group-based-policy/gbpservice/neutron/services/grouppolicy/plugin.py

1416 lines
66 KiB
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 netaddr
from neutron.api.v2 import attributes as nattr
from neutron.common import log
from neutron.openstack.common import excutils
from neutron.openstack.common import log as logging
from gbpservice.neutron.db.grouppolicy import group_policy_db as gdb
from gbpservice.neutron.db.grouppolicy import group_policy_mapping_db
from gbpservice.neutron.extensions import group_policy as gpex
from gbpservice.neutron.services.grouppolicy import (
extension_manager as ext_manager)
from gbpservice.neutron.services.grouppolicy import (
group_policy_context as p_context)
from gbpservice.neutron.services.grouppolicy import (
policy_driver_manager as manager)
from gbpservice.neutron.services.grouppolicy.common import exceptions as gp_exc
LOG = logging.getLogger(__name__)
class GroupPolicyPlugin(group_policy_mapping_db.GroupPolicyMappingDbPlugin):
"""Implementation of the Group Policy Model Plugin.
This class manages the workflow of Group Policy request/response.
Most DB related works are implemented in class
db_group_policy_mapping.GroupPolicyMappingDbMixin.
"""
_supported_extension_aliases = ["group-policy", "group-policy-mapping"]
@property
def supported_extension_aliases(self):
if not hasattr(self, '_aliases'):
aliases = self._supported_extension_aliases[:]
aliases += self.extension_manager.extension_aliases()
self._aliases = aliases
return self._aliases
# Shared attribute validation rules:
# - A shared resource cannot use/link a non-shared resource
# - A shared resource cannot be reverted to non-shared if used/linked by
# other shared resources, or by any resource owned by any other tenant
# In the usage graph, specify which resource has to be checked to validate
# sharing policy conformity:
# usage_graph = {<to_check>: {<attribute>: <type>}, ...}
# <attribute> is the field on the <to_check> dictionary that can be used
# to retrieve the UUID/s of the specific object <type>
usage_graph = {'l3_policy': {'external_segments':
'external_segment'},
'l2_policy': {'l3_policy_id': 'l3_policy'},
'policy_target_group': {
'network_service_policy_id': 'network_service_policy',
'l2_policy_id': 'l2_policy',
'provided_policy_rule_sets': 'policy_rule_set',
'consumed_policy_rule_sets': 'policy_rule_set'},
'network_service_policy': {},
'policy_rule': {
'policy_classifier_id': 'policy_classifier',
'policy_actions': 'policy_action'},
'policy_action': {},
'policy_classifier': {},
'policy_rule_set': {
'parent_id': 'policy_rule_set',
'policy_rules': 'policy_rule'},
'external_segment': {},
'external_policy': {
'external_segments': 'external_segment',
'provided_policy_rule_sets': 'policy_rule_set',
'consumed_policy_rule_sets': 'policy_rule_set'},
'nat_pool': {'external_segment_id':
'external_segment'},
'policy_target': {'policy_target_group_id':
'policy_target_group'}
}
_plurals = None
@property
def plurals(self):
if not self._plurals:
self._plurals = dict((nattr.PLURALS[k], k) for k in nattr.PLURALS)
return self._plurals
def _validate_shared_create(self, context, obj, identity):
# REVISIT(ivar): only validate new references
links = self.usage_graph.get(identity, {})
for attr in links:
ids = obj[attr]
if ids:
if isinstance(ids, basestring):
ids = [ids]
ref_type = links[attr]
linked_objects = getattr(
self, 'get_%s' % self.plurals[ref_type])(
context, filters={'id': ids})
link_ids = set()
for linked in linked_objects:
link_ids.add(linked['id'])
if not linked.get('shared'):
if obj.get('shared'):
raise gp_exc.SharedResourceReferenceError(
res_type=identity, res_id=obj['id'],
ref_type=ref_type, ref_id=linked['id'])
if obj.get('tenant_id') != linked.get('tenant_id'):
raise gp_exc.InvalidCrossTenantReference(
res_type=identity, res_id=obj['id'],
ref_type=ref_type, ref_id=linked['id'])
# Check for missing references
missing = set(ids) - link_ids
if missing:
raise gpex.GbpResourceNotFound(identity=ref_type,
id=str(missing))
def _validate_shared_update(self, context, original, updated, identity):
# Need admin context to check sharing constraints
# Even though the shared attribute may not be changed, the objects
# it is referring to might. For this reson we run the reference
# validation every time a shared resource is updated
# TODO(ivar): run only when relevant updates happen
self._validate_shared_create(context, updated, identity)
if updated.get('shared') != original.get('shared'):
context = context.elevated()
getattr(self, '_validate_%s_unshare' % identity)(context, updated)
def _check_shared_or_different_tenant(self, context, obj,
method, attr, value=None):
tenant_id = obj['tenant_id']
refs = method(context, filters={attr: value or [obj['id']]})
for ref in refs:
if ref.get('shared') or tenant_id != ref['tenant_id']:
