infra/roles/docker/templates/docker-compose.yml.j2

# {{ ansible_managed }}
---
version: "{{ compose_schema_version | default('3') }}"
services:
{% for container in containers %}
{% if container.active and container.service_name == item %}
  {{ container.service_name }}:
    image: {{ container.image }}
    container_name: {{ container.container_name | default(container.service_name) }}
{% if container.extra_hosts is defined %}
    extra_hosts:
{% for host in container.extra_hosts %}
      - {{ host }}
{% endfor %}
{% endif %}
{% if container.network_mode is defined %}
    network_mode: {{ container.network_mode }}
{% endif %}
{% if container.privileged is defined %}
    privileged: {{ container.privileged }}
{% endif %}
{% if container.cap_add is defined %}
    cap_add: 
{% for cap in container.cap_add %}
      - {{ cap }}
{% endfor %}
{% endif %}
{% if container.devices is defined %}
    devices:
{% for device in container.devices %}
      - {{ device }}
{% endfor %}
{% endif %}
{% if container.volumes is defined %}
    volumes:
{% for volume in container.volumes %}
      - {{ volume }}
{% endfor %}
{% endif %}
{% if container.labels is defined %}
    labels:
{% for label in container.labels %}
      - {{ label }}
{% endfor %}
{% endif %}
{% if container.ports is defined %}
    ports:
{% for port in container.ports %}
      - "{{ port }}" # https://github.com/go-yaml/yaml/issues/34#issuecomment-55772666
{% endfor %}
{% endif %}
{% if ( container.environment is defined ) or ( container.include_global_env_vars is defined and container.include_global_env_vars) %}
    environment:
{% if container.include_global_env_vars | default(false) %}
{% for global_var in global_env_vars %}
      - {{ global_var }}
{% endfor %}
{% endif %}
{% if container.environment is defined %}
{% for env_var in container.environment %}
      - {{ env_var }}
{% endfor %}
{% endif %}
{% endif %}
{% if container.depends_on is defined %}
    depends_on:
{% for dependent in container.depends_on %}
      - {{ dependent }}
{% endfor %}
{% endif %}
{% if container.hostname is defined %}
    hostname: {{ container.hostname }}
{% endif %}
{% if container.mem_limit is defined %}
    mem_limit: {{ container.mem_limit }}
{% endif %}
{% if container.command is defined %}
    command:
{% for command in container.command %}
      - {{ command }}
{% endfor %}
{% endif %}
{% if container.security_opt is defined %}
    security_opt:
{% for sec_opt in container.security_opt %}
      - {{ sec_opt }}
{% endfor %}
{% endif %}
{% if container.sysctl is defined %}
    sysctls:
{% for param in container.sysctl %}
      - {{ param }}
{% endfor %}
{% endif %}
{% if container.shm_size is defined %}
    shm_size: {{ container.shm_size }}
{% endif %}
{% if container.dns is defined %}
    dns:
{% for dns_entry in container.dns %}
      - {{ dns_entry }}
{% endfor %}
{% endif %}
{% if container.restart is defined %}
    restart: {{ container.restart }}
{% endif %}
{% endif %}
{% if container.networks is defined and container.service_name == item %}
    networks:
{% for network in container.networks %}
      - {{ network }}
{% endfor %}
{% endif %}
{% endfor %}

{% if container_networks is defined %}
networks:
{% for network in container_networks %}
  {{ network.name }}:
    external: true
{% endfor %}
{% endif %}