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plugins/modules/cloud/docker/docker_prune.py
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270
plugins/modules/cloud/docker/docker_prune.py
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#!/usr/bin/python
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#
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# Copyright 2016 Red Hat | Ansible
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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DOCUMENTATION = '''
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---
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module: docker_prune
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short_description: Allows to prune various docker objects
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description:
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- Allows to run C(docker container prune), C(docker image prune), C(docker network prune)
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and C(docker volume prune) via the Docker API.
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options:
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containers:
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description:
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- Whether to prune containers.
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type: bool
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default: no
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containers_filters:
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description:
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- A dictionary of filter values used for selecting containers to delete.
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- "For example, C(until: 24h)."
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- See L(the docker documentation,https://docs.docker.com/engine/reference/commandline/container_prune/#filtering)
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for more information on possible filters.
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type: dict
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images:
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description:
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- Whether to prune images.
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type: bool
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default: no
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images_filters:
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description:
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- A dictionary of filter values used for selecting images to delete.
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- "For example, C(dangling: true)."
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- See L(the docker documentation,https://docs.docker.com/engine/reference/commandline/image_prune/#filtering)
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for more information on possible filters.
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type: dict
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networks:
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description:
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- Whether to prune networks.
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type: bool
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default: no
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networks_filters:
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description:
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- A dictionary of filter values used for selecting networks to delete.
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- See L(the docker documentation,https://docs.docker.com/engine/reference/commandline/network_prune/#filtering)
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for more information on possible filters.
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type: dict
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volumes:
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description:
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- Whether to prune volumes.
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type: bool
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default: no
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volumes_filters:
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description:
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- A dictionary of filter values used for selecting volumes to delete.
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- See L(the docker documentation,https://docs.docker.com/engine/reference/commandline/volume_prune/#filtering)
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for more information on possible filters.
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type: dict
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builder_cache:
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description:
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- Whether to prune the builder cache.
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- Requires version 3.3.0 of the Docker SDK for Python or newer.
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type: bool
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default: no
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extends_documentation_fragment:
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- community.general.docker
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- community.general.docker.docker_py_2_documentation
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author:
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- "Felix Fontein (@felixfontein)"
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requirements:
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- "L(Docker SDK for Python,https://docker-py.readthedocs.io/en/stable/) >= 2.1.0"
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- "Docker API >= 1.25"
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'''
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EXAMPLES = '''
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- name: Prune containers older than 24h
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docker_prune:
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containers: yes
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containers_filters:
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# only consider containers created more than 24 hours ago
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until: 24h
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- name: Prune everything
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docker_prune:
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containers: yes
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images: yes
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networks: yes
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volumes: yes
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builder_cache: yes
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- name: Prune everything (including non-dangling images)
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docker_prune:
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containers: yes
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images: yes
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images_filters:
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dangling: false
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networks: yes
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volumes: yes
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builder_cache: yes
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'''
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RETURN = '''
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# containers
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containers:
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description:
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- List of IDs of deleted containers.
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returned: I(containers) is C(true)
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type: list
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elements: str
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sample: '[]'
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containers_space_reclaimed:
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description:
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- Amount of reclaimed disk space from container pruning in bytes.
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returned: I(containers) is C(true)
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type: int
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sample: '0'
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# images
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images:
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description:
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- List of IDs of deleted images.
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returned: I(images) is C(true)
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type: list
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elements: str
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sample: '[]'
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images_space_reclaimed:
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description:
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- Amount of reclaimed disk space from image pruning in bytes.
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returned: I(images) is C(true)
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type: int
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sample: '0'
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# networks
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networks:
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description:
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- List of IDs of deleted networks.
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returned: I(networks) is C(true)
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type: list
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elements: str
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sample: '[]'
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# volumes
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volumes:
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description:
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- List of IDs of deleted volumes.
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returned: I(volumes) is C(true)
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type: list
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elements: str
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sample: '[]'
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volumes_space_reclaimed:
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description:
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- Amount of reclaimed disk space from volumes pruning in bytes.
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returned: I(volumes) is C(true)
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type: int
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sample: '0'
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# builder_cache
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builder_cache_space_reclaimed:
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description:
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- Amount of reclaimed disk space from builder cache pruning in bytes.
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returned: I(builder_cache) is C(true)
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type: int
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sample: '0'
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'''
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import traceback
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try:
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from docker.errors import DockerException
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except ImportError:
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# missing Docker SDK for Python handled in ansible.module_utils.docker.common
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pass
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from distutils.version import LooseVersion
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from ansible_collections.community.general.plugins.module_utils.docker.common import (
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AnsibleDockerClient,
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RequestException,
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)
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try:
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from ansible_collections.community.general.plugins.module_utils.docker.common import docker_version, clean_dict_booleans_for_docker_api
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except Exception as dummy:
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# missing Docker SDK for Python handled in ansible.module_utils.docker.common
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pass
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def main():
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argument_spec = dict(
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containers=dict(type='bool', default=False),
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containers_filters=dict(type='dict'),
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images=dict(type='bool', default=False),
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images_filters=dict(type='dict'),
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networks=dict(type='bool', default=False),
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networks_filters=dict(type='dict'),
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volumes=dict(type='bool', default=False),
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volumes_filters=dict(type='dict'),
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builder_cache=dict(type='bool', default=False),
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)
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client = AnsibleDockerClient(
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argument_spec=argument_spec,
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# supports_check_mode=True,
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min_docker_api_version='1.25',
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min_docker_version='2.1.0',
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)
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# Version checks
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cache_min_version = '3.3.0'
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if client.module.params['builder_cache'] and client.docker_py_version < LooseVersion(cache_min_version):
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msg = "Error: Docker SDK for Python's version is %s. Minimum version required for builds option is %s. Use `pip install --upgrade docker` to upgrade."
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client.fail(msg % (docker_version, cache_min_version))
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try:
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result = dict()
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if client.module.params['containers']:
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filters = clean_dict_booleans_for_docker_api(client.module.params.get('containers_filters'))
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res = client.prune_containers(filters=filters)
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result['containers'] = res.get('ContainersDeleted') or []
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result['containers_space_reclaimed'] = res['SpaceReclaimed']
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if client.module.params['images']:
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filters = clean_dict_booleans_for_docker_api(client.module.params.get('images_filters'))
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res = client.prune_images(filters=filters)
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result['images'] = res.get('ImagesDeleted') or []
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result['images_space_reclaimed'] = res['SpaceReclaimed']
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if client.module.params['networks']:
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filters = clean_dict_booleans_for_docker_api(client.module.params.get('networks_filters'))
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res = client.prune_networks(filters=filters)
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result['networks'] = res.get('NetworksDeleted') or []
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if client.module.params['volumes']:
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filters = clean_dict_booleans_for_docker_api(client.module.params.get('volumes_filters'))
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res = client.prune_volumes(filters=filters)
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result['volumes'] = res.get('VolumesDeleted') or []
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result['volumes_space_reclaimed'] = res['SpaceReclaimed']
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if client.module.params['builder_cache']:
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res = client.prune_builds()
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result['builder_cache_space_reclaimed'] = res['SpaceReclaimed']
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client.module.exit_json(**result)
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except DockerException as e:
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client.fail('An unexpected docker error occurred: {0}'.format(e), exception=traceback.format_exc())
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except RequestException as e:
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client.fail('An unexpected requests error occurred when docker-py tried to talk to the docker daemon: {0}'.format(e), exception=traceback.format_exc())
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if __name__ == '__main__':
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main()
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