Docker Manage

Manager networks, containers and volume files purely through inventory.

Requirements

The same requirements as the docker_container role: http://docs.ansible.com/ansible/docker_container_module.html#docker-container

Currently:

• python >= 2.6
• docker-py >= 1.7.0
• Docker API >= 1.20

Role Variables

# a list of networks to setup on the node, see http://docs.ansible.com/ansible/docker_network_module.html for options
docker_networks:
  - name: custom_net
    driver: overlay

# a list of containers to run on the node, for example here we start prometheus and grafana
docker_containers:
  # all the options from the docker_container module (http://docs.ansible.com/ansible/docker_container_module.html)
  # can be defined here, the only extra one is "sync_files" that will invoke the copy module with the proper options
  # before starting the container, "sync_templates" does the thing but runs the template module
  - name: prometheus
    image: "prom/prometheus"
    volumes:
      - "/etc/prometheus.yml:/etc/prometheus/prometheus.yml"
    sync_files:
      - src: prometheus.yml
        dest: /etc/prometheus.yml
        mode: 0644
  # graphana to read the logs from prometheus
  - name: grafana
    image: grafana/grafana:4.1.1
    links:
      - prometheus
    published_ports:
      - "3000:3000"
    sync_templates:
      - src: some_file.json.j2
        dest: /etc/some_file.json

Example Playbook

Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:

# run grafana in a container
- hosts: grafana
  roles:
    - role: AerisCloud.docker-manage
      docker_containers:
        - name: grafana
          image: grafana/grafana
          published_ports:
            - "3000:3000"

Missing Features

• Reload/Restart container on file change (user action is expected)
• docker secret management (not supported by module)
• docker service management (not supported by module, current docker_service module is not swarm mode)

License

MIT