community.docker.docker_swarm (3.8.1) — module

Manage Swarm cluster

Authors: Thierry Bouvet (@tbouvet), Piotr Wojciechowski (@WojciechowskiPiotr)

Install collection

Install with ansible-galaxy collection install community.docker:==3.8.1


Add to requirements.yml

  collections:
    - name: community.docker
      version: 3.8.1

Description

Create a new Swarm cluster.

Add/Remove nodes or managers to an existing cluster.


Requirements

Usage examples

  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.

- name: Init a new swarm with default parameters
  community.docker.docker_swarm:
    state: present
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Update swarm configuration
  community.docker.docker_swarm:
    state: present
    election_tick: 5
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Add nodes
  community.docker.docker_swarm:
    state: join
    advertise_addr: 192.168.1.2
    join_token: SWMTKN-1--xxxxx
    remote_addrs: [ '192.168.1.1:2377' ]
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Leave swarm for a node
  community.docker.docker_swarm:
    state: absent
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Remove a swarm manager
  community.docker.docker_swarm:
    state: absent
    force: true
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Remove node from swarm
  community.docker.docker_swarm:
    state: remove
    node_id: mynode
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Init a new swarm with different data path interface
  community.docker.docker_swarm:
    state: present
    advertise_addr: eth0
    data_path_addr: ens10
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Init a new swarm with a different data path port
  community.docker.docker_swarm:
    state: present
    data_path_port: 9789

Inputs

    
tls:
    default: false
    description:
    - Secure the connection to the API by using TLS without verifying the authenticity
      of the Docker host server. Note that if O(validate_certs) is set to V(true) as well,
      it will take precedence.
    - If the value is not specified in the task, the value of environment variable E(DOCKER_TLS)
      will be used instead. If the environment variable is not set, the default value
      will be used.
    type: bool

name:
    description:
    - The name of the swarm.
    type: str

debug:
    default: false
    description:
    - Debug mode
    type: bool

force:
    default: false
    description:
    - Use with state V(present) to force creating a new Swarm, even if already part of
      one.
    - Use with state V(absent) to Leave the swarm even if this node is a manager.
    type: bool

state:
    choices:
    - present
    - join
    - absent
    - remove
    default: present
    description:
    - Set to V(present), to create/update a new cluster.
    - Set to V(join), to join an existing cluster.
    - Set to V(absent), to leave an existing cluster.
    - Set to V(remove), to remove an absent node from the cluster. Note that removing
      requires Docker SDK for Python >= 2.4.0.
    - M(community.docker.docker_node) can be used to demote a manager before removal.
    type: str

labels:
    description:
    - User-defined key/value metadata.
    - Label operations in this module apply to the docker swarm cluster. Use M(community.docker.docker_node)
      module to add/modify/remove swarm node labels.
    - Requires API version >= 1.32.
    type: dict

ca_path:
    aliases:
    - ca_cert
    - tls_ca_cert
    - cacert_path
    description:
    - Use a CA certificate when performing server verification by providing the path to
      a CA certificate file.
    - If the value is not specified in the task and the environment variable E(DOCKER_CERT_PATH)
      is set, the file C(ca.pem) from the directory specified in the environment variable
      E(DOCKER_CERT_PATH) will be used.
    - This option was called O(ca_cert) and got renamed to O(ca_path) in community.docker
      3.6.0. The old name has been added as an alias and can still be used.
    type: path

node_id:
    description:
    - Swarm id of the node to remove.
    - Used with O(state=remove).
    type: str

timeout:
    default: 60
    description:
    - The maximum amount of time in seconds to wait on a response from the API.
    - If the value is not specified in the task, the value of environment variable E(DOCKER_TIMEOUT)
      will be used instead. If the environment variable is not set, the default value
      will be used.
    type: int

client_key:
    aliases:
    - tls_client_key
    - key_path
    description:
    - Path to the client's TLS key file.
    - If the value is not specified in the task and the environment variable E(DOCKER_CERT_PATH)
      is set, the file C(key.pem) from the directory specified in the environment variable
      E(DOCKER_CERT_PATH) will be used.
    type: path

join_token:
    description:
    - Swarm token used to join a swarm cluster.
    - Used with O(state=join).
    - If this value is specified, the corresponding value in the return values will be
      censored by Ansible. This is a side-effect of this value not being logged.
    type: str

