0833afb6de
This is to work around an issue that a broken pipe exception might get thrown when we invoke this purge through neutron client API. We don't have this issue when its invoked thru CLI. Change-Id: I94d6ab8658efc08dd5be8dbd348e098453e71b39
121 lines
5.0 KiB
Python
121 lines
5.0 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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import re
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import sys
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from neutronclient.common import exceptions as nexc
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from neutronclient.neutron.v2_0 import purge as n_purge
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AUTO_PTG_REGEX = 'auto[0-9a-f]{32}\Z'
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class Purge(n_purge.Purge):
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"""Delete all resources that belong to a given tenant."""
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def _pluralize(self, string):
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if re.search('_policy$', string):
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return re.sub('_policy$', '_policies', string)
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return string + 's'
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def _get_resources(self, neutron_client, resource_types, tenant_id):
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resources = super(Purge, self)._get_resources(neutron_client,
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resource_types,
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tenant_id)
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# exclude auto_ptg as it was created by implicit workflow
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if 'policy_target_group' in resource_types:
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index = resource_types.index('policy_target_group')
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for resource in list(resources[index]):
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if re.match(AUTO_PTG_REGEX, resource['id']):
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resources[index].remove(resource)
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self.total_resources -= 1
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return resources
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def _purge_resources(self, neutron_client, resource_types,
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tenant_resources):
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deleted = {}
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failed = {}
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failures = False
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for index, resources in enumerate(tenant_resources):
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resource_type = resource_types[index]
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failed[resource_type] = 0
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deleted[resource_type] = 0
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for resource in resources:
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try:
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self._delete_resource(neutron_client, resource_type,
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resource)
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deleted[resource_type] += 1
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self.deleted_resources += 1
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except nexc.NotFound:
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# this is for l2p/l3p created under the
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# implicit workflow.
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deleted[resource_type] += 1
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self.deleted_resources += 1
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except Exception:
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failures = True
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failed[resource_type] += 1
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self.total_resources -= 1
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percent_complete = 100
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if self.total_resources > 0:
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percent_complete = (self.deleted_resources /
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float(self.total_resources)) * 100
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try:
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sys.stdout.write("\rPurging resources: %d%% complete." %
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percent_complete)
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sys.stdout.flush()
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except Exception:
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# A broken pipe IOError exception might get thrown if
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# invoked from our MD's keystone tenant delete handler
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# code. We should just ignore that then continue to
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# purge the rest of the resources.
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continue
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return (deleted, failed, failures)
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def take_action(self, parsed_args):
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neutron_client = self.get_client()
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self.any_failures = False
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# A list of the types of resources supported in the order in which
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# they should be deleted.
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resource_types = ['policy_target', 'policy_target_group', 'l2_policy',
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'l3_policy', 'external_policy', 'nat_pool',
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'external_segment', 'policy_rule_set',
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'policy_rule', 'policy_classifier',
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'policy_action', 'network_service_policy',
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'servicechain_instance', 'servicechain_spec',
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'servicechain_node', 'service_profile',
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'application_policy_group']
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deleted = {}
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failed = {}
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self.total_resources = 0
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self.deleted_resources = 0
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resources = self._get_resources(neutron_client, resource_types,
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parsed_args.tenant)
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deleted, failed, failures = self._purge_resources(neutron_client,
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resource_types,
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resources)
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print('\n%s' % self._build_message(deleted, failed, failures))
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# clean up Neutron resources also
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super(Purge, self).take_action(parsed_args)
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class PurgeAPI(Purge):
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def __init__(self, app, app_args, gbp_client):
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self.gbp_client = gbp_client
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super(PurgeAPI, self).__init__(app, app_args)
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def get_client(self):
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return self.gbp_client
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