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community.docker.docker_network module – Manage Docker networks

Note

This module is part of the community.docker collection (version 3.4.11).

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_network.

Synopsis 

Create/remove Docker networks and connect containers to them.
Performs largely the same function as the docker network CLI subcommand.

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
api_version aliases: docker_api_version string	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 `DOCKER_API_VERSION` will be used instead. If the environment variable is not set, the default value will be used. Default: `"auto"`
appends aliases: incremental boolean	By default the connected list is canonical, meaning containers not on the list are removed from the network. Use `appends` to leave existing containers connected. Choices: `false` ← (default) `true`
attachable boolean	If enabled, and the network is in the global scope, non-service containers on worker nodes will be able to connect to the network. Choices: `false` `true`
ca_cert aliases: tls_ca_cert, cacert_path 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.
client_cert aliases: tls_client_cert, cert_path 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.
client_key aliases: tls_client_key, key_path 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.
connected aliases: containers list / elements=string	List of container names or container IDs to connect to a network. Please note that the module only makes sure that these containers are connected to the network, but does not care about connection options. If you rely on specific IP addresses etc., use the community.docker.docker_container module to ensure your containers are correctly connected to this network. Default: `[]`
debug boolean	Debug mode Choices: `false` ← (default) `true`
docker_host aliases: docker_url string	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. Default: `"unix://var/run/docker.sock"`
driver string	Specify the type of network. Docker provides bridge and overlay drivers, but 3rd party drivers can also be used. Default: `"bridge"`
driver_options dictionary	Dictionary of network settings. Consult docker docs for valid options and values. Default: `{}`
enable_ipv6 boolean	Enable IPv6 networking. Choices: `false` `true`
force boolean	With state `absent` forces disconnecting all containers from the network prior to deleting the network. With state `present` will disconnect all containers, delete the network and re-create the network. This option is required if you have changed the IPAM or driver options and want an existing network to be updated to use the new options. Choices: `false` ← (default) `true`
internal boolean	Restrict external access to the network. Choices: `false` `true`
ipam_config list / elements=dictionary	List of IPAM config blocks. Consult Docker docs for valid options and values. Note that `ipam_config[].iprange` is spelled differently here (we use the notation from the Docker SDK for Python).
aux_addresses dictionary	Auxiliary IP addresses used by Network driver, as a mapping from hostname to IP.
gateway string	IP gateway address.
iprange string	IP address range in CIDR notation.
subnet string	IP subset in CIDR notation.
ipam_driver string	Specify an IPAM driver.
ipam_driver_options dictionary	Dictionary of IPAM driver options.
labels dictionary	Dictionary of labels. Default: `{}`
name aliases: network_name string / required	Name of the network to operate on.
scope string	Specify the network’s scope. Choices: `"local"` `"global"` `"swarm"`
ssl_version string	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 `DOCKER_SSL_VERSION` will be used instead.
state string	`absent` deletes the network. If a network has connected containers, it cannot be deleted. Use the `force` option to disconnect all containers and delete the network. `present` creates the network, if it does not already exist with the specified parameters, and connects the list of containers provided via the connected parameter. Containers not on the list will be disconnected. An empty list will leave no containers connected to the network. Use the `appends` option to leave existing containers connected. Use the `force` options to force re-creation of the network. Choices: `"absent"` `"present"` ← (default)
timeout integer	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. Default: `60`
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 `true` 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. Choices: `false` ← (default) `true`
tls_hostname string	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. Note that this option had a default value `localhost` in older versions. It was removed in community.docker 3.0.0.
use_ssh_client boolean added in community.docker 1.5.0	For SSH transports, use the `ssh` CLI tool instead of paramiko. Choices: `false` ← (default) `true`
validate_certs aliases: tls_verify 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. Choices: `false` ← (default) `true`

Attributes 

Attribute	Support	Description
action_group	Action groups: community.docker.docker, docker	Use `group/docker` or `group/community.docker.docker` in `module_defaults` to set defaults for this module.
check_mode	Support: full	Can run in `check_mode` and return changed status prediction without modifying target.
diff_mode	Support: full	Will return details on what has changed (or possibly needs changing in `check_mode`), when in diff mode.

Notes 

Note

When network options are changed, the module disconnects all containers from the network, deletes the network, and re-creates the network. It does not try to reconnect containers, except the ones listed in (connected, and even for these, it does not consider specific connection options like fixed IP addresses or MAC addresses. If you need more control over how the containers are connected to the network, loop the community.docker.docker_container module to loop over your containers to make sure they are connected properly.
The module does not support Docker Swarm. This means that it will not try to disconnect or reconnect services. If services are connected to the network, deleting the network will fail. When network options are changed, the network has to be deleted and recreated, so this will fail as well.
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 and DOCKER_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: Create a network
  community.docker.docker_network:
    name: network_one

- name: Remove all but selected list of containers
  community.docker.docker_network:
    name: network_one
    connected:
      - container_a
      - container_b
      - container_c

- name: Remove a single container
  community.docker.docker_network:
    name: network_one
    connected: "{{ fulllist|difference(['container_a']) }}"

- name: Add a container to a network, leaving existing containers connected
  community.docker.docker_network:
    name: network_one
    connected:
      - container_a
    appends: true

- name: Create a network with driver options
  community.docker.docker_network:
    name: network_two
    driver_options:
      com.docker.network.bridge.name: net2

- name: Create a network with custom IPAM config
  community.docker.docker_network:
    name: network_three
    ipam_config:
      - subnet: 172.23.27.0/24
        gateway: 172.23.27.2
        iprange: 172.23.27.0/26
        aux_addresses:
          host1: 172.23.27.3
          host2: 172.23.27.4

- name: Create a network with labels
  community.docker.docker_network:
    name: network_four
    labels:
      key1: value1
      key2: value2

- name: Create a network with IPv6 IPAM config
  community.docker.docker_network:
    name: network_ipv6_one
    enable_ipv6: true
    ipam_config:
      - subnet: fdd1:ac8c:0557:7ce1::/64

- name: Create a network with IPv6 and custom IPv4 IPAM config
  community.docker.docker_network:
    name: network_ipv6_two
    enable_ipv6: true
    ipam_config:
      - subnet: 172.24.27.0/24
      - subnet: fdd1:ac8c:0557:7ce2::/64

- name: Delete a network, disconnecting all containers
  community.docker.docker_network:
    name: network_one
    state: absent
    force: true

Return Values 

Common return values are documented here, the following are the fields unique to this module:

Key	Description
network dictionary	Network inspection results for the affected network. Returned: success Sample: `{}`

Authors

Ben Keith (@keitwb)
Chris Houseknecht (@chouseknecht)
Dave Bendit (@DBendit)

community.docker.docker_network module – Manage Docker networks

Synopsis

Requirements

Parameters

Attributes

Notes

Examples

Return Values