95 lines
3.9 KiB
Python
95 lines
3.9 KiB
Python
#
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# 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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from oslo_log import log as logging
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from oslo_utils import timeutils
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from tacker.db.common_services import common_services_db
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from tacker.plugins.common import constants
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from tacker.vnfm.infra_drivers.openstack import heat_client as hc
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from tacker.vnfm.policy_actions import abstract_action
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from tacker.vnfm import vim_client
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LOG = logging.getLogger(__name__)
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def _log_monitor_events(context, vnf_dict, evt_details):
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_cos_db_plg = common_services_db.CommonServicesPluginDb()
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_cos_db_plg.create_event(context, res_id=vnf_dict['id'],
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res_type=constants.RES_TYPE_VNF,
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res_state=vnf_dict['status'],
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evt_type=constants.RES_EVT_MONITOR,
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tstamp=timeutils.utcnow(),
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details=evt_details)
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class VNFActionRespawn(abstract_action.AbstractPolicyAction):
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def get_type(self):
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return 'respawn'
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def get_name(self):
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return 'respawn'
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def get_description(self):
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return 'Tacker VNF respawning policy'
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def execute_action(self, plugin, context, vnf_dict, args):
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vnf_id = vnf_dict['id']
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LOG.info(_('vnf %s is dead and needs to be respawned'), vnf_id)
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attributes = vnf_dict['attributes']
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vim_id = vnf_dict['vim_id']
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def _update_failure_count():
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failure_count = int(attributes.get('failure_count', '0')) + 1
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failure_count_str = str(failure_count)
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LOG.debug(_("vnf %(vnf_id)s failure count %(failure_count)s"),
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{'vnf_id': vnf_id, 'failure_count': failure_count_str})
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attributes['failure_count'] = failure_count_str
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attributes['dead_instance_id_' + failure_count_str] = vnf_dict[
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'instance_id']
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def _fetch_vim(vim_uuid):
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return vim_client.VimClient().get_vim(context, vim_uuid)
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def _delete_heat_stack(vim_auth):
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placement_attr = vnf_dict.get('placement_attr', {})
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region_name = placement_attr.get('region_name')
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heatclient = hc.HeatClient(auth_attr=vim_auth,
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region_name=region_name)
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heatclient.delete(vnf_dict['instance_id'])
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LOG.debug(_("Heat stack %s delete initiated"), vnf_dict[
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'instance_id'])
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_log_monitor_events(context, vnf_dict, "ActionRespawnHeat invoked")
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def _respin_vnf():
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update_vnf_dict = plugin.create_vnf_sync(context, vnf_dict)
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LOG.info(_('respawned new vnf %s'), update_vnf_dict['id'])
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plugin.config_vnf(context, update_vnf_dict)
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return update_vnf_dict
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if plugin._mark_vnf_dead(vnf_dict['id']):
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_update_failure_count()
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vim_res = _fetch_vim(vim_id)
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if vnf_dict['attributes'].get('monitoring_policy'):
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plugin._vnf_monitor.mark_dead(vnf_dict['id'])
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_delete_heat_stack(vim_res['vim_auth'])
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updated_vnf = _respin_vnf()
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plugin.add_vnf_to_monitor(context, updated_vnf)
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LOG.debug(_("VNF %s added to monitor thread"), updated_vnf[
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'id'])
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if vnf_dict['attributes'].get('alarming_policy'):
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_delete_heat_stack(vim_res['vim_auth'])
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vnf_dict['attributes'].pop('alarming_policy')
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_respin_vnf()
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