def test_generate_vpp_config(self):
tmpdir = tempfile.mkdtemp()
config_path = os.path.join(tmpdir, 'startup.conf')
with open(config_path, 'w') as f:
f.write(_INITIAL_VPP_CONFIG)
vpp_exec_path = os.path.join(tmpdir, 'vpp-exec')
utils._VPP_EXEC_FILE = vpp_exec_path
int1 = objects.VppInterface('em1', options="vlan-strip-offload off")
int1.pci_dev = '0000:00:09.0'
int2 = objects.VppInterface('em2')
int2.pci_dev = '0000:00:09.1'
interfaces = [int1, int2]
expected_config = '''
unix {
exec %s
nodaemon
log /tmp/vpp.log
full-coredump
}
api-trace {
on
}
api-segment {
gid vpp
}
dpdk {
dev 0000:00:09.1
uio-driver vfio-pci
dev 0000:00:09.0 {vlan-strip-offload off}
}
''' % vpp_exec_path
self.assertEqual(expected_config,
utils.generate_vpp_config(config_path, interfaces))
def apply(self, cleanup=False, activate=True):
"""Apply the network configuration.
:param cleanup: A boolean which indicates whether any undefined
(existing but not present in the object model) interface
should be disabled and deleted.
:param activate: A boolean which indicates if the config should
be activated by stopping/starting interfaces
NOTE: if cleanup is specified we will deactivate interfaces even
if activate is false
:returns: a dict of the format: filename/data which contains info
for each file that was changed (or would be changed if in --noop
mode).
Note the noop mode is set via the constructor noop boolean
"""
logger.info('applying network configs...')
restart_interfaces = []
restart_vlans = []
restart_bridges = []
restart_linux_bonds = []
restart_linux_teams = []
restart_vpp = False
update_files = {}
all_file_names = []
ivs_uplinks = [] # ivs physical uplinks
ivs_interfaces = [] # ivs internal ports
nfvswitch_interfaces = [] # nfvswitch physical interfaces
nfvswitch_internal_ifaces = [] # nfvswitch internal/management ports
stop_dhclient_interfaces = []
ovs_needs_restart = False
vpp_interfaces = self.vpp_interface_data.values()
for interface_name, iface_data in self.interface_data.items():
route_data = self.route_data.get(interface_name, '')
route6_data = self.route6_data.get(interface_name, '')
interface_path = self.root_dir + ifcfg_config_path(interface_name)
route_path = self.root_dir + route_config_path(interface_name)
route6_path = self.root_dir + route6_config_path(interface_name)
all_file_names.append(interface_path)
all_file_names.append(route_path)
all_file_names.append(route6_path)
if "IVS_BRIDGE" in iface_data:
ivs_uplinks.append(interface_name)
if "NFVSWITCH_BRIDGE" in iface_data:
nfvswitch_interfaces.append(interface_name)
all_file_names.append(route6_path)
if (utils.diff(interface_path, iface_data) or
utils.diff(route_path, route_data) or
utils.diff(route6_path, route6_data)):
restart_interfaces.append(interface_name)
restart_interfaces.extend(self.child_members(interface_name))
update_files[interface_path] = iface_data
update_files[route_path] = route_data
update_files[route6_path] = route6_data
if "BOOTPROTO=dhcp" not in iface_data:
stop_dhclient_interfaces.append(interface_name)
# Openvswitch needs to be restarted when OVSDPDKPort or
# OVSDPDKBond is added
if "OVSDPDK" in iface_data:
ovs_needs_restart = True
else:
logger.info('No changes required for interface: %s' %
interface_name)
for interface_name, iface_data in self.ivsinterface_data.items():
route_data = self.route_data.get(interface_name, '')
route6_data = self.route6_data.get(interface_name, '')
interface_path = self.root_dir + ifcfg_config_path(interface_name)
route_path = self.root_dir + route_config_path(interface_name)
route6_path = self.root_dir + route6_config_path(interface_name)
all_file_names.append(interface_path)
all_file_names.append(route_path)
all_file_names.append(route6_path)
ivs_interfaces.append(interface_name)
if (utils.diff(interface_path, iface_data) or
utils.diff(route_path, route_data)):
restart_interfaces.append(interface_name)
