charm-neutron-api/actions/actions.py
James Page 5f22e621c2 Update charm to use Python 3
Updates across the charm and unit tests to switch to
execution under Python 3.

Note that the changes are not backwards compatible
with Python 2.

Refactor use of neutronclient python module to simply
wrap the neutron binary, using the yaml output format
to avoid the requirement for a Python 3 module on
older OpenStack release versions.

Change-Id: Ic26b0dd19a76552481939325963a6c21585dee3c
2017-11-07 13:53:40 +11:00

63 lines
1.6 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_api_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:
return "Action %s undefined" % action_name
else:
try:
action(args)
except Exception as e:
action_fail(str(e))
if __name__ == "__main__":
sys.exit(main(sys.argv))