community.general.docker_image – Manage docker images.¶

Note

This plugin is part of the community.general collection (version 1.3.6).

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

To use it in a playbook, specify: community.general.docker_image.

Synopsis
Requirements
Parameters
Notes
Examples
Return Values

Synopsis ¶

Build, load or pull an image, making the image available for creating containers. Also supports tagging an image into a repository and archiving an image to a .tar file.
Since Ansible 2.8, it is recommended to explicitly specify the image’s source (source can be build, load, pull or local). This will be required from community.general 2.0.0 on.

Requirements ¶

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

Docker API >= 1.20
Docker SDK for Python: Please note that the docker-py Python module has been superseded by docker (see here for details).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.
Docker SDK for Python >= 1.8.0 (use docker-py for Python 2.6)

Parameters ¶

Parameter			Choices/Defaults	Comments
api_version string			Default: "auto"	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
archive_path path				Use with state `present` to archive an image to a .tar file.
build dictionary				Specifies options used for building images.
	args dictionary			Provide a dictionary of `key:value` build arguments that map to Dockerfile ARG directive. Docker expects the value to be a string. For convenience any non-string values will be converted to strings. Requires Docker API >= 1.21.
	cache_from list / elements=string			List of image names to consider as cache source.
	container_limits dictionary			A dictionary of limits applied to each container created by the build process.
		cpusetcpus string		CPUs in which to allow execution, e.g., "0-3", "0,1".
		cpushares integer		CPU shares (relative weight).
		memory integer		Set memory limit for build.
		memswap integer		Total memory (memory + swap), -1 to disable swap.
	dockerfile string			Use with state `present` and source `build` to provide an alternate name for the Dockerfile to use when building an image. This can also include a relative path (relative to path).
	etc_hosts dictionary			Extra hosts to add to `/etc/hosts` in building containers, as a mapping of hostname to IP address.
	http_timeout integer			Timeout for HTTP requests during the image build operation. Provide a positive integer value for the number of seconds.
	network string			The network to use for `RUN` build instructions.
	nocache boolean		Choices: no ← yes	Do not use cache when building an image.
	path path / required			Use with state 'present' to build an image. Will be the path to a directory containing the context and Dockerfile for building an image.
	pull boolean		Choices: no yes	When building an image downloads any updates to the FROM image in Dockerfile. The default is currently `yes`. This will change to `no` in community.general 2.0.0.
	rm boolean		Choices: no yes ←	Remove intermediate containers after build.
	target string			When building an image specifies an intermediate build stage by name as a final stage for the resulting image.
	use_config_proxy boolean		Choices: no yes	If set to `yes` and a proxy configuration is specified in the docker client configuration (by default `$HOME/.docker/config.json`), the corresponding environment variables will be set in the container being built. Needs Docker SDK for Python >= 3.7.0.
buildargs dictionary				Provide a dictionary of `key:value` build arguments that map to Dockerfile ARG directive. Docker expects the value to be a string. For convenience any non-string values will be converted to strings. Requires Docker API >= 1.21. Please use build.args instead. This option will be removed in community.general 2.0.0.
ca_cert path				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				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				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
container_limits dictionary				A dictionary of limits applied to each container created by the build process. Please use build.container_limits instead. This option will be removed in community.general 2.0.0.
	cpusetcpus string			CPUs in which to allow execution, e.g., "0-3", "0,1".
	cpushares integer			CPU shares (relative weight).
	memory integer			Set memory limit for build.
	memswap integer			Total memory (memory + swap), -1 to disable swap.
debug boolean			Choices: no ← yes	Debug mode
docker_host string			Default: "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`. 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
dockerfile string				Use with state `present` and source `build` to provide an alternate name for the Dockerfile to use when building an image. This can also include a relative path (relative to path). Please use build.dockerfile instead. This option will be removed in community.general 2.0.0.
force boolean			Choices: no yes	Use with state absent to un-tag and remove all images matching the specified name. Use with state `present` to build, load or pull an image when the image already exists. Also use with state `present` to force tagging an image. Please stop using this option, and use the more specialized force options force_source, force_absent and force_tag instead. This option will be removed in community.general 2.0.0.
force_absent boolean			Choices: no ← yes	Use with state absent to un-tag and remove all images matching the specified name.
force_source boolean			Choices: no ← yes	Use with state `present` to build, load or pull an image (depending on the value of the source option) when the image already exists.
force_tag boolean			Choices: no ← yes	Use with state `present` to force tagging an image.
http_timeout integer				Timeout for HTTP requests during the image build operation. Provide a positive integer value for the number of seconds. Please use build.http_timeout instead. This option will be removed in community.general 2.0.0.
load_path path				Use with state `present` to load an image from a .tar file. Set source to `load` if you want to load the image. The option will be set automatically before community.general 2.0.0 if this option is used (except if path is specified as well, in which case building will take precedence). From community.general 2.0.0 on, you have to set source to `load`.
name string / required				Image name. Name format will be one of: name, repository/name, registry_server:port/name. When pushing or pulling an image the name can optionally include the tag by appending ':tag_name'. Note that image IDs (hashes) are not supported.
nocache boolean			Choices: no ← yes	Do not use cache when building an image. Please use build.nocache instead. This option will be removed in community.general 2.0.0.
path path				Use with state 'present' to build an image. Will be the path to a directory containing the context and Dockerfile for building an image. Set source to `build` if you want to build the image. The option will be set automatically before community.general 2.0.0 if this option is used. From community.general 2.0.0 on, you have to set source to `build`. Please use build.path instead. This option will be removed in community.general 2.0.0. aliases: build_path
pull boolean			Choices: no yes	When building an image downloads any updates to the FROM image in Dockerfile. Please use build.pull instead. This option will be removed in community.general 2.0.0. The default is currently `yes`. This will change to `no` in community.general 2.0.0.
push boolean			Choices: no ← yes	Push the image to the registry. Specify the registry as part of the name or repository parameter.
repository string				Full path to a repository. Use with state `present` to tag the image into the repository. Expects format repository:tag. If no tag is provided, will use the value of the `tag` parameter or latest.
rm boolean			Choices: no yes ←	Remove intermediate containers after build. Please use build.rm instead. This option will be removed in community.general 2.0.0.
source string			Choices: build load pull local	Determines where the module will try to retrieve the image from. Use `build` to build the image from a `Dockerfile`. build.path must be specified when this value is used. Use `load` to load the image from a `.tar` file. load_path must be specified when this value is used. Use `pull` to pull the image from a registry. Use `local` to make sure that the image is already available on the local docker daemon, i.e. do not try to build, pull or load the image. Before community.general 2.0.0, the value of this option will be auto-detected to be backwards compatible, but a warning will be issued if it is not explicitly specified. From community.general 2.0.0 on, auto-detection will be disabled and this option will be made mandatory.
ssl_version string				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.
state string			Choices: absent present ← build	Make assertions about the state of an image. When `absent` an image will be removed. Use the force option to un-tag and remove all images matching the provided name. When `present` check if an image exists using the provided name and tag. If the image is not found or the force option is used, the image will either be pulled, built or loaded, depending on the source option. By default the image will be pulled from Docker Hub, or the registry specified in the image's name. Note that this will change in community.general 2.0.0, so to make sure that you are pulling, set source to `pull`. To build the image, provide a path value set to a directory containing a context and Dockerfile, and set source to `build`. To load an image, specify load_path to provide a path to an archive file. To tag an image to a repository, provide a repository path. If the name contains a repository path, it will be pushed. Note: `state=build` is DEPRECATED and will be removed in community.general 2.0.0. Specifying `build` will behave the same as `present`.
tag string			Default: "latest"	Used to select an image when pulling. Will be added to the image when pushing, tagging or building. Defaults to latest. If name parameter format is name:tag, then tag value from name will take precedence.
timeout integer			Default: 60	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			Choices: no ← yes	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"	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.
use_tls string			Choices: no encrypt verify	DEPRECATED. Whether to use tls to connect to the docker daemon. Set to `encrypt` to use TLS. And set to `verify` to use TLS and verify that the server's certificate is valid for the server. Note: If you specify this option, it will set the value of the tls or validate_certs parameters if not set to `no`. Will be removed in community.general 2.0.0.
validate_certs boolean			Choices: no ← yes	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.