restart_interfaces.extend(self.child_members(interface_name))
update_files[interface_path] = iface_data
update_files[route_path] = route_data
update_files[route6_path] = route6_data
else:
logger.info('No changes required for ivs interface: %s' %
interface_name)
for iface_name, iface_data in self.nfvswitch_intiface_data.items():
route_data = self.route_data.get(iface_name, '')
route6_data = self.route6_data.get(iface_name, '')
iface_path = self.root_dir + ifcfg_config_path(iface_name)
route_path = self.root_dir + route_config_path(iface_name)
route6_path = self.root_dir + route6_config_path(iface_name)
all_file_names.append(iface_path)
all_file_names.append(route_path)
all_file_names.append(route6_path)
nfvswitch_internal_ifaces.append(iface_name)
if (utils.diff(iface_path, iface_data) or
utils.diff(route_path, route_data)):
restart_interfaces.append(iface_name)
restart_interfaces.extend(self.child_members(iface_name))
update_files[iface_path] = iface_data
update_files[route_path] = route_data
update_files[route6_path] = route6_data
else:
logger.info('No changes required for nfvswitch interface: %s' %
iface_name)
for vlan_name, vlan_data in self.vlan_data.items():
route_data = self.route_data.get(vlan_name, '')
route6_data = self.route6_data.get(vlan_name, '')
vlan_path = self.root_dir + ifcfg_config_path(vlan_name)
vlan_route_path = self.root_dir + route_config_path(vlan_name)
vlan_route6_path = self.root_dir + route6_config_path(vlan_name)
all_file_names.append(vlan_path)
all_file_names.append(vlan_route_path)
all_file_names.append(vlan_route6_path)
if (utils.diff(vlan_path, vlan_data) or
utils.diff(vlan_route_path, route_data)):
restart_vlans.append(vlan_name)
restart_vlans.extend(self.child_members(vlan_name))
update_files[vlan_path] = vlan_data
update_files[vlan_route_path] = route_data
update_files[vlan_route6_path] = route6_data
else:
logger.info('No changes required for vlan interface: %s' %
vlan_name)
for bridge_name, bridge_data in self.bridge_data.items():
route_data = self.route_data.get(bridge_name, '')
route6_data = self.route6_data.get(bridge_name, '')
bridge_path = self.root_dir + bridge_config_path(bridge_name)
br_route_path = self.root_dir + route_config_path(bridge_name)
br_route6_path = self.root_dir + route6_config_path(bridge_name)
all_file_names.append(bridge_path)
all_file_names.append(br_route_path)
all_file_names.append(br_route6_path)
if (utils.diff(bridge_path, bridge_data) or
utils.diff(br_route_path, route_data) or
utils.diff(br_route6_path, route6_data)):
restart_bridges.append(bridge_name)
# Avoid duplicate interface being added to the restart list
children = self.child_members(bridge_name)
for child in children:
if child not in restart_interfaces:
restart_interfaces.append(child)
update_files[bridge_path] = bridge_data
update_files[br_route_path] = route_data
update_files[br_route6_path] = route6_data
else:
logger.info('No changes required for bridge: %s' % bridge_name)
for bridge_name, bridge_data in self.linuxbridge_data.items():
route_data = self.route_data.get(bridge_name, '')
route6_data = self.route6_data.get(bridge_name, '')
bridge_path = self.root_dir + bridge_config_path(bridge_name)
br_route_path = self.root_dir + route_config_path(bridge_name)
br_route6_path = self.root_dir + route6_config_path(bridge_name)
all_file_names.append(bridge_path)
all_file_names.append(br_route_path)
all_file_names.append(br_route6_path)
if (utils.diff(bridge_path, bridge_data) or
utils.diff(br_route_path, route_data) or
utils.diff(br_route6_path, route6_data)):
restart_bridges.append(bridge_name)
restart_interfaces.extend(self.child_members(bridge_name))
update_files[bridge_path] = bridge_data
update_files[br_route_path] = route_data
update_files[br_route6_path] = route6_data
else:
logger.info('No changes required for bridge: %s' % bridge_name)
for team_name, team_data in self.linuxteam_data.items():
