Files
magnum/magnum/common/neutron.py
Lingxian Kong d2f36a2ed1 Delete loadbalancers and floatingips for service and ingress
This patch makes the regex more broad to cover both services and ingresses that
create load balancers in octavia. In cloud-provider-openstack repo, the load
balancer description is defined in:

- f056677572/pkg/cloudprovider/providers/openstack/openstack_loadbalancer.go (L459)
- f056677572/pkg/ingress/controller/openstack/octavia.go (L316)

The floating ip description is defined in:

- f056677572/pkg/cloudprovider/providers/openstack/openstack_loadbalancer.go (L1063)
- f056677572/pkg/ingress/controller/openstack/neutron.go (L72)

Change-Id: I7ce38e38de0d66fac340e287ce520de4c4bf679d
Story: 2004839
2019-02-05 10:12:35 +13:00

77 lines
2.6 KiB
Python

# Copyright 2019 Catalyst Cloud Ltd.
#
# 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 re
from oslo_log import log as logging
from magnum.common import clients
from magnum.common import exception
LOG = logging.getLogger(__name__)
def delete_floatingip(context, fix_port_id, cluster):
"""Deletes the floating IP associated with the fix_port_id.
Only delete the floating IP if it's created and associated with the
the load balancers that corresponding to the services and ingresses in
Kubernetes cluster.
This method only works with the Kubernetes cluster with
cloud-provider-openstack controller manager deployed.
"""
pattern = (r'Floating IP for Kubernetes .+ from cluster %s$' %
cluster.uuid)
try:
n_client = clients.OpenStackClients(context).neutron()
fips = n_client.list_floatingips(port_id=fix_port_id)
if len(fips["floatingips"]) == 0:
return
# Liberty Neutron doesn't support description field, although Liberty
# is no longer supported, we write good code here.
desc = fips["floatingips"][0].get("description", "")
id = fips["floatingips"][0]["id"]
if re.match(pattern, desc):
LOG.debug("Deleting floating ip %s for cluster %s", id,
cluster.uuid)
n_client.delete_floatingip(id)
except Exception as e:
raise exception.PreDeletionFailed(cluster_uuid=cluster.uuid,
msg=str(e))
def get_network_id(context, network_name):
nets = []
n_client = clients.OpenStackClients(context).neutron()
ext_filter = {'router:external': True}
networks = n_client.list_networks(**ext_filter)
for net in networks.get('networks'):
if net.get('name') == network_name:
nets.append(net)
if len(nets) == 0:
raise exception.ExternalNetworkNotFound(network=network_name)
if len(nets) > 1:
raise exception.Conflict(
"Multiple networks exist with same name '%s'. Please use the "
"network ID instead." % network_name
)
return nets[0]["id"]