def _del_broken_network(network, netAttr, configurator):
"""
Adapts the network information of broken networks so that they can be
deleted via _del_network.
"""
_netinfo = CachingNetInfo()
_netinfo.networks[network] = netAttr
_netinfo.networks[network]['dhcpv4'] = False
if _netinfo.networks[network]['bridged']:
try:
nets = configurator.runningConfig.networks
except AttributeError:
nets = {} # ifcfg does not need net definitions
_netinfo.networks[network]['ports'] = _persistence.configuredPorts(
nets, network)
elif not os.path.exists('/sys/class/net/' + netAttr['iface']):
# Bridgeless broken network without underlying device
libvirt.removeNetwork(network)
if config.get('vars', 'net_persistence') == 'unified':
configurator.runningConfig.removeNetwork(network)
return
canonicalize_networks({network: _netinfo.networks[network]})
_del_network(network, configurator, bypass_validation=True,
_netinfo=_netinfo)
def _del_broken_network(network, netAttr, configurator):
"""
Adapts the network information of broken networks so that they can be
deleted via _del_network.
"""
_netinfo = CachingNetInfo()
_netinfo.networks[network] = netAttr
_netinfo.networks[network]['dhcpv4'] = False
if _netinfo.networks[network]['bridged']:
try:
nets = configurator.runningConfig.networks
except AttributeError:
nets = {} # ifcfg does not need net definitions
_netinfo.networks[network]['ports'] = _persistence.configuredPorts(
nets, network)
elif not os.path.exists('/sys/class/net/' + netAttr['iface']):
# Bridgeless broken network without underlying device
libvirt.removeNetwork(network)
if config.get('vars', 'net_persistence') == 'unified':
configurator.runningConfig.removeNetwork(network)
return
canonicalize_networks({network: _netinfo.networks[network]})
_del_network(network, configurator, bypass_validation=True,
_netinfo=_netinfo)
def _destroy_ovs_libvirt_nets(initial_config, running_config):
log('Removing OVS and libvirt networks: %s %s' %
(initial_config, running_config))
for libvirt_ovs_nets in (iter_ovs_nets(running_config.networks),
iter_ovs_nets(initial_config.networks)):
for net, attrs in libvirt_ovs_nets:
with suppress(libvirtError): # network not found
libvirt.removeNetwork(net)
destroy_ovs_bridge()
def _destroy_ovs_libvirt_nets(initial_config, running_config):
log('Removing OVS and libvirt networks: %s %s' % (initial_config,
running_config))
for libvirt_ovs_nets in (iter_ovs_nets(running_config.networks),
iter_ovs_nets(initial_config.networks)):
for net, attrs in libvirt_ovs_nets:
with suppress(libvirtError): # network not found
libvirt.removeNetwork(net)
destroy_ovs_bridge()
def _remove_ovs_network(net, running_config, nets_by_nic):
commands = []
net_conf = running_config.networks.get(net)
if 'vlan' in net_conf:
commands.extend(['--', 'del-br', net])
if 'nic' in net_conf:
commands.extend(_del_nic_port(net, net_conf.get('nic'), nets_by_nic))
running_config.removeNetwork(net)
with suppress():
libvirt.removeNetwork(net)
return commands
def restoreAtomicNetworkBackup(self):
logging.info("Rolling back logical networks configuration " "(restoring atomic logical networks backup)")
for network, content in six.iteritems(self._networksBackups):
# Networks with content None should be removed.
# Networks with real content should be recreated.
# To avoid libvirt errors during recreation we need
# to remove the old network first
try:
libvirt.removeNetwork(network)
except libvirtError as e:
if e.get_error_code() == VIR_ERR_NO_NETWORK:
pass
if content:
libvirt.createNetwork(content)
logging.info("Restored %s", network)
def restoreAtomicNetworkBackup(self):
logging.info("Rolling back logical networks configuration "
"(restoring atomic logical networks backup)")
for network, content in six.iteritems(self._networksBackups):
# Networks with content None should be removed.
# Networks with real content should be recreated.
# To avoid libvirt errors during recreation we need
# to remove the old network first
try:
libvirt.removeNetwork(network)
except libvirtError as e:
if e.get_error_code() == VIR_ERR_NO_NETWORK:
pass
if content:
libvirt.createNetwork(content)
logging.info('Restored %s', network)
def removeLibvirtNetwork(self, network):
libvirt.removeNetwork(network)
def removeLibvirtNetwork(self, network, skipBackup=False):
if not skipBackup:
self._networkBackup(network)
libvirt.removeNetwork(network)
def removeLibvirtNetwork(self, network, skipBackup=False):
if not skipBackup:
self._networkBackup(network)
libvirt.removeNetwork(network)
def remove_libvirt_nets(libvirt_remove):
for net in libvirt_remove:
with suppress(libvirtError):
libvirt.removeNetwork(net)
def remove_libvirt_nets(libvirt_remove):
for net in libvirt_remove:
with suppress(libvirtError):
libvirt.removeNetwork(net)
