_config_data(net_config, skip_broken=True): - """Parses the config, returns NetworkState object - - :param net_config: curtin network config dict - """ - state = None - if 'version' in net_config and 'config' in net_config: - ns = network_state.NetworkState(version=net_config.get('version'), - config=net_config.get('config')) - ns.parse_config(skip_broken=skip_broken) - state = ns.network_state - return state - - -def parse_net_config(path, skip_broken=True): - """Parses a curtin network configuration file and - return network state""" - ns = None - net_config = util.read_conf(path) - if 'network' in net_config: - ns = parse_net_config_data(net_config.get('network'), - skip_broken=skip_broken) - return ns - - def is_disabled_cfg(cfg): if not cfg or not isinstance(cfg, dict): return False @@ -146,7 +158,7 @@ def sys_netdev_info(name, field): fname = os.path.join(SYS_CLASS_NET, name, field) if not os.path.exists(fname): raise OSError("%s: could not find sysfs entry: %s" % (name, fname)) - data = util.load_file(fname) + data = read_file(fname) if data[-1] == '\n': data = data[:-1] return data diff --git a/cloudinit/net/cmdline.py b/cloudinit/net/cmdline.py index f5712533..b85d4b0a 100644 --- a/cloudinit/net/cmdline.py +++ b/cloudinit/net/cmdline.py @@ -20,12 +20,25 @@ import base64 import glob import gzip import io +import shlex +import sys + +import six from cloudinit.net import get_devicelist from cloudinit.net import sys_netdev_info from cloudinit import util +PY26 = sys.version_info[0:2] == (2, 6) + + +def _shlex_split(blob): + if PY26 and isinstance(blob, six.text_type): + # Older versions don't support unicode input + blob = blob.encode("utf8") + return shlex.split(blob) + def _load_shell_content(content, add_empty=False, empty_val=None): """Given shell like syntax (key=value\nkey2=value2\n) in content @@ -33,7 +46,7 @@ def _load_shell_content(content, add_empty=False, empty_val=None): then add entries in to the returned dictionary for 'VAR=' variables. Set their value to empty_val.""" data = {} - for line in util.shlex_split(content): + for line in _shlex_split(content): try: key, value = line.split("=", 1) except ValueError: diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index b1bdac24..adb31c22 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -16,10 +16,11 @@ import glob import os import re +from cloudinit import net + from cloudinit.net import LINKS_FNAME_PREFIX from cloudinit.net import ParserError from cloudinit.net.udev import generate_udev_rule -from cloudinit import util NET_CONFIG_COMMANDS = [ @@ -363,16 +364,13 @@ class Renderer(object): links_prefix=LINKS_FNAME_PREFIX, netrules='etc/udev/rules.d/70-persistent-net.rules'): - fpeni = os.path.sep.join((target, eni,)) - util.ensure_dir(os.path.dirname(fpeni)) - with open(fpeni, 'w+') as f: - f.write(self._render_interfaces(network_state)) + fpeni = os.path.join(target, eni) + net.write_file(fpeni, self._render_interfaces(network_state)) if netrules: - netrules = os.path.sep.join((target, netrules,)) - util.ensure_dir(os.path.dirname(netrules)) - with open(netrules, 'w+') as f: - f.write(self._render_persistent_net(network_state)) + netrules = os.path.join(target, netrules) + net.write_file(netrules, + self._render_persistent_net(network_state)) if links_prefix: self._render_systemd_links(target, network_state, links_prefix) @@ -382,18 +380,17 @@ class Renderer(object): fp_prefix = os.path.sep.join((target, links_prefix)) for f in glob.glob(fp_prefix + "*"): os.unlink(f) - interfaces = network_state.get('interfaces') for iface in interfaces.values(): if (iface['type'] == 'physical' and 'name' in iface and iface.get('mac_address')): fname = fp_prefix + iface['name'] + ".link" - with open(fname, "w") as fp: - fp.write("\n".join([ - "[Match]", - "MACAddress=" + iface['mac_address'], - "", - "[Link]", - "Name=" + iface['name'], - "" - ])) + content = "\n".join([ + "[Match]", + "MACAddress=" + iface['mac_address'], + "", + "[Link]", + "Name=" + iface['name'], + "" + ]) + net.write_file(fname, content) diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index 2feffa71..c5aeadb5 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -16,12 +16,11 @@ # along with Curtin. If not, see . import copy +import logging import six -from cloudinit import log as logging -from cloudinit import util -from cloudinit.util import yaml_dumps as dump_config +from cloudinit import net LOG = logging.getLogger(__name__) @@ -31,9 +30,34 @@ NETWORK_STATE_REQUIRED_KEYS = { } +def parse_net_config_data(net_config, skip_broken=True): + """Parses the config, returns NetworkState object + + :param net_config: curtin network config dict + """ + state = None + if 'version' in net_config and 'config' in net_config: + ns = NetworkState(version=net_config.get('version'), + config=net_config.get('config')) + ns.parse_config(skip_broken=skip_broken) + state = ns.network_state + return state + + +def parse_net_config(path, skip_broken=True): + """Parses a curtin network configuration file and + return network state""" + ns = None + net_config = net.read_yaml_file(path) + if 'network' in net_config: + ns = parse_net_config_data(net_config.get('network'), + skip_broken=skip_broken) + return ns + + def from_state_file(state_file): network_state = None - state = util.read_conf(state_file) + state = net.read_yaml_file(state_file) network_state = NetworkState() network_state.load(state) return network_state @@ -111,7 +135,7 @@ class NetworkState(object): 'config': self.config, 'network_state': self.network_state, } - return dump_config(state) + return net.dump_yaml(state) def load(self, state): if 'version' not in state: @@ -121,7 +145,7 @@ class NetworkState(object): required_keys = NETWORK_STATE_REQUIRED_KEYS[state['version']] missing_keys = diff_keys(required_keys, state) if missing_keys: - msg = 'Invalid state, missing keys: %s'.format(missing_keys) + msg = 'Invalid state, missing keys: %s' % (missing_keys) LOG.error(msg) raise ValueError(msg) @@ -130,7 +154,7 @@ class NetworkState(object): setattr(self, key, state[key]) def dump_network_state(self): - return dump_config(self.network_state) + return net.dump_yaml(self.network_state) def parse_config(self, skip_broken=True): # rebuild network state diff --git a/cloudinit/sources/helpers/openstack.py b/cloudinit/sources/helpers/openstack.py index b2acc648..f85fd864 100644 --- a/cloudinit/sources/helpers/openstack.py +++ b/cloudinit/sources/helpers/openstack.py @@ -551,6 +551,10 @@ def convert_net_json(network_json): 'type': 'static', 'address': network.get('ip_address'), }) + if network['type'] == 'ipv6': + subnet['ipv6'] = True + else: + subnet['ipv4'] = True subnets.append(subnet) cfg.update({'subnets': subnets}) if link['type'] in ['ethernet', 'vif', 'ovs', 'phy']: diff --git a/cloudinit/util.py b/cloudinit/util.py index 7562b97a..2bec476e 100644 --- a/cloudinit/util.py +++ b/cloudinit/util.py @@ -37,7 +37,6 @@ import pwd import random import re import shutil -import shlex import socket import stat import string @@ -82,7 +81,6 @@ CONTAINER_TESTS = (['systemd-detect-virt', '--quiet', '--container'], ['lxc-is-container']) PROC_CMDLINE = None -PY26 = sys.version_info[0:2] == (2, 6) def decode_binary(blob, encoding='utf-8'): @@ -1202,13 +1200,6 @@ def load_file(fname, read_cb=None, quiet=False, decode=True): return contents -def shlex_split(blob): - if PY26 and isinstance(blob, six.text_type): - # Older versions don't support unicode input - blob = blob.encode("utf8") - return shlex.split(blob) - - def get_cmdline(): if 'DEBUG_PROC_CMDLINE' in os.environ: return os.environ["DEBUG_PROC_CMDLINE"] diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py index ed2c6d0f..75c433f6 100644 --- a/tests/unittests/test_net.py +++ b/tests/unittests/test_net.py @@ -2,6 +2,7 @@ from cloudinit import util from cloudinit import net from cloudinit.net import cmdline from cloudinit.net import eni +from cloudinit.net import network_state from .helpers import TestCase from .helpers import mock @@ -112,14 +113,14 @@ class TestEniNetRendering(TestCase): mock_sys_dev_path.side_effect = sys_dev_path network_cfg = net.generate_fallback_config() - network_state = net.parse_net_config_data(network_cfg, - skip_broken=False) + ns = network_state.parse_net_config_data(network_cfg, + skip_broken=False) render_dir = os.path.join(tmp_dir, "render") os.makedirs(render_dir) renderer = eni.Renderer() - renderer.render_network_state(render_dir, network_state, + renderer.render_network_state(render_dir, ns, eni="interfaces", links_prefix=None, netrules=None) -- cgit v1.2.3 From 2fb5af62229b8975910bf0ef63731047bd8d7e63 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Thu, 19 May 2016 15:33:15 -0700 Subject: Fix up tests and flake8 warnings --- cloudinit/net/__init__.py | 2 +- cloudinit/net/eni.py | 16 ++++----- cloudinit/sources/DataSourceConfigDrive.py | 1 - cloudinit/stages.py | 2 +- tests/unittests/helpers.py | 1 + tests/unittests/test__init__.py | 1 - tests/unittests/test_datasource/test_cloudsigma.py | 1 - .../unittests/test_datasource/test_configdrive.py | 41 ++++++++++++---------- tests/unittests/test_datasource/test_nocloud.py | 2 ++ tests/unittests/test_datasource/test_smartos.py | 2 +- tests/unittests/test_net.py | 6 ++-- tests/unittests/test_rh_subscription.py | 5 +-- tox.ini | 4 +-- 13 files changed, 41 insertions(+), 43 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index ad44911b..ba0e39ae 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -49,8 +49,8 @@ DEFAULT_PRIMARY_INTERFACE = 'eth0' # whole module can be easily extracted and placed into other # code-bases (curtin for example). + def write_file(path, content): - """Simple writing a file helper.""" base_path = os.path.dirname(path) if not os.path.isdir(base_path): os.makedirs(base_path) diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index adb31c22..18bae97a 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -258,7 +258,7 @@ class Renderer(object): return content def _render_route(self, route, indent=""): - """ When rendering routes for an iface, in some cases applying a route + """When rendering routes for an iface, in some cases applying a route may result in the route command returning non-zero which produces some confusing output for users manually using ifup/ifdown[1]. To that end, we will optionally include an '|| true' postfix to each @@ -302,7 +302,7 @@ class Renderer(object): return content def _render_interfaces(self, network_state): - ''' Given state, emit etc/network/interfaces content ''' + '''Given state, emit etc/network/interfaces content''' content = "" interfaces = network_state.get('interfaces') @@ -336,8 +336,8 @@ class Renderer(object): iface['control'] = subnet.get('control', 'auto') if iface['mode'].endswith('6'): iface['inet'] += '6' - elif iface['mode'] == 'static' \ - and ":" in subnet['address']: + elif (iface['mode'] == 'static' + and ":" in subnet['address']): iface['inet'] += '6' if iface['mode'].startswith('dhcp'): iface['mode'] = 'dhcp' @@ -359,10 +359,10 @@ class Renderer(object): content = content.replace('mac_address', 'hwaddress') return content - def render_network_state(self, - target, network_state, eni="etc/network/interfaces", - links_prefix=LINKS_FNAME_PREFIX, - netrules='etc/udev/rules.d/70-persistent-net.rules'): + def render_network_state( + self, target, network_state, + eni="etc/network/interfaces", links_prefix=LINKS_FNAME_PREFIX, + netrules='etc/udev/rules.d/70-persistent-net.rules'): fpeni = os.path.join(target, eni) net.write_file(fpeni, self._render_interfaces(network_state)) diff --git a/cloudinit/sources/DataSourceConfigDrive.py