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community.docker.docker_image – Manage docker images.
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_image
.
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.
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- Docker SDK for Python: Please note that the docker-py Python module has been superseded by docker (see here for details).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 | 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
|
|
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.
|
|||
platform
string
added in 1.1.0 of community.docker
|
Platform in the format os[/arch[/variant]] .
|
|||
pull
boolean
|
|
When building an image downloads any updates to the FROM image in Dockerfile.
|
||
rm
boolean
|
|
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
|
|
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.
|
||
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 |
|||
debug
boolean
|
|
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 |
||
force_absent
boolean
|
|
Use with state absent to un-tag and remove all images matching the specified name.
|
||
force_source
boolean
|
|
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
|
|
Use with state present to force tagging an image.
|
||
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.
|
|||
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.
|
|||
push
boolean
|
|
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.
|
|||
source
string
|
|
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.
|
||
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
|
|
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.
|
||
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
|
|
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.
|
||
validate_certs
boolean
|
|
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
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
- 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 | Returned | Description |
---|---|---|
image
dictionary
|
success |
Image inspection results for the affected image.
|
stdout
string
added in 1.0.0 of community.docker
|
success |
Docker build output when building an image.
|
Authors
- Pavel Antonov (@softzilla)
- Chris Houseknecht (@chouseknecht)
- Sorin Sbarnea (@ssbarnea)
© 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_image_module.html