Documentation

docker_login - Log into a Docker registry.

New in version 2.0.

Synopsis

  • Provides functionality similar to the “docker login” command.
  • Authenticate with a docker registry and add the credentials to your local Docker config file. Adding the credentials to the config files allows future connections to the registry using tools such as Ansible’s Docker modules, the Docker CLI and docker-py without needing to provide credentials.
  • Running in check mode will perform the authentication without updating the config file.

Requirements (on host that executes module)

  • python >= 2.6
  • docker-py >= 1.7.0
  • Docker API >= 1.20
  • Only to be able to logout (state=absent): the docker command line utility

Options

parameter required default choices comments
api_version
 no default provided by docker-py
The version of the Docker API running on the Docker Host. Defaults to the latest version of the API supported by docker-py.

aliases: docker_api_version
cacert_path
 no
Use a CA certificate when performing server verification by providing the path to a CA certificate file.

aliases: tls_ca_cert
cert_path
 no
Path to the client's TLS certificate file.

aliases: tls_client_cert
config_path
 no ~/.docker/config.json
Custom path to the Docker CLI configuration file.

aliases: self.config_path, dockercfg_path
docker_host
 no unix://var/run/docker.sock
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, 'tcp://192.0.2.23:2376'. If TLS is used to encrypt the connection, the module will automatically replace 'tcp' in the connection URL with 'https'.

aliases: docker_url
email
 no None
The email address for the registry account. NOTE: private registries may not require this, but Docker Hub requires it.
key_path
 no
Path to the client's TLS key file.

aliases: tls_client_key
password
 yes
The plaintext password for the registry account
reauthorize
 no
  • yes
  • no
Refresh exiting authentication found in the configuration file.

aliases: reauth
registry_url
 no https://index.docker.io/v1/
The registry URL.

aliases: registry, url
ssl_version
 no 1.0
Provide a valid SSL version number. Default value determined by docker-py, currently 1.0.
state
(added in 2.3)
 no present
  • present
  • absent
This controls the current state of the user. present will login in a user, absent will log him out.
To logout you only need the registry server, which defaults to DockerHub.
Before 2.1 you could ONLY log in.
docker does not support 'logout' with a custom config file.
timeout
 no 60
The maximum amount of time in seconds to wait on a response from the API.
tls
 no
Secure the connection to the API by using TLS without verifying the authenticity of the Docker host server.
tls_hostname
 no localhost
When verifying the authenticity of the Docker Host server, provide the expected name of the server.
tls_verify
 no
Secure the connection to the API by using TLS and verifying the authenticity of the Docker host server.
username
 yes
The username for the registry account

Examples

- name: Log into DockerHub
  docker_login:
    username: docker
    password: rekcod
    email: docker@docker.io

- name: Log into private registry and force re-authorization
  docker_login:
    registry: your.private.registry.io
    username: yourself
    password: secrets3
    reauthorize: yes

- name: Log into DockerHub using a custom config file
  docker_login:
    username: docker
    password: rekcod
    email: docker@docker.io
    config_path: /tmp/.mydockercfg

- name: Log out of DockerHub
  docker_login:
    state: absent
    email: docker@docker.com

Return Values

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

name description returned type sample
login_results
Results from the login.
 when state='present' dict {'username': 'testuser', 'password': 'VALUE_SPECIFIED_IN_NO_LOG_PARAMETER', 'email': 'testuer@yahoo.com', 'serveraddress': 'localhost:5000'}


Notes

Note

  • Connect to the Docker daemon by providing parameters with each task or by defining environment variables. You can define DOCKER_HOST, DOCKER_TLS_HOSTNAME, DOCKER_API_VERSION, DOCKER_CERT_PATH, DOCKER_SSL_VERSION, DOCKER_TLS, DOCKER_TLS_VERIFY and DOCKER_TIMEOUT. If you are using docker machine, run the script shipped with the product that sets up the environment. It will set these variables for you. See https://docker-py.readthedocs.org/en/stable/machine/ for more details.

Status

This module is flagged as preview which means that it is not guaranteed to have a backwards compatible interface.

For help in developing on modules, should you be so inclined, please read Community Information & Contributing, Testing Ansible and Developing Modules.