b/cloudinit/sources/DataSourceConfigDrive.py index 70373b43..4478c4e2 100644 --- a/cloudinit/sources/DataSourceConfigDrive.py +++ b/cloudinit/sources/DataSourceConfigDrive.py @@ -18,7 +18,6 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see . -import copy import os from cloudinit import log as logging diff --git a/cloudinit/stages.py b/cloudinit/stages.py index 5dd31539..b837009a 100644 --- a/cloudinit/stages.py +++ b/cloudinit/stages.py @@ -44,8 +44,8 @@ from cloudinit import helpers from cloudinit import importer from cloudinit import log as logging from cloudinit import net -from cloudinit.reporting import events from cloudinit.net import cmdline +from cloudinit.reporting import events from cloudinit import sources from cloudinit import type_utils from cloudinit import util diff --git a/tests/unittests/helpers.py b/tests/unittests/helpers.py index 7b4d44e8..8d46a8bf 100644 --- a/tests/unittests/helpers.py +++ b/tests/unittests/helpers.py @@ -45,6 +45,7 @@ else: if _PY_MINOR == 4 and _PY_MICRO < 3: FIX_HTTPRETTY = True + # Makes the old path start # with new base instead of whatever # it previously had diff --git a/tests/unittests/test__init__.py b/tests/unittests/test__init__.py index a9b35afe..0154784a 100644 --- a/tests/unittests/test__init__.py +++ b/tests/unittests/test__init__.py @@ -1,7 +1,6 @@ import os import shutil import tempfile -import unittest2 from cloudinit import handlers from cloudinit import helpers diff --git a/tests/unittests/test_datasource/test_cloudsigma.py b/tests/unittests/test_datasource/test_cloudsigma.py index 7950fc52..2a42ce0c 100644 --- a/tests/unittests/test_datasource/test_cloudsigma.py +++ b/tests/unittests/test_datasource/test_cloudsigma.py @@ -6,7 +6,6 @@ from cloudinit.cs_utils import Cepko from cloudinit.sources import DataSourceCloudSigma from .. import helpers as test_helpers -from ..helpers import SkipTest SERVER_CONTEXT = { "cpu": 1000, diff --git a/tests/unittests/test_datasource/test_configdrive.py b/tests/unittests/test_datasource/test_configdrive.py index 1db50798..5395e544 100644 --- a/tests/unittests/test_datasource/test_configdrive.py +++ b/tests/unittests/test_datasource/test_configdrive.py @@ -368,30 +368,32 @@ class TestNetJson(TestCase): self.assertEqual(myds.network_config, network_config) def test_network_config_conversions(self): - """Tests a bunch of input network json and checks the expected conversions.""" + """Tests a bunch of input network json and checks the + expected conversions.""" in_datas = [ NETWORK_DATA, { 'services': [{'type': 'dns', 'address': '172.19.0.12'}], - 'networks': [ - {'network_id': 'dacd568d-5be6-4786-91fe-750c374b78b4', - 'type': 'ipv4', 'netmask': '255.255.252.0', - 'link': 'tap1a81968a-79', - 'routes': [ - { - 'netmask': '0.0.0.0', - 'network': '0.0.0.0', - 'gateway': '172.19.3.254' - }, - ], - 'ip_address': '172.19.1.34', - 'id': 'network0', + 'networks': [{ + 'network_id': 'dacd568d-5be6-4786-91fe-750c374b78b4', + 'type': 'ipv4', + 'netmask': '255.255.252.0', + 'link': 'tap1a81968a-79', + 'routes': [{ + 'netmask': '0.0.0.0', + 'network': '0.0.0.0', + 'gateway': '172.19.3.254', + }], + 'ip_address': '172.19.1.34', + 'id': 'network0', + }], + 'links': [{ + 'type': 'bridge', + 'vif_id': '1a81968a-797a-400f-8a80-567f997eb93f', + 'ethernet_mac_address': 'fa:16:3e:ed:9a:59', + 'id': 'tap1a81968a-79', + 'mtu': None, }], - 'links': [ - {'type': 'bridge', - 'vif_id': '1a81968a-797a-400f-8a80-567f997eb93f', - 'ethernet_mac_address': 'fa:16:3e:ed:9a:59', - 'id': 'tap1a81968a-79', 'mtu': None}] }, ] out_datas = [ @@ -440,6 +442,7 @@ class TestNetJson(TestCase): 'address': '172.19.1.34', 'netmask': '255.255.252.0', 'type': 'static', + 'ipv4': True, 'routes': [{ 'gateway': '172.19.3.254', 'netmask': '0.0.0.0', diff --git a/tests/unittests/test_datasource/test_nocloud.py b/tests/unittests/test_datasource/test_nocloud.py index 077603b4..b0fa1130 100644 --- a/tests/unittests/test_datasource/test_nocloud.py +++ b/tests/unittests/test_datasource/test_nocloud.py @@ -7,6 +7,8 @@ import os import shutil import tempfile +import yaml + class TestNoCloudDataSource(TestCase): diff --git a/tests/unittests/test_datasource/test_smartos.py b/tests/unittests/test_datasource/test_smartos.py index 2f159ac4..28f56039 100644 --- a/tests/unittests/test_datasource/test_smartos.py +++ b/tests/unittests/test_datasource/test_smartos.py @@ -42,7 +42,7 @@ from cloudinit import helpers as c_helpers from cloudinit.util import b64e from .. import helpers -from ..helpers import mock, SkipTest +from ..helpers import mock MOCK_RETURNS = { 'hostname': 'test-host', diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py index faf0f0fb..7998111a 100644 --- a/tests/unittests/test_net.py +++ b/tests/unittests/test_net.py @@ -1,13 +1,11 @@ -from cloudinit import net -from cloudinit import util - from cloudinit import net from cloudinit.net import cmdline from cloudinit.net import eni from cloudinit.net import network_state +from cloudinit import util -from .helpers import TestCase from .helpers import mock +from .helpers import TestCase import base64 import copy diff --git a/tests/unittests/test_rh_subscription.py b/tests/unittests/test_rh_subscription.py index e4dcc58b..891dbe77 100644 --- a/tests/unittests/test_rh_subscription.py +++ b/tests/unittests/test_rh_subscription.py @@ -10,13 +10,10 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see . - import logging -import mock -import unittest - from cloudinit.config import cc_rh_subscription +from cloudinit import util from .helpers import TestCase, mock diff --git a/tox.ini b/tox.ini index b92ebac1..7802a291 100644 --- a/tox.ini +++ b/tox.ini @@ -1,11 +1,11 @@ [tox] -envlist = py27,py3,flake8 +envlist = py26,py27,py3,flake8 recreate = True usedevelop = True [testenv] -commands = python -m nose {posargs:tests} +commands = nosetests {posargs:tests} deps = -r{toxinidir}/test-requirements.txt -r{toxinidir}/requirements.txt setenv = -- cgit v1.2.3 From ef47b4f4c14ffe1337508f85f365b338a048a5a1 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Tue, 24 May 2016 12:50:31 -0700 Subject: Fix load -> read --- cloudinit/net/__init__.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index ba0e39ae..776af0d3 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -63,7 +63,7 @@ def write_file(path, content): def read_file(path, decode='utf8', enoent=None): try: with open(path, "rb") as fh: - contents = fh.load() + contents = fh.read() except OSError as e: if e.errno == errno.ENOENT and enoent is not None: return enoent -- cgit v1.2.3 From 85a53d66ad0241b2d6453d902487bb2edc1512b8 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Tue, 24 May 2016 13:48:50 -0700 Subject: Fix up some of the net usage and restore imports and add a mini compat module --- cloudinit/net/__init__.py | 5 +++-- cloudinit/net/cmdline.py | 15 +++++-------- cloudinit/net/compat.py | 51 ++++++++++++++++++++++++++++++++++++++++++ cloudinit/net/eni.py | 15 ++++++------- cloudinit/net/network_state.py | 23 ++++++++++--------- 5 files changed, 79 insertions(+), 30 deletions(-) create mode 100644 cloudinit/net/compat.py (limited to 'cloudinit/net') diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index 776af0d3..f8df58f0 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -20,7 +20,8 @@ import errno import logging import os -import six +from .import compat + import yaml LOG = logging.getLogger(__name__) @@ -55,7 +56,7 @@ def write_file(path, content): if not os.path.isdir(base_path): os.makedirs(base_path) with open(path, "wb+") as fh: - if isinstance(content, six.text_type): + if isinstance(content, compat.text_type): content = content.encode("utf8") fh.write(content) diff --git a/cloudinit/net/cmdline.py b/cloudinit/net/cmdline.py index b85d4b0a..41cba893 100644 --- a/cloudinit/net/cmdline.py +++ b/cloudinit/net/cmdline.py @@ -21,20 +21,17 @@ import glob import gzip import io import shlex -import sys -import six - -from cloudinit.net import get_devicelist -from cloudinit.net import sys_netdev_info +from . import compat +from . import get_devicelist +from . import read_file +from . import sys_netdev_info from cloudinit import util -PY26 = sys.version_info[0:2] == (2, 6) - def _shlex_split(blob): - if PY26 and isinstance(blob, six.text_type): + if compat.PY26 and isinstance(blob, compat.text_type): # Older versions don't support unicode input blob = blob.encode("utf8") return shlex.split(blob) @@ -143,7 +140,7 @@ def config_from_klibc_net_cfg(files=None, mac_addrs=None): entries = [] names = {} for cfg_file in files: - name, entry = _klibc_to_config_entry(util.load_file(cfg_file), + name, entry = _klibc_to_config_entry(read_file(cfg_file), mac_addrs=mac_addrs) if name in names: raise ValueError( diff --git a/cloudinit/net/compat.py b/cloudinit/net/compat.py new file mode 100644 index 00000000..8bf92ef5 --- /dev/null +++ b/cloudinit/net/compat.py @@ -0,0 +1,51 @@ +# Curtin is free software: you can redistribute it and/or modify it under +# the terms of the GNU Affero General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# Curtin is distributed in the hope that it will be useful, but WITHOUT ANY +# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +# more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with Curtin. If not, see . + +# Mini six like module (so that this code can be more easily extracted). + +import sys + +PY26 = sys.version_info[0:2] == (2, 6) +PY27 = sys.version_info[0:2] == (2, 7) +PY2 = PY26 or PY27 +PY3 = sys.version_info[0:2] >= (3, 0) + +if PY3: + text_type = str + binary_type = bytes + string_types = (text_type, text_type) + import io + StringIO = io.StringIO +else: + text_type = unicode + binary_type = bytes + string_types = (binary_type, text_type) + from StringIO import StringIO # noqa + + +# Taken from six (remove when we can actually directly use six) + +def add_metaclass(metaclass): + """Class decorator for creating a class with a metaclass.""" + def wrapper(cls): + orig_vars = cls.__dict__.copy() + slots = orig_vars.get('__slots__') + if slots is not None: + if isinstance(slots, str): + slots = [slots] + for slots_var in slots: + orig_vars.pop(slots_var) + orig_vars.pop('__dict__', None) + orig_vars.pop('__weakref__', None) + return metaclass(cls.__name__, cls.