charm-neutron-openvswitch/actions/pause_resume.py
James Page 0e86a664be Update to run under Python 3
Refactoring of charm to support execution under Python 3.

Change-Id: I8d48614f38abf31159311d82b0cbb54e60f710c1
2017-11-20 08:54:31 -08:00

65 lines
1.7 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
sys.path.append('hooks/')
from charmhelpers.core.hookenv import action_fail
from neutron_ovs_utils import (
pause_unit_helper,
resume_unit_helper,
register_configs,
)
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}
def main(args):
action_name = os.path.basename(args[0])
try:
action = ACTIONS[action_name]
except KeyError:
s = "Action {} undefined".format(action_name)
action_fail(s)
return s
else:
try:
action(args)
except Exception as e:
action_fail("Action {} failed: {}".format(action_name, str(e)))
if __name__ == "__main__":
sys.exit(main(sys.argv))