- import_tasks: precheck.yml
  tags:
    - always

- name: Set default modified_append_tag
  set_fact:
    modified_append_tag: "{{ lookup('pipe','date +-modified-%Y%m%d%H%M%S') }}"
  when: modified_append_tag is undefined

- name: Copy Dockerfile to Dockerfile.modified
  copy:
    src: "{{ modify_dir_path }}/Dockerfile"
    dest: "{{ modify_dir_path }}/Dockerfile.modified"

- name: Replace FROM directive
  lineinfile:
    path: "{{ modify_dir_path }}/Dockerfile.modified"
    regexp: "^FROM "
    line: "FROM {{ source_image }}"

- name: Add LABEL modified_append_tag={{ modified_append_tag }}
  lineinfile:
    path: "{{ modify_dir_path }}/Dockerfile.modified"
    insertafter: "^FROM "
    line: "LABEL modified_append_tag={{ modified_append_tag }}"

- name: Modify image
  docker_image:
    name: "{{ target_image | default(source_image) }}{{ modified_append_tag }}"
    path: "{{ modify_dir_path }}"
    dockerfile: Dockerfile.modified