community.docker.docker_api – Run tasks in docker containers

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Ansible/docs/2.10/collections/community/docker/docker api connection


community.docker.docker_api – Run tasks in docker containers

Note

This plugin is part of the community.docker collection (version 1.1.0).

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

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


New in version 1.1.0: of community.docker


Synopsis

  • Run commands or put/fetch files to an existing docker container.
  • Uses Docker SDK for Python to interact directly with the Docker daemon instead of using the Docker CLI. Use the community.docker.docker connection plugin if you want to use the Docker CLI.

Requirements

The below requirements are needed on the local controller node that executes this connection.

  • Docker SDK for Python: Please note that the docker-py Python module has been superseded by docker (see here for details). For Python 2.6, docker-py must be used. Otherwise, it is recommended to install the docker Python module. Note that both modules should not be installed at the same time. Also note that when both modules are installed and one of them is uninstalled, the other might no longer function and a reinstall of it is required.

Parameters

Parameter Choices/Defaults Configuration Comments

api_version

string

Default:

"auto"

var: ansible_docker_api_version

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 DOCKER_API_VERSION will be used instead. If the environment variable is not set, the default value will be used.


aliases: docker_api_version

ca_cert

path

var: ansible_docker_ca_cert

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 DOCKER_CERT_PATH is set, the file ca.pem from the directory specified in the environment variable DOCKER_CERT_PATH will be used.


aliases: tls_ca_cert, cacert_path

client_cert

path

var: ansible_docker_client_cert

Path to the client's TLS certificate file.

If the value is not specified in the task and the environment variable DOCKER_CERT_PATH is set, the file cert.pem from the directory specified in the environment variable DOCKER_CERT_PATH will be used.


aliases: tls_client_cert, cert_path

client_key

path

var: ansible_docker_client_key

Path to the client's TLS key file.

If the value is not specified in the task and the environment variable DOCKER_CERT_PATH is set, the file key.pem from the directory specified in the environment variable DOCKER_CERT_PATH will be used.


aliases: tls_client_key, key_path

debug

boolean

  • no

  • yes

Debug mode

docker_host

string

Default:

"unix://var/run/docker.sock"

var: ansible_docker_docker_host

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.

If the value is not specified in the task, the value of environment variable DOCKER_HOST will be used instead. If the environment variable is not set, the default value will be used.


aliases: docker_url

remote_addr

string

Default:

"inventory_hostname"

var: ansible_host

var: ansible_docker_host

The name of the container you want to access.

remote_user

string

var: ansible_user

var: ansible_docker_user

The user to execute as inside the container.

ssl_version

string

var: ansible_docker_ssl_version

Provide a valid SSL version number. Default value determined by ssl.py module.

If the value is not specified in the task, the value of environment variable DOCKER_SSL_VERSION will be used instead.

timeout

integer

Default:

60

var: ansible_docker_timeout

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 DOCKER_TIMEOUT will be used instead. If the environment variable is not set, the default value will be used.

tls

boolean

  • no

  • yes

var: ansible_docker_tls

Secure the connection to the API by using TLS without verifying the authenticity of the Docker host server. Note that if validate_certs is set to yes as well, it will take precedence.

If the value is not specified in the task, the value of environment variable DOCKER_TLS will be used instead. If the environment variable is not set, the default value will be used.

tls_hostname

string

Default:

"localhost"

var: ansible_docker_tls_hostname

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 DOCKER_TLS_HOSTNAME will be used instead. If the environment variable is not set, the default value will be used.

validate_certs

boolean

  • no

  • yes

var: ansible_docker_validate_certs

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 DOCKER_TLS_VERIFY will be used instead. If the environment variable is not set, the default value will be used.


aliases: tls_verify



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://docs.docker.com/machine/reference/env/ for more details.
  • When connecting to Docker daemon with TLS, you might need to install additional Python packages. For the Docker SDK for Python, version 2.4 or newer, this can be done by installing docker[tls] with ansible.builtin.pip.
  • Note that the Docker SDK for Python only allows to specify the path to the Docker configuration for very few functions. In general, it will use $HOME/.docker/config.json if the DOCKER_CONFIG environment variable is not specified, and use $DOCKER_CONFIG/config.json otherwise.
  • This module uses the Docker SDK for Python to communicate with the Docker daemon.


Authors

  • Felix Fontein (@felixfontein)

© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.10/collections/community/docker/docker_api_connection.html