api_version:
    aliases:
    - docker_api_version
    default: auto
    description:
    - The version of the Docker API running on the Docker Host.
    - Defaults to the latest version of the API supported by Docker SDK for Python and
      the docker daemon.
    - If the value is not specified in the task, the value of environment variable E(DOCKER_API_VERSION)
      will be used instead. If the environment variable is not set, the default value
      will be used.
    type: str

client_cert:
    aliases:
    - tls_client_cert
    - cert_path
    description:
    - Path to the client's TLS certificate file.
    - If the value is not specified in the task and the environment variable E(DOCKER_CERT_PATH)
      is set, the file C(cert.pem) from the directory specified in the environment variable
      E(DOCKER_CERT_PATH) will be used.
    type: path

docker_host:
    aliases:
    - docker_url
    default: unix:///var/run/docker.sock
    description:
    - The URL or Unix socket path used to connect to the Docker API. To connect to a remote
      host, provide the TCP connection string. For example, V(tcp://192.0.2.23:2376).
      If TLS is used to encrypt the connection, the module will automatically replace
      C(tcp) in the connection URL with C(https).
    - If the value is not specified in the task, the value of environment variable E(DOCKER_HOST)
      will be used instead. If the environment variable is not set, the default value
      will be used.
    type: str

listen_addr:
    default: 0.0.0.0:2377
    description:
    - Listen address used for inter-manager communication.
    - This can either be an address/port combination in the form V(192.168.1.1:4567),
      or an interface followed by a port number, like V(eth0:4567).
    - If the port number is omitted, the default swarm listening port is used.
    - Only used when swarm is initialised or joined. Because of this it's not considered
      for idempotency checking.
    type: str

ssl_version:
    description:
    - Provide a valid SSL version number. Default value determined by L(SSL Python module,
      https://docs.python.org/3/library/ssl.html).
    - If the value is not specified in the task, the value of environment variable E(DOCKER_SSL_VERSION)
      will be used instead.
    - B(Note:) this option is no longer supported for Docker SDK for Python 7.0.0+. Specifying
      it with Docker SDK for Python 7.0.0 or newer will lead to an error.
    type: str

subnet_size:
    description:
    - Default address pool subnet mask length.
    - Only used when swarm is initialised. Because of this it's not considered for idempotency
      checking.
    - Requires API version >= 1.39.
    type: int

remote_addrs:
    description:
    - Remote address of one or more manager nodes of an existing Swarm to connect to.
    - Used with O(state=join).
    elements: str
    type: list

tls_hostname:
    description:
    - When verifying the authenticity of the Docker Host server, provide the expected
      name of the server.
    - If the value is not specified in the task, the value of environment variable E(DOCKER_TLS_HOSTNAME)
      will be used instead. If the environment variable is not set, the default value
      will be used.
    - Note that this option had a default value V(localhost) in older versions. It was
      removed in community.docker 3.0.0.
    - B(Note:) this option is no longer supported for Docker SDK for Python 7.0.0+. Specifying
      it with Docker SDK for Python 7.0.0 or newer will lead to an error.
    type: str

election_tick:
    description:
    - Amount of ticks (in seconds) needed without a leader to trigger a new election.
    - Docker default value is V(10) seconds.
    type: int

advertise_addr:
    description:
    - Externally reachable address advertised to other nodes.
    - This can either be an address/port combination in the form V(192.168.1.1:4567),
      or an interface followed by a port number, like V(eth0:4567).
    - If the port number is omitted, the port number from the listen address is used.
    - If O(advertise_addr) is not specified, it will be automatically detected when possible.
    - Only used when swarm is initialised or joined. Because of this it's not considered
      for idempotency checking.
    type: str

data_path_addr:
    description:
    - Address or interface to use for data path traffic.
    - This can either be an address in the form V(192.168.1.1), or an interface, like
      V(eth0).
    - Only used when swarm is initialised or joined. Because of this it is not considered
      for idempotency checking.
    - Requires API version >= 1.30.
    type: str
    version_added: 2.5.0
    version_added_collection: community.docker

data_path_port:
    description:
    - Port to use for data path traffic.
    - This needs to be a port number like V(9789).
    - Only used when swarm is initialised. Because of this it is not considered for idempotency
      checking.
    - Requires API version >= 1.40.
    type: int
    version_added: 3.1.0
    version_added_collection: community.docker