raise gp_exc.InvalidSharedAttributeUpdate(id=obj['id'],
rid=ref['id'])
def _validate_l3_policy_unshare(self, context, obj):
self._check_shared_or_different_tenant(
context, obj, self.get_l2_policies, 'l3_policy_id')
def _validate_l2_policy_unshare(self, context, obj):
self._check_shared_or_different_tenant(
context, obj, self.get_policy_target_groups, 'l2_policy_id')
def _validate_policy_target_group_unshare(self, context, obj):
self._check_shared_or_different_tenant(
context, obj, self.get_policy_targets, 'policy_target_group_id')
def _validate_network_service_policy_unshare(self, context, obj):
self._check_shared_or_different_tenant(
context, obj, self.get_policy_target_groups,
'network_service_policy_id')
def _validate_policy_rule_set_unshare(self, context, obj):
self._check_shared_or_different_tenant(
context, obj, self.get_policy_target_groups, 'id',
obj['providing_policy_target_groups'] +
obj['consuming_policy_target_groups'])
self._check_shared_or_different_tenant(
context, obj, self.get_external_policies, 'id',
obj['providing_external_policies'] +
obj['consuming_external_policies'])
def _validate_policy_classifier_unshare(self, context, obj):
self._check_shared_or_different_tenant(
context, obj, self.get_policy_rules, 'policy_classifier_id')
def _validate_policy_rule_unshare(self, context, obj):
c_ids = self._get_policy_rule_policy_rule_sets(context, obj['id'])
self._check_shared_or_different_tenant(
context, obj, self.get_policy_rule_sets, 'id', c_ids)
def _validate_policy_action_unshare(self, context, obj):
r_ids = self._get_policy_action_rules(context, obj['id'])
self._check_shared_or_different_tenant(
context, obj, self.get_policy_rules, 'id', r_ids)
def _validate_external_segment_unshare(self, context, obj):
self._check_shared_or_different_tenant(
context, obj, self.get_l3_policies, 'id', obj['l3_policies'])
self._check_shared_or_different_tenant(
context, obj, self.get_external_policies, 'id',
obj['external_policies'])
self._check_shared_or_different_tenant(
context, obj, self.get_nat_pools, 'external_segment_id')
def _validate_external_policy_unshare(self, context, obj):
pass
def _validate_nat_pool_unshare(self, context, obj):
pass
def _validate_routes(self, context, current, original=None):
if original:
added = (set((x['destination'], x['nexthop']) for x in
current['external_routes']) -
set((x['destination'], x['nexthop']) for x in
original['external_routes']))
else:
added = set((x['destination'], x['nexthop']) for x in
current['external_routes'])
if added:
# Verify new ones don't overlap with the existing L3P
added_dest = set(x[0] for x in added)
# Remove default routes
added_dest.discard('0.0.0.0/0')
added_dest.discard('::/0')
added_ipset = netaddr.IPSet(added_dest)
if current['l3_policies']:
l3ps = self.get_l3_policies(
context, filters={'id': current['l3_policies']})
for l3p in l3ps:
if netaddr.IPSet([l3p['ip_pool']]) & added_ipset:
raise gp_exc.ExternalRouteOverlapsWithL3PIpPool(
destination=added_dest, l3p_id=l3p['id'],
es_id=current['id'])
# Verify NH in ES pool
added_nexthop = netaddr.IPSet(x[1] for x in added if x[1])
es_subnet = netaddr.IPSet([current['cidr']])
if added_nexthop & es_subnet != added_nexthop:
raise gp_exc.ExternalRouteNextHopNotInExternalSegment(
cidr=current['cidr'])
def _validate_l3p_es(self, context, current, original=None):
if original:
added = (set(current['external_segments'].keys()) -
set(original['external_segments'].keys()))
else:
added = set(current['external_segments'].keys())
if added:
es_list = self.get_external_segments(context,
filters={'id': added})
l3p_ipset = netaddr.IPSet([current['ip_pool']])
for es in es_list:
# Verify no route overlap
dest_set = set(x['destination'] for x in
es['external_routes'])
dest_set.discard('0.0.0.0/0')
dest_set.discard('::/0')
if l3p_ipset & netaddr.IPSet(dest_set):
raise gp_exc.ExternalRouteOverlapsWithL3PIpPool(
destination=dest_set, l3p_id=current['id'],
es_id=es['id'])
# Verify segment CIDR doesn't overlap with L3P's
if l3p_ipset & netaddr.IPSet([es['cidr']]):
raise gp_exc.ExternalSegmentSubnetOverlapsWithL3PIpPool(
subnet=es['cidr'], l3p_id=current['id'],
es_id=current['id'])
# Verify allocated address correctly in subnet
for addr in current['external_segments'][es['id']]:
if addr != gdb.ADDRESS_NOT_SPECIFIED:
if addr not in netaddr.IPNetwork(es['cidr']):
raise gp_exc.InvalidL3PExternalIPAddress(
ip=addr, es_id=es['id'], l3p_id=current['id'],
es_cidr=es['cidr'])
def __init__(self):
self.extension_manager = ext_manager.ExtensionManager()
self.policy_driver_manager = manager.PolicyDriverManager()
super(GroupPolicyPlugin, self).__init__()
self.extension_manager.initialize()
self.policy_driver_manager.initialize()
@log.log
def create_policy_target(self, context, policy_target):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin,
