armada/armada/api/controller/rollback.py

58 lines
2.0 KiB
Python

# Copyright 2018 The Armada Authors.
#
# 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 json
import falcon
from oslo_config import cfg
from armada import api
from armada.common import policy
CONF = cfg.CONF
class Rollback(api.BaseResource):
"""Controller for performing a rollback of a release
"""
@policy.enforce('armada:rollback_release')
def on_post(self, req, resp, release):
try:
with self.get_tiller(req, resp) as tiller:
msg = self.handle(req, release, tiller)
resp.body = json.dumps({
'message': msg,
})
resp.content_type = 'application/json'
resp.status = falcon.HTTP_200
except Exception as e:
self.logger.exception('Caught unexpected exception')
err_message = 'Failed to rollback release: {}'.format(e)
self.error(req.context, err_message)
self.return_error(resp, falcon.HTTP_500, message=err_message)
def handle(self, req, release, tiller):
dry_run = req.get_param_as_bool('dry_run')
tiller.rollback_release(
release,
req.get_param_as_int('version') or 0,
wait=req.get_param_as_bool('wait'),
timeout=req.get_param_as_int('timeout') or 0,
force=req.get_param_as_bool('force'),
recreate_pods=req.get_param_as_bool('recreate_pods'))
return ('(dry run) ' if dry_run else '') + \
'Rollback of {} complete.'.format(release)