ceph-ansible/roles/ceph-docker-common/tasks/fetch_image.yml

---
# NOTE(leseb): using failed_when to handle the case when the image is not present yet
- name: "inspecting {{ ceph_docker_registry}}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }} image before pulling"
  command: "docker inspect {{ ceph_docker_registry}}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }}"
  changed_when: false
  failed_when: false
  register: container_inspect_before_pull

- name: set_fact repodigest_before_pulling
  set_fact:
    repodigest_before_pulling: "{{ (container_inspect_before_pull.stdout | from_json)[0].RepoDigests[0] }}"
  when:
    - container_inspect_before_pull.rc == 0

- name: "pulling {{ ceph_docker_registry}}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }} image"
  command: "timeout {{ docker_pull_timeout }} docker pull {{ ceph_docker_registry}}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }}"
  changed_when: false
  register: docker_image
  until: docker_image.rc == 0
  retries: "{{ docker_pull_retry }}"
  delay: 10
  when:
    - (ceph_docker_dev_image is undefined or not ceph_docker_dev_image)

- name: "inspecting {{ ceph_docker_registry}}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }} image after pulling"
  command: "docker inspect {{ ceph_docker_registry}}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }}"
  failed_when: false
  register: container_inspect_after_pull

- name: set_fact repodigest_after_pulling
  set_fact:
    repodigest_after_pulling: "{{ (container_inspect_after_pull.stdout | from_json)[0].RepoDigests[0] }}"
  when:
    - container_inspect_after_pull.rc == 0

- name: set_fact is_image_updated
  set_fact:
    is_image_updated: "{{ repodigest_before_pulling == repodigest_after_pulling }}"
  changed_when: true
  notify:
    - restart ceph mons
    - restart ceph osds
    - restart ceph mdss
    - restart ceph rgws
    - restart ceph mgrs
    - restart ceph rbdmirrors
  when:
    - container_inspect_before_pull.rc == 0
    - repodigest_before_pulling == repodigest_after_pulling

- name: export local ceph dev image
  local_action:
    module: command
      docker save -o "/tmp/{{ ceph_docker_username }}-{{ ceph_docker_imagename }}-{{ ceph_docker_image_tag }}.tar" "{{ ceph_docker_username }}/{{ ceph_docker_imagename }}:{{ ceph_docker_image_tag }}"
  when:
    - (ceph_docker_dev_image is defined and ceph_docker_dev_image)
  run_once: true

- name: copy ceph dev image file
  copy:
    src: "/tmp/{{ ceph_docker_username }}-{{ ceph_docker_imagename }}-{{ ceph_docker_image_tag }}.tar"
    dest: "/tmp/{{ ceph_docker_username }}-{{ ceph_docker_imagename }}-{{ ceph_docker_image_tag }}.tar"
  when:
    - (ceph_docker_dev_image is defined and ceph_docker_dev_image)

- name: load ceph dev image
  command: "docker load -i /tmp/{{ ceph_docker_username }}-{{ ceph_docker_imagename }}-{{ ceph_docker_image_tag }}.tar"
  when:
    - (ceph_docker_dev_image is defined and ceph_docker_dev_image)

- name: remove tmp ceph dev image file
  command: "rm /tmp/{{ ceph_docker_username }}-{{ ceph_docker_imagename }}-{{ ceph_docker_image_tag }}.tar"
  when:
    - (ceph_docker_dev_image is defined and ceph_docker_dev_image)