self).create_policy_target(context, policy_target)
self.extension_manager.process_create_policy_target(
session, policy_target, result)
self._validate_shared_create(context, result, 'policy_target')
policy_context = p_context.PolicyTargetContext(self, context,
result)
self.policy_driver_manager.create_policy_target_precommit(
policy_context)
try:
self.policy_driver_manager.create_policy_target_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("create_policy_target_postcommit "
"failed, deleting policy_target '%s'"),
result['id'])
self.delete_policy_target(context, result['id'])
return result
@log.log
def update_policy_target(self, context, policy_target_id, policy_target):
session = context.session
with session.begin(subtransactions=True):
original_policy_target = self.get_policy_target(context,
policy_target_id)
updated_policy_target = super(
GroupPolicyPlugin, self).update_policy_target(
context, policy_target_id, policy_target)
self.extension_manager.process_update_policy_target(
session, policy_target, updated_policy_target)
self._validate_shared_update(context, original_policy_target,
updated_policy_target,
'policy_target')
policy_context = p_context.PolicyTargetContext(
self, context, updated_policy_target,
original_policy_target=original_policy_target)
self.policy_driver_manager.update_policy_target_precommit(
policy_context)
self.policy_driver_manager.update_policy_target_postcommit(
policy_context)
return updated_policy_target
@log.log
def delete_policy_target(self, context, policy_target_id):
session = context.session
with session.begin(subtransactions=True):
policy_target = self.get_policy_target(context, policy_target_id)
policy_context = p_context.PolicyTargetContext(
self, context, policy_target)
self.policy_driver_manager.delete_policy_target_precommit(
policy_context)
super(GroupPolicyPlugin, self).delete_policy_target(
context, policy_target_id)
try:
self.policy_driver_manager.delete_policy_target_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("delete_policy_target_postcommit "
"failed, deleting policy_rule_set '%s'"),
policy_target_id)
def get_policy_target(self, context, policy_target_id, fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_policy_target(
context, policy_target_id, None)
self.extension_manager.extend_policy_target_dict(session, result)
return self._fields(result, fields)
def get_policy_targets(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_policy_targets(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_policy_target_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_policy_target_group(self, context, policy_target_group):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin,
self).create_policy_target_group(
context, policy_target_group)
self.extension_manager.process_create_policy_target_group(
session, policy_target_group, result)
self._validate_shared_create(context, result,
'policy_target_group')
policy_context = p_context.PolicyTargetGroupContext(
self, context, result)
self.policy_driver_manager.create_policy_target_group_precommit(
policy_context)
try:
self.policy_driver_manager.create_policy_target_group_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("create_policy_target_group_postcommit "
"failed, deleting policy_target_group '%s'"),
result['id'])
self.delete_policy_target_group(context, result['id'])
return result
@log.log
def update_policy_target_group(self, context, policy_target_group_id,
policy_target_group):
session = context.session
with session.begin(subtransactions=True):
original_policy_target_group = self.get_policy_target_group(
context, policy_target_group_id)
updated_policy_target_group = super(
GroupPolicyPlugin, self).update_policy_target_group(
context, policy_target_group_id, policy_target_group)
self.extension_manager.process_update_policy_target_group(
session, policy_target_group, updated_policy_target_group)
self._validate_shared_update(context, original_policy_target_group,
updated_policy_target_group,
'policy_target_group')
policy_context = p_context.PolicyTargetGroupContext(
self, context, updated_policy_target_group,
original_policy_target_group=original_policy_target_group)
self.policy_driver_manager.update_policy_target_group_precommit(
policy_context)
self.policy_driver_manager.update_policy_target_group_postcommit(
policy_context)
return updated_policy_target_group
@log.log
def delete_policy_target_group(self, context, policy_target_group_id):
session = context.session
with session.begin(subtransactions=True):
policy_target_group = self.get_policy_target_group(
context, policy_target_group_id)
pt_ids = policy_target_group['policy_targets']
for pt_id in pt_ids:
pt = self.get_policy_target(context, pt_id)
if pt['port_id']:
raise gp_exc.PolicyTargetGroupInUse(
policy_target_group=policy_target_group_id)
for pt_id in pt_ids:
