community.docker.docker_image – Manage docker images
Note
This plugin is part of the community.docker collection (version 1.10.2).
You might already have this collection installed if you are using the ansible
package.
It is not included in ansible-core
.
To check whether it is installed, run ansible-galaxy collection list
.
To install it, use: ansible-galaxy collection install community.docker
.
To use it in a playbook, specify: community.docker.docker_image
.
Synopsis
Build, load or pull an image, making the image available for creating containers. Also supports tagging an image, pushing an image, and archiving an image to a
.tar
file.
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Docker SDK for Python: Please note that the docker-py Python module has been superseded by docker (see here for details).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 thedocker
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 |
Comments |
---|---|
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 Default: “auto” |
|
Use with state |
|
Specifies options used for building images. |
|
Provide a dictionary of Docker expects the value to be a string. For convenience any non-string values will be converted to strings. Requires Docker API >= 1.21. |
|
List of image names to consider as cache source. |
|
A dictionary of limits applied to each container created by the build process. |
|
CPUs in which to allow execution, e.g., “0-3”, “0,1”. |
|
CPU shares (relative weight). |
|
Set memory limit for build. |
|
Total memory (memory + swap), -1 to disable swap. |
|
Use with state This can also include a relative path (relative to path). |
|
Extra hosts to add to |
|
Timeout for HTTP requests during the image build operation. Provide a positive integer value for the number of seconds. |
|
The network to use for |
|
Do not use cache when building an image. Choices:
|
|
Use with state ‘present’ to build an image. Will be the path to a directory containing the context and Dockerfile for building an image. |
|
Platform in the format |
|
When building an image downloads any updates to the FROM image in Dockerfile. Choices:
|
|
Remove intermediate containers after build. Choices:
|
|
When building an image specifies an intermediate build stage by name as a final stage for the resulting image. |
|
If set to Needs Docker SDK for Python >= 3.7.0. Choices:
|
|
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 |
|
Path to the client’s TLS certificate file. If the value is not specified in the task and the environment variable |
|
Path to the client’s TLS key file. If the value is not specified in the task and the environment variable |
|
Debug mode Choices:
|
|
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, If the value is not specified in the task, the value of environment variable Default: “unix://var/run/docker.sock” |
|
Use with state absent to un-tag and remove all images matching the specified name. Choices:
|
|
Use with state Choices:
|
|
Use with state Choices:
|
|
Use with state Set source to |
|
Image name. Name format will be one of: Note that image IDs (hashes) are only supported for state=absent, for state=present with source=load, and for state=present with source=local. |
|
Specifies options used for pulling images. |
|
When pulling an image, ask for this specific platform. Note that this value is not used to determine whether the image needs to be pulled. This might change in the future in a minor release, though. |
|
Push the image to the registry. Specify the registry as part of the name or repository parameter. Choices:
|
|
Use with state Expects format If push=true, repository must either include a registry, or will be assumed to belong to the default registry (Docker Hub). |
|
Determines where the module will try to retrieve the image from. Use Use Use Use Choices:
|
|
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 |
|
Make assertions about the state of an image. When When Choices:
|
|
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. Default: “latest” |
|
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 Default: 60 |
|
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 If the value is not specified in the task, the value of environment variable Choices:
|
|
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 The current default value is |
|
For SSH transports, use the Requires Docker SDK for Python 4.4.0 or newer. Choices:
|
|
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 Choices:
|
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
andDOCKER_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
$HOME/.docker/config.json
if theDOCKER_CONFIG
environment variable is not specified, and use$DOCKER_CONFIG/config.json
otherwise.This module uses the Docker SDK for Python to communicate with the Docker daemon.
Examples
- name: Pull an image
community.docker.docker_image:
name: pacur/centos-7
source: pull
# Select platform for pulling. If not specified, will pull whatever docker prefers.
pull:
platform: amd64
- name: Tag and push to docker hub
community.docker.docker_image:
name: pacur/centos-7:56
repository: dcoppenhagan/myimage:7.56
push: yes
source: local
- name: Tag and push to local registry
community.docker.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.docker.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.docker.docker_image:
state: absent
name: registry.ansible.com/chouseknecht/sinatra
tag: v1
- name: Build an image and push it to a private repo
community.docker.docker_image:
build:
path: ./sinatra
name: registry.ansible.com/chouseknecht/sinatra
tag: v1
push: yes
source: build
- name: Archive image
community.docker.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.docker.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.docker.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.docker.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 |
Description |
---|---|
Image inspection results for the affected image. Returned: success Sample: {} |
|
Docker build output when building an image. Returned: success Sample: “” |
Authors
Pavel Antonov (@softzilla)
Chris Houseknecht (@chouseknecht)
Sorin Sbarnea (@ssbarnea)