diff options
Diffstat (limited to 'cloudinit/net/eni.py')
| -rw-r--r-- | cloudinit/net/eni.py | 53 |
1 files changed, 31 insertions, 22 deletions
diff --git a/cloudinit/net/eni.py b/cloudinit/net/eni.py index 5b249f1f..9819d4f5 100644 --- a/cloudinit/net/eni.py +++ b/cloudinit/net/eni.py @@ -8,6 +8,7 @@ import re from . import ParserError from . import renderer +from .network_state import subnet_is_ipv6 from cloudinit import util @@ -111,16 +112,6 @@ def _iface_start_entry(iface, index, render_hwaddress=False): return lines -def _subnet_is_ipv6(subnet): - # 'static6' or 'dhcp6' - if subnet['type'].endswith('6'): - # This is a request for DHCPv6. - return True - elif subnet['type'] == 'static' and ":" in subnet['address']: - return True - return False - - def _parse_deb_config_data(ifaces, contents, src_dir, src_path): """Parses the file contents, placing result into ifaces. @@ -273,8 +264,11 @@ def _ifaces_to_net_config_data(ifaces): # devname is 'eth0' for name='eth0:1' devname = name.partition(":")[0] if devname not in devs: - devs[devname] = {'type': 'physical', 'name': devname, - 'subnets': []} + if devname == "lo": + dtype = "loopback" + else: + dtype = "physical" + devs[devname] = {'type': dtype, 'name': devname, 'subnets': []} # this isnt strictly correct, but some might specify # hwaddress on a nic for matching / declaring name. if 'hwaddress' in data: @@ -367,7 +361,7 @@ class Renderer(renderer.Renderer): iface['mode'] = subnet['type'] iface['control'] = subnet.get('control', 'auto') subnet_inet = 'inet' - if _subnet_is_ipv6(subnet): + if subnet_is_ipv6(subnet): subnet_inet += '6' iface['inet'] = subnet_inet if subnet['type'].startswith('dhcp'): @@ -423,10 +417,11 @@ class Renderer(renderer.Renderer): bonding ''' order = { - 'physical': 0, - 'bond': 1, - 'bridge': 2, - 'vlan': 3, + 'loopback': 0, + 'physical': 1, + 'bond': 2, + 'bridge': 3, + 'vlan': 4, } sections = [] @@ -444,14 +439,14 @@ class Renderer(renderer.Renderer): return '\n\n'.join(['\n'.join(s) for s in sections]) + "\n" - def render_network_state(self, target, network_state): - fpeni = os.path.join(target, self.eni_path) + def render_network_state(self, network_state, target=None): + fpeni = util.target_path(target, self.eni_path) util.ensure_dir(os.path.dirname(fpeni)) header = self.eni_header if self.eni_header else "" util.write_file(fpeni, header + self._render_interfaces(network_state)) if self.netrules_path: - netrules = os.path.join(target, self.netrules_path) + netrules = util.target_path(target, self.netrules_path) util.ensure_dir(os.path.dirname(netrules)) util.write_file(netrules, self._render_persistent_net(network_state)) @@ -461,7 +456,7 @@ class Renderer(renderer.Renderer): links_prefix=self.links_path_prefix) def _render_systemd_links(self, target, network_state, links_prefix): - fp_prefix = os.path.join(target, links_prefix) + fp_prefix = util.target_path(target, links_prefix) for f in glob.glob(fp_prefix + "*"): os.unlink(f) for iface in network_state.iter_interfaces(): @@ -482,7 +477,7 @@ class Renderer(renderer.Renderer): def network_state_to_eni(network_state, header=None, render_hwaddress=False): # render the provided network state, return a string of equivalent eni eni_path = 'etc/network/interfaces' - renderer = Renderer({ + renderer = Renderer(config={ 'eni_path': eni_path, 'eni_header': header, 'links_path_prefix': None, @@ -496,4 +491,18 @@ def network_state_to_eni(network_state, header=None, render_hwaddress=False): network_state, render_hwaddress=render_hwaddress) return header + contents + +def available(target=None): + expected = ['ifquery', 'ifup', 'ifdown'] + search = ['/sbin', '/usr/sbin'] + for p in expected: + if not util.which(p, search=search, target=target): + return False + eni = util.target_path(target, 'etc/network/interfaces') + if not os.path.isfile(eni): + return False + + return True + + # vi: ts=4 expandtab |