heartbeat_tick:
    description:
    - Amount of ticks (in seconds) between each heartbeat.
    - Docker default value is V(1) seconds.
    type: int

signing_ca_key:
    description:
    - The desired signing CA key for all swarm node TLS leaf certificates, in PEM format.
    - This must not be a path to a key, but the contents of the key.
    - Requires API version >= 1.30.
    type: str

use_ssh_client:
    default: false
    description:
    - For SSH transports, use the C(ssh) CLI tool instead of paramiko.
    - Requires Docker SDK for Python 4.4.0 or newer.
    type: bool
    version_added: 1.5.0
    version_added_collection: community.docker

validate_certs:
    aliases:
    - tls_verify
    default: false
    description:
    - Secure the connection to the API by using TLS and verifying the authenticity of
      the Docker host server.
    - If the value is not specified in the task, the value of environment variable E(DOCKER_TLS_VERIFY)
      will be used instead. If the environment variable is not set, the default value
      will be used.
    type: bool

ca_force_rotate:
    description:
    - An integer whose purpose is to force swarm to generate a new signing CA certificate
      and key, if none have been specified.
    - Docker default value is V(0).
    - Requires API version >= 1.30.
    type: int

signing_ca_cert:
    description:
    - The desired signing CA certificate for all swarm node TLS leaf certificates, in
      PEM format.
    - This must not be a path to a certificate, but the contents of the certificate.
    - Requires API version >= 1.30.
    type: str

node_cert_expiry:
    description:
    - Automatic expiry for nodes certificates, given in nanoseconds.
    - Docker default value is 90 days, which corresponds to a value of V(7776000000000000).
    type: int

autolock_managers:
    description:
    - If set, generate a key and use it to lock data stored on the managers.
    - Docker default value is V(false).
    - M(community.docker.docker_swarm_info) can be used to retrieve the unlock key.
    type: bool

default_addr_pool:
    description:
    - Default address pool in CIDR format.
    - Only used when swarm is initialised. Because of this it's not considered for idempotency
      checking.
    - Requires API version >= 1.39.
    elements: str
    type: list

snapshot_interval:
    description:
    - Number of logs entries between snapshot.
    - Docker default value is V(10000).
    type: int

keep_old_snapshots:
    description:
    - Number of snapshots to keep beyond the current snapshot.
    - Docker default value is V(0).
    type: int

rotate_worker_token:
    default: false
    description: Rotate the worker join token.
    type: bool

rotate_manager_token:
    default: false
    description: Rotate the manager join token.
    type: bool

dispatcher_heartbeat_period:
    description:
    - The delay (in nanoseconds) for an agent to send a heartbeat to the dispatcher.
    - Docker default value is 5 seconds, which corresponds to a value of V(5000000000).
    type: int

task_history_retention_limit:
    description:
    - Maximum number of tasks history stored.
    - Docker default value is V(5).
    type: int

log_entries_for_slow_followers:
    description:
    - Number of log entries to keep around to sync up slow followers after a snapshot
      is created.
    type: int

Outputs

actions:
  description: Provides the actions done on the swarm.
  elements: str
  example:
  - This cluster is already a swarm cluster
  returned: when action failed.
  type: list
swarm_facts:
  contains:
    JoinTokens:
      contains:
        Manager:
          description:
          - Token to join the cluster as a new *manager* node.
          - B(Note:) if this value has been specified as O(join_token), the value
            here will not be the token, but C(VALUE_SPECIFIED_IN_NO_LOG_PARAMETER).
            If you pass O(join_token), make sure your playbook/role does not depend
            on this return value!
          example: SWMTKN-1--xxxxx
          returned: success
          type: str
        Worker:
          description:
          - Token to join the cluster as a new *worker* node.
          - B(Note:) if this value has been specified as O(join_token), the value
            here will not be the token, but C(VALUE_SPECIFIED_IN_NO_LOG_PARAMETER).
            If you pass O(join_token), make sure your playbook/role does not depend
            on this return value!
          example: SWMTKN-1--xxxxx
          returned: success
          type: str
      description: Tokens to connect to the Swarm.
      returned: success
      type: dict
    UnlockKey:
      description: The swarm unlock-key if O(autolock_managers=true).
      example: SWMKEY-1-xxx
      returned: on success if O(autolock_managers=true) and swarm is initialised,
        or if O(autolock_managers) has changed.
      type: str
  description: Information about swarm.
  returned: success
  type: dict