__bases__, orig_vars) + return wrapper diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index 18bae97a..f82c7f54 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -16,11 +16,11 @@ import glob import os import re -from cloudinit import net +from . import LINKS_FNAME_PREFIX +from . import ParserError +from . import write_file -from cloudinit.net import LINKS_FNAME_PREFIX -from cloudinit.net import ParserError -from cloudinit.net.udev import generate_udev_rule +from .udev import generate_udev_rule NET_CONFIG_COMMANDS = [ @@ -365,12 +365,11 @@ class Renderer(object): netrules='etc/udev/rules.d/70-persistent-net.rules'): fpeni = os.path.join(target, eni) - net.write_file(fpeni, self._render_interfaces(network_state)) + write_file(fpeni, self._render_interfaces(network_state)) if netrules: netrules = os.path.join(target, netrules) - net.write_file(netrules, - self._render_persistent_net(network_state)) + write_file(netrules, self._render_persistent_net(network_state)) if links_prefix: self._render_systemd_links(target, network_state, links_prefix) @@ -393,4 +392,4 @@ class Renderer(object): "Name=" + iface['name'], "" ]) - net.write_file(fname, content) + write_file(fname, content) diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index c5aeadb5..32c48229 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -16,11 +16,12 @@ # along with Curtin. If not, see . import copy +import functools import logging -import six - -from cloudinit import net +from . import compat +from . import dump_yaml +from . import read_yaml_file LOG = logging.getLogger(__name__) @@ -48,7 +49,7 @@ def parse_net_config(path, skip_broken=True): """Parses a curtin network configuration file and return network state""" ns = None - net_config = net.read_yaml_file(path) + net_config = read_yaml_file(path) if 'network' in net_config: ns = parse_net_config_data(net_config.get('network'), skip_broken=skip_broken) @@ -57,7 +58,7 @@ def parse_net_config(path, skip_broken=True): def from_state_file(state_file): network_state = None - state = net.read_yaml_file(state_file) + state = read_yaml_file(state_file) network_state = NetworkState() network_state.load(state) return network_state @@ -78,7 +79,7 @@ def ensure_command_keys(required_keys): def wrapper(func): - @six.wraps(func) + @functools.wraps(func) def decorator(self, command, *args, **kwargs): if required_keys: missing_keys = diff_keys(required_keys, command) @@ -102,8 +103,8 @@ class CommandHandlerMeta(type): """ def __new__(cls, name, parents, dct): command_handlers = {} - for attr_name, attr in six.iteritems(dct): - if six.callable(attr) and attr_name.startswith('handle_'): + for attr_name, attr in dct.items(): + if callable(attr) and attr_name.startswith('handle_'): handles_what = attr_name[len('handle_'):] if handles_what: command_handlers[handles_what] = attr @@ -112,7 +113,7 @@ class CommandHandlerMeta(type): parents, dct) -@six.add_metaclass(CommandHandlerMeta) +@compat.add_metaclass(CommandHandlerMeta) class NetworkState(object): initial_network_state = { @@ -135,7 +136,7 @@ class NetworkState(object): 'config': self.config, 'network_state': self.network_state, } - return net.dump_yaml(state) + return dump_yaml(state) def load(self, state): if 'version' not in state: @@ -154,7 +155,7 @@ class NetworkState(object): setattr(self, key, state[key]) def dump_network_state(self): - return net.dump_yaml(self.network_state) + return dump_yaml(self.network_state) def parse_config(self, skip_broken=True): # rebuild network state -- cgit v1.2.3 From 8a8d7eed2ed5696d58a825ec7301d8424c23ce5e Mon Sep 17 00:00:00 2001 From: Scott Moser Date: Fri, 3 Jun 2016 14:23:34 -0400 Subject: avoid rendering 'lo' twice by not writing it in network config. --- cloudinit/net/__init__.py | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'cloudinit/net') diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index f47053b2..c72b6ff8 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -788,6 +788,10 @@ def _ifaces_to_net_config_data(ifaces): for name, data in ifaces.items(): # devname is 'eth0' for name='eth0:1' devname = name.partition(":")[0] + if devname == "lo": + # currently provding 'lo' in network config results in duplicate + # entries. in rendered interfaces file. so skip it. + continue if devname not in devs: devs[devname] = {'type': 'physical', 'name': devname, 'subnets': []} -- cgit v1.2.3 From f495947a701d5629b6dbfd2ff9e01dad7bd5166b Mon Sep 17 00:00:00 2001 From: Scott Moser Date: Fri, 3 Jun 2016 14:58:51 -0400 Subject: fix issue with routes on subnets not getting rendered --- cloudinit/net/__init__.py | 2 ++ .../unittests/test_datasource/test_configdrive.py | 41 +++++++++++++++++++++- 2 files changed, 42 insertions(+), 1 deletion(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index c72b6ff8..49e9d5c2 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -574,6 +574,8 @@ def render_interfaces(network_state): content += iface_start_entry(iface, index) content += iface_add_subnet(iface, subnet) content += iface_add_attrs(iface) + for route in subnet.get('routes', []): + content += render_route(route, indent=" ") else: # ifenslave docs say to auto the slave devices if 'bond-master' in iface: diff --git a/tests/unittests/test_datasource/test_configdrive.py b/tests/unittests/test_datasource/test_configdrive.py index 1364b39d..83d75f9c 100644 --- a/tests/unittests/test_datasource/test_configdrive.py +++ b/tests/unittests/test_datasource/test_configdrive.py @@ -15,6 +15,7 @@ except ImportError: from contextlib2 import ExitStack from cloudinit import helpers +from cloudinit import net from cloudinit import settings from cloudinit.sources import DataSourceConfigDrive as ds from cloudinit.sources.helpers import openstack @@ -88,9 +89,33 @@ NETWORK_DATA = { ] } +NETWORK_DATA_2 = { + "services": [ + {"type": "dns", "address": "1.1.1.191"}, + {"type": "dns", "address": "1.1.1.4"}], + "networks": [ + {"network_id": "d94bbe94-7abc-48d4-9c82-4628ea26164a", "type": "ipv4", + "netmask": "255.255.255.248", "link": "eth0", + "routes": [{"netmask": "0.0.0.0", "network": "0.0.0.0", + "gateway": "2.2.2.9"}], + "ip_address": "2.2.2.10", "id": "network0-ipv4"}, + {"network_id": "ca447c83-6409-499b-aaef-6ad1ae995348", "type": "ipv4", + "netmask": "255.255.255.224", "link": "eth1", + "routes": [], "ip_address": "3.3.3.24", "id": "network1-ipv4"}], + "links": [ + {"ethernet_mac_address": "fa:16:3e:dd:50:9a", "mtu": 1500, + "type": "vif", "id": "eth0", "vif_id": "vif-foo1"}, + {"ethernet_mac_address": "fa:16:3e:a8:14:69", "mtu": 1500, + "type": "vif", "id": "eth1", "vif_id": "vif-foo2"}] +} + + KNOWN_MACS = { 'fa:16:3e:69:b0:58': 'enp0s1', - 'fa:16:3e:d4:57:ad': 'enp0s2'} + 'fa:16:3e:d4:57:ad': 'enp0s2', + 'fa:16:3e:dd:50:9a': 'foo1', + 'fa:16:3e:a8:14:69': 'foo2', +} CFG_DRIVE_FILES_V2 = { 'ec2/2009-04-04/meta-data.json': json.dumps(EC2_META), @@ -402,6 +427,20 @@ class TestConvertNetworkData(TestCase): self.assertRaises(ValueError, ds.convert_network_data, NETWORK_DATA, known_macs=macs) + def test_conversion_with_route(self): + ncfg = ds.convert_network_data(NETWORK_DATA_2, known_macs=KNOWN_MACS) + # not the best test, but see that we get a route in the + # network config and that it gets rendered to an ENI file + routes = [] + for n in ncfg['config']: + for s in n.get('subnets', []): + routes.extend(s.get('routes', [])) + self.assertIn( + {'network': '0.0.0.0', 'netmask': '0.0.0.0', 'gateway': '2.2.2.9'}, + routes) + eni = net.render_interfaces(net.parse_net_config_data(ncfg)) + self.assertIn("route add default gw 2.2.2.9", eni) + def cfg_ds_from_dir(seed_d): found = ds.read_config_drive(seed_d) -- cgit v1.2.3 From 600ce494084368c511848c00fff7220255b14e6b Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Mon, 6 Jun 2016 18:45:55 -0700 Subject: Get cmdline working again --- cloudinit/net/cmdline.py | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/cmdline.py b/cloudinit/net/cmdline.py index 39523be2..187f7026 100644 --- a/cloudinit/net/cmdline.py +++ b/cloudinit/net/cmdline.py @@ -24,7 +24,6 @@ import shlex from . import compat from . import get_devicelist -from . import read_file from . import sys_netdev_info from cloudinit import util @@ -136,7 +135,7 @@ def config_from_klibc_net_cfg(files=None, mac_addrs=None): entries = [] names = {} for cfg_file in files: - name, entry = _klibc_to_config_entry(read_file(cfg_file), + name, entry = _klibc_to_config_entry(util.load_file(cfg_file), mac_addrs=mac_addrs) if name in names: raise ValueError( -- cgit v1.2.3 From 6d0e6068f2692fd34c3c5cc93af7ec8ef5be4711 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Tue, 7 Jun 2016 10:59:27 -0700 Subject: For now just remove compat.py module Let's reduce the size of this change for now. --- cloudinit/net/cmdline.py | 10 ++++++--- cloudinit/net/compat.py | 51 ------------------------------------------ cloudinit/net/network_state.py | 4 ++-- 3 files changed, 9 insertions(+), 56 deletions(-) delete mode 100644 cloudinit/net/compat.py (limited to 'cloudinit/net') diff --git a/cloudinit/net/cmdline.py b/cloudinit/net/cmdline.py index 187f7026..822a020b 100644 --- a/cloudinit/net/cmdline.py +++ b/cloudinit/net/cmdline.py @@ -21,16 +21,20 @@ import glob import gzip import io import shlex +import sys + +import six -from . import compat from . import get_devicelist from . import sys_netdev_info from cloudinit import util +PY26 = sys.version_info[0:2] == (2, 6) + def _shlex_split(blob): - if compat.PY26 and isinstance(blob, compat.text_type): + if PY26 and isinstance(blob, six.text_type): # Older versions don't support unicode input blob = blob.encode("utf8") return shlex.split(blob) @@ -42,7 +46,7 @@ def _load_shell_content(content, add_empty=False, empty_val=None): then add entries in to the returned dictionary for 'VAR=' variables. Set their value to empty_val.""" data = {} - for line in shlex.split(content): + for line in _shlex_split(content): key, value = line.split("=", 1) if not value: value = empty_val diff --git a/cloudinit/net/compat.py b/cloudinit/net/compat.py deleted file mode 100644 index 8bf92ef5..00000000 --- a/cloudinit/net/compat.py +++ /dev/null @@ -1,51 +0,0 @@ -# Curtin is free software: you can redistribute it and/or modify it under -# the terms of the GNU Affero General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# Curtin is distributed in the hope that it will be useful, but WITHOUT ANY -# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS -# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for -# more details. -# -# You should have received a copy of the GNU Affero General Public License -# along with Curtin. If not, see . - -# Mini six like module (so that this code can be more easily extracted). - -import sys - -PY26 = sys.version_info[0:2] == (2, 6) -PY27 = sys.version_info[0:2] == (2, 7) -PY2 = PY26 or PY27 -PY3 = sys.version_info[0:2] >= (3, 0) - -if PY3: - text_type = str - binary_type = bytes - string_types = (text_type, text_type) - import io - StringIO = io.StringIO -else: - text_type = unicode - binary_type = bytes - string_types = (binary_type, text_type) - from StringIO import StringIO # noqa - - -# Taken from six (remove when we can actually directly use six) - -def add_metaclass(metaclass): - """Class decorator for creating a class with a metaclass.""" - def wrapper(cls): - orig_vars = cls.__dict__.copy() - slots = orig_vars.get('__slots__') - if slots is not None: - if isinstance(slots, str): - slots = [slots] - for slots_var in slots: - orig_vars.pop(slots_var) - orig_vars.pop('__dict__', None) - orig_vars.pop('__weakref__', None) - return metaclass(cls.__name__, cls.__bases__, orig_vars) - return wrapper diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index 1e82e75d..a8be5e26 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -19,7 +19,7 @@ import copy import functools import logging -from . import compat +import six from cloudinit import util @@ -113,7 +113,7 @@ class CommandHandlerMeta(type): parents, dct) -@compat.add_metaclass(CommandHandlerMeta) +@six.add_metaclass(CommandHandlerMeta) class NetworkState(object): initial_network_state = { -- cgit v1.2.3 From f47d811af4f2ae0977db076b3eedb27634da2132 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Fri, 10 Jun 2016 14:26:30 -0700 Subject: Add a sysconfig renderer --- cloudinit/net/sysconfig.py | 476 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 476 insertions(+) create mode 100644 cloudinit/net/sysconfig.py (limited to 'cloudinit/net') diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py new file mode 100644 index 00000000..ff7e467f --- /dev/null +++ b/cloudinit/net/sysconfig.py @@ -0,0 +1,476 @@ +# vi: ts=4 expandtab +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +import os +import re + +import six + +from cloudinit.distros.parsers import resolv_conf +from cloudinit import util + +from . import network_state +from .udev import generate_udev_rule + + +def _filter_by_type(match_type): + return lambda iface: match_type == iface['type'] + + +def _filter_by_name(match_name): + return lambda iface: match_name == iface['name'] + + +_filter_by_physical = _filter_by_type('physical') + + +def _is_default_route(route): + if route['network'] == '::' and route['netmask'] == 0: + return True + if route['network'] == '0.0.0.0' and route['netmask'] == '0.0.0.0': + return True + return False + + +def _quote_value(value): + if re.search(r"\s", value): + # This doesn't handle complex cases... + if value.startswith('"') and value.endswith('"'): + return value + else: + return '"%s"' % value + else: + return value + + +class NetworkStateHelper(object): + def __init__(self, network_state): + self._network_state = network_state.copy() + + @property + def dns_nameservers(self): + return self._network_state['dns']['nameservers'] + + @property + def dns_searchdomains(self): + return self._network_state['dns']['search'] + + def iter_interfaces(self, filter_func=None): + ifaces = self._network_state.get('interfaces') + if ifaces: + for iface in ifaces.values(): + if filter_func is None: + yield iface + else: + if filter_func(iface): + yield iface + + +class ConfigMap(object): + """Sysconfig like dictionary object.""" + + default_header = ('# Created by cloud-init on instance' + ' boot automatically, do not edit.