policylambda.py

# 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 argparse
import os

from c7n.config import Config
from c7n.policy import load as policy_load
from c7n import mu, resources


def load_policies(options):
    policies = []
    for f in options.config_files:
        collection = policy_load(options, f)
        policies.extend(collection.filter(options.policy_filter))
    return policies


def setup_parser():
    parser = argparse.ArgumentParser()
    parser.add_argument(
        '-c', '--config', dest="config_file", required=True,
        help="Policy configuration files")
    parser.add_argument("-p", "--policies", default=None, dest='policy_filter',
                        help="Only use named/matched policies")
    parser.add_argument("-o", "--output-dir", default=None, required=True)
    return parser


def main():
    parser = setup_parser()
    options = parser.parse_args()
    config = Config.empty()
    resources.load_resources()
    collection = policy_load(
        config, options.config_file).filter(options.policy_filter)

    for p in collection:
        exec_mode_type = p.data.get('mode', {'type': 'pull'}).get('type')
        if exec_mode_type == 'pull':
            continue
            
        archive = mu.PolicyLambda(p).get_archive()
        with open(os.path.join(options.output_dir, "%s.zip" % p.name), 'wb') as fh:
            fh.write(archive.get_bytes())

if __name__ == '__main__':
    main()