# Copyright 2018 Capital One Services, LLC
#
# 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 logging
import os
import uuid
from c7n.config import Config
from c7n.policy import PolicyCollection
# Load resource plugins
from c7n_gcp.entry import initialize_gcp
initialize_gcp()
log = logging.getLogger('custodian.gcp.functions')
logging.getLogger().setLevel(logging.INFO)
[docs]def run(event, context=None):
# policies file should always be valid in functions so do loading naively
with open('config.json') as f:
policy_config = json.load(f)
if not policy_config or not policy_config.get('policies'):
log.error('Invalid policy config')
return False
options_overrides = \
policy_config['policies'][0].get('mode', {}).get('execution-options', {})
# if output_dir specified use that, otherwise make a temp directory
if 'output_dir' not in options_overrides:
options_overrides['output_dir'] = get_tmp_output_dir()
# merge all our options in
options = Config.empty(**options_overrides)
policies = PolicyCollection.from_data(policy_config, options)
if policies:
for p in policies:
log.info("running policy %s", p.name)
p.push(event, context)
return True
[docs]def get_tmp_output_dir():
output_dir = '/tmp/' + str(uuid.uuid4())
if not os.path.exists(output_dir):
try:
os.mkdir(output_dir)
except OSError as error:
log.warning("Unable to make output directory: {}".format(error))
return output_dir