# We will allow PTG deletion if all PTs are unused.
# We could have cleaned these opportunistically in
# the previous loop, but we will keep it simple,
# such that either all unused PTs are deleted
# or nothing is.
self.delete_policy_target(context, pt_id)
policy_context = p_context.PolicyTargetGroupContext(
self, context, policy_target_group)
self.policy_driver_manager.delete_policy_target_group_precommit(
policy_context)
super(GroupPolicyPlugin, self).delete_policy_target_group(
context, policy_target_group_id)
try:
self.policy_driver_manager.delete_policy_target_group_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("delete_policy_target_group_postcommit "
"failed, deleting policy_target_group '%s'"),
policy_target_group_id)
def get_policy_target_group(self, context, policy_target_group_id,
fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_policy_target_group(
context, policy_target_group_id, None)
self.extension_manager.extend_policy_target_group_dict(session,
result)
return self._fields(result, fields)
def get_policy_target_groups(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_policy_target_groups(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_policy_target_group_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_l2_policy(self, context, l2_policy):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin,
self).create_l2_policy(context, l2_policy)
self.extension_manager.process_create_l2_policy(
session, l2_policy, result)
self._validate_shared_create(context, result, 'l2_policy')
policy_context = p_context.L2PolicyContext(self, context, result)
self.policy_driver_manager.create_l2_policy_precommit(
policy_context)
try:
self.policy_driver_manager.create_l2_policy_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("create_l2_policy_postcommit "
"failed, deleting l2_policy '%s'"), result['id'])
self.delete_l2_policy(context, result['id'])
return result
@log.log
def update_l2_policy(self, context, l2_policy_id, l2_policy):
session = context.session
with session.begin(subtransactions=True):
original_l2_policy = self.get_l2_policy(context, l2_policy_id)
updated_l2_policy = super(GroupPolicyPlugin,
self).update_l2_policy(
context, l2_policy_id, l2_policy)
self.extension_manager.process_update_l2_policy(
session, l2_policy, updated_l2_policy)
self._validate_shared_update(context, original_l2_policy,
updated_l2_policy, 'l2_policy')
policy_context = p_context.L2PolicyContext(
self, context, updated_l2_policy,
original_l2_policy=original_l2_policy)
self.policy_driver_manager.update_l2_policy_precommit(
policy_context)
self.policy_driver_manager.update_l2_policy_postcommit(
policy_context)
return updated_l2_policy
@log.log
def delete_l2_policy(self, context, l2_policy_id):
session = context.session
with session.begin(subtransactions=True):
l2_policy = self.get_l2_policy(context, l2_policy_id)
policy_context = p_context.L2PolicyContext(self, context,
l2_policy)
self.policy_driver_manager.delete_l2_policy_precommit(
policy_context)
super(GroupPolicyPlugin, self).delete_l2_policy(context,
l2_policy_id)
try:
self.policy_driver_manager.delete_l2_policy_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("delete_l2_policy_postcommit "
" failed, deleting l2_policy '%s'"), l2_policy_id)
def get_l2_policy(self, context, l2_policy_id, fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_l2_policy(
context, l2_policy_id, None)
self.extension_manager.extend_l2_policy_dict(session, result)
return self._fields(result, fields)
def get_l2_policies(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_l2_policies(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_l2_policy_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_network_service_policy(self, context, network_service_policy):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin,
self).create_network_service_policy(
context, network_service_policy)
self.extension_manager.process_create_network_service_policy(
session, network_service_policy, result)
self._validate_shared_create(context, result,
'network_service_policy')
policy_context = p_context.NetworkServicePolicyContext(
self, context, result)
pdm = self.policy_driver_manager
pdm.create_network_service_policy_precommit(
policy_context)
try:
pdm.create_network_service_policy_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("create_network_service_policy_postcommit "
"failed, deleting network_service_policy '%s'"),
result['id'])
self.delete_network_service_policy(context, result['id'])
return result
@log.log
def update_network_service_policy(self, context, network_service_policy_id,
network_service_policy):
session = context.session
with session.begin(subtransactions=True):
original_network_service_policy = super(
GroupPolicyPlugin, self).get_network_service_policy(
context, network_service_policy_id)
updated_network_service_policy = super(
GroupPolicyPlugin, self).update_network_service_policy(
context, network_service_policy_id, network_service_policy)
self.extension_manager.process_update_network_service_policy(
session, network_service_policy,
updated_network_service_policy)
self._validate_shared_update(
context, original_network_service_policy,
updated_network_service_policy, 'network_service_policy')
policy_context = p_context.NetworkServicePolicyContext(
self, context, updated_network_service_policy,
original_network_service_policy=
original_network_service_policy)
self.policy_driver_manager.update_network_service_policy_precommit(
policy_context)
self.policy_driver_manager.update_network_service_policy_postcommit(
policy_context)
return updated_network_service_policy
@log.log
def delete_network_service_policy(
self, context, network_service_policy_id):
session = context.session
with session.begin(subtransactions=True):
network_service_policy = self.get_network_service_policy(
context, network_service_policy_id)
policy_context = p_context.NetworkServicePolicyContext(
self, context, network_service_policy)
self.policy_driver_manager.delete_network_service_policy_precommit(
policy_context)
