gitlab-ci-runners.yml

    - name: scripts to create docker images
      copy: src={{ item.script }} dest=./{{ item.script }} mode=0775
      register: scripts
      with_items:
        - { image: foo-test-image, script: build-docker-image.sh }
        - { image: foo-debian-image, script: build-debian-image.sh }
        - { image: foo-packaging-image, script: build-packaging-image.sh }
      tags: docker

    - name: list docker images
      command: docker images --format "{{"{{"}} .Repository {{"}}"}}"
      register: docker_images
      changed_when: false
      always_run: true
      tags: docker

    - name: build docker images
      command: ./{{ item.item.script }}
      when: item.changed or item.item.image not in docker_images.stdout_lines
      with_items: "{{ scripts.results }}"
      tags: docker