357 lines
13 KiB
Python
Executable File
357 lines
13 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
import json
|
|
import netaddr
|
|
import openstack
|
|
import os
|
|
import subprocess
|
|
|
|
CTLPLANE_NETWORK_NAME = 'ctlplane'
|
|
CONF = json.loads(os.environ['config'])
|
|
|
|
|
|
def _run_command(args, env=None, name=None):
|
|
"""Run the command defined by args and return its output
|
|
|
|
:param args: List of arguments for the command to be run.
|
|
:param env: Dict defining the environment variables. Pass None to use
|
|
the current environment.
|
|
:param name: User-friendly name for the command being run. A value of
|
|
None will cause args[0] to be used.
|
|
"""
|
|
if name is None:
|
|
name = args[0]
|
|
|
|
if env is None:
|
|
env = os.environ
|
|
env = env.copy()
|
|
|
|
# When running a localized python script, we need to tell it that we're
|
|
# using utf-8 for stdout, otherwise it can't tell because of the pipe.
|
|
env['PYTHONIOENCODING'] = 'utf8'
|
|
|
|
try:
|
|
return subprocess.check_output(args,
|
|
stderr=subprocess.STDOUT,
|
|
env=env).decode('utf-8')
|
|
except subprocess.CalledProcessError as ex:
|
|
print('ERROR: %s failed: %s' % (name, ex.output))
|
|
raise
|
|
|
|
|
|
def _ensure_neutron_network(sdk):
|
|
try:
|
|
network = list(sdk.network.networks(name=CTLPLANE_NETWORK_NAME))
|
|
if not network:
|
|
network = sdk.network.create_network(
|
|
name=CTLPLANE_NETWORK_NAME,
|
|
provider_network_type='flat',
|
|
provider_physical_network=CONF['physical_network'],
|
|
mtu=CONF['mtu'])
|
|
print('INFO: Network created %s' % network)
|
|
else:
|
|
network = sdk.network.update_network(
|
|
network[0].id,
|
|
name=CTLPLANE_NETWORK_NAME,
|
|
mtu=CONF['mtu'])
|
|
print('INFO: Network updated %s' % network)
|
|
except Exception:
|
|
print('ERROR: Network create/update failed.')
|
|
raise
|
|
|
|
return network
|
|
|
|
|
|
def _get_nameservers_for_version(servers, ipversion):
|
|
"""Get list of nameservers for an IP version"""
|
|
return [s for s in servers if netaddr.IPAddress(s).version == ipversion]
|
|
|
|
|
|
def _neutron_subnet_create(sdk, network_id, cidr, gateway, host_routes,
|
|
allocation_pools, name, segment_id,
|
|
dns_nameservers):
|
|
try:
|
|
if netaddr.IPNetwork(cidr).version == 6:
|
|
subnet = sdk.network.create_subnet(
|
|
name=name,
|
|
cidr=cidr,
|
|
gateway_ip=gateway,
|
|
enable_dhcp=True,
|
|
ip_version='6',
|
|
ipv6_address_mode=CONF['ipv6_address_mode'],
|
|
ipv6_ra_mode=CONF['ipv6_address_mode'],
|
|
allocation_pools=allocation_pools,
|
|
network_id=network_id,
|
|
segment_id=segment_id,
|
|
dns_nameservers=_get_nameservers_for_version(dns_nameservers,
|
|
6))
|
|
else:
|
|
subnet = sdk.network.create_subnet(
|
|
name=name,
|
|
cidr=cidr,
|
|
gateway_ip=gateway,
|
|
host_routes=host_routes,
|
|
enable_dhcp=True,
|
|
ip_version='4',
|
|
allocation_pools=allocation_pools,
|
|
network_id=network_id,
|
|
segment_id=segment_id,
|
|
dns_nameservers=_get_nameservers_for_version(dns_nameservers,
|
|
4))
|
|
print('INFO: Subnet created %s' % subnet)
|
|
except Exception:
|
|
print('ERROR: Create subnet %s failed.' % name)
|
|
raise
|
|
|
|
return subnet
|
|
|
|
|
|
def _neutron_subnet_update(sdk, subnet_id, cidr, gateway, host_routes,
|
|
allocation_pools, name, dns_nameservers):
|
|
try:
|
|
if netaddr.IPNetwork(cidr).version == 6:
|
|
subnet = sdk.network.update_subnet(
|
|
subnet_id,
|
|
name=name,
|
|
gateway_ip=gateway,
|
|
allocation_pools=allocation_pools,
|
|
dns_nameservers=_get_nameservers_for_version(dns_nameservers,
|
|
6))
|
|
else:
|
|
subnet = sdk.network.update_subnet(