super(GroupPolicyPlugin, self).delete_network_service_policy(
context, network_service_policy_id)
try:
pdm = self.policy_driver_manager
pdm.delete_network_service_policy_postcommit(policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("delete_network_service_policy_postcommit "
" failed, deleting network_service_policy '%s'"),
network_service_policy_id)
def get_network_service_policy(self, context, network_service_policy_id,
fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_network_service_policy(
context, network_service_policy_id, None)
self.extension_manager.extend_network_service_policy_dict(session,
result)
return self._fields(result, fields)
def get_network_service_policies(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin,
self).get_network_service_policies(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_network_service_policy_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_l3_policy(self, context, l3_policy):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin,
self).create_l3_policy(context, l3_policy)
self.extension_manager.process_create_l3_policy(
session, l3_policy, result)
self._validate_shared_create(context, result, 'l3_policy')
self._validate_l3p_es(context, result)
policy_context = p_context.L3PolicyContext(self, context,
result)
self.policy_driver_manager.create_l3_policy_precommit(
policy_context)
try:
self.policy_driver_manager.create_l3_policy_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("create_l3_policy_postcommit "
"failed, deleting l3_policy '%s'"), result['id'])
self.delete_l3_policy(context, result['id'])
return result
@log.log
def update_l3_policy(self, context, l3_policy_id, l3_policy):
session = context.session
with session.begin(subtransactions=True):
original_l3_policy = self.get_l3_policy(context, l3_policy_id)
updated_l3_policy = super(
GroupPolicyPlugin, self).update_l3_policy(
context, l3_policy_id, l3_policy)
self.extension_manager.process_update_l3_policy(
session, l3_policy, updated_l3_policy)
self._validate_shared_update(context, original_l3_policy,
updated_l3_policy, 'l3_policy')
self._validate_l3p_es(context, updated_l3_policy,
original_l3_policy)
policy_context = p_context.L3PolicyContext(
self, context, updated_l3_policy,
original_l3_policy=original_l3_policy)
self.policy_driver_manager.update_l3_policy_precommit(
policy_context)
self.policy_driver_manager.update_l3_policy_postcommit(
policy_context)
return updated_l3_policy
@log.log
def delete_l3_policy(self, context, l3_policy_id, check_unused=False):
session = context.session
with session.begin(subtransactions=True):
if (check_unused and
(session.query(group_policy_mapping_db.L2PolicyMapping).
filter_by(l3_policy_id=l3_policy_id).count())):
return False
l3_policy = self.get_l3_policy(context, l3_policy_id)
policy_context = p_context.L3PolicyContext(self, context,
l3_policy)
self.policy_driver_manager.delete_l3_policy_precommit(
policy_context)
super(GroupPolicyPlugin, self).delete_l3_policy(context,
l3_policy_id)
try:
self.policy_driver_manager.delete_l3_policy_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("delete_l3_policy_postcommit "
" failed, deleting l3_policy '%s'"), l3_policy_id)
return True
def get_l3_policy(self, context, l3_policy_id, fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_l3_policy(
context, l3_policy_id, None)
self.extension_manager.extend_l3_policy_dict(session, result)
return self._fields(result, fields)
def get_l3_policies(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_l3_policies(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_l3_policy_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_policy_classifier(self, context, policy_classifier):
session = context.session
with session.begin(subtransactions=True):
result = super(
GroupPolicyPlugin, self).create_policy_classifier(
context, policy_classifier)
self.extension_manager.process_create_policy_classifier(
session, policy_classifier, result)
self._validate_shared_create(context, result, 'policy_classifier')
policy_context = p_context.PolicyClassifierContext(self, context,
result)
self.policy_driver_manager.create_policy_classifier_precommit(
policy_context)
try:
self.policy_driver_manager.create_policy_classifier_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_(
"policy_driver_manager.create_policy_classifier_postcommit"
" failed, deleting policy_classifier '%s'"), result['id'])
self.delete_policy_classifier(context, result['id'])
return result
@log.log
def update_policy_classifier(self, context, id, policy_classifier):
session = context.session
with session.begin(subtransactions=True):
original_policy_classifier = super(
GroupPolicyPlugin, self).get_policy_classifier(context, id)
updated_policy_classifier = super(
GroupPolicyPlugin, self).update_policy_classifier(
context, id, policy_classifier)
self.extension_manager.process_update_policy_classifier(
session, policy_classifier, updated_policy_classifier)
self._validate_shared_update(context, original_policy_classifier,
updated_policy_classifier,
'policy_classifier')
policy_context = p_context.PolicyClassifierContext(
self, context, updated_policy_classifier,
original_policy_classifier=original_policy_classifier)
self.policy_driver_manager.update_policy_classifier_precommit(
policy_context)
self.policy_driver_manager.update_policy_classifier_postcommit(
policy_context)
return updated_policy_classifier
@log.log
def delete_policy_classifier(self, context, id):
session = context.session
with session.begin(subtransactions=True):
policy_classifier = self.get_policy_classifier(context, id)
policy_context = p_context.PolicyClassifierContext(
self, context, policy_classifier)
self.policy_driver_manager.delete_policy_classifier_precommit(
policy_context)
super(GroupPolicyPlugin, self).delete_policy_classifier(
context, id)
try:
self.policy_driver_manager.delete_policy_classifier_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_(
"policy_driver_manager.delete_policy_classifier_postcommit"
" failed, deleting policy_classifier '%s'"), id)
