roles/depot-bake/tasks/main.yaml

- name: Build images
  block:
    - name: Create metadata file
      ansible.builtin.tempfile:
        state: file
        prefix: metadata
        suffix: .json
      register: depot_bake_metadata_file

    - name: Run "depot bake"
      ansible.builtin.command: >-
        {{ ensure_depot_path | default('/usr/local/bin') }}/depot bake --push --metadata-file={{ depot_bake_metadata_file.path }}
      args:
        chdir: "{{ zuul.project.src_dir }}"
      environment: "{{ _depot_bake_environment | combine(depot_bake_environment) }}"

    - name: Slurp the metadata file
      ansible.builtin.slurp:
        src: "{{ depot_bake_metadata_file.path }}"
      register: depot_bake_metadata

    - name: Unmarshal the metadata file
      ansible.builtin.set_fact:
        depot_bake_metadata: "{{ depot_bake_metadata.content | b64decode | from_json }}"

    - name: Build empty list of artifacts
      ansible.builtin.set_fact:
        depot_bake_artifacts: []

    - name: Append each artifact to the list
      ansible.builtin.set_fact:
        depot_bake_artifacts: "{{ depot_bake_artifacts + [depot_bake_artifact] }}"
      loop: "{{ depot_bake_metadata | dict2items }}"
      loop_control:
        label: "{{ item.key }}"
      when:
        - item.key != "depot.build"
        - item.value != {}
        - item.value["image.name"] is defined
      vars:
        depot_bake_artifact:
          name: "{{ item.value['image.name'] }}"
          url: "docker://{{ item.value['image.name'] }}"
          metadata:
            type: container_image
            repository: "{{ item.value['image.name'] | split(':') | first }}"
            tag: "{{ item.value['image.name'] | split(':') | last }}"

    - name: Return artifacts for each image
      zuul_return:
        data:
          zuul:
            artifacts: "{{ depot_bake_artifacts }}"

  always:
    - name: Cleanup metadata file
      ansible.builtin.file:
        path: "{{ depot_bake_metadata_file.path }}"
        state: absent