community.docker.docker_node_info module – Retrieves facts about docker swarm node from Swarm Manager
Note
This module is part of the community.docker collection (version 3.13.3).
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_node_info.
Synopsis
Retrieves facts about a docker node.
Essentially returns the output of
docker node inspect <name>.Must be executed on a host running as Swarm Manager, otherwise the module will fail.
Requirements
The below requirements are needed on the host that executes this module.
Docker API >= 1.25
Docker SDK for Python: Please note that the docker-py Python module has been superseded by docker (see here for details). 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 >= 2.4.0
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: |
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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 |
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Path to the client’s TLS certificate file. If the value is not specified in the task and the environment variable |
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Path to the client’s TLS key file. If the value is not specified in the task and the environment variable |
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Debug mode Choices:
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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: |
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The name of the node to inspect. The list of nodes names to inspect. If empty then return information of all nodes in Swarm cluster. When identifying the node use either the hostname of the node (as registered in Swarm) or node ID. If |
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Provide a valid SSL version number. Default value determined by SSL Python module. If the value is not specified in the task, the value of environment variable Note: this option is no longer supported for Docker SDK for Python 7.0.0+. Specifying it with Docker SDK for Python 7.0.0 or newer will lead to an error. |
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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: |
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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:
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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 Note: this option is no longer supported for Docker SDK for Python 7.0.0+. Specifying it with Docker SDK for Python 7.0.0 or newer will lead to an error. |
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For SSH transports, use the Requires Docker SDK for Python 4.4.0 or newer. Choices:
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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:
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Attributes
Attribute |
Support |
Description |
|---|---|---|
Action groups: community.docker.docker, docker |
Use |
|
Support: full This action does not modify state. |
Can run in |
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Support: N/A This action does not modify state. |
Will return details on what has changed (or possibly needs changing in |
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_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.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
$HOME/.docker/config.jsonif theDOCKER_CONFIGenvironment variable is not specified, and use$DOCKER_CONFIG/config.jsonotherwise.This module uses the Docker SDK for Python to communicate with the Docker daemon.
Examples
- name: Get info on all nodes
community.docker.docker_node_info:
register: result
- name: Get info on node
community.docker.docker_node_info:
name: mynode
register: result
- name: Get info on list of nodes
community.docker.docker_node_info:
name:
- mynode1
- mynode2
register: result
- name: Get info on host if it is Swarm Manager
community.docker.docker_node_info:
self: true
register: result
Return Values
Common return values are documented here, the following are the fields unique to this module:
Key |
Description |
|---|---|
Facts representing the current state of the nodes. Matches the Can contain multiple entries if more than one node provided in If Returned: always |