102 lines
2.7 KiB
Python
102 lines
2.7 KiB
Python
#!/usr/bin/env python
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"""
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Stop docker container that have been running longer than the max_run_time and
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match some prefix.
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"""
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import argparse
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import logging
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import sys
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import dateutil.parser
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import docker
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import docker.errors
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import requests.exceptions
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from docker_custodian.args import timedelta_type
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log = logging.getLogger(__name__)
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def stop_containers(client, max_run_time, matcher, dry_run):
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for container_summary in client.containers():
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container = client.inspect_container(container_summary['Id'])
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name = container['Name'].lstrip('/')
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if (
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matcher(name) and
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has_been_running_since(container, max_run_time)
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):
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log.info("Stopping container %s %s: running since %s" % (
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container['Id'][:16],
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name,
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container['State']['StartedAt']))
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if not dry_run:
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stop_container(client, container['Id'])
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def stop_container(client, id):
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try:
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client.stop(id)
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except requests.exceptions.Timeout as e:
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log.warn("Failed to stop container %s: %s" % (id, e))
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except docker.errors.APIError as ae:
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log.warn("Error stopping %s: %s" % (id, ae))
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def build_container_matcher(prefixes):
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def matcher(name):
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return any(name.startswith(prefix) for prefix in prefixes)
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return matcher
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def has_been_running_since(container, min_time):
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started_at = container.get('State', {}).get('StartedAt')
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if not started_at:
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return False
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return dateutil.parser.parse(started_at) <= min_time
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def main():
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logging.basicConfig(
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level=logging.INFO,
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format="%(message)s",
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stream=sys.stdout)
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opts = get_opts()
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client = docker.Client(timeout=opts.timeout)
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matcher = build_container_matcher(opts.prefix)
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stop_containers(client, opts.max_run_time, matcher, opts.dry_run)
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def get_opts(args=None):
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parser = argparse.ArgumentParser()
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parser.add_argument(
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'--max-run-time',
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type=timedelta_type,
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help="Maximum time a container is allows to run. Time may be specified "
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"in any pytimeparse supported format.")
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parser.add_argument(
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'--prefix', action="append", default=[],
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help="Only stop containers which match one of the "
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"prefix.")
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parser.add_argument(
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'--dry-run', action="store_true",
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help="Only log actions, don't stop anything.")
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parser.add_argument(
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'-t', '--timeout', type=int, default=60,
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help="HTTP timeout in seconds for making docker API calls.")
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opts = parser.parse_args(args=args)
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if not opts.prefix:
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parser.error("Running with no --prefix will match nothing.")
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return opts
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if __name__ == "__main__":
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main()
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