A set of Neutron drivers for the VMware NSX.
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# Copyright 2015 VMware, Inc. All rights reserved.
#
# 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.
from neutron.db import l3_db
from neutron_lib.callbacks import registry
from neutron_lib import exceptions
from oslo_log import log as logging
from oslo_utils import uuidutils
from vmware_nsx.common import locking
from vmware_nsx.common import nsxv_constants
from vmware_nsx.db import nsxv_db
from vmware_nsx.db import nsxv_models
from vmware_nsx.plugins.nsx_v.vshield.common import constants as vcns_const
from vmware_nsx.plugins.nsx_v.vshield import edge_utils
from vmware_nsx.shell.admin.plugins.common import constants
from vmware_nsx.shell.admin.plugins.common import formatters
import vmware_nsx.shell.admin.plugins.common.utils as admin_utils
import vmware_nsx.shell.admin.plugins.nsxv.resources.utils as utils
import vmware_nsx.shell.resources as shell
LOG = logging.getLogger(__name__)
nsxv = utils.get_nsxv_client()
_uuid = uuidutils.generate_uuid
def get_nsxv_backup_edges(scope="all"):
edges = utils.get_nsxv_backend_edges()
backup_edges = []
edgeapi = utils.NeutronDbClient()
for edge in edges:
if edge['name'].startswith("backup-"):
# Make sure it is really a backup edge
edge_vnic_binds = nsxv_db.get_edge_vnic_bindings_by_edge(
edgeapi.context.session, edge['id'])
if scope != "all":
# Make sure the backup edge exists in neutron
# Return backup edges existing in both neutron and backend
# when scope != all
edge_in_neutron = nsxv_db.get_nsxv_router_binding_by_edge(
edgeapi.context.session, edge['id'])
if not edge_vnic_binds and edge_in_neutron:
extend_edge_info(edge)
backup_edges.append(edge)
else:
if not edge_vnic_binds:
extend_edge_info(edge)
backup_edges.append(edge)
return backup_edges
def extend_edge_info(edge):
"""Add information from the nsxv-db, if available"""
edgeapi = utils.NeutronDbClient()
rtr_binding = nsxv_db.get_nsxv_router_binding_by_edge(
edgeapi.context.session, edge['id'])
if rtr_binding:
edge['availability_zone'] = rtr_binding['availability_zone']
edge['db_status'] = rtr_binding['status']
@admin_utils.output_header
def nsx_list_backup_edges(resource, event, trigger, **kwargs):
"""List backup edges"""
backup_edges = get_nsxv_backup_edges()
LOG.info(formatters.output_formatter(
constants.BACKUP_EDGES, backup_edges,
['id', 'name', 'size', 'type', 'availability_zone', 'db_status']))
def _delete_backup_from_neutron_db(edge_id, router_id):
# Remove bindings from Neutron DB
edgeapi = utils.NeutronDbClient()
nsxv_db.delete_nsxv_router_binding(
edgeapi.context.session, router_id)
if edge_id:
nsxv_db.clean_edge_vnic_binding(edgeapi.context.session, edge_id)
def _delete_edge_from_nsx_and_neutron(edge_id, router_id):
try:
with locking.LockManager.get_lock(edge_id):
# Delete from NSXv backend
nsxv.delete_edge(edge_id)
# Remove bindings from Neutron DB
_delete_backup_from_neutron_db(edge_id, router_id)
return True
except Exception as expt:
LOG.error("%s", str(expt))
return False
def _nsx_delete_backup_edge(edge_id, all_backup_edges):
"""Delete a specific backup edge"""
try:
edge_result = nsxv.get_edge(edge_id)
except exceptions.NeutronException as x:
LOG.error("%s", str(x))
else:
# edge_result[0] is response status code
# edge_result[1] is response body
edge = edge_result[1]
backup_edges = [e['id'] for e in all_backup_edges]
if (not edge['name'].startswith('backup-') or
edge['id'] not in backup_edges):
LOG.error(
'Edge: %s is not a backup edge; aborting delete',
