diff options
Diffstat (limited to 'cloudinit/net/netplan.py')
| -rw-r--r-- | cloudinit/net/netplan.py | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/cloudinit/net/netplan.py b/cloudinit/net/netplan.py index 7444ae33..825fe831 100644 --- a/cloudinit/net/netplan.py +++ b/cloudinit/net/netplan.py @@ -10,6 +10,21 @@ from cloudinit import log as logging from cloudinit import util from cloudinit.net import SYS_CLASS_NET, get_devicelist +KNOWN_SNAPD_CONFIG = b"""\ +# This is the initial network config. +# It can be overwritten by cloud-init or console-conf. +network: + version: 2 + ethernets: + all-en: + match: + name: "en*" + dhcp4: true + all-eth: + match: + name: "eth*" + dhcp4: true +""" LOG = logging.getLogger(__name__) NET_CONFIG_TO_V2 = { @@ -154,6 +169,28 @@ def _extract_bond_slaves_by_name(interfaces, entry, bond_master): entry.update({'interfaces': bond_slave_names}) +def _clean_default(target=None): + # clean out any known default files and derived files in target + # LP: #1675576 + tpath = util.target_path(target, "etc/netplan/00-snapd-config.yaml") + if not os.path.isfile(tpath): + return + content = util.load_file(tpath, decode=False) + if content != KNOWN_SNAPD_CONFIG: + return + + derived = [util.target_path(target, f) for f in ( + 'run/systemd/network/10-netplan-all-en.network', + 'run/systemd/network/10-netplan-all-eth.network', + 'run/systemd/generator/netplan.stamp')] + existing = [f for f in derived if os.path.isfile(f)] + LOG.debug("removing known config '%s' and derived existing files: %s", + tpath, existing) + + for f in [tpath] + existing: + os.unlink(f) + + class Renderer(renderer.Renderer): """Renders network information in a /etc/netplan/network.yaml format.""" @@ -166,6 +203,7 @@ class Renderer(renderer.Renderer): 'etc/netplan/50-cloud-init.yaml') self.netplan_header = config.get('netplan_header', None) self._postcmds = config.get('postcmds', False) + self.clean_default = config.get('clean_default', True) def render_network_state(self, target, network_state): # check network state for version @@ -182,6 +220,8 @@ class Renderer(renderer.Renderer): header += "\n" util.write_file(fpnplan, header + content) + if self.clean_default: + _clean_default(target=target) self._netplan_generate(run=self._postcmds) self._net_setup_link(run=self._postcmds) |