|
|
subnet_id,
|
|
name=name,
|
|
gateway_ip=gateway,
|
|
host_routes=host_routes,
|
|
allocation_pools=allocation_pools,
|
|
dns_nameservers=_get_nameservers_for_version(dns_nameservers,
|
|
4))
|
|
print('INFO: Subnet updated %s' % subnet)
|
|
except Exception:
|
|
print('ERROR: Update of subnet %s failed.' % name)
|
|
raise
|
|
|
|
|
|
def _neutron_add_subnet_segment_association(sdk, subnet_id, segment_id):
|
|
try:
|
|
subnet = sdk.network.update_subnet(subnet_id, segment_id=segment_id)
|
|
print('INFO: Segment association added to Subnet %s' % subnet)
|
|
except Exception:
|
|
print('ERROR: Associationg segment with subnet %s failed.' % subnet_id)
|
|
raise
|
|
|
|
|
|
def _neutron_segment_create(sdk, name, network_id, phynet):
|
|
try:
|
|
segment = sdk.network.create_segment(
|
|
name=name,
|
|
network_id=network_id,
|
|
physical_network=phynet,
|
|
network_type='flat')
|
|
print('INFO: Neutron Segment created %s' % segment)
|
|
except Exception:
|
|
print('ERROR: Neutron Segment %s create failed.' % name)
|
|
raise
|
|
|
|
return segment
|
|
|
|
|
|
def _neutron_segment_update(sdk, segment_id, name):
|
|
try:
|
|
segment = sdk.network.update_segment(segment_id, name=name)
|
|
print('INFO: Neutron Segment updated %s', segment)
|
|
except Exception:
|
|
print('ERROR: Neutron Segment %s update failed.' % name)
|
|
raise
|
|
|
|
|
|
def _ensure_neutron_router(sdk, subnet):
|
|
try:
|
|
router = sdk.network.find_router(name_or_id=subnet.name)
|
|
if router is None:
|
|
sdk.network.create_router(name=subnet.name,
|
|
admin_state_up='true')
|
|
except Exception:
|
|
print('ERROR: Create router for subnet %s failed.' % subnet.name)
|
|
raise
|
|
|
|
|
|
def _add_router_port(sdk, subnet):
|
|
try:
|
|
router = sdk.network.find_router(name_or_id=subnet.name)
|
|
sdk.network.add_interface_to_router(router.id, subnet_id=subnet.id)
|
|
except Exception:
|
|
print('ERROR: Add router port for subnet %s failed.' % subnet.name)
|
|
raise
|
|
|
|
|
|
def _remove_router_port(sdk, subnet):
|
|
try:
|
|
router = sdk.network.find_router(name_or_id=subnet.name)
|
|
if router is None:
|
|
return
|
|
|
|
router_port = next(sdk.network.ports(
|
|
network_id=subnet.network_id,
|
|
device_owner='network:router_interface'))
|
|
sdk.network.remove_interface_from_router(router.id, subnet.id,
|
|
router_port.id)
|
|
except StopIteration:
|
|
# There is no router port
|
|
pass
|
|
except Exception:
|
|
print('ERROR: Delete router %s failed.' % subnet.name)
|
|
raise
|
|
|
|
|
|
def _get_subnet(sdk, cidr, network_id):
|
|
try:
|
|
subnet = list(sdk.network.subnets(cidr=cidr, network_id=network_id))
|
|
except Exception:
|
|
print('ERROR: Get subnet with cidr %s failed.' % cidr)
|
|
raise
|
|
|
|
return False if not subnet else subnet[0]
|
|
|
|
|
|
def _get_segment(sdk, phy, network_id):
|
|
try:
|
|
segment = list(sdk.network.segments(physical_network=phy,
|
|
network_id=network_id))
|
|
except Exception:
|
|
print('ERROR: Get segment for physical_network %s on network_id %s '
|
|
'failed.' % (phy, network_id))
|
|
raise
|
|
|
|
return False if not segment else segment[0]
|
|
|
|
|
|
def _set_network_tags(sdk, network, tags):
|
|
try:
|
|
sdk.network.set_tags(network, tags=tags)
|
|
print('INFO: Tags %s added to network %s.' % (tags, network.name))
|
|
except Exception:
|
|
print('ERROR: Setting tags %s on network %s failed.' %
|
|
(tags, network.name))
|
|
raise
|
|
|
|
|
|
def _local_neutron_segments_and_subnets(sdk, ctlplane_id, net_cidrs):
|
|
"""Create's and updates the ctlplane subnet on the segment that is local to
|
|
the underclud.
