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#!/usr/bin/python
ANSIBLE_METADATA = {
'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'
}
DOCUMENTATION = '''
---
module: docker_list_containers
short_description: "List running docker containers"
description:
- "Lists all running containers or those with matching label"
options:
label_name:
description:
- container label name to match
required: false
label_value:
description:
- container label value to match
required: false
author:
- Bartek Grzybowski (b.grzybowski@partner.samsung.com)
'''
EXAMPLES = '''
# List all running containers
- name: List containers
docker_list_containers:
# List all running containers matching label
- name: List containers
docker_list_containers:
label_name: 'io.rancher.project.name'
label_value: 'kubernetes'
'''
RETURN = '''
containers:
description: List of running containers matching module criteria
type: list
returned: always
sample: [
"rancher-agent",
"rancher-server",
"kubernetes-node-1",
"infrastructure-server"
]
'''
from ansible_collections.community.docker.plugins.module_utils.common import AnsibleDockerClient
class DockerListContainers:
def __init__(self):
self.docker_client = AnsibleDockerClient(
argument_spec=dict(
label_name=dict(type='str', required=False),
label_value=dict(type='str', required=False)
)
)
self.containers = self.docker_client.containers()
self.label_name=self.docker_client.module.params.get('label_name')
self.label_value=self.docker_client.module.params.get('label_value')
if self.label_name:
self.containers_names=self._get_containers_names_by_label()
else:
self.containers_names=self._get_containers_names()
self.result=dict(
containers=self.containers_names,
changed=False
)
def _get_containers_names(self):
return [str(container_meta.get('Names')[0][1:]) for container_meta in self.containers if 'Names' in container_meta]
def _get_containers_names_by_label(self):
names=[]
for container_meta in self.containers:
if container_meta.get('Labels',{}).get(self.label_name) == self.label_value:
names.append(str(container_meta['Names'][0][1:])) # strip leading '/' in container name and convert to str from unicode
return names
def main():
cont=DockerListContainers()
cont.docker_client.module.exit_json(**cont.result)
if __name__ == '__main__':
main()
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