def _copy_persistent_over_running_config():
pconfig = PersistentConfig()
rconfig = RunningConfig()
rconfig.delete()
rconfig.networks = pconfig.networks
rconfig.bonds = pconfig.bonds
rconfig.save()
def _restore_sriov_config():
persistent_config = PersistentConfig()
current_sriov_pci_devs = sriov.list_sriov_pci_devices()
desired_sriov_pci_devs = {
sriov.devname2pciaddr(devname)
for devname, devattrs in six.viewitems(persistent_config.devices)
if 'sriov' in devattrs
}
non_persisted_devs = current_sriov_pci_devs - desired_sriov_pci_devs
if non_persisted_devs:
logging.info(
'Non persisted SRIOV devices found: %s', non_persisted_devs
)
missing_current_devs = desired_sriov_pci_devs - current_sriov_pci_devs
if missing_current_devs:
logging.error(
'Persisted SRIOV devices could not be found: %s',
missing_current_devs,
)
for sriov_devpci in current_sriov_pci_devs & desired_sriov_pci_devs:
devname = sriov.pciaddr2devname(sriov_devpci)
numvfs = persistent_config.devices[devname]['sriov']['numvfs']
try:
change_numvfs(sriov_devpci, numvfs, devname)
except Exception:
logging.exception(
'Restoring VF configuration for device %s failed. '
'Persisted nets built on this device will fail to restore.',
devname,
)
def unified_restoration():
"""
Builds a setupNetworks command from the persistent configuration to set it
as running configuration.
"""
networkmanager.init()
persistent_config = PersistentConfig()
available_config = _filter_available(persistent_config)
_verify_all_devices_are_up(list(_owned_ifcfg_files()))
_wait_for_for_all_devices_up(available_config.networks.keys() +
available_config.bonds.keys())
if ipv6_supported():
_restore_disable_ipv6()
classified_conf = _classify_nets_bonds_config(available_config)
setup_nets, setup_bonds, remove_nets, remove_bonds = classified_conf
logging.info('Remove networks (%s) and bonds (%s).', remove_nets,
remove_bonds)
_greedy_setup_bonds(remove_bonds)
_greedy_setup_nets(remove_nets)
_restore_non_vdsm_net_devices()
_convert_to_blocking_dhcp(setup_nets)
logging.info('Setup networks (%s) and bonds (%s).', setup_nets,
setup_bonds)
_greedy_setup_bonds(setup_bonds)
_greedy_setup_nets(setup_nets)
def upgrade():
rconfig = RunningConfig()
pconfig = PersistentConfig()
libvirt_networks = libvirtnetwork.networks()
_upgrade_volatile_running_config(rconfig)
if rconfig.config_exists() or pconfig.config_exists():
_upgrade_unified_configuration(rconfig)
_upgrade_unified_configuration(pconfig)
else:
# In case unified config has not existed before, it is assumed that
# the networks existance have been persisted in libvirt db.
vdsmnets = libvirt_vdsm_nets(libvirt_networks)
_create_unified_configuration(rconfig, NetInfo(netinfo(vdsmnets)))
_cleanup_libvirt_networks(libvirt_networks)
def upgrade():
rconfig = RunningConfig()
pconfig = PersistentConfig()
libvirt_networks = libvirtnetwork.networks()
_upgrade_volatile_running_config(rconfig)
if rconfig.config_exists() or pconfig.config_exists():
_upgrade_unified_configuration(rconfig)
_upgrade_unified_configuration(pconfig)
else:
# In case unified config has not existed before, it is assumed that
# the networks existance have been persisted in libvirt db.
vdsmnets = libvirt_vdsm_nets(libvirt_networks)
_create_unified_configuration(rconfig, NetInfo(netinfo(vdsmnets)))
_cleanup_libvirt_networks(libvirt_networks)
def _get_unified_persistence_ifcfg():
"""generate the set of ifcfg files that result of the current unified
persistent networks"""
persistent_config = PersistentConfig()
if not persistent_config:
return set()
IFCFG_PATH = NET_CONF_PREF + '%s'
RULE_PATH = os.path.join(NET_CONF_DIR, 'rule-%s')
ROUTE_PATH = os.path.join(NET_CONF_DIR, 'route-%s')
ifcfgs = set()
for bonding, bonding_attr in persistent_config.bonds.iteritems():
bond_nics = set(bonding_attr.get('nics', []))
ifcfgs.add(IFCFG_PATH % bonding)
for nic in bond_nics:
ifcfgs.add(IFCFG_PATH % nic)
for network, network_attr in persistent_config.networks.iteritems():
top_level_device = None
nic = network_attr.get('nic')
if nic:
ifcfgs.add(IFCFG_PATH % nic)
top_level_device = nic
network_bonding = network_attr.get('bonding', None)
if network_bonding:
top_level_device = network_bonding
vlan_id = network_attr.get('vlan')
if vlan_id is not None:
underlying_device = network_bonding or network_attr.get('nic', '')
vlan_device = '.'.join([underlying_device, str(vlan_id)])
top_level_device = vlan_device
ifcfgs.add(IFCFG_PATH % vlan_device)
if utils.tobool(network_attr.get('bridged', True)):
ifcfgs.add(IFCFG_PATH % network)
top_level_device = network
ifcfgs.add(RULE_PATH % top_level_device)
ifcfgs.add(ROUTE_PATH % top_level_device)
return ifcfgs
def unified_restoration():
"""
Builds a setupNetworks command from the persistent configuration to set it
as running configuration.
"""
persistent_config = PersistentConfig()
available_config = _filter_available(persistent_config)
classified_conf = _classify_nets_bonds_config(available_config)
setup_nets, setup_bonds, remove_nets, remove_bonds = classified_conf
logging.info('Remove networks (%s) and bonds (%s).', remove_nets,
remove_bonds)
_greedy_setup_bonds(remove_bonds)
_greedy_setup_nets(remove_nets)
_convert_to_blocking_dhcp(setup_nets)
logging.info('Setup networks (%s) and bonds (%s).', setup_nets,
setup_bonds)
_greedy_setup_bonds(setup_bonds)
_greedy_setup_nets(setup_nets)