def get_policy_classifier(self, context, policy_classifier_id,
fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_policy_classifier(
context, policy_classifier_id, None)
self.extension_manager.extend_policy_classifier_dict(session,
result)
return self._fields(result, fields)
def get_policy_classifiers(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_policy_classifiers(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_policy_classifier_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_policy_action(self, context, policy_action):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin,
self).create_policy_action(context, policy_action)
self.extension_manager.process_create_policy_action(
session, policy_action, result)
self._validate_shared_create(context, result, 'policy_action')
policy_context = p_context.PolicyActionContext(self, context,
result)
self.policy_driver_manager.create_policy_action_precommit(
policy_context)
try:
self.policy_driver_manager.create_policy_action_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_(
"policy_driver_manager.create_policy_action_postcommit "
"failed, deleting policy_action '%s'"), result['id'])
self.delete_policy_action(context, result['id'])
return result
@log.log
def update_policy_action(self, context, id, policy_action):
session = context.session
with session.begin(subtransactions=True):
original_policy_action = super(
GroupPolicyPlugin, self).get_policy_action(context, id)
updated_policy_action = super(
GroupPolicyPlugin, self).update_policy_action(context, id,
policy_action)
self.extension_manager.process_update_policy_action(
session, policy_action, updated_policy_action)
self._validate_shared_update(context, original_policy_action,
updated_policy_action,
'policy_action')
policy_context = p_context.PolicyActionContext(
self, context, updated_policy_action,
original_policy_action=original_policy_action)
self.policy_driver_manager.update_policy_action_precommit(
policy_context)
self.policy_driver_manager.update_policy_action_postcommit(
policy_context)
return updated_policy_action
@log.log
def delete_policy_action(self, context, id):
session = context.session
with session.begin(subtransactions=True):
policy_action = self.get_policy_action(context, id)
policy_context = p_context.PolicyActionContext(self, context,
policy_action)
self.policy_driver_manager.delete_policy_action_precommit(
policy_context)
super(GroupPolicyPlugin, self).delete_policy_action(context, id)
try:
self.policy_driver_manager.delete_policy_action_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_(
"policy_driver_manager.delete_policy_action_postcommit "
"failed, deleting policy_action '%s'"), id)
def get_policy_action(self, context, policy_action_id, fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_policy_action(
context, policy_action_id, None)
self.extension_manager.extend_policy_action_dict(session, result)
return self._fields(result, fields)
def get_policy_actions(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_policy_actions(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_policy_action_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_policy_rule(self, context, policy_rule):
session = context.session
with session.begin(subtransactions=True):
result = super(
GroupPolicyPlugin, self).create_policy_rule(
context, policy_rule)
self.extension_manager.process_create_policy_rule(
session, policy_rule, result)
self._validate_shared_create(context, result, 'policy_rule')
policy_context = p_context.PolicyRuleContext(self, context,
result)
self.policy_driver_manager.create_policy_rule_precommit(
policy_context)
try:
self.policy_driver_manager.create_policy_rule_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_(
"policy_driver_manager.create_policy_rule_postcommit"
" failed, deleting policy_rule '%s'"), result['id'])
self.delete_policy_rule(context, result['id'])
return result
@log.log
def update_policy_rule(self, context, id, policy_rule):
session = context.session
with session.begin(subtransactions=True):
original_policy_rule = super(
GroupPolicyPlugin, self).get_policy_rule(context, id)
updated_policy_rule = super(
GroupPolicyPlugin, self).update_policy_rule(
context, id, policy_rule)
self.extension_manager.process_update_policy_rule(
session, policy_rule, updated_policy_rule)
self._validate_shared_update(context, original_policy_rule,
updated_policy_rule, 'policy_rule')
policy_context = p_context.PolicyRuleContext(
self, context, updated_policy_rule,
original_policy_rule=original_policy_rule)
self.policy_driver_manager.update_policy_rule_precommit(
policy_context)
self.policy_driver_manager.update_policy_rule_postcommit(
policy_context)
return updated_policy_rule
@log.log
def delete_policy_rule(self, context, id):
session = context.session
with session.begin(subtransactions=True):
policy_rule = self.get_policy_rule(context, id)
policy_context = p_context.PolicyRuleContext(self, context,
policy_rule)
self.policy_driver_manager.delete_policy_rule_precommit(
policy_context)
super(GroupPolicyPlugin, self).delete_policy_rule(
context, id)
try:
self.policy_driver_manager.delete_policy_rule_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_(
"policy_driver_manager.delete_policy_rule_postcommit"
" failed, deleting policy_rule '%s'"), id)
def get_policy_rule(self, context, policy_rule_id, fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_policy_rule(
context, policy_rule_id, None)
self.extension_manager.extend_policy_rule_dict(session, result)
return self._fields(result, fields)
def get_policy_rules(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_policy_rules(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_policy_rule_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_policy_rule_set(self, context, policy_rule_set):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin,
self).create_policy_rule_set(
context, policy_rule_set)
self.extension_manager.process_create_policy_rule_set(
session, policy_rule_set, result)
self._validate_shared_create(context, result, 'policy_rule_set')