route_data = self.route_data.get(team_name, '')
route6_data = self.route6_data.get(team_name, '')
team_path = self.root_dir + bridge_config_path(team_name)
team_route_path = self.root_dir + route_config_path(team_name)
team_route6_path = self.root_dir + route6_config_path(team_name)
all_file_names.append(team_path)
all_file_names.append(team_route_path)
all_file_names.append(team_route6_path)
if (utils.diff(team_path, team_data) or
utils.diff(team_route_path, route_data) or
utils.diff(team_route6_path, route6_data)):
restart_linux_teams.append(team_name)
restart_interfaces.extend(self.child_members(team_name))
update_files[team_path] = team_data
update_files[team_route_path] = route_data
update_files[team_route6_path] = route6_data
else:
logger.info('No changes required for linux team: %s' %
team_name)
for bond_name, bond_data in self.linuxbond_data.items():
route_data = self.route_data.get(bond_name, '')
route6_data = self.route6_data.get(bond_name, '')
bond_path = self.root_dir + bridge_config_path(bond_name)
bond_route_path = self.root_dir + route_config_path(bond_name)
bond_route6_path = self.root_dir + route6_config_path(bond_name)
all_file_names.append(bond_path)
all_file_names.append(bond_route_path)
all_file_names.append(bond_route6_path)
if (utils.diff(bond_path, bond_data) or
utils.diff(bond_route_path, route_data) or
utils.diff(bond_route6_path, route6_data)):
restart_linux_bonds.append(bond_name)
restart_interfaces.extend(self.child_members(bond_name))
update_files[bond_path] = bond_data
update_files[bond_route_path] = route_data
update_files[bond_route6_path] = route6_data
else:
logger.info('No changes required for linux bond: %s' %
bond_name)
# Infiniband interfaces are handled similarly to Ethernet interfaces
for interface_name, iface_data in self.ib_interface_data.items():
route_data = self.route_data.get(interface_name, '')
route6_data = self.route6_data.get(interface_name, '')
interface_path = self.root_dir + ifcfg_config_path(interface_name)
route_path = self.root_dir + route_config_path(interface_name)
route6_path = self.root_dir + route6_config_path(interface_name)
all_file_names.append(interface_path)
all_file_names.append(route_path)
all_file_names.append(route6_path)
# TODO(dsneddon) determine if InfiniBand can be used with IVS
if "IVS_BRIDGE" in iface_data:
ivs_uplinks.append(interface_name)
all_file_names.append(route6_path)
if (utils.diff(interface_path, iface_data) or
utils.diff(route_path, route_data) or
utils.diff(route6_path, route6_data)):
restart_interfaces.append(interface_name)
restart_interfaces.extend(self.child_members(interface_name))
update_files[interface_path] = iface_data
update_files[route_path] = route_data
update_files[route6_path] = route6_data
else:
logger.info('No changes required for InfiniBand iface: %s' %
interface_name)
if self.vpp_interface_data:
vpp_path = self.root_dir + vpp_config_path()
vpp_config = utils.generate_vpp_config(vpp_path, vpp_interfaces)
if utils.diff(vpp_path, vpp_config):
restart_vpp = True
update_files[vpp_path] = vpp_config
else:
logger.info('No changes required for VPP')
if cleanup:
for ifcfg_file in glob.iglob(cleanup_pattern()):
if ifcfg_file not in all_file_names:
interface_name = ifcfg_file[len(cleanup_pattern()) - 1:]
if interface_name != 'lo':
logger.info('cleaning up interface: %s'
% interface_name)
self.ifdown(interface_name)
self.remove_config(ifcfg_file)
if activate:
for vlan in restart_vlans:
self.ifdown(vlan)
for interface in restart_interfaces:
self.ifdown(interface)
for linux_bond in restart_linux_bonds:
self.ifdown(linux_bond)
for linux_team in restart_linux_teams:
self.ifdown(linux_team)
for bridge in restart_bridges:
self.ifdown(bridge, iftype='bridge')
for vpp_interface in vpp_interfaces:
self.ifdown(vpp_interface.name)
for oldname, newname in self.renamed_interfaces.items():
self.ifrename(oldname, newname)
