charm-heat/actions/actions.py
David Ames 0bcdc44c01 Series Upgrade
Implement the series-upgrade feature allowing to move between Ubuntu
series.

Change-Id: I4377125f537c555e4b0b63dc08a3d9c0fc9d5251
2018-10-15 16:25:06 -07:00

81 lines
1.8 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 sys
import os
_path = os.path.dirname(os.path.realpath(__file__))
_parent = os.path.abspath(os.path.join(_path, ".."))
_hooks = os.path.abspath(os.path.join(_parent, "hooks"))
def _add_path(path):
if path not in sys.path:
sys.path.insert(1, path)
_add_path(_parent)
_add_path(_hooks)
from charmhelpers.core.hookenv import action_fail
sys.path.append('hooks/')
from heat_utils import (
pause_unit_helper,
resume_unit_helper,
register_configs,
)
def pause(args):
"""Pause all the Glance services.
@raises Exception if any services fail to stop
"""
pause_unit_helper(register_configs())
def resume(args):
"""Resume all the Glance services.
@raises Exception if any services 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))