Examples ¶

- name: Pull an image
  community.general.docker_image:
    name: pacur/centos-7
    source: pull

- name: Tag and push to docker hub
  community.general.docker_image:
    name: pacur/centos-7:56
    repository: dcoppenhagan/myimage:7.56
    push: yes
    source: local

- name: Tag and push to local registry
  community.general.docker_image:
    # Image will be centos:7
    name: centos
    # Will be pushed to localhost:5000/centos:7
    repository: localhost:5000/centos
    tag: 7
    push: yes
    source: local

- name: Add tag latest to image
  community.general.docker_image:
    name: myimage:7.1.2
    repository: myimage:latest
    # As 'latest' usually already is present, we need to enable overwriting of existing tags:
    force_tag: yes
    source: local

- name: Remove image
  community.general.docker_image:
    state: absent
    name: registry.ansible.com/chouseknecht/sinatra
    tag: v1

- name: Build an image and push it to a private repo
  community.general.docker_image:
    build:
      path: ./sinatra
    name: registry.ansible.com/chouseknecht/sinatra
    tag: v1
    push: yes
    source: build

- name: Archive image
  community.general.docker_image:
    name: registry.ansible.com/chouseknecht/sinatra
    tag: v1
    archive_path: my_sinatra.tar
    source: local

- name: Load image from archive and push to a private registry
  community.general.docker_image:
    name: localhost:5000/myimages/sinatra
    tag: v1
    push: yes
    load_path: my_sinatra.tar
    source: load

- name: Build image and with build args
  community.general.docker_image:
    name: myimage
    build:
      path: /path/to/build/dir
      args:
        log_volume: /var/log/myapp
        listen_port: 8080
    source: build

- name: Build image using cache source
  community.general.docker_image:
    name: myimage:latest
    build:
      path: /path/to/build/dir
      # Use as cache source for building myimage
      cache_from:
        - nginx:latest
        - alpine:3.8
    source: build

Return Values ¶

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

Key	Returned	Description
image dictionary	success	Image inspection results for the affected image.
stdout string added in 1.3.0 of community.general	success	Docker build output when building an image.

Authors¶

Pavel Antonov (@softzilla)
Chris Houseknecht (@chouseknecht)
Sorin Sbarnea (@ssbarnea)

community.general.docker_image – Manage docker images.¶

Synopsis¶

Requirements¶

Parameters¶

Notes¶

Examples¶

Return Values¶