# DPDK initialization is done before running os-net-config, to make
# the DPDK ports available when enabled. DPDK Hotplug support is
# supported only in OvS 2.7 version. Until then, OvS needs to be
# restarted after adding a DPDK port. This change will be removed on
# migration to OvS 2.7 where DPDK Hotplug support is available.
if ovs_needs_restart:
msg = "Restart openvswitch"
self.execute(msg, '/usr/bin/systemctl',
'restart', 'openvswitch')
for location, data in update_files.items():
self.write_config(location, data)
if ivs_uplinks or ivs_interfaces:
location = ivs_config_path()
data = self.generate_ivs_config(ivs_uplinks, ivs_interfaces)
self.write_config(location, data)
if nfvswitch_interfaces or nfvswitch_internal_ifaces:
location = nfvswitch_config_path()
data = self.generate_nfvswitch_config(nfvswitch_interfaces,
nfvswitch_internal_ifaces)
self.write_config(location, data)
if activate:
for linux_team in restart_linux_teams:
self.ifup(linux_team)
for bridge in restart_bridges:
self.ifup(bridge, iftype='bridge')
# If dhclient is running and dhcp not set, stop dhclient
for interface in stop_dhclient_interfaces:
logger.debug("Calling stop_dhclient_interfaces() for %s" %
interface)
if not self.noop:
stop_dhclient_process(interface)
for interface in restart_interfaces:
self.ifup(interface)
for linux_bond in restart_linux_bonds:
self.ifup(linux_bond)
for bond in self.bond_primary_ifaces:
self.ovs_appctl('bond/set-active-slave', bond,
self.bond_primary_ifaces[bond])
if ivs_uplinks or ivs_interfaces:
logger.info("Attach to ivs with "
"uplinks: %s, "
"interfaces: %s" %
(ivs_uplinks, ivs_interfaces))
for ivs_uplink in ivs_uplinks:
self.ifup(ivs_uplink)
for ivs_interface in ivs_interfaces:
self.ifup(ivs_interface)
msg = "Restart ivs"
self.execute(msg, '/usr/bin/systemctl',
'restart', 'ivs')
if nfvswitch_interfaces or nfvswitch_internal_ifaces:
logger.info("Attach to nfvswitch with "
"interfaces: %s, "
"internal interfaces: %s" %
(nfvswitch_interfaces, nfvswitch_internal_ifaces))
for nfvswitch_interface in nfvswitch_interfaces:
self.ifup(nfvswitch_interface)
for nfvswitch_internal in nfvswitch_internal_ifaces:
self.ifup(nfvswitch_internal)
msg = "Restart nfvswitch"
self.execute(msg, '/usr/bin/systemctl',
'restart', 'nfvswitch')
for vlan in restart_vlans:
self.ifup(vlan)
if not self.noop:
if restart_vpp:
logger.info('Restarting VPP')
utils.restart_vpp(vpp_interfaces)
if self.vpp_interface_data:
logger.info('Updating VPP mapping')
utils.update_vpp_mapping(vpp_interfaces)
if self.errors:
message = 'Failure(s) occurred when applying configuration'
logger.error(message)
for e in self.errors:
logger.error('stdout: %s, stderr: %s', e.stdout, e.stderr)
raise os_net_config.ConfigurationError(message)
return update_files
def test_generate_vpp_config(self):
tmpdir = tempfile.mkdtemp()
config_path = os.path.join(tmpdir, 'startup.conf')
with open(config_path, 'w') as f:
f.write(_INITIAL_VPP_CONFIG)
vpp_exec_path = os.path.join(tmpdir, 'vpp-exec')
utils._VPP_EXEC_FILE = vpp_exec_path
int1 = objects.VppInterface('em1', options="vlan-strip-offload off")
int1.pci_dev = '0000:00:09.0'
int2 = objects.VppInterface('em2')
int2.pci_dev = '0000:00:09.1'
interfaces = [int1, int2]
bonds = []
expected_config = '''
unix {
exec %s
nodaemon
log /tmp/vpp.log
full-coredump
}
api-trace {
on
}
api-segment {
gid vpp
}
dpdk {
dev 0000:00:09.1
uio-driver vfio-pci
dev 0000:00:09.0 {vlan-strip-offload off}
}
''' % vpp_exec_path
self.assertEqual(expected_config,
utils.generate_vpp_config(config_path, interfaces,
bonds))
bonds = [objects.VppBond('net_bonding0', members=interfaces,
bonding_options='mode=2,xmit_policy=l3')]
expected_config = '''
unix {
exec %s
nodaemon
log /tmp/vpp.log
full-coredump
}
api-trace {
on
}
api-segment {
gid vpp
}
dpdk {
vdev net_bonding0,slave=0000:00:09.0,slave=0000:00:09.1,mode=2,xmit_policy=l3
dev 0000:00:09.1
uio-driver vfio-pci
dev 0000:00:09.0 {vlan-strip-offload off}
}
''' % vpp_exec_path
self.assertEqual(expected_config,
utils.generate_vpp_config(config_path, interfaces,
bonds))