community.docker.docker_containers – Ansible dynamic inventory plugin for Docker containers.

• Synopsis
• Requirements
• Parameters
• Notes
• Examples

Synopsis

• Reads inventories from the Docker API.
• Uses a YAML configuration file that ends with docker.[yml|yaml].

Requirements

The below requirements are needed on the local controller node that executes this inventory.

• Docker SDK for Python: Please note that the docker-py Python module has been superseded by docker (see here for details).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 the docker 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 >= 1.10.0

Parameters

Notes

Examples

# Minimal example using local Docker daemon
plugin: community.docker.docker_containers
docker_host: unix://var/run/docker.sock

# Minimal example using remote Docker daemon
plugin: community.docker.docker_containers
docker_host: tcp://my-docker-host:2375

# Example using remote Docker daemon with unverified TLS
plugin: community.docker.docker_containers
docker_host: tcp://my-docker-host:2376
tls: true

# Example using remote Docker daemon with verified TLS and client certificate verification
plugin: community.docker.docker_containers
docker_host: tcp://my-docker-host:2376
validate_certs: true
ca_cert: /somewhere/ca.pem
client_key: /somewhere/key.pem
client_cert: /somewhere/cert.pem

# Example using constructed features to create groups
plugin: community.docker.docker_containers
docker_host: tcp://my-docker-host:2375
strict: false
keyed_groups:
  # Add containers with primary network foo to a network_foo group
  - prefix: network
    key: 'docker_hostconfig.NetworkMode'
  # Add Linux hosts to an os_linux group
  - prefix: os
    key: docker_platform

# Example using SSH connection with an explicit fallback for when port 22 hasn't been
# exported: use container name as ansible_ssh_host and 22 as ansible_ssh_port
plugin: community.docker.docker_containers
connection_type: ssh
compose:
  ansible_ssh_host: ansible_ssh_host | default(docker_name[1:], true)
  ansible_ssh_port: ansible_ssh_port | default(22, true)

Authors

• Felix Fontein (@felixfontein)