policy_context = p_context.PolicyRuleSetContext(
self, context, result)
self.policy_driver_manager.create_policy_rule_set_precommit(
policy_context)
try:
self.policy_driver_manager.create_policy_rule_set_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_(
"policy_driver_manager.create_policy_rule_set_postcommit "
"failed, deleting policy_rule_set '%s'"), result['id'])
self.delete_policy_rule_set(context, result['id'])
return result
@log.log
def update_policy_rule_set(self, context, id, policy_rule_set):
session = context.session
with session.begin(subtransactions=True):
original_policy_rule_set = super(
GroupPolicyPlugin, self).get_policy_rule_set(context, id)
updated_policy_rule_set = super(
GroupPolicyPlugin, self).update_policy_rule_set(
context, id, policy_rule_set)
self.extension_manager.process_update_policy_rule_set(
session, policy_rule_set, updated_policy_rule_set)
self._validate_shared_update(context, original_policy_rule_set,
updated_policy_rule_set,
'policy_rule_set')
policy_context = p_context.PolicyRuleSetContext(
self, context, updated_policy_rule_set,
original_policy_rule_set=original_policy_rule_set)
self.policy_driver_manager.update_policy_rule_set_precommit(
policy_context)
self.policy_driver_manager.update_policy_rule_set_postcommit(
policy_context)
return updated_policy_rule_set
@log.log
def delete_policy_rule_set(self, context, id):
session = context.session
with session.begin(subtransactions=True):
policy_rule_set = self.get_policy_rule_set(context, id)
policy_context = p_context.PolicyRuleSetContext(
self, context, policy_rule_set)
self.policy_driver_manager.delete_policy_rule_set_precommit(
policy_context)
super(GroupPolicyPlugin, self).delete_policy_rule_set(context, id)
try:
self.policy_driver_manager.delete_policy_rule_set_postcommit(
policy_context)
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_(
"policy_driver_manager.delete_policy_rule_set_postcommit "
"failed, deleting policy_rule_set '%s'"), id)
def get_policy_rule_set(self, context, policy_rule_set_id, fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_policy_rule_set(
context, policy_rule_set_id, None)
self.extension_manager.extend_policy_rule_set_dict(session, result)
return self._fields(result, fields)
def get_policy_rule_sets(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_policy_rule_sets(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_policy_rule_set_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_external_segment(self, context, external_segment):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin,
self).create_external_segment(context,
external_segment)
self.extension_manager.process_create_external_segment(
session, external_segment, result)
self._validate_shared_create(context, result,
'external_segment')
self._validate_routes(context, result)
policy_context = p_context.ExternalSegmentContext(
self, context, result)
(self.policy_driver_manager.
create_external_segment_precommit(policy_context))
try:
(self.policy_driver_manager.
create_external_segment_postcommit(policy_context))
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("create_external_segment_postcommit "
"failed, deleting external_segment "
"'%s'"), result['id'])
self.delete_external_segment(context, result['id'])
return result
@log.log
def update_external_segment(self, context, external_segment_id,
external_segment):
session = context.session
with session.begin(subtransactions=True):
original_external_segment = super(
GroupPolicyPlugin, self).get_external_segment(
context, external_segment_id)
updated_external_segment = super(
GroupPolicyPlugin, self).update_external_segment(
context, external_segment_id,
external_segment)
self.extension_manager.process_update_external_segment(
session, external_segment, updated_external_segment)
self._validate_shared_update(
context, original_external_segment,
updated_external_segment, 'external_segment')
self._validate_routes(context, updated_external_segment,
original_external_segment)
# TODO(ivar): Validate Routes' GW in es subnet
policy_context = p_context.ExternalSegmentContext(
self, context, updated_external_segment,
original_external_segment)
(self.policy_driver_manager.
update_external_segment_precommit(policy_context))
self.policy_driver_manager.update_external_segment_postcommit(
policy_context)
return updated_external_segment
@log.log
def delete_external_segment(self, context, external_segment_id):
session = context.session
with session.begin(subtransactions=True):
es = self.get_external_segment(context, external_segment_id)
if es['l3_policies'] or es['nat_pools'] or es['external_policies']:
return False
policy_context = p_context.ExternalSegmentContext(
self, context, es)
(self.policy_driver_manager.
delete_external_segment_precommit(policy_context))
super(GroupPolicyPlugin, self).delete_external_segment(
context, external_segment_id)
try:
(self.policy_driver_manager.
delete_external_segment_postcommit(policy_context))
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("delete_external_segment_postcommit "
"failed, deleting external_segment '%s'"),
external_segment_id)
return True
def get_external_segment(self, context, external_segment_id, fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_external_segment(
context, external_segment_id, None)
self.extension_manager.extend_external_segment_dict(session,
result)
return self._fields(result, fields)
def get_external_segments(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_external_segments(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_external_segment_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_external_policy(self, context, external_policy):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin,
self).create_external_policy(
context, external_policy)
self.extension_manager.process_create_external_policy(
session, external_policy, result)
self._validate_shared_create(context, result,
'external_policy')
policy_context = p_context.ExternalPolicyContext(
self, context, result)
(self.policy_driver_manager.
