diff options
Diffstat (limited to 'cloudinit/net/renderers')
| -rw-r--r-- | cloudinit/net/renderers/__init__.py | 0 | ||||
| -rw-r--r-- | cloudinit/net/renderers/eni.py | 399 |
2 files changed, 0 insertions, 399 deletions
diff --git a/cloudinit/net/renderers/__init__.py b/cloudinit/net/renderers/__init__.py deleted file mode 100644 index e69de29b..00000000 --- a/cloudinit/net/renderers/__init__.py +++ /dev/null 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 <http://www.gnu.org/licenses/>. - -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'], - "" - ])) |