\n#') + + # Why does redhat prefer yes/no to true/false?? + _bool_map = { + True: 'yes', + False: 'no', + } + + def __init__(self): + self._conf = {} + + def __setitem__(self, key, value): + self._conf[key] = value + + def drop(self, key): + self._conf.pop(key, None) + + def __len__(self): + return len(self._conf) + + def to_string(self): + buf = compat.StringIO() + buf.write(self.default_header) + if self._conf: + buf.write("\n") + for key in sorted(self._conf.keys()): + value = self._conf[key] + if isinstance(value, bool): + value = self._bool_map[value] + if not isinstance(value, compat.string_types): + value = str(value) + buf.write("%s=%s\n" % (key, _quote_value(value))) + return buf.getvalue() + + +class Route(ConfigMap): + """Represents a route configuration.""" + + route_fn_tpl = '%(base)s/network-scripts/route-%(name)s' + + def __init__(self, route_name, base_sysconf_dir): + super(Route, self).__init__() + self.last_idx = 1 + self.has_set_default = False + self._route_name = route_name + self._base_sysconf_dir = base_sysconf_dir + + def copy(self): + r = Route(self._route_name, self._base_sysconf_dir) + r._conf = self._conf.copy() + r.last_idx = self.last_idx + r.has_set_default = self.has_set_default + return r + + @property + def path(self): + return self.route_fn_tpl % ({'base': self._base_sysconf_dir, + 'name': self._route_name}) + + +class NetInterface(ConfigMap): + """Represents a sysconfig/networking-script (and its config + children).""" + + iface_fn_tpl = '%(base)s/network-scripts/ifcfg-%(name)s' + + iface_types = { + 'ethernet': 'Ethernet', + 'bond': 'Bond', + 'bridge': 'Bridge', + } + + def __init__(self, iface_name, base_sysconf_dir, kind='ethernet'): + super(NetInterface, self).__init__() + self.children = [] + self.routes = Route(iface_name, base_sysconf_dir) + self._kind = kind + self._iface_name = iface_name + self._conf['DEVICE'] = iface_name + self._conf['TYPE'] = self.iface_types[kind] + self._base_sysconf_dir = base_sysconf_dir + + @property + def name(self): + return self._iface_name + + @name.setter + def name(self, iface_name): + self._iface_name = iface_name + self._conf['DEVICE'] = iface_name + + @property + def kind(self): + return self._kind + + @kind.setter + def kind(self, kind): + self._kind = kind + self._conf['TYPE'] = self.iface_types[kind] + + @property + def path(self): + return self.iface_fn_tpl % ({'base': self._base_sysconf_dir, + 'name': self.name}) + + def copy(self, copy_children=False, copy_routes=False): + c = NetInterface(self.name, self._base_sysconf_dir, kind=self._kind) + c._conf = self._conf.copy() + if copy_children: + c.children = list(self.children) + if copy_routes: + c.routes = self.routes.copy() + return c + + +class Renderer(object): + """Renders network information in a /etc/sysconfig format.""" + + # See: https://access.redhat.com/documentation/en-US/\ + # Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/\ + # s1-networkscripts-interfaces.html (or other docs for + # details about this) + + iface_defaults = tuple([ + ('ONBOOT', True), + ('USERCTL', False), + ('NM_CONTROLLED', False), + ('BOOTPROTO', 'none'), + ]) + + # If these keys exist, then there values will be used to form + # a BONDING_OPTS grouping; otherwise no grouping will be set. + bond_tpl_opts = tuple([ + ('bond_mode', "mode=%s"), + ('bond_xmit_hash_policy', "xmit_hash_policy=%s"), + ('bond_miimon', "miimon=%s"), + ]) + + bridge_opts_keys = tuple([ + ('bridge_stp', 'STP'), + ('bridge_ageing', 'AGEING'), + ('bridge_bridgeprio', 'PRIO'), + ]) + + @staticmethod + def _render_persistent_net(network_state): + """Given state, emit udev rules to map mac to ifname.""" + # TODO(harlowja): this seems shared between eni renderer and + # this, so move it to a shared location. + content = compat.StringIO() + for iface in network_state.iter_interfaces(_filter_by_physical): + # for physical interfaces write out a persist net udev rule + if 'name' in iface and iface.get('mac_address'): + content.write(generate_udev_rule(iface['name'], + iface['mac_address'])) + return content.getvalue() + + @classmethod + def _render_iface_shared(cls, iface, iface_cfg): + for k, v in cls.iface_defaults: + iface_cfg[k] = v + for (old_key, new_key) in [('mac_address', 'HWADDR'), ('mtu', 'MTU')]: + old_value = iface.get(old_key) + if old_value is not None: + iface_cfg[new_key] = old_value + + @classmethod + def _render_subnet(cls, iface_cfg, route_cfg, subnet): + subnet_type = subnet.get('type') + if subnet_type == 'dhcp6': + iface_cfg['DHCPV6C'] = True + iface_cfg['IPV6INIT'] = True + iface_cfg['BOOTPROTO'] = 'dhcp' + elif subnet_type == 'dhcp4': + iface_cfg['BOOTPROTO'] = 'dhcp' + elif subnet_type == 'static': + iface_cfg['BOOTPROTO'] = 'static' + if subnet.get('ipv6'): + iface_cfg['IPV6ADDR'] = subnet['address'] + iface_cfg['IPV6INIT'] = True + else: + iface_cfg['IPADDR'] = subnet['address'] + else: + raise ValueError("Unknown subnet type '%s' found" + " for interface '%s'" % (subnet_type, + iface_cfg.name)) + if 'netmask' in subnet: + iface_cfg['NETMASK'] = subnet['netmask'] + for route in subnet.get('routes', []): + if _is_default_route(route): + if route_cfg.has_set_default: + raise ValueError("Duplicate declaration of default" + " route found for interface '%s'" + % (iface_cfg.name)) + # NOTE(harlowja): ipv6 and ipv4 default gateways + gw_key = 'GATEWAY0' + nm_key = 'NETMASK0' + addr_key = 'ADDRESS0' + # The owning interface provides the default route. + # + # TODO(harlowja): add validation that no other iface has + # also provided the default route? + iface_cfg['DEFROUTE'] = True + if 'gateway' in route: + iface_cfg['GATEWAY'] = route['gateway'] + route_cfg.has_set_default = True + else: + gw_key = 'GATEWAY%s' % route_cfg.last_idx + nm_key = 'NETMASK%s' % route_cfg.last_idx + addr_key = 'ADDRESS%s' % route_cfg.last_idx + route_cfg.last_idx += 1 + for (old_key, new_key) in [('gateway', gw_key), + ('netmask', nm_key), + ('network', addr_key)]: + if old_key in route: + route_cfg[new_key] = route[old_key] + + @classmethod + def _render_bonding_opts(cls, iface_cfg, iface): + bond_opts = [] + for (bond_key, value_tpl) in cls.bond_tpl_opts: + # Seems like either dash or underscore is possible? + bond_keys = [bond_key, bond_key.replace("_", "-")] + for bond_key in bond_keys: + if bond_key in iface: + bond_value = iface[bond_key] + if isinstance(bond_value, (tuple, list)): + bond_value = " ".join(bond_value) + bond_opts.append(value_tpl % (bond_value)) + break + if bond_opts: + iface_cfg['BONDING_OPTS'] = " ".join(bond_opts) + + @classmethod + def _render_physical_interfaces(cls, network_state, iface_contents): + for iface in network_state.iter_interfaces(_filter_by_physical): + iface_name = iface['name'] + iface_subnets = iface.get("subnets", []) + iface_cfg = iface_contents[iface_name] + route_cfg = iface_cfg.routes + if len(iface_subnets) == 1: + cls._render_subnet(iface_cfg, route_cfg, iface_subnets[0]) + elif len(iface_subnets) > 1: + for i, iface_subnet in enumerate(iface_subnets, + start=len(iface.children)): + iface_sub_cfg = iface_cfg.copy() + iface_sub_cfg.name = "%s:%s" % (iface_name, i) + iface.children.append(iface_sub_cfg) + cls._render_subnet(iface_sub_cfg, route_cfg, iface_subnet) + + @classmethod + def _render_bond_interfaces(cls, network_state, iface_contents): + for iface in network_state.iter_interfaces(_filter_by_type('bond')): + iface_name = iface['name'] + iface_cfg = iface_contents[iface_name] + cls._render_bonding_opts(iface_cfg, iface) + iface_master_name = iface['bond-master'] + iface_cfg['MASTER'] = iface_master_name + iface_cfg['SLAVE'] = True + # Ensure that the master interface (and any of its children) + # are actually marked as being bond types... + master_cfg = iface_contents[iface_master_name] + master_cfgs = [master_cfg] + master_cfgs.extend(master_cfg.children) + for master_cfg in master_cfgs: + master_cfg['BONDING_MASTER'] = True + master_cfg.kind = 'bond' + + @staticmethod + def _render_vlan_interfaces(network_state, iface_contents): + for iface in network_state.iter_interfaces(_filter_by_type('vlan')): + iface_name = iface['name'] + iface_cfg = iface_contents[iface_name] + iface_cfg['VLAN'] = True + iface_cfg['PHYSDEV'] = iface_name[:iface_name.rfind('.')] + + @staticmethod + def _render_dns(network_state, existing_dns_path=None): + content = resolv_conf.ResolvConf("") + if existing_dns_path and os.path.isfile(existing_dns_path): + content = resolv_conf.ResolvConf(util.load_file(existing_dns_path)) + for ns in network_state.dns_nameservers: + content.add_nameserver(ns) + for d in network_state.dns_searchdomains: + content.add_search_domain(d) + return str(content) + + @classmethod + def _render_bridge_interfaces(cls, network_state, iface_contents): + for iface in network_state.iter_interfaces(_filter_by_type('bridge')): + iface_name = iface['name'] + iface_cfg = iface_contents[iface_name] + iface_cfg.kind = 'bridge' + for old_key, new_key in cls.bridge_opts_keys: + if old_key in iface: + iface_cfg[new_key] = iface[old_key] + # Is this the right key to get all the connected interfaces? + for bridged_iface_name in iface.get('bridge_ports', []): + # Ensure all bridged interfaces are correctly tagged + # as being bridged to this interface. + bridged_cfg = iface_contents[bridged_iface_name] + bridged_cfgs = [bridged_cfg] + bridged_cfgs.extend(bridged_cfg.children) + for bridge_cfg in bridged_cfgs: + bridge_cfg['BRIDGE'] = iface_name + + @classmethod + def _render_sysconfig(cls, base_sysconf_dir, network_state): + '''Given state, return /etc/sysconfig files + contents''' + iface_contents = {} + for iface in network_state.iter_interfaces(): + iface_name = iface['name'] + iface_cfg = NetInterface(iface_name, base_sysconf_dir) + cls._render_iface_shared(iface, iface_cfg) + iface_contents[iface_name] = iface_cfg + cls._render_physical_interfaces(network_state, iface_contents) + cls._render_bond_interfaces(network_state, iface_contents) + cls._render_vlan_interfaces(network_state, iface_contents) + cls._render_bridge_interfaces(network_state, iface_contents) + contents = {} + for iface_name, iface_cfg in iface_contents.items(): + if iface_cfg or iface_cfg.children: + contents[iface_cfg.path] = iface_cfg.to_string() + for iface_cfg in iface_cfg.children: + if iface_cfg: + contents[iface_cfg.path] = iface_cfg.to_string() + if iface_cfg.routes: + contents[iface_cfg.routes.path] = iface_cfg.routes.to_string() + return contents + + def render_network_state( + self, target, network_state, sysconf_dir="etc/sysconfig/", + netrules='etc/udev/rules.d/70-persistent-net.rules', + dns='etc/resolv.conf'): + if target: + base_sysconf_dir = os.path.join(target, sysconf_dir) + else: + base_sysconf_dir = sysconf_dir + for path, data in self._render_sysconfig(base_sysconf_dir, + network_state).items(): + if target: + util.write_file(path, data) + else: + print("File to be at: %s" % path) + print(data) + if dns: + if target: + dns_path = os.path.join(target, dns) + resolv_content = self._render_dns(network_state, + existing_dns_path=dns_path) + util.write_file(dns_path, resolv_content) + else: + resolv_content = self._render_dns(network_state) + dns_path = dns + print("File to be at: %s" % dns_path) + print(resolv_content) + if netrules: + netrules_content = self._render_persistent_net(network_state) + if target: + netrules_path = os.path.join(target, netrules) + util.write_file(netrules_path, netrules_content) + else: + netrules_path = netrules + print("File to be at: %s" % netrules_path) + print(netrules_content) + + +def main(): + """Reads a os network state json file and outputs what would be written.""" + from cloudinit.sources.helpers import openstack + + import argparse + import json + + parser = argparse.ArgumentParser() + parser.add_argument("-f", "--file", metavar="FILE", + help=("openstack network json file" + " to read (required)"), + required=True) + parser.add_argument("-d", "--dir", metavar="DIR", + help=("directory to write output into (if" + " not provided then written to stdout)"), + default=None) + args = parser.parse_args() + + network_json = json.loads(util.load_file(args.file)) + net_state = network_state.parse_net_config_data( + openstack.convert_net_json(network_json), skip_broken=False) + r = Renderer() + r.render_network_state(args.dir, NetworkStateHelper(net_state)) + + +if __name__ == '__main__': + main() -- cgit v1.2.3 From cfcac2a70bc4dd9b47358261750ff535e78f4d5f Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Fri, 10 Jun 2016 15:02:21 -0700 Subject: Add a sysconfig rendering test --- cloudinit/net/sysconfig.py | 9 +++-- tests/unittests/test_net.py | 93 +++++++++++++++++++++++++++++++++------------ 2 files changed, 74 insertions(+), 28 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py index ff7e467f..01770213 100644 --- a/cloudinit/net/sysconfig.py +++ b/cloudinit/net/sysconfig.py @@ -102,7 +102,7 @@ class ConfigMap(object): return len(self._conf) def to_string(self): - buf = compat.StringIO() + buf = six.StringIO() buf.write(self.default_header) if self._conf: buf.write("\n") @@ -110,7 +110,7 @@ class ConfigMap(object): value = self._conf[key] if isinstance(value, bool): value = self._bool_map[value] - if not isinstance(value, compat.string_types): + if not isinstance(value, six.string_types): value = str(value) buf.write("%s=%s\n" % (key, _quote_value(value))) return buf.getvalue() @@ -229,7 +229,7 @@ class Renderer(object): """Given state, emit udev rules to map mac to ifname.""" # TODO(harlowja): this seems shared between eni renderer and # this, so move it to a shared location. - content = compat.StringIO() + content = six.StringIO() for iface in network_state.iter_interfaces(_filter_by_physical): # for physical interfaces write out a persist net udev rule if 'name' in iface and iface.get('mac_address'): @@ -253,7 +253,7 @@ class Renderer(object): iface_cfg['DHCPV6C'] = True iface_cfg['IPV6INIT'] = True iface_cfg['BOOTPROTO'] = 'dhcp' - elif subnet_type == 'dhcp4': + elif subnet_type in ['dhcp4', 'dhcp']: iface_cfg['BOOTPROTO'] = 'dhcp' elif subnet_type == 'static': iface_cfg['BOOTPROTO'] = 'static' @@ -414,6 +414,7 @@ class Renderer(object): self, target, network_state, sysconf_dir="etc/sysconfig/", netrules='etc/udev/rules.d/70-persistent-net.rules', dns='etc/resolv.conf'): + network_state = NetworkStateHelper(network_state) if target: base_sysconf_dir = os.path.join(target, sysconf_dir) else: diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py index 7998111a..e899c749 100644 --- a/tests/unittests/test_net.py +++ b/tests/unittests/test_net.py @@ -2,6 +2,7 @@ from cloudinit import net from cloudinit.net import cmdline from cloudinit.net import eni from cloudinit.net import network_state +from cloudinit.net import sysconfig from cloudinit import util from .helpers import mock @@ -75,7 +76,36 @@ STATIC_EXPECTED_1 = { } -class TestEniNetRendering(TestCase): +def _setup_test(tmp_dir, mock_get_devicelist, mock_sys_netdev_info, + mock_sys_dev_path): + mock_get_devicelist.return_value = ['eth1000'] + dev_characteristics = { + 'eth1000': { + "bridge": False, + "carrier": False, + "dormant": False, + "operstate": "down", + "address": "07-1C-C6-75-A4-BE", + } + } + + def netdev_info(name, field): + return dev_characteristics[name][field] + + mock_sys_netdev_info.side_effect = netdev_info + + def sys_dev_path(devname, path=""): + return tmp_dir + devname + "/" + path + + for dev in dev_characteristics: + os.makedirs(os.path.join(tmp_dir, dev)) + with open(os.path.join(tmp_dir, dev, 'operstate'), 'w') as fh: + fh.write("down") + + mock_sys_dev_path.side_effect = sys_dev_path + + +class TestSysConfigRendering(TestCase): @mock.patch("cloudinit.net.sys_dev_path") @mock.patch("cloudinit.net.sys_netdev_info") @@ -83,35 +113,50 @@ class TestEniNetRendering(TestCase): def test_default_generation(self, mock_get_devicelist, mock_sys_netdev_info, mock_sys_dev_path): - mock_get_devicelist.return_value = ['eth1000', 'lo'] - - dev_characteristics = { - 'eth1000': { - "bridge": False, - "carrier": False, - "dormant": False, - "operstate": "down", - "address": "07-1C-C6-75-A4-BE", - } - } + tmp_dir = tempfile.mkdtemp() + self.addCleanup(shutil.rmtree, tmp_dir) + _setup_test(tmp_dir, mock_get_devicelist, + mock_sys_netdev_info, mock_sys_dev_path) - def netdev_info(name, field): - return dev_characteristics[name][field] + network_cfg = net.generate_fallback_config() + ns = network_state.parse_net_config_data(network_cfg, + skip_broken=False) - mock_sys_netdev_info.side_effect = netdev_info + render_dir = os.path.join(tmp_dir, "render") + os.makedirs(render_dir) - tmp_dir = tempfile.mkdtemp() - self.addCleanup(shutil.rmtree, tmp_dir) + renderer = sysconfig.Renderer() + renderer.render_network_state(render_dir, ns) + + render_file = 'etc/sysconfig/network-scripts/ifcfg-eth1000' + with open(os.path.join(render_dir, render_file)) as fh: + content = fh.read() + expected_content = """ +# Created by cloud-init on instance boot automatically, do not edit. +# +BOOTPROTO=dhcp +DEVICE=eth1000 +HWADDR=07-1C-C6-75-A4-BE +NM_CONTROLLED=no +ONBOOT=yes +TYPE=Ethernet +USERCTL=no +""".lstrip() + self.assertEqual(expected_content, content) - def sys_dev_path(devname, path=""): - return tmp_dir + devname + "/" + path - for dev in dev_characteristics: - os.makedirs(os.path.join(tmp_dir, dev)) - with open(os.path.join(tmp_dir, dev, 'operstate'), 'w') as fh: - fh.write("down") +class TestEniNetRendering(TestCase): - mock_sys_dev_path.side_effect = sys_dev_path + @mock.patch("cloudinit.net.sys_dev_path") + @mock.patch("cloudinit.net.sys_netdev_info") + @mock.patch("cloudinit.net.get_devicelist") + def test_default_generation(self, mock_get_devicelist, + mock_sys_netdev_info, + mock_sys_dev_path): + tmp_dir = tempfile.mkdtemp() + self.addCleanup(shutil.rmtree, tmp_dir) + _setup_test(tmp_dir, mock_get_devicelist, + mock_sys_netdev_info, mock_sys_dev_path) network_cfg = net.generate_fallback_config() ns = network_state.parse_net_config_data(network_cfg, -- cgit v1.2.3 From f666f6116be64cb1c033ed6d0f829bdb2f21ba69 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Fri, 10 Jun 2016 15:23:32 -0700 Subject: Add a bunch more sample tests for sysconfig --- cloudinit/net/sysconfig.py | 20 +++++++++--- tests/unittests/test_net.py | 80 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 95 insertions(+), 5 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py index 01770213..a4bcaaad 100644 --- a/cloudinit/net/sysconfig.py +++ b/cloudinit/net/sysconfig.py @@ -24,6 +24,19 @@ from . import network_state from .udev import generate_udev_rule +def _make_header(sep='#'): + lines = [ + "Created by cloud-init on instance boot automatically, do not edit.", + "", + ] + for i in range(0, len(lines)): + if lines[i]: + lines[i] = sep + " " + lines[i] + else: + lines[i] = sep + return "\n".join(lines) + + def _filter_by_type(match_type): return lambda iface: match_type == iface['type'] @@ -80,9 +93,6 @@ class NetworkStateHelper(object): class ConfigMap(object): """Sysconfig like dictionary object.""" - default_header = ('# Created by cloud-init on instance' - ' boot automatically, do not edit.\n#') - # Why does redhat prefer yes/no to true/false?? _bool_map = { True: 'yes', @@ -103,7 +113,7 @@ class ConfigMap(object): def to_string(self): buf = six.StringIO() - buf.write(self.default_header) + buf.write(_make_header()) if self._conf: buf.write("\n") for key in sorted(self._conf.keys()): @@ -365,7 +375,7 @@ class Renderer(object): content.add_nameserver(ns) for d in network_state.dns_searchdomains: content.add_search_domain(d) - return str(content) + return "\n".join([_make_header(';'), str(content)]) @classmethod def _render_bridge_interfaces(cls, network_state, iface_contents): diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py index e899c749..4f4515a9 100644 --- a/tests/unittests/test_net.py +++ b/tests/unittests/test_net.py @@ -3,6 +3,7 @@ from cloudinit.net import cmdline from cloudinit.net import eni from cloudinit.net import network_state from cloudinit.net import sysconfig +from cloudinit.sources.helpers import openstack from cloudinit import util from .helpers import mock @@ -144,6 +145,85 @@ USERCTL=no """.lstrip() self.assertEqual(expected_content, content) + def test_openstack_rendering_sample(self): + ex_input = { + "services": [{"type": "dns", "address": "172.19.0.12"}], + "networks": [ + {"network_id": "dacd568d-5be6-4786-91fe-750c374b78b4", + "type": "ipv4", "netmask": "255.255.252.0", + "link": "tap1a81968a-79", + "routes": [{"netmask": "0.0.0.0", + "network": "0.0.0.0", + "gateway": "172.19.3.254"}], + "ip_address": "172.19.1.34", "id": "network0"}], + "links": [{"ethernet_mac_address": "fa:16:3e:ed:9a:59", + "mtu": None, "type": "bridge", "id": + "tap1a81968a-79", + "vif_id": "1a81968a-797a-400f-8a80-567f997eb93f"}]} + ex_mac_addrs = { + 'fa:16:3e:ed:9a:59': 'eth0', + } + network_cfg = openstack.convert_net_json( + ex_input, known_macs=ex_mac_addrs) + ns = network_state.parse_net_config_data(network_cfg, + skip_broken=False) + + tmp_dir = tempfile.mkdtemp() + self.addCleanup(shutil.rmtree, tmp_dir) + render_dir = os.path.join(tmp_dir, "render") + renderer = sysconfig.Renderer() + renderer.render_network_state(render_dir, ns) + + render_file = 'etc/sysconfig/network-scripts/ifcfg-eth0' + with open(os.path.join(render_dir, render_file)) as fh: + content = fh.read() + expected_content = """ +# Created by cloud-init on instance boot automatically, do not edit. +# +BOOTPROTO=static +DEFROUTE=yes +DEVICE=eth0 +GATEWAY=172.19.3.254 +HWADDR=fa:16:3e:ed:9a:59 +IPADDR=172.19.1.34 +NETMASK=255.255.252.0 +NM_CONTROLLED=no +ONBOOT=yes +TYPE=Ethernet +USERCTL=no +""".lstrip() + self.assertEqual(expected_content, content) + + route_render_file = 'etc/sysconfig/network-scripts/route-eth0' + with open(os.path.join(render_dir, route_render_file)) as fh: + content = fh.read() + expected_content = """ +# Created by cloud-init on instance boot automatically, do not edit. +# +ADDRESS0=0.0.0.0 +GATEWAY0=172.19.3.254 +NETMASK0=0.0.0.0 +""".lstrip() + self.assertEqual(expected_content, content) + + resolv_render_file = 'etc/resolv.conf' + with open(os.path.join(render_dir, resolv_render_file)) as fh: + content = fh.read() + expected_content = """ +; Created by cloud-init on instance boot automatically, do not edit. +; +nameserver 172.19.0.12 +""".lstrip() + self.assertEqual(expected_content, content) + + rules_render_file = 'etc/udev/rules.d/70-persistent-net.rules' + with open(os.path.join(render_dir, rules_render_file)) as fh: + content = fh.read() + expected_content = "".join([ + 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ', + 'ATTR{address}=="fa:16:3e:ed:9a:59", NAME="eth0"\n']) + self.assertEqual(expected_content, content) + class TestEniNetRendering(TestCase): -- cgit v1.2.3 From 6e19efb17609cd5c49941ea4f1608900b8459ca8 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Mon, 13 Jun 2016 13:10:07 -0700 Subject: Refactor some of sysconfig changes -> network_state module --- cloudinit/net/eni.py | 22 +++++---- cloudinit/net/network_state.py | 103 +++++++++++++++++++++++++++++------------ cloudinit/net/sysconfig.py | 26 +---------- 3 files changed, 87 insertions(+), 64 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index a695f5ed..df0df9b2 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -360,7 +360,15 @@ class Renderer(object): '''Given state, emit etc/network/interfaces content.''' content = "" - interfaces = network_state.get('interfaces') + content += "auto lo\niface lo inet loopback\n" + + nameservers = network_state.dns_nameservers + if nameservers: + content += " dns-nameservers %s\n" % (" ".join(nameservers)) + searchdomains = network_state.dns_searchdomains + if searchdomains: + content += " dns-search %s\n" % (" ".join(searchdomains)) + ''' Apply a sort order to ensure that we write out the physical interfaces first; this is critical for bonding @@ -371,12 +379,7 @@ class Renderer(object): 'bridge': 2, 'vlan': 3, } - content += "auto lo\niface lo inet loopback\n" - for dnskey, value in network_state.get('dns', {}).items(): - if len(value): - content += " dns-{} {}\n".format(dnskey, " ".join(value)) - - for iface in sorted(interfaces.values(), + for iface in sorted(network_state.iter_interfaces(), key=lambda k: (order[k['type']], k['name'])): if content[-2:] != "\n\n": @@ -409,7 +412,7 @@ class Renderer(object): content += "iface {name} {inet} {mode}\n".format(**iface) content += _iface_add_attrs(iface) - for route in network_state.get('routes'): + for route in network_state.iter_routes(): content += self._render_route(route) # global replacements until v2 format @@ -441,8 +444,7 @@ class Renderer(object): fp_prefix = os.path.sep.join((target, links_prefix)) for f in glob.glob(fp_prefix + "*"): os.unlink(f) - interfaces = network_state.get('interfaces') - for iface in interfaces.values(): + for iface in network_state.iter_interfaces(): if (iface['type'] == 'physical' and 'name' in iface and iface.get('mac_address')): fname = fp_prefix + iface['name'] + ".link" diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index a8be5e26..d75fc852 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -38,10 +38,10 @@ def parse_net_config_data(net_config, skip_broken=True): """ state = None if 'version' in net_config and 'config' in net_config: - ns = NetworkState(version=net_config.get('version'), - config=net_config.get('config')) - ns.parse_config(skip_broken=skip_broken) - state = ns.network_state + nsi = NetworkStateInterpreter(version=net_config.get('version'), + config=net_config.get('config')) + nsi.parse_config(skip_broken=skip_broken) + state = nsi.network_state return state @@ -57,11 +57,10 @@ def parse_net_config(path, skip_broken=True): def from_state_file(state_file): - network_state = None state = util.read_conf(state_file) - network_state = NetworkState() - network_state.load(state) - return network_state + nsi = NetworkStateInterpreter() + nsi.load(state) + return nsi def diff_keys(expected, actual): @@ -113,9 +112,51 @@ class CommandHandlerMeta(type): parents, dct) -@six.add_metaclass(CommandHandlerMeta) class NetworkState(object): + def __init__(self, network_state, version=NETWORK_STATE_VERSION): + self._network_state = copy.deepcopy(network_state) + self._version = version + + @property + def version(self): + return self._version + + def iter_routes(self, filter_func=None): + for route in self._network_state.get('routes', []): + if filter_func is not None: + if filter_func(route): + yield route + else: + yield route + + @property + def dns_nameservers(self): + try: + return self._network_state['dns']['nameservers'] + except KeyError: + return [] + + @property + def dns_searchdomains(self): + try: + return self._network_state['dns']['search'] + except KeyError: + return [] + + def iter_interfaces(self, filter_func=None): + ifaces = self._network_state.get('interfaces', {}) + for iface in six.itervalues(ifaces): + if filter_func is None: + yield iface + else: + if filter_func(iface): + yield iface + + +@six.add_metaclass(CommandHandlerMeta) +class NetworkStateInterpreter(object): + initial_network_state = { 'interfaces': {}, 'routes': [], @@ -126,22 +167,26 @@ class NetworkState(object): } def __init__(self, version=NETWORK_STATE_VERSION, config=None): - self.version = version - self.config = config - self.network_state = copy.deepcopy(self.initial_network_state) + self._version = version + self._config = config + self._network_state = copy.deepcopy(self.initial_network_state) + + @property + def network_state(self): + return NetworkState(self._network_state, version=self._version) def dump(self): state = { - 'version': self.version, - 'config': self.config, - 'network_state': self.network_state, + 'version': self._version, + 'config': self._config, + 'network_state': self._network_state, } return util.yaml_dumps(state) def load(self, state): if 'version' not in state: LOG.error('Invalid state, missing version field') - raise Exception('Invalid state, missing version field') + raise ValueError('Invalid state, missing version field') required_keys = NETWORK_STATE_REQUIRED_KEYS[state['version']] missing_keys = diff_keys(required_keys, state) @@ -155,11 +200,11 @@ class NetworkState(object): setattr(self, key, state[key]) def dump_network_state(self): - return util.yaml_dumps(self.network_state) + return util.yaml_dumps(self._network_state) def parse_config(self, skip_broken=True): # rebuild network state - for command in self.config: + for command in self._config: command_type = command['type'] try: handler = self.command_handlers[command_type] @@ -189,7 +234,7 @@ class NetworkState(object): } ''' - interfaces = self.network_state.get('interfaces') + interfaces = self._network_state.get('interfaces', {}) iface = interfaces.get(command['name'], {}) for param, val in command.get('params', {}).items(): iface.update({param: val}) @@ -215,7 +260,7 @@ class NetworkState(object): 'gateway': None, 'subnets': subnets, }) - self.network_state['interfaces'].update({command.get('name'): iface}) + self._network_state['interfaces'].update({command.get('name'): iface}) self.dump_network_state() @ensure_command_keys(['name', 'vlan_id', 'vlan_link']) @@ -228,7 +273,7 @@ class NetworkState(object): hwaddress ether BC:76:4E:06:96:B3 vlan-raw-device eth0 ''' - interfaces = self.network_state.get('interfaces') + interfaces = self._network_state.get('interfaces', {}) self.handle_physical(command) iface = interfaces.get(command.get('name'), {}) iface['vlan-raw-device'] = command.get('vlan_link') @@ -263,12 +308,12 @@ class NetworkState(object): ''' self.handle_physical(command) - interfaces = self.network_state.get('interfaces') + interfaces = self._network_state.get('interfaces') iface = interfaces.get(command.get('name'), {}) for param, val in command.get('params').items(): iface.update({param: val}) iface.update({'bond-slaves': 'none'}) - self.network_state['interfaces'].update({iface['name']: iface}) + self._network_state['interfaces'].update({iface['name']: iface}) # handle bond slaves for ifname in command.get('bond_interfaces'): @@ -280,13 +325,13 @@ class NetworkState(object): # inject placeholder self.handle_physical(cmd) - interfaces = self.network_state.get('interfaces') + interfaces = self._network_state.get('interfaces', {}) bond_if = interfaces.get(ifname) bond_if['bond-master'] = command.get('name') # copy in bond config into slave for param, val in command.get('params').items(): bond_if.update({param: val}) - self.network_state['interfaces'].update({ifname: bond_if}) + self._network_state['interfaces'].update({ifname: bond_if}) @ensure_command_keys(['name', 'bridge_interfaces', 'params']) def handle_bridge(self, command): @@ -319,7 +364,7 @@ class NetworkState(object): # find one of the bridge port ifaces to get mac_addr # handle bridge_slaves - interfaces = self.network_state.get('interfaces') + interfaces = self._network_state.get('interfaces', {}) for ifname in command.get('bridge_interfaces'): if ifname in interfaces: continue @@ -330,7 +375,7 @@ class NetworkState(object): # inject placeholder self.handle_physical(cmd) - interfaces = self.network_state.get('interfaces') + interfaces = self._network_state.get('interfaces', {}) self.handle_physical(command) iface = interfaces.get(command.get('name'), {}) iface['bridge_ports'] = command['bridge_interfaces'] @@ -341,7 +386,7 @@ class NetworkState(object): @ensure_command_keys(['address']) def handle_nameserver(self, command): - dns = self.network_state.get('dns') + dns = self._network_state.get('dns') if 'address' in command: addrs = command['address'] if not type(addrs) == list: @@ -357,7 +402,7 @@ class NetworkState(object): @ensure_command_keys(['destination']) def handle_route(self, command): - routes = self.network_state.get('routes') + routes = self._network_state.get('routes', []) network, cidr = command['destination'].split("/") netmask = cidr2mask(int(cidr)) route = { diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py index a4bcaaad..647ca3ed 100644 --- a/cloudinit/net/sysconfig.py +++ b/cloudinit/net/sysconfig.py @@ -67,29 +67,6 @@ def _quote_value(value): return value -class NetworkStateHelper(object): - def __init__(self, network_state): - self._network_state = network_state.copy() - - @property - def dns_nameservers(self): - return self._network_state['dns']['nameservers'] - - @property - def dns_searchdomains(self): - return self._network_state['dns']['search'] - - def iter_interfaces(self, filter_func=None): - ifaces = self._network_state.get('interfaces') - if ifaces: - for iface in ifaces.values(): - if filter_func is None: - yield iface - else: - if filter_func(iface): - yield iface - - class ConfigMap(object): """Sysconfig like dictionary object.""" @@ -424,7 +401,6 @@ class Renderer(object): self, target, network_state, sysconf_dir="etc/sysconfig/", netrules='etc/udev/rules.d/70-persistent-net.rules', dns='etc/resolv.conf'): - network_state = NetworkStateHelper(network_state) if target: base_sysconf_dir = os.path.join(target, sysconf_dir) else: @@ -480,7 +456,7 @@ def main(): net_state = network_state.parse_net_config_data( openstack.convert_net_json(network_json), skip_broken=False) r = Renderer() - r.render_network_state(args.dir, NetworkStateHelper(net_state)) + r.render_network_state(args.dir, net_state) if __name__ == '__main__': -- cgit v1.2.3 From e0b1e3a8c925446ee9e6d15aae1783b49fb870f8 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Tue, 14 Jun 2016 10:58:18 -0700 Subject: Make the os samples easier to extend (for new samples) --- cloudinit/net/network_state.py | 1 + tests/unittests/test_net.py | 