mirror of
https://github.com/Security-Onion-Solutions/securityonion.git
synced 2025-12-06 09:12:45 +01:00
103 lines
3.6 KiB
Python
Executable File
103 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright 2014,2015,2016,2017,2018,2019,2020,2021,2022 Security Onion Solutions, LLC
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys, argparse, re, docker
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from packaging.version import Version, InvalidVersion
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from itertools import groupby, chain
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def get_image_name(string) -> str:
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return ':'.join(string.split(':')[:-1])
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def get_so_image_basename(string) -> str:
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return get_image_name(string).split('/so-')[-1]
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def get_image_version(string) -> str:
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ver = string.split(':')[-1]
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if ver == 'latest':
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# Version doesn't like "latest", so use a high semver
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return '99999.9.9'
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else:
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try:
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Version(ver)
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except InvalidVersion:
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# Also return a very high semver for any version
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# with a dash in it since it will likely be a dev version of some kind
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if '-' in ver:
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return '999999.9.9'
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return ver
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def main(quiet):
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client = docker.from_env()
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# Prune old/stopped containers
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if not quiet: print('Pruning old containers')
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client.containers.prune()
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image_list = client.images.list(filters={ 'dangling': False })
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# Map list of image objects to flattened list of tags (format: "name:version")
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tag_list = list(chain.from_iterable(list(map(lambda x: x.attrs.get('RepoTags'), image_list))))
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# Filter to only SO images (base name begins with "so-")
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tag_list = list(filter(lambda x: re.match(r'^.*\/so-[^\/]*$', get_image_name(x)), tag_list))
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# Group tags into lists by base name (sort by same projection first)
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tag_list.sort(key=lambda x: get_so_image_basename(x))
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grouped_tag_lists = [ list(it) for _, it in groupby(tag_list, lambda x: get_so_image_basename(x)) ]
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no_prunable = True
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for t_list in grouped_tag_lists:
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try:
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# Group tags by version, in case multiple images exist with the same version string
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t_list.sort(key=lambda x: Version(get_image_version(x)), reverse=True)
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grouped_t_list = [ list(it) for _,it in groupby(t_list, lambda x: get_image_version(x)) ]
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# Keep the 2 most current version groups
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if len(grouped_t_list) <= 2:
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continue
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else:
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no_prunable = False
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for group in grouped_t_list[2:]:
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for tag in group:
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if not quiet: print(f'Removing image {tag}')
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try:
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client.images.remove(tag, force=True)
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except docker.errors.ClientError as e:
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print(f'Could not remove image {tag}, continuing...')
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except (docker.errors.APIError, InvalidVersion) as e:
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print(f'so-{get_so_image_basename(t_list[0])}: {e}', file=sys.stderr)
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exit(1)
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except Exception as e:
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print('Unhandled exception occurred:')
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print(f'so-{get_so_image_basename(t_list[0])}: {e}', file=sys.stderr)
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exit(1)
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if no_prunable and not quiet:
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print('No Security Onion images to prune')
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if __name__ == "__main__":
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main_parser = argparse.ArgumentParser(add_help=False)
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main_parser.add_argument('-q', '--quiet', action='store_const', const=True, required=False)
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args = main_parser.parse_args(sys.argv[1:])
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main(args.quiet)
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