133 lines
3.8 KiB
Python
Executable File
133 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright 2021 Canonical Ltd
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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 os
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import sys
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sys.path.append('hooks/')
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import charmhelpers.contrib.openstack.deferred_events as deferred_events
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import charmhelpers.contrib.openstack.utils as os_utils
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from charmhelpers.core.hookenv import (
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action_get,
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action_fail,
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)
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import neutron_ovs_hooks
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from neutron_ovs_utils import (
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assess_status,
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pause_unit_helper,
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resume_unit_helper,
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register_configs,
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)
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def pause(args):
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"""Pause the neutron-openvswitch services.
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@raises Exception should the service fail to stop.
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"""
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pause_unit_helper(register_configs(),
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exclude_services=['openvswitch-switch'])
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def resume(args):
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"""Resume the neutron-openvswitch services.
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@raises Exception should the service fail to start."""
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resume_unit_helper(register_configs(),
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exclude_services=['openvswitch-switch'])
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def restart(args):
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"""Restart services.
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:param args: Unused
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:type args: List[str]
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"""
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deferred_only = action_get("deferred-only")
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services = action_get("services").split()
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# Check input
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if deferred_only and services:
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action_fail("Cannot set deferred-only and services")
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return
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if not (deferred_only or services):
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action_fail("Please specify deferred-only or services")
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return
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if action_get('run-hooks'):
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_run_deferred_hooks()
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if deferred_only:
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os_utils.restart_services_action(deferred_only=True)
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else:
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os_utils.restart_services_action(services=services)
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assess_status(register_configs())
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def _run_deferred_hooks():
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"""Run supported deferred hooks as needed.
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Run supported deferred hooks as needed. If support for deferring a new
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hook is added to the charm then this method will need updating.
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"""
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if not deferred_events.is_restart_permitted():
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deferred_hooks = deferred_events.get_deferred_hooks()
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if deferred_hooks and 'config-changed' in deferred_hooks:
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neutron_ovs_hooks.config_changed(check_deferred_restarts=False)
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deferred_events.clear_deferred_hook('config-changed')
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def run_deferred_hooks(args):
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"""Run deferred hooks.
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:param args: Unused
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:type args: List[str]
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"""
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_run_deferred_hooks()
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os_utils.restart_services_action(deferred_only=True)
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assess_status(register_configs())
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def show_deferred_events(args):
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"""Show the deferred events.
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:param args: Unused
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:type args: List[str]
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"""
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os_utils.show_deferred_events_action_helper()
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# A dictionary of all the defined actions to callables (which take
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# parsed arguments).
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ACTIONS = {"pause": pause, "resume": resume, "restart-services": restart,
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"show-deferred-events": show_deferred_events,
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"run-deferred-hooks": run_deferred_hooks}
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def main(args):
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action_name = os.path.basename(args[0])
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try:
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action = ACTIONS[action_name]
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except KeyError:
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s = "Action {} undefined".format(action_name)
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action_fail(s)
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return s
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else:
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try:
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action(args)
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except Exception as e:
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action_fail("Action {} failed: {}".format(action_name, str(e)))
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if __name__ == "__main__":
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sys.exit(main(sys.argv))
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