community.docker.docker_stack – docker stack module

Note

This plugin is part of the community.docker collection (version 1.5.0).

To install it use: ansible-galaxy collection install community.docker.

To use it in a playbook, specify: community.docker.docker_stack.

Synopsis

• Manage docker stacks using the ‘docker stack’ command on the target node (see examples).

Requirements

The below requirements are needed on the host that executes this module.

• jsondiff

• pyyaml

Parameters

Parameter	Choices/Defaults	Comments
absent_retries integer	Default: 0	If >0 and state is absent the module will retry up to absent_retries times to delete the stack until all the resources have been effectively deleted. If the last try still reports the stack as not completely removed the module will fail.
absent_retries_interval integer	Default: 1	Interval in seconds between consecutive absent_retries.
compose list / elements=raw	Default: []	List of compose definitions. Any element may be a string referring to the path of the compose file on the target host or the YAML contents of a compose file nested as dictionary.
name string / required		Stack name
prune boolean	Choices: no ← yes	If true will add the --prune option to the docker stack deploy command. This will have docker remove the services not present in the current stack definition.
resolve_image string	Choices: always changed never	If set will add the --resolve-image option to the docker stack deploy command. This will have docker query the registry to resolve image digest and supported platforms. If not set, docker use "always" by default.
state string	Choices: present ← absent	Service state.
with_registry_auth boolean	Choices: no ← yes	If true will add the --with-registry-auth option to the docker stack deploy command. This will have docker send registry authentication details to Swarm agents.

Notes

Note

• Return values out and err have been deprecated and will be removed in community.docker 2.0.0. Use stdout and stderr instead.

Examples

- name: Deploy stack from a compose file
  community.docker.docker_stack:
    state: present
    name: mystack
    compose:
      - /opt/docker-compose.yml

- name: Deploy stack from base compose file and override the web service
  community.docker.docker_stack:
    state: present
    name: mystack
    compose:
      - /opt/docker-compose.yml
      - version: '3'
        services:
          web:
            image: nginx:latest
            environment:
              ENVVAR: envvar

- name: Remove stack
  community.docker.docker_stack:
    name: mystack
    state: absent

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key	Returned	Description
stack_spec_diff dictionary	on change	dictionary containing the differences between the 'Spec' field of the stack services before and after applying the new stack definition. Sample: "stack_spec_diff": {'test_stack_test_service': {u'TaskTemplate': {u'ContainerSpec': {delete: [u'Env']}}}}

Authors

• Dario Zanzico (@dariko)