118 lines
2.8 KiB
Python
118 lines
2.8 KiB
Python
# Copyright 2018 Nokia Networks.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import eventlet
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import sys
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from oslo_config import cfg
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from oslo_log import log as logging
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from mistral import context as auth_ctx
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from mistral.rpc import clients as rpc
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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_enabled = False
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_stopped = True
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_running_actions = set()
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def add_action(action_ex_id):
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global _enabled
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# With run-action there is no actions_ex_id assigned.
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if action_ex_id and _enabled:
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rpc.get_engine_client().process_action_heartbeats([action_ex_id])
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_running_actions.add(action_ex_id)
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def remove_action(action_ex_id):
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global _enabled
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if action_ex_id and _enabled:
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_running_actions.discard(action_ex_id)
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def send_action_heartbeats():
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LOG.debug('Running heartbeat sender...')
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global _running_actions
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if not _running_actions:
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return
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rpc.get_engine_client().process_action_heartbeats(_running_actions)
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def _loop():
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global _stopped
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# This is an administrative thread so we need to set an admin
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# security context.
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auth_ctx.set_ctx(
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auth_ctx.MistralContext(
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user=None,
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tenant=None,
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auth_token=None,
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is_admin=True
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)
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)
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while not _stopped:
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try:
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send_action_heartbeats()
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except Exception:
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LOG.exception(
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'Action heartbeat sender iteration failed'
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' due to an unexpected exception.'
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)
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# For some mysterious reason (probably eventlet related)
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# the exception is not cleared from the context automatically.
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# This results in subsequent log.warning calls to show invalid
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# info.
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if sys.version_info < (3,):
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sys.exc_clear()
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eventlet.sleep(CONF.action_heartbeat.check_interval)
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def start():
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global _stopped, _enabled
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interval = CONF.action_heartbeat.check_interval
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max_missed = CONF.action_heartbeat.max_missed_heartbeats
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_enabled = interval and max_missed
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if not _enabled:
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LOG.info("Action heartbeat reporting is disabled.")
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return
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_stopped = False
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eventlet.spawn(_loop)
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def stop(graceful=False):
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global _stopped
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_stopped = True
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