|
|
"""
|
|
s = CONF['subnets'][CONF['local_subnet']]
|
|
# If the subnet is IPv6 we need to start a router so that router
|
|
# advertisements are sent out for stateless IP addressing to work.
|
|
# NOTE(hjensas): Don't do this for routed networks. The router will
|
|
# use the address defined as gateway for the subnet, and in a
|
|
# deployment with routed networks this will conflict with the router
|
|
# in the infrastructure. The router in the infrastructure must be
|
|
# configured to send router advertisements.
|
|
enable_ipv6_router = (CONF['enable_routed_networks'] is False
|
|
and netaddr.IPNetwork(s['NetworkCidr']).version == 6)
|
|
name = CONF['local_subnet']
|
|
subnet = _get_subnet(sdk, s['NetworkCidr'], ctlplane_id)
|
|
segment = _get_segment(sdk, CONF['physical_network'], ctlplane_id)
|
|
|
|
if subnet:
|
|
if CONF['enable_routed_networks'] and subnet.segment_id is None:
|
|
# The subnet exists and does not have a segment association. Since
|
|
# routed networks is enabled in the configuration, we need to
|
|
# migrate the existing non-routed networks subnet to a routed
|
|
# networks subnet by associating the network segment_id with the
|
|
# subnet.
|
|
_neutron_add_subnet_segment_association(sdk, subnet.id, segment.id)
|
|
|
|
# The router interface must be removed prior to updating the subnet
|
|
# in case the gateway_ip of the subnet changed.
|
|
if enable_ipv6_router:
|
|
_remove_router_port(sdk, subnet)
|
|
|
|
_neutron_subnet_update(
|
|
sdk, subnet.id, s['NetworkCidr'], s['NetworkGateway'],
|
|
s['HostRoutes'], s.get('AllocationPools'), name,
|
|
s['DnsNameServers'])
|
|
else:
|
|
if CONF['enable_routed_networks']:
|
|
segment_id = segment.id
|
|
else:
|
|
segment_id = None
|
|
|
|
subnet = _neutron_subnet_create(
|
|
sdk, ctlplane_id, s['NetworkCidr'], s['NetworkGateway'],
|
|
s['HostRoutes'], s.get('AllocationPools'), name, segment_id,
|
|
s['DnsNameServers'])
|
|
|
|
if enable_ipv6_router:
|
|
_ensure_neutron_router(sdk, subnet)
|
|
_add_router_port(sdk, subnet)
|
|
|
|
net_cidrs.append(s['NetworkCidr'])
|
|
|
|
return net_cidrs
|
|
|
|
|
|
def _remote_neutron_segments_and_subnets(sdk, ctlplane_id, net_cidrs):
|
|
"""Create's and updates the ctlplane subnet(s) on segments that is
|
|
not local to the undercloud.
|
|
"""
|
|
|
|
for name in CONF['subnets']:
|
|
s = CONF['subnets'][name]
|
|
if name == CONF['local_subnet']:
|
|
continue
|
|
phynet = name
|
|
subnet = _get_subnet(sdk, s['NetworkCidr'], ctlplane_id)
|
|
segment = _get_segment(sdk, phynet, ctlplane_id)
|
|
if subnet:
|
|
_neutron_segment_update(sdk, subnet.segment_id, name)
|
|
_neutron_subnet_update(
|
|
sdk, subnet.id, s['NetworkCidr'], s['NetworkGateway'],
|
|
s['HostRoutes'], s.get('AllocationPools'), name,
|
|
s['DnsNameServers'])
|
|
else:
|
|
if segment:
|
|
_neutron_segment_update(sdk, segment.id, name)
|
|
else:
|
|
segment = _neutron_segment_create(sdk, name, ctlplane_id,
|
|
phynet)
|
|
subnet = _neutron_subnet_create(
|
|
sdk, ctlplane_id, s['NetworkCidr'], s['NetworkGateway'],
|
|
s['HostRoutes'], s.get('AllocationPools'), name, segment.id,
|
|
s['DnsNameServers'])
|
|
net_cidrs.append(s['NetworkCidr'])
|
|
|
|
return net_cidrs
|
|
|
|
|
|
if 'true' not in _run_command(['hiera', 'neutron_api_enabled'],
|
|
name='hiera').lower():
|
|
print('WARNING: UndercloudCtlplaneNetworkDeployment : The Neutron API '
|
|
'is disabled. The ctlplane network cannot be configured.')
|
|
else:
|
|
sdk = openstack.connect(CONF['cloud_name'])
|
|
|
|
network = _ensure_neutron_network(sdk)
|
|
net_cidrs = []
|
|
# Always create/update the local_subnet first to ensure it is can have the
|
|
# subnet associated with a segment prior to creating the remote subnets if
|
|
# the user enabled routed networks support on undercloud update.
|
|
net_cidrs = _local_neutron_segments_and_subnets(sdk, network.id, net_cidrs)
|
|
if CONF['enable_routed_networks']:
|
|
net_cidrs = _remote_neutron_segments_and_subnets(sdk, network.id,
|
|
net_cidrs)
|
|
# Set the cidrs for all ctlplane subnets as tags on the ctlplane network.
|
|
# These tags are used for the NetCidrMapValue in tripleo-heat-templates.
|
|
_set_network_tags(sdk, network, net_cidrs)
|