153 +++++++++++++++++++++-------------------- 2 files changed, 79 insertions(+), 75 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/network_state.py b/cloudinit/net/network_state.py index d75fc852..8ca5106f 100644 --- a/cloudinit/net/network_state.py +++ b/cloudinit/net/network_state.py @@ -170,6 +170,7 @@ class NetworkStateInterpreter(object): self._version = version self._config = config self._network_state = copy.deepcopy(self.initial_network_state) + self._parsed = False @property def network_state(self): diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py index 4f4515a9..43602030 100644 --- a/tests/unittests/test_net.py +++ b/tests/unittests/test_net.py @@ -76,6 +76,71 @@ STATIC_EXPECTED_1 = { 'dns_nameservers': ['10.0.1.1']}], } +# Examples (and expected outputs for various renderers). +OS_SAMPLES = [ + { + 'in_data': { + "services": [{"type": "dns", "address": "172.19.0.12"}], + "networks": [{ + "network_id": "dacd568d-5be6-4786-91fe-750c374b78b4", + "type": "ipv4", "netmask": "255.255.252.0", + "link": "tap1a81968a-79", + "routes": [{ + "netmask": "0.0.0.0", + "network": "0.0.0.0", + "gateway": "172.19.3.254", + }], + "ip_address": "172.19.1.34", "id": "network0" + }], + "links": [ + { + "ethernet_mac_address": "fa:16:3e:ed:9a:59", + "mtu": None, "type": "bridge", "id": + "tap1a81968a-79", + "vif_id": "1a81968a-797a-400f-8a80-567f997eb93f" + }, + ], + }, + 'in_macs': { + 'fa:16:3e:ed:9a:59': 'eth0', + }, + 'out_sysconfig': [ + ('etc/sysconfig/network-scripts/ifcfg-eth0', + """ +# Created by cloud-init on instance boot automatically, do not edit. +# +BOOTPROTO=static +DEFROUTE=yes +DEVICE=eth0 +GATEWAY=172.19.3.254 +HWADDR=fa:16:3e:ed:9a:59 +IPADDR=172.19.1.34 +NETMASK=255.255.252.0 +NM_CONTROLLED=no +ONBOOT=yes +TYPE=Ethernet +USERCTL=no +""".lstrip()), + ('etc/sysconfig/network-scripts/route-eth0', + """ +# Created by cloud-init on instance boot automatically, do not edit. +# +ADDRESS0=0.0.0.0 +GATEWAY0=172.19.3.254 +NETMASK0=0.0.0.0 +""".lstrip()), + ('etc/resolv.conf', + """ +; Created by cloud-init on instance boot automatically, do not edit. +; +nameserver 172.19.0.12 +""".lstrip()), + ('etc/udev/rules.d/70-persistent-net.rules', + "".join(['SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ', + 'ATTR{address}=="fa:16:3e:ed:9a:59", NAME="eth0"\n']))] + } +] + def _setup_test(tmp_dir, mock_get_devicelist, mock_sys_netdev_info, mock_sys_dev_path): @@ -145,84 +210,22 @@ USERCTL=no """.lstrip() self.assertEqual(expected_content, content) - def test_openstack_rendering_sample(self): - ex_input = { - "services": [{"type": "dns", "address": "172.19.0.12"}], - "networks": [ - {"network_id": "dacd568d-5be6-4786-91fe-750c374b78b4", - "type": "ipv4", "netmask": "255.255.252.0", - "link": "tap1a81968a-79", - "routes": [{"netmask": "0.0.0.0", - "network": "0.0.0.0", - "gateway": "172.19.3.254"}], - "ip_address": "172.19.1.34", "id": "network0"}], - "links": [{"ethernet_mac_address": "fa:16:3e:ed:9a:59", - "mtu": None, "type": "bridge", "id": - "tap1a81968a-79", - "vif_id": "1a81968a-797a-400f-8a80-567f997eb93f"}]} - ex_mac_addrs = { - 'fa:16:3e:ed:9a:59': 'eth0', - } - network_cfg = openstack.convert_net_json( - ex_input, known_macs=ex_mac_addrs) - ns = network_state.parse_net_config_data(network_cfg, - skip_broken=False) - + def test_openstack_rendering_samples(self): tmp_dir = tempfile.mkdtemp() self.addCleanup(shutil.rmtree, tmp_dir) render_dir = os.path.join(tmp_dir, "render") - renderer = sysconfig.Renderer() - renderer.render_network_state(render_dir, ns) - - render_file = 'etc/sysconfig/network-scripts/ifcfg-eth0' - with open(os.path.join(render_dir, render_file)) as fh: - content = fh.read() - expected_content = """ -# Created by cloud-init on instance boot automatically, do not edit. -# -BOOTPROTO=static -DEFROUTE=yes -DEVICE=eth0 -GATEWAY=172.19.3.254 -HWADDR=fa:16:3e:ed:9a:59 -IPADDR=172.19.1.34 -NETMASK=255.255.252.0 -NM_CONTROLLED=no -ONBOOT=yes -TYPE=Ethernet -USERCTL=no -""".lstrip() - self.assertEqual(expected_content, content) - - route_render_file = 'etc/sysconfig/network-scripts/route-eth0' - with open(os.path.join(render_dir, route_render_file)) as fh: - content = fh.read() - expected_content = """ -# Created by cloud-init on instance boot automatically, do not edit. -# -ADDRESS0=0.0.0.0 -GATEWAY0=172.19.3.254 -NETMASK0=0.0.0.0 -""".lstrip() - self.assertEqual(expected_content, content) - - resolv_render_file = 'etc/resolv.conf' - with open(os.path.join(render_dir, resolv_render_file)) as fh: - content = fh.read() - expected_content = """ -; Created by cloud-init on instance boot automatically, do not edit. -; -nameserver 172.19.0.12 -""".lstrip() - self.assertEqual(expected_content, content) - - rules_render_file = 'etc/udev/rules.d/70-persistent-net.rules' - with open(os.path.join(render_dir, rules_render_file)) as fh: - content = fh.read() - expected_content = "".join([ - 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ', - 'ATTR{address}=="fa:16:3e:ed:9a:59", NAME="eth0"\n']) - self.assertEqual(expected_content, content) + for os_sample in OS_SAMPLES: + ex_input = os_sample['in_data'] + ex_mac_addrs = os_sample['in_macs'] + network_cfg = openstack.convert_net_json( + ex_input, known_macs=ex_mac_addrs) + ns = network_state.parse_net_config_data(network_cfg, + skip_broken=False) + renderer = sysconfig.Renderer() + renderer.render_network_state(render_dir, ns) + for fn, expected_content in os_sample.get('out_sysconfig', []): + with open(os.path.join(render_dir, fn)) as fh: + self.assertEqual(expected_content, fh.read()) class TestEniNetRendering(TestCase): -- cgit v1.2.3 From 632d56a23a947a23e18fa234d675e34a1a119593 Mon Sep 17 00:00:00 2001 From: Scott Moser Date: Tue, 14 Jun 2016 15:18:53 -0400 Subject: fix pep8 failure introduced in recent commit. The commit 1232 (Refactor a large part of the networking code) broke pep8. --- cloudinit/net/eni.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index a695f5ed..5a90eb32 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -391,8 +391,8 @@ class Renderer(object): iface['control'] = subnet.get('control', 'auto') if iface['mode'].endswith('6'): iface['inet'] += '6' - elif (iface['mode'] == 'static' - and ":" in subnet['address']): + elif (iface['mode'] == 'static' and + ":" in subnet['address']): iface['inet'] += '6' if iface['mode'].startswith('dhcp'): iface['mode'] = 'dhcp' -- cgit v1.2.3 From 459de83024b41c32823b75cf483da994fb1388b7 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Wed, 15 Jun 2016 16:11:24 -0700 Subject: Fixup code review comments --- cloudinit/distros/debian.py | 12 ++--- cloudinit/distros/rhel.py | 4 +- cloudinit/net/__init__.py | 1 - cloudinit/net/eni.py | 36 +++++++------ cloudinit/net/renderer.py | 48 +++++++++++++++++ cloudinit/net/sysconfig.py | 123 +++++++++++--------------------------------- tests/unittests/test_net.py | 10 ++-- 7 files changed, 109 insertions(+), 125 deletions(-) create mode 100644 cloudinit/net/renderer.py (limited to 'cloudinit/net') diff --git a/cloudinit/distros/debian.py b/cloudinit/distros/debian.py index e71aaa97..511ed4fe 100644 --- a/cloudinit/distros/debian.py +++ b/cloudinit/distros/debian.py @@ -57,7 +57,11 @@ class Distro(distros.Distro): # should only happen say once per instance...) self._runner = helpers.Runners(paths) self.osfamily = 'debian' - self._net_renderer = eni.Renderer() + self._net_renderer = eni.Renderer({ + 'eni_path': self.network_conf_fn, + 'links_prefix_path': self.links_prefix, + 'netrules_path': None, + }) def apply_locale(self, locale, out_fn=None): if not out_fn: @@ -82,12 +86,8 @@ class Distro(distros.Distro): def _write_network_config(self, netconfig): ns = net.parse_net_config_data(netconfig) - self._net_renderer.render_network_state( - target="/", network_state=ns, - eni=self.network_conf_fn, links_prefix=self.links_prefix, - netrules=None) + self._net_renderer.render_network_state("/", ns) _maybe_remove_legacy_eth0() - return [] def _bring_up_interfaces(self, device_names): diff --git a/cloudinit/distros/rhel.py b/cloudinit/distros/rhel.py index 20525e47..1aa42d75 100644 --- a/cloudinit/distros/rhel.py +++ b/cloudinit/distros/rhel.py @@ -67,8 +67,8 @@ class Distro(distros.Distro): self.package_command('install', pkgs=pkglist) def _write_network_config(self, netconfig): - self._net_renderer.render_network_state( - target="/", parse_net_config_data(netconfig)) + ns = parse_net_config_data(netconfig) + self._net_renderer.render_network_state("/", ns) return [] def _write_network(self, settings): diff --git a/cloudinit/net/__init__.py b/cloudinit/net/__init__.py index f5668fff..6959ad34 100644 --- a/cloudinit/net/__init__.py +++ b/cloudinit/net/__init__.py @@ -26,7 +26,6 @@ from cloudinit import util LOG = logging.getLogger(__name__) SYS_CLASS_NET = "/sys/class/net/" DEFAULT_PRIMARY_INTERFACE = 'eth0' -LINKS_FNAME_PREFIX = "etc/systemd/network/50-cloud-init-" def sys_dev_path(devname, path=""): diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index df0df9b2..352f7dd5 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -16,10 +16,9 @@ import glob import os import re -from . import LINKS_FNAME_PREFIX from . import ParserError -from .udev import generate_udev_rule +from . import renderer from cloudinit import util @@ -297,9 +296,18 @@ def _ifaces_to_net_config_data(ifaces): 'config': [devs[d] for d in sorted(devs)]} -class Renderer(object): +class Renderer(renderer.Renderer): """Renders network information in a /etc/network/interfaces format.""" + def __init__(self, config=None): + if not config: + config = {} + self.eni_path = config.get('eni_path', 'etc/network/interfaces') + self.links_path_prefix = config.get( + 'links_path_prefix', 'etc/systemd/network/50-cloud-init-') + self.netrules_path = config.get( + 'netrules_path', 'etc/udev/rules.d/70-persistent-net.rules') + def _render_persistent_net(self, network_state): """Given state, emit udev rules to map mac to ifname.""" content = "" @@ -419,29 +427,23 @@ class Renderer(object): content = content.replace('mac_address', 'hwaddress') return content - def render_network_state( - self, target, network_state, eni="etc/network/interfaces", - links_prefix=LINKS_FNAME_PREFIX, - netrules='etc/udev/rules.d/70-persistent-net.rules', - writer=None): - - fpeni = os.path.sep.join((target, eni,)) + def render_network_state(self, target, network_state): + fpeni = os.path.join(target, self.eni_path) util.ensure_dir(os.path.dirname(fpeni)) util.write_file(fpeni, self._render_interfaces(network_state)) - if netrules: - netrules = os.path.sep.join((target, netrules,)) + if self.netrules_path: + netrules = os.path.join(target, self.netrules_path) util.ensure_dir(os.path.dirname(netrules)) util.write_file(netrules, self._render_persistent_net(network_state)) - if links_prefix: + if self.links_path_prefix: self._render_systemd_links(target, network_state, - links_prefix=links_prefix) + links_prefix=self.links_path_prefix) - def _render_systemd_links(self, target, network_state, - links_prefix=LINKS_FNAME_PREFIX): - fp_prefix = os.path.sep.join((target, links_prefix)) + def _render_systemd_links(self, target, network_state, links_prefix): + fp_prefix = os.path.join(target, links_prefix) for f in glob.glob(fp_prefix + "*"): os.unlink(f) for iface in network_state.iter_interfaces(): diff --git a/cloudinit/net/renderer.py b/cloudinit/net/renderer.py new file mode 100644 index 00000000..310cbe0d --- /dev/null +++ b/cloudinit/net/renderer.py @@ -0,0 +1,48 @@ +# Copyright (C) 2013-2014 Canonical Ltd. +# +# Author: Scott Moser +# Author: Blake Rouse +# +# Curtin is free software: you can redistribute it and/or