create_external_policy_precommit(policy_context))
try:
(self.policy_driver_manager.
create_external_policy_postcommit(policy_context))
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("create_external_policy_postcommit "
"failed, deleting external_policy "
"'%s'"), result['id'])
self.delete_external_policy(context, result['id'])
return result
@log.log
def update_external_policy(self, context, external_policy_id,
external_policy):
session = context.session
with session.begin(subtransactions=True):
original_external_policy = super(
GroupPolicyPlugin, self).get_external_policy(
context, external_policy_id)
updated_external_policy = super(
GroupPolicyPlugin, self).update_external_policy(
context, external_policy_id,
external_policy)
self.extension_manager.process_update_external_policy(
session, external_policy, updated_external_policy)
self._validate_shared_update(
context, original_external_policy,
updated_external_policy, 'external_policy')
policy_context = p_context.ExternalPolicyContext(
self, context, updated_external_policy,
original_external_policy)
(self.policy_driver_manager.
update_external_policy_precommit(policy_context))
self.policy_driver_manager.update_external_policy_postcommit(
policy_context)
return updated_external_policy
@log.log
def delete_external_policy(self, context, external_policy_id,
check_unused=False):
session = context.session
with session.begin(subtransactions=True):
es = self.get_external_policy(context, external_policy_id)
policy_context = p_context.ExternalPolicyContext(
self, context, es)
(self.policy_driver_manager.
delete_external_policy_precommit(policy_context))
super(GroupPolicyPlugin, self).delete_external_policy(
context, external_policy_id)
try:
(self.policy_driver_manager.
delete_external_policy_postcommit(policy_context))
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("delete_external_policy_postcommit "
"failed, deleting external_policy '%s'"),
external_policy_id)
return True
def get_external_policy(self, context, external_policy_id, fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_external_policy(
context, external_policy_id, None)
self.extension_manager.extend_external_policy_dict(session,
result)
return self._fields(result, fields)
def get_external_policies(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_external_policies(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_external_policy_dict(
session, result)
return [self._fields(result, fields) for result in results]
@log.log
def create_nat_pool(self, context, nat_pool):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).create_nat_pool(
context, nat_pool)
self.extension_manager.process_create_nat_pool(session, nat_pool,
result)
self._validate_shared_create(context, result, 'nat_pool')
policy_context = p_context.NatPoolContext(self, context, result)
(self.policy_driver_manager.
create_nat_pool_precommit(policy_context))
try:
(self.policy_driver_manager.
create_nat_pool_postcommit(policy_context))
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("create_nat_pool_postcommit failed, deleting "
"nat_pool '%s'"), result['id'])
self.delete_nat_pool(context, result['id'])
return result
@log.log
def update_nat_pool(self, context, nat_pool_id, nat_pool):
session = context.session
with session.begin(subtransactions=True):
original_nat_pool = super(
GroupPolicyPlugin, self).get_nat_pool(context, nat_pool_id)
updated_nat_pool = super(
GroupPolicyPlugin, self).update_nat_pool(context, nat_pool_id,
nat_pool)
self.extension_manager.process_update_nat_pool(
session, nat_pool, updated_nat_pool)
self._validate_shared_update(context, original_nat_pool,
updated_nat_pool, 'nat_pool')
policy_context = p_context.NatPoolContext(
self, context, updated_nat_pool, original_nat_pool)
(self.policy_driver_manager.
update_nat_pool_precommit(policy_context))
self.policy_driver_manager.update_nat_pool_postcommit(policy_context)
return updated_nat_pool
@log.log
def delete_nat_pool(self, context, nat_pool_id, check_unused=False):
session = context.session
with session.begin(subtransactions=True):
es = self.get_nat_pool(context, nat_pool_id)
policy_context = p_context.NatPoolContext(self, context, es)
(self.policy_driver_manager.delete_nat_pool_precommit(
policy_context))
super(GroupPolicyPlugin, self).delete_nat_pool(context,
nat_pool_id)
try:
(self.policy_driver_manager.
delete_nat_pool_postcommit(policy_context))
except gp_exc.GroupPolicyDriverError:
with excutils.save_and_reraise_exception():
LOG.error(_("delete_nat_pool_postcommit failed, deleting "
"nat_pool '%s'"), nat_pool_id)
return True
def get_nat_pool(self, context, nat_pool_id, fields=None):
session = context.session
with session.begin(subtransactions=True):
result = super(GroupPolicyPlugin, self).get_nat_pool(
context, nat_pool_id, None)
self.extension_manager.extend_nat_pool_dict(session, result)
return self._fields(result, fields)
def get_nat_pools(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
session = context.session
with session.begin(subtransactions=True):
results = super(GroupPolicyPlugin, self).get_nat_pools(
context, filters, None, sorts, limit, marker, page_reverse)
for result in results:
self.extension_manager.extend_nat_pool_dict(
session, result)
return [self._fields(result, fields) for result in results]