community.docker.docker_image_info module – Inspect docker images
Note
This module is part of the community.docker collection (version 4.0.1).
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.
You need further requirements to be able to use this module,
see Requirements for details.
To use it in a playbook, specify: community.docker.docker_image_info.
Synopsis
Provide one or more image names, and the module will inspect each, returning an array of inspection results.
If an image does not exist locally, it will not appear in the results. If you want to check whether an image exists locally, you can call the module with the image name, then check whether the result list is empty (image does not exist) or has one element (the image exists locally).
The module will not attempt to pull images from registries. Use community.docker.docker_image with
source=pullto ensure an image is pulled.
Requirements
The below requirements are needed on the host that executes this module.
Docker API >= 1.25
backports.ssl_match_hostname (when using TLS on Python 2)
paramiko (when using SSH with
use_ssh_client=false)pyOpenSSL (when using TLS)
pywin32 (when using named pipes on Windows 32)
requests
Parameters
Parameter |
Comments |
|---|---|
The version of the Docker API running on the Docker Host. Defaults to the latest version of the API supported by this collection and the docker daemon. If the value is not specified in the task, the value of environment variable Default: |
|
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 This option was called |
|
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: |
|
An image name or a list of image names. Name format will be If no name is provided, a list of all images will be returned. |
|
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: |
|
Secure the connection to the API by using TLS without verifying the authenticity of the Docker host server. Note that if 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 Note that this option had a default value |
|
For SSH transports, use the 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:
|
Attributes
Attribute |
Support |
Description |
|---|---|---|
Action groups: community.docker.docker, docker |
Use |
|
Support: full This action does not modify state. |
Can run in |
|
Support: N/A This action does not modify state. |
Will return details on what has changed (or possibly needs changing in |
Notes
Note
This module was called
docker_image_factsbefore Ansible 2.8. The usage did not change.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_TLS,DOCKER_TLS_VERIFYandDOCKER_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.This module does not use the Docker SDK for Python to communicate with the Docker daemon. It uses code derived from the Docker SDK or Python that is included in this collection.
Examples
- name: Inspect a single image
community.docker.docker_image_info:
name: pacur/centos-7
- name: Inspect multiple images
community.docker.docker_image_info:
name:
- pacur/centos-7
- sinatra
register: result
- name: Make sure that both images pacur/centos-7 and sinatra exist locally
ansible.builtin.assert:
that:
- result.images | length == 2
Return Values
Common return values are documented here, the following are the fields unique to this module:
Key |
Description |
|---|---|
Inspection results for the selected images. The list only contains inspection results of images existing locally. Returned: always Sample: |