modify it under +# the terms of the GNU Affero General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# Curtin is distributed in the hope that it will be useful, but WITHOUT ANY +# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +# more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with Curtin. If not, see . + +import six + +from .udev import generate_udev_rule + + +def filter_by_type(match_type): + return lambda iface: match_type == iface['type'] + + +def filter_by_name(match_name): + return lambda iface: match_name == iface['name'] + + +filter_by_physical = filter_by_type('physical') + + +class Renderer(object): + + @staticmethod + def _render_persistent_net(network_state): + """Given state, emit udev rules to map mac to ifname.""" + # TODO(harlowja): this seems shared between eni renderer and + # this, so move it to a shared location. + content = six.StringIO() + for iface in network_state.iter_interfaces(filter_by_physical): + # for physical interfaces write out a persist net udev rule + if 'name' in iface and iface.get('mac_address'): + content.write(generate_udev_rule(iface['name'], + iface['mac_address'])) + return content.getvalue() diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py index 647ca3ed..dd005796 100644 --- a/cloudinit/net/sysconfig.py +++ b/cloudinit/net/sysconfig.py @@ -20,9 +20,10 @@ import six from cloudinit.distros.parsers import resolv_conf from cloudinit import util -from . import network_state from .udev import generate_udev_rule +from . import renderer + def _make_header(sep='#'): lines = [ @@ -37,17 +38,6 @@ def _make_header(sep='#'): return "\n".join(lines) -def _filter_by_type(match_type): - return lambda iface: match_type == iface['type'] - - -def _filter_by_name(match_name): - return lambda iface: match_name == iface['name'] - - -_filter_by_physical = _filter_by_type('physical') - - def _is_default_route(route): if route['network'] == '::' and route['netmask'] == 0: return True @@ -182,7 +172,7 @@ class NetInterface(ConfigMap): return c -class Renderer(object): +class Renderer(renderer.Renderer): """Renders network information in a /etc/sysconfig format.""" # See: https://access.redhat.com/documentation/en-US/\ @@ -211,18 +201,13 @@ class Renderer(object): ('bridge_bridgeprio', 'PRIO'), ]) - @staticmethod - def _render_persistent_net(network_state): - """Given state, emit udev rules to map mac to ifname.""" - # TODO(harlowja): this seems shared between eni renderer and - # this, so move it to a shared location. - content = six.StringIO() - for iface in network_state.iter_interfaces(_filter_by_physical): - # for physical interfaces write out a persist net udev rule - if 'name' in iface and iface.get('mac_address'): - content.write(generate_udev_rule(iface['name'], - iface['mac_address'])) - return content.getvalue() + def __init__(self, config=None): + if not config: + config = {} + self.sysconf_dir = config.get('sysconf_dir', 'etc/sysconfig/') + self.netrules_path = config.get( + 'netrules_path', 'etc/udev/rules.d/70-persistent-net.rules') + self.dns_path = config.get('dns_path', 'etc/resolv.conf') @classmethod def _render_iface_shared(cls, iface, iface_cfg): @@ -302,7 +287,7 @@ class Renderer(object): @classmethod def _render_physical_interfaces(cls, network_state, iface_contents): - for iface in network_state.iter_interfaces(_filter_by_physical): + for iface in network_state.iter_interfaces(renderer.filter_by_physical): iface_name = iface['name'] iface_subnets = iface.get("subnets", []) iface_cfg = iface_contents[iface_name] @@ -319,7 +304,7 @@ class Renderer(object): @classmethod def _render_bond_interfaces(cls, network_state, iface_contents): - for iface in network_state.iter_interfaces(_filter_by_type('bond')): + for iface in network_state.iter_interfaces(renderer.filter_by_type('bond')): iface_name = iface['name'] iface_cfg = iface_contents[iface_name] cls._render_bonding_opts(iface_cfg, iface) @@ -337,7 +322,7 @@ class Renderer(object): @staticmethod def _render_vlan_interfaces(network_state, iface_contents): - for iface in network_state.iter_interfaces(_filter_by_type('vlan')): + for iface in network_state.iter_interfaces(renderer.filter_by_type('vlan')): iface_name = iface['name'] iface_cfg = iface_contents[iface_name] iface_cfg['VLAN'] = True @@ -348,15 +333,15 @@ class Renderer(object): content = resolv_conf.ResolvConf("") if existing_dns_path and os.path.isfile(existing_dns_path): content = resolv_conf.ResolvConf(util.load_file(existing_dns_path)) - for ns in network_state.dns_nameservers: - content.add_nameserver(ns) - for d in network_state.dns_searchdomains: - content.add_search_domain(d) + for nameserver in network_state.dns_nameservers: + content.add_nameserver(nameserver) + for searchdomain in network_state.dns_searchdomains: + content.add_search_domain(searchdomain) return "\n".join([_make_header(';'), str(content)]) @classmethod def _render_bridge_interfaces(cls, network_state, iface_contents): - for iface in network_state.iter_interfaces(_filter_by_type('bridge')): + for iface in network_state.iter_interfaces(renderer.filter_by_type('bridge')): iface_name = iface['name'] iface_cfg = iface_contents[iface_name] iface_cfg.kind = 'bridge' @@ -397,67 +382,17 @@ class Renderer(object): contents[iface_cfg.routes.path] = iface_cfg.routes.to_string() return contents - def render_network_state( - self, target, network_state, sysconf_dir="etc/sysconfig/", - netrules='etc/udev/rules.d/70-persistent-net.rules', - dns='etc/resolv.conf'): - if target: - base_sysconf_dir = os.path.join(target, sysconf_dir) - else: - base_sysconf_dir = sysconf_dir + def render_network_state(self, target, network_state): + base_sysconf_dir = os.path.join(target, self.sysconf_dir) for path, data in self._render_sysconfig(base_sysconf_dir, network_state).items(): - if target: - util.write_file(path, data) - else: - print("File to be at: %s" % path) - print(data) - if dns: - if target: - dns_path = os.path.join(target, dns) - resolv_content = self._render_dns(network_state, - existing_dns_path=dns_path) - util.write_file(dns_path, resolv_content) - else: - resolv_content = self._render_dns(network_state) - dns_path = dns - print("File to be at: %s" % dns_path) - print(resolv_content) - if netrules: + util.write_file(path, data) + if self.dns_path: + dns_path = os.path.join(target, self.dns_path) + resolv_content = self._render_dns(network_state, + existing_dns_path=dns_path) + util.write_file(dns_path, resolv_content) + if self.netrules_path: netrules_content = self._render_persistent_net(network_state) - if target: - netrules_path = os.path.join(target, netrules) - util.write_file(netrules_path, netrules_content) - else: - netrules_path = netrules - print("File to be at: %s" % netrules_path) - print(netrules_content) - - -def main(): - """Reads a os network state json file and outputs what would be written.""" - from cloudinit.sources.helpers import openstack - - import argparse - import json - - parser = argparse.ArgumentParser() - parser.add_argument("-f", "--file", metavar="FILE", - help=("openstack network json file" - " to read (required)"), - required=True) - parser.add_argument("-d", "--dir", metavar="DIR", - help=("directory to write output into (if" - " not provided then written to stdout)"), - default=None) - args = parser.parse_args() - - network_json = json.loads(util.load_file(args.file)) - net_state = network_state.parse_net_config_data( - openstack.convert_net_json(network_json), skip_broken=False) - r = Renderer() - r.render_network_state(args.dir, net_state) - - -if __name__ == '__main__': - main() + netrules_path = os.path.join(target, self.netrules_path) + util.write_file(netrules_path, netrules_content) diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py index 43602030..3ae00fc6 100644 --- a/tests/unittests/test_net.py +++ b/tests/unittests/test_net.py @@ -248,11 +248,11 @@ class TestEniNetRendering(TestCase): render_dir = os.path.join(tmp_dir, "render") os.makedirs(render_dir) - renderer = eni.Renderer() - renderer.render_network_state(render_dir, ns, - eni="interfaces", - links_prefix=None, - netrules=None) + renderer = eni.Renderer( + {'links_path_prefix': None, + 'eni_path': 'interfaces', 'netrules_path': None, + }) + renderer.render_network_state(render_dir, ns) self.assertTrue(os.path.exists(os.path.join(render_dir, 'interfaces'))) -- cgit v1.2.3 From a454a6408b3c7ecc816073049d060632191099bb Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Wed, 15 Jun 2016 16:15:28 -0700 Subject: Fix line length issues --- cloudinit/net/eni.py | 13 ------------- cloudinit/net/sysconfig.py | 14 ++++++++------ 2 files changed, 8 insertions(+), 19 deletions(-) (limited to 'cloudinit/net') diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index 352f7dd5..c8adb1ae 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -308,19 +308,6 @@ class Renderer(renderer.Renderer): self.netrules_path = config.get( 'netrules_path', 'etc/udev/rules.d/70-persistent-net.rules') - def _render_persistent_net(self, network_state): - """Given state, emit udev rules to map mac to ifname.""" - content = "" - interfaces = network_state.get('interfaces') - for iface in interfaces.values(): - # for physical interfaces write out a persist net udev rule - if iface['type'] == 'physical' and \ - 'name' in iface and iface.get('mac_address'): - content += generate_udev_rule(iface['name'], - iface['mac_address']) - - return content - def _render_route(self, route, indent=""): """When rendering routes for an iface, in some cases applying a route may result in the route command returning non-zero which produces diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py index dd005796..c53acf71 100644 --- a/cloudinit/net/sysconfig.py +++ b/cloudinit/net/sysconfig.py @@ -20,8 +20,6 @@ import six from cloudinit.distros.parsers import resolv_conf from cloudinit import util -from .udev import generate_udev_rule - from . import renderer @@ -287,7 +285,8 @@ class Renderer(renderer.Renderer): @classmethod def _render_physical_interfaces(cls, network_state, iface_contents): - for iface in network_state.iter_interfaces(renderer.filter_by_physical): + physical_filter = renderer.filter_by_physical + for iface in network_state.iter_interfaces(physical_filter): iface_name = iface['name'] iface_subnets = iface.get("subnets", []) iface_cfg = iface_contents[iface_name] @@ -304,7 +303,8 @@ class Renderer(renderer.Renderer): @classmethod def _render_bond_interfaces(cls, network_state, iface_contents): - for iface in network_state.iter_interfaces(renderer.filter_by_type('bond')): + bond_filter = renderer.filter_by_type('bond') + for iface in network_state.iter_interfaces(bond_filter): iface_name = iface['name'] iface_cfg = iface_contents[iface_name] cls._render_bonding_opts(iface_cfg, iface) @@ -322,7 +322,8 @@ class Renderer(renderer.Renderer): @staticmethod def _render_vlan_interfaces(network_state, iface_contents): - for iface in network_state.iter_interfaces(renderer.filter_by_type('vlan')): + vlan_filter = renderer.filter_by_type('vlan') + for iface in network_state.iter_interfaces(vlan_filter): iface_name = iface['name'] iface_cfg = iface_contents[iface_name] iface_cfg['VLAN'] = True @@ -341,7 +342,8 @@ class Renderer(renderer.Renderer): @classmethod def _render_bridge_interfaces(cls, network_state, iface_contents): - for iface in network_state.iter_interfaces(renderer.filter_by_type('bridge')): + bridge_filter = renderer.filter_by_type('bridge') + for iface in network_state.iter_interfaces(bridge_filter): iface_name = iface['name'] iface_cfg = iface_contents[iface_name] iface_cfg.kind = 'bridge' -- cgit v1.2.3