edge_id)
else:
return _delete_edge_from_nsx_and_neutron(edge_id, edge['name'])
def nsx_clean_backup_edge(resource, event, trigger, **kwargs):
"""Delete backup edge"""
errmsg = ("Need to specify edge-id property. Add --property "
"edge-id=<edge-id>")
if not kwargs.get('property'):
LOG.error("%s", errmsg)
return
properties = admin_utils.parse_multi_keyval_opt(kwargs['property'])
edge_id = properties.get('edge-id')
if not edge_id:
LOG.error("%s", errmsg)
return
if not kwargs.get('force'):
#ask for the user confirmation
confirm = admin_utils.query_yes_no(
"Do you want to delete edge: %s" % edge_id, default="no")
if not confirm:
LOG.info("Backup edge deletion aborted by user")
return
# delete the backup edge
_nsx_delete_backup_edge(edge_id, get_nsxv_backup_edges())
def nsx_clean_all_backup_edges(resource, event, trigger, **kwargs):
"""Delete all backup edges"""
scope = "all"
if kwargs.get('property'):
properties = admin_utils.parse_multi_keyval_opt(kwargs['property'])
scope = properties.get("scope", "all")
if scope not in ["neutron", "all"]:
LOG.error("Need to specify the scope in ['neutron', 'all']")
return
backup_edges = get_nsxv_backup_edges(scope=scope)
if not kwargs.get('force'):
#ask for the user confirmation
confirm = admin_utils.query_yes_no(
"Do you want to delete %s backup edges?" % len(backup_edges),
default="no")
if not confirm:
LOG.info("Backup edges deletion aborted by user")
return
deleted_cnt = 0
for edge in backup_edges:
# delete the backup edge
if _nsx_delete_backup_edge(edge['id'], backup_edges):
deleted_cnt = deleted_cnt + 1
LOG.info('Done Deleting %s backup edges', deleted_cnt)
@admin_utils.output_header
def neutron_clean_backup_edge(resource, event, trigger, **kwargs):
"""Delete a backup edge from the neutron, and backend by it's name
The name of the backup edge is the router-id column in the BD table
nsxv_router_bindings, and it is also printed by list-mismatches
"""
errmsg = ("Need to specify router-id property. Add --property "
"router-id=<router-id>")
if not kwargs.get('property'):
LOG.error("%s", errmsg)
return
properties = admin_utils.parse_multi_keyval_opt(kwargs['property'])
router_id = properties.get('router-id')
if not router_id:
LOG.error("%s", errmsg)
return
# look for the router-binding entry
edgeapi = utils.NeutronDbClient()
rtr_binding = nsxv_db.get_nsxv_router_binding(
edgeapi.context.session, router_id)
if not rtr_binding:
LOG.error('Backup %s was not found in DB', router_id)
return
edge_id = rtr_binding['edge_id']
if edge_id:
# delete from backend too
_delete_edge_from_nsx_and_neutron(edge_id, router_id)
else:
# delete only from DB
_delete_backup_from_neutron_db(None, router_id)
@admin_utils.output_header
def nsx_list_name_mismatches(resource, event, trigger, **kwargs):
edges = utils.get_nsxv_backend_edges()
plugin_nsx_mismatch = []
backend_edge_ids = []
edgeapi = utils.NeutronDbClient()
# Look for edges with the wrong names:
for edge in edges:
backend_edge_ids.append(edge['id'])
rtr_binding = nsxv_db.get_nsxv_router_binding_by_edge(
edgeapi.context.session, edge['id'])
if (rtr_binding and
edge['name'].startswith('backup-') and
rtr_binding['router_id'] != edge['name']):
plugin_nsx_mismatch.append(
{'edge_id': edge['id'],
'edge_name': edge['name'],
'router_id': rtr_binding['router_id']})
LOG.info(formatters.output_formatter(
constants.BACKUP_EDGES + ' with name mismatch:',
plugin_nsx_mismatch,
['edge_id', 'edge_name', 'router_id']))
# Also look for missing edges
like_filters = {'router_id': vcns_const.BACKUP_ROUTER_PREFIX + "%"}
