forked from pool/cloud-init
Robert Schweikert
ae005709db
Handle netconfig v2 device configurations (bsc#1171546) OBS-URL: https://build.opensuse.org/request/show/807342 OBS-URL: https://build.opensuse.org/package/show/Cloud:Tools/cloud-init?expand=0&rev=169
152 lines
6.6 KiB
Diff
152 lines
6.6 KiB
Diff
Index: cloudinit/distros/opensuse.py
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===================================================================
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--- cloudinit/distros/opensuse.py.orig
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+++ cloudinit/distros/opensuse.py
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@@ -11,6 +11,7 @@
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from cloudinit import distros
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from cloudinit.distros.parsers.hostname import HostnameConf
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+from cloudinit.net.network_state import mask_to_net_prefix
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from cloudinit import helpers
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from cloudinit import log as logging
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@@ -174,7 +175,137 @@ class Distro(distros.Distro):
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util.write_file(out_fn, str(conf), 0o644)
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def _write_network_config(self, netconfig):
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- return self._supported_write_network_config(netconfig)
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+ net_apply_res = self._supported_write_network_config(netconfig)
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+ # Clobber the route files that were written in RH key-value style
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+ self._write_routes(netconfig)
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+ return net_apply_res
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+
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+ def _write_routes_v1(self, netconfig):
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+ """Write route files, not part of the standard distro interface"""
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+ # Due to the implementation of the sysconfig renderer default routes
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+ # are setup in ifcfg-* files. But this does not work on SLES or
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+ # openSUSE https://bugs.launchpad.net/cloud-init/+bug/1812117
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+ # this is a very hacky way to get around the problem until a real
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+ # solution is found in the sysconfig renderer
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+ device_configs = netconfig.get('config', [])
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+ default_nets = ('::', '0.0.0.0')
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+ for config in device_configs:
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+ if_name = config.get('name')
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+ subnets = config.get('subnets', [])
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+ config_routes = ''
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+ has_default_route = False
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+ for subnet in subnets:
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+ # Render the default gateway if it is present
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+ gateway = subnet.get('gateway')
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+ if gateway:
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+ config_routes += ' '.join(
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+ ['default', gateway, '-', '-\n']
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+ )
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+ has_default_route = True
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+ # Render subnet routes
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+ routes = subnet.get('routes', [])
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+ for route in routes:
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+ dest = route.get('destination') or route.get('network')
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+ if not dest or dest in default_nets:
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+ dest = 'default'
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+ if dest != 'default':
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+ netmask = route.get('netmask')
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+ if netmask:
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+ prefix = mask_to_net_prefix(netmask)
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+ dest += '/' + str(prefix)
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+ if '/' not in dest:
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+ LOG.warning(
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+ 'Skipping route; has no prefix "%s"', dest
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+ )
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+ continue
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+ if dest == 'default' and has_default_route:
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+ LOG.warning(
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+ '%s already has default route, skipping "%s"',
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+ if_name, ' '.join([dest, gateway, '-', '-'])
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+ )
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+ continue
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+ if dest == 'default' and not has_default_route:
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+ has_default_route = True
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+ gateway = route.get('gateway')
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+ if not gateway:
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+ LOG.warning(
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+ 'Missing gateway for "%s", skipping', dest
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+ )
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+ continue
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+ config_routes += ' '.join(
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+ [dest, gateway, '-', '-\n']
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+ )
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+ if config_routes:
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+ route_file = '/etc/sysconfig/network/ifroute-%s' % if_name
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+ util.write_file(route_file, config_routes)
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+
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+ def _render_route_string(self, netconfig_route):
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+ route_to = netconfig_route.get('to', None)
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+ route_via = netconfig_route.get('via', None)
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+ route_metric = netconfig_route.get('metric', None)
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+ route_string = ''
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+
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+ if route_to and route_via:
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+ route_string = ' '.join([route_to, route_via, '-', '-'])
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+ if route_metric:
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+ route_string += ' metric {}\n'.format(route_metric)
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+ else:
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+ route_string += '\n'
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+ else:
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+ LOG.warning('invalid route definition, skipping route')
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+
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+ return route_string
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+
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+ def _write_routes_v2(self, netconfig):
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+ for device_type in netconfig:
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+ if device_type == 'version':
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+ continue
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+
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+ if device_type == 'routes':
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+ # global static routes
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+ config_routes = ''
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+ for route in netconfig['routes']:
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+ config_routes += self._render_route_string(route)
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+ if config_routes:
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+ route_file = '/etc/sysconfig/network/routes'
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+ util.write_file(route_file, config_routes)
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+ else:
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+ devices = netconfig[device_type]
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+ for device_name in devices:
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+ config_routes = ''
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+ device_config = devices[device_name]
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+ try:
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+ gateways = [
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+ v for k, v in device_config.items()
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+ if 'gateway' in k
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+ ]
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+ for gateway in gateways:
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+ config_routes += ' '.join(
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+ ['default', gateway, '-', '-\n']
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+ )
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+ for route in device_config.get('routes', []):
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+ config_routes += self._render_route_string(route)
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+ if config_routes:
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+ route_file = '/etc/sysconfig/network/ifroute-{}'.format(
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+ device_name
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+ )
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+ util.write_file(route_file, config_routes)
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+ except Exception:
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+ # the parser above epxects another level of nesting
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+ # which should be there in case it's properly
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+ # formatted; if not we may get an exception on items()
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+ pass
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+
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+ def _write_routes(self, netconfig):
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+ netconfig_ver = netconfig.get('version')
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+ if netconfig_ver == 1:
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+ self._write_routes_v1(netconfig)
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+ elif netconfig_ver == 2:
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+ self._write_routes_v2(netconfig)
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+ else:
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+ LOG.warning(
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+ 'unsupported or missing netconfig version, not writing routes'
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+ )
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@property
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def preferred_ntp_clients(self):
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