ansible.infra.services/roles/powerdns.pdns/molecule/resources/create.yml

---

- name: Create
  hosts: localhost
  connection: local
  gather_facts: False
  vars_files:
    - vars/molecule.yml
  tasks:

    - set_fact:
        molecule_service_instances: "{{ molecule_yml.platforms | selectattr('is_service', 'defined') | selectattr('is_service') | list }}"
    - set_fact:
        molecule_platform_instances: "{{ molecule_yml.platforms | difference(molecule_service_instances) }}"

    - name: Create Dockerfiles from image names
      template:
        src: "Dockerfile.{{ item.dockerfile_tpl | default('default') }}.j2"
        dest: "{{ molecule_ephemeral_directory }}/Dockerfile_{{ item.image | regex_replace('[^a-zA-Z0-9_]', '_') }}"
      with_items: "{{ molecule_platform_instances }}"
      register: platforms

    - name: Discover local Docker images
      docker_image_facts:
        name: "molecule_pdns/{{ item.item.name }}"
      with_items: "{{ platforms.results }}"
      register: docker_images

    - name: Build an Ansible compatible image
      docker_image:
        path: "{{ molecule_ephemeral_directory }}"
        name: "molecule_pdns/{{ item.item.image }}"
        dockerfile: "{{ item.item.dockerfile | default(item.invocation.module_args.dest) }}"
        force: "{{ item.item.force | default(True) }}"
      with_items: "{{ platforms.results }}"
      when: platforms.changed or docker_images.results | map(attribute='images') | select('equalto', []) | list | count >= 0

    - name: Create molecule instance(s)
      docker_container:
        name: "{{ item.name }}"
        hostname: "{{ item.name }}"
        image: "{{ item.image }}"
        state: started
        recreate: False
        env: "{{ item.env | default(omit) }}"
        privileged: "no"
        volumes: "{{ item.volumes | default(omit) }}"
      with_items: "{{ molecule_service_instances }}"

    - name: Create the required Services instance(s)
      docker_container:
        name: "{{ item.name }}"
        hostname: "{{ item.name }}"
        image: "molecule_pdns/{{ item.image }}"
        links: "{{ molecule_service_instances | map(attribute='name') | list }}"
        command: "{{ item.command | default(omit) }}"
        state: started
        recreate: False
        privileged: "yes"
        volumes:
          # Mount the cgroups fs to allow SystemD to run into the containers
          - "/sys/fs/cgroup:/sys/fs/cgroup:ro"
      with_items: "{{ molecule_platform_instances }}"