charm-cinder/actions/actions.py

80 lines
2.0 KiB
Python
Executable File

#!/usr/bin/env python3
#
# Copyright 2016 Canonical Ltd
#
# 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 os
import sys
_path = os.path.dirname(os.path.realpath(__file__))
_hooks = os.path.abspath(os.path.join(_path, '../hooks'))
_root = os.path.abspath(os.path.join(_path, '..'))
def _add_path(path):
if path not in sys.path:
sys.path.insert(1, path)
_add_path(_hooks)
_add_path(_root)
from charmhelpers.core.hookenv import action_fail
from cinder_utils import (
pause_unit_helper,
register_configs,
resume_unit_helper,
)
import cinder_manage
def pause(args):
"""Pause the Ceilometer services.
@raises Exception should the service fail to stop.
"""
pause_unit_helper(register_configs())
def resume(args):
"""Resume the Ceilometer services.
@raises Exception should the service fail to start."""
resume_unit_helper(register_configs())
# A dictionary of all the defined actions to callables (which take
# parsed arguments).
ACTIONS = {
"pause": pause,
"resume": resume,
"remove-services": cinder_manage.remove_services,
"rename-volume-host": cinder_manage.rename_volume_host,
"volume-host-add-driver": cinder_manage.volume_host_add_driver,
}
def main(args):
action_name = os.path.basename(args[0])
try:
action = ACTIONS[action_name]
except KeyError:
return "Action {} undefined".format(action_name)
else:
try:
action(args)
except Exception as e:
action_fail(str(e))
if __name__ == "__main__":
sys.exit(main(sys.argv))