rtr_bindings = nsxv_db.get_nsxv_router_bindings(edgeapi.context.session,
like_filters=like_filters)
plugin_nsx_missing = []
for rtr_binding in rtr_bindings:
if rtr_binding['edge_id'] not in backend_edge_ids:
plugin_nsx_missing.append(
{'edge_id': rtr_binding['edge_id'],
'router_id': rtr_binding['router_id'],
'db_status': rtr_binding['status']})
LOG.info(formatters.output_formatter(
constants.BACKUP_EDGES + ' missing from backend:',
plugin_nsx_missing,
['edge_id', 'router_id', 'db_status']))
def nsx_fix_name_mismatch(resource, event, trigger, **kwargs):
errmsg = ("Need to specify edge-id property. Add --property "
"edge-id=<edge-id>")
if not kwargs.get('property'):
LOG.error("%s", errmsg)
return
properties = admin_utils.parse_multi_keyval_opt(kwargs['property'])
edgeapi = utils.NeutronDbClient()
edge_id = properties.get('edge-id')
if not edge_id:
LOG.error("%s", errmsg)
return
try:
# edge[0] is response status code
# edge[1] is response body
edge = nsxv.get_edge(edge_id)[1]
except exceptions.NeutronException as e:
LOG.error("%s", str(e))
else:
if edge['name'].startswith('backup-'):
rtr_binding = nsxv_db.get_nsxv_router_binding_by_edge(
edgeapi.context.session, edge['id'])
if rtr_binding['router_id'] == edge['name']:
LOG.error('Edge %s no mismatch with NSX', edge_id)
return
try:
with locking.LockManager.get_lock(edge_id):
# Update edge at NSXv backend
if rtr_binding['router_id'].startswith('dhcp-'):
# Edge is a DHCP edge - just use router_id as name
edge['name'] = rtr_binding['router_id']
else:
# This is a router - if shared, prefix with 'shared-'
nsx_attr = (edgeapi.context.session.query(
nsxv_models.NsxvRouterExtAttributes).filter_by(
router_id=rtr_binding['router_id']).first())
if nsx_attr and nsx_attr['router_type'] == 'shared':
edge['name'] = ('shared-' + _uuid())[
:vcns_const.EDGE_NAME_LEN]
elif (nsx_attr and
nsx_attr['router_type'] == 'exclusive'):
rtr_db = (edgeapi.context.session.query(
l3_db.Router).filter_by(
id=rtr_binding['router_id']).first())
if rtr_db:
edge['name'] = (
rtr_db['name'][
:nsxv_constants.ROUTER_NAME_LENGTH -
len(rtr_db['id'])] +
'-' + rtr_db['id'])
else:
LOG.error(
'No database entry for router id %s',
rtr_binding['router_id'])
else:
LOG.error(
'Could not determine the name for '
'Edge %s', edge_id)
return
if not kwargs.get('force'):
confirm = admin_utils.query_yes_no(
"Do you want to rename edge %s to %s" %
(edge_id, edge['name']),
default="no")
if not confirm:
LOG.info("Edge rename aborted by user")
return
LOG.info("Edge rename started")
# remove some keys that will fail the NSX transaction
edge_utils.remove_irrelevant_keys_from_edge_request(edge)
try:
LOG.error("Update edge...")
nsxv.update_edge(edge_id, edge)
except Exception as e:
LOG.error("Update failed - %s", (e))
except Exception as e:
LOG.error("%s", str(e))
else:
LOG.error(
'Edge %s has no backup prefix on NSX', edge_id)
return
registry.subscribe(nsx_list_backup_edges,
constants.BACKUP_EDGES,
shell.Operations.LIST.value)
registry.subscribe(nsx_clean_backup_edge,
constants.BACKUP_EDGES,
shell.Operations.CLEAN.value)
registry.subscribe(nsx_clean_all_backup_edges,
constants.BACKUP_EDGES,
shell.Operations.CLEAN_ALL.value)
registry.subscribe(nsx_list_name_mismatches,
constants.BACKUP_EDGES,
shell.Operations.LIST_MISMATCHES.value)
registry.subscribe(nsx_fix_name_mismatch,
constants.BACKUP_EDGES,
shell.Operations.FIX_MISMATCH.value)
registry.subscribe(neutron_clean_backup_edge,
constants.BACKUP_EDGES,
shell.Operations.NEUTRON_CLEAN.value)