community.docker.docker_network_info – Retrieves facts about docker network
Note
This plugin is part of the community.docker collection (version 1.2.2).
To install it use: ansible-galaxy collection install community.docker.
To use it in a playbook, specify: community.docker.docker_network_info.
Synopsis
- Retrieves facts about a docker network.
- Essentially returns the output of docker network inspect <name>, similar to what community.docker.docker_network returns for a non-absent network.
Requirements
The below requirements are needed on the host that executes this module.
- Docker API >= 1.21
- Docker SDK for Python: Please note that the docker-py Python module has been superseded by docker (see here for details).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-pymust be used. Otherwise, it is recommended to install thedockerPython 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_VERSIONwill be used instead. If the environment variable is not set, the default value will be used.aliases: docker_api_version | 
| 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_PATHis set, the fileca.pemfrom the directory specified in the environment variableDOCKER_CERT_PATHwill 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_PATHis set, the filecert.pemfrom the directory specified in the environment variableDOCKER_CERT_PATHwill 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_PATHis set, the filekey.pemfrom the directory specified in the environment variableDOCKER_CERT_PATHwill 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 replacetcpin the connection URL withhttps.If the value is not specified in the task, the value of environment variable  DOCKER_HOSTwill be used instead. If the environment variable is not set, the default value will be used.aliases: docker_url | 
| name  string / required  | The name of the network to inspect. When identifying an existing network name may be a name or a long or short network ID. | |
| 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_VERSIONwill be used instead. | |
| 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_TIMEOUTwill 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  yesas well, it will take precedence.If the value is not specified in the task, the value of environment variable  DOCKER_TLSwill 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_HOSTNAMEwill 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_VERIFYwill 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_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 infos on network
  community.docker.docker_network_info:
    name: mydata
  register: result
- name: Does network exist?
  ansible.builtin.debug:
    msg: "The network {{ 'exists' if result.exists else 'does not exist' }}"
- name: Print information about network
  ansible.builtin.debug:
    var: result.network
  when: result.exists
   Return Values
Common return values are documented here, the following are the fields unique to this module:
| Key | Returned | Description | 
|---|---|---|
| exists  boolean  | always | Returns whether the network exists. Sample: True | 
| network  dictionary  | always | Facts representing the current state of the network. Matches the docker inspection output. Will be  noneif network does not exist.Sample: { "Attachable": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Created": "2018-12-07T01:47:51.250835114-06:00", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Config": [ { "Gateway": "192.168.96.1", "Subnet": "192.168.96.0/20" } ], "Driver": "default", "Options": null }, "Id": "0856968545f22026c41c2c7c3d448319d3b4a6a03a40b148b3ac4031696d1c0a", "Ingress": false, "Internal": false, "Labels": {}, "Name": "ansible-test-f2700bba", "Options": {}, "Scope": "local" } | 
Authors
- Dave Bendit (@DBendit)
    © 2012–2018 Michael DeHaan
© 2018–2021 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
    https://docs.ansible.com/ansible/2.11/collections/community/docker/docker_network_info_module.html