File cloud-init-write-routes.patch of Package cloud-init.17808
Index: cloudinit/distros/opensuse.py
===================================================================
--- cloudinit/distros/opensuse.py.orig
+++ cloudinit/distros/opensuse.py
@@ -11,6 +11,7 @@
from cloudinit import distros
from cloudinit.distros.parsers.hostname import HostnameConf
+from cloudinit.net.network_state import mask_to_net_prefix
from cloudinit import helpers
from cloudinit import log as logging
@@ -174,7 +175,147 @@ class Distro(distros.Distro):
util.write_file(out_fn, str(conf), 0o644)
def _write_network_config(self, netconfig):
- return self._supported_write_network_config(netconfig)
+ net_apply_res = self._supported_write_network_config(netconfig)
+ # Clobber the route files that were written in RH key-value style
+ self._write_routes(netconfig)
+ return net_apply_res
+
+ def _write_routes_v1(self, netconfig):
+ """Write route files, not part of the standard distro interface"""
+ # Due to the implementation of the sysconfig renderer default routes
+ # are setup in ifcfg-* files. But this does not work on SLES or
+ # openSUSE https://bugs.launchpad.net/cloud-init/+bug/1812117
+ # this is a very hacky way to get around the problem until a real
+ # solution is found in the sysconfig renderer
+ device_configs = netconfig.get('config', [])
+ default_nets = ('::', '0.0.0.0')
+ for config in device_configs:
+ if_name = config.get('name')
+ subnets = config.get('subnets', [])
+ config_routes = ''
+ has_default_route = False
+ seen_default_gateway = None
+ for subnet in subnets:
+ # Render the default gateway if it is present
+ gateway = subnet.get('gateway')
+ if gateway:
+ config_routes += ' '.join(
+ ['default', gateway, '-', '-\n']
+ )
+ has_default_route = True
+ if not seen_default_gateway:
+ seen_default_gateway = gateway
+ # Render subnet routes
+ routes = subnet.get('routes', [])
+ for route in routes:
+ dest = route.get('destination') or route.get('network')
+ if not dest or dest in default_nets:
+ dest = 'default'
+ if not has_default_route:
+ has_default_route = True
+ if dest != 'default':
+ netmask = route.get('netmask')
+ if netmask:
+ prefix = mask_to_net_prefix(netmask)
+ dest += '/' + str(prefix)
+ if '/' not in dest:
+ LOG.warning(
+ 'Skipping route; has no prefix "%s"', dest
+ )
+ continue
+ gateway = route.get('gateway')
+ if not gateway:
+ LOG.warning(
+ 'Missing gateway for "%s", skipping', dest
+ )
+ continue
+ if (
+ dest == 'default' and
+ has_default_route and
+ gateway == seen_default_gateway
+ ):
+ dest_info = dest
+ if gateway:
+ dest_info = ' '.join([dest, gateway, '-', '-'])
+ LOG.warning(
+ '%s already has default route, skipping "%s"',
+ if_name, dest_info
+ )
+ continue
+ config_routes += ' '.join(
+ [dest, gateway, '-', '-\n']
+ )
+ if config_routes:
+ route_file = '/etc/sysconfig/network/ifroute-%s' % if_name
+ util.write_file(route_file, config_routes)
+
+ def _render_route_string(self, netconfig_route):
+ route_to = netconfig_route.get('to', None)
+ route_via = netconfig_route.get('via', None)
+ route_metric = netconfig_route.get('metric', None)
+ route_string = ''
+
+ if route_to and route_via:
+ route_string = ' '.join([route_to, route_via, '-', '-'])
+ if route_metric:
+ route_string += ' metric {}\n'.format(route_metric)
+ else:
+ route_string += '\n'
+ else:
+ LOG.warning('invalid route definition, skipping route')
+
+ return route_string
+
+ def _write_routes_v2(self, netconfig):
+ for device_type in netconfig:
+ if device_type == 'version':
+ continue
+
+ if device_type == 'routes':
+ # global static routes
+ config_routes = ''
+ for route in netconfig['routes']:
+ config_routes += self._render_route_string(route)
+ if config_routes:
+ route_file = '/etc/sysconfig/network/routes'
+ util.write_file(route_file, config_routes)
+ else:
+ devices = netconfig[device_type]
+ for device_name in devices:
+ config_routes = ''
+ device_config = devices[device_name]
+ try:
+ gateways = [
+ v for k, v in device_config.items()
+ if 'gateway' in k
+ ]
+ for gateway in gateways:
+ config_routes += ' '.join(
+ ['default', gateway, '-', '-\n']
+ )
+ for route in device_config.get('routes', []):
+ config_routes += self._render_route_string(route)
+ if config_routes:
+ route_file = '/etc/sysconfig/network/ifroute-{}'.format(
+ device_name
+ )
+ util.write_file(route_file, config_routes)
+ except Exception:
+ # the parser above epxects another level of nesting
+ # which should be there in case it's properly
+ # formatted; if not we may get an exception on items()
+ pass
+
+ def _write_routes(self, netconfig):
+ netconfig_ver = netconfig.get('version')
+ if netconfig_ver == 1:
+ self._write_routes_v1(netconfig)
+ elif netconfig_ver == 2:
+ self._write_routes_v2(netconfig)
+ else:
+ LOG.warning(
+ 'unsupported or missing netconfig version, not writing routes'
+ )
@property
def preferred_ntp_clients(self):
