concourse-oci-resource/ci/pipeline.yml

---
resource_types:
- name: oci-image
  type: registry-image
  source:
    repository: redxef/concourse-oci-resource
    tag: latest
resources:
- name: source
  type: git
  source:
    uri: https://gitea.redxef.at/redxef/concourse-oci-resource
    branch: master
    fetch_tags: true
- name: upstream-image
  type: registry-image
  source:
    repository: alpine
- name: concourse-oci-resource
  type: oci-image
  source:
    repository: redxef/concourse-oci-resource
    tag: edge
    username: ((docker.username))
    password: ((docker.password))

jobs:
- name: build-push-edge
  plan:
  - get: source
    trigger: true
  - get: upstream-image
    trigger: true
  - task: compute-docker-tags
    config:
      platform: linux
      image_resource:
        type: registry-image
        source:
          repository: alpine/git
      inputs:
      - name: source
        path: .
      outputs:
      - name: docker-tags
      run:
        path: sh
        args:
        - -c
        - |
          #!/usr/bin/env sh
          git rev-parse --short HEAD > docker-tags/tags.txt
          git show-ref --tags | \
              sed -n "/$(git rev-parse HEAD)/ s|$(git rev-parse HEAD).refs/tags/||gp" \
              >> docker-tags/tags.txt
  - task: build
    privileged: true
    config:
      platform: linux
      image_resource:
        type: registry-image
        source:
          repository: redxef/concourse-buildkit
      inputs:
      - name: source
        path: .
      outputs:
      - name: build-output
      params:
        dest: build-output/image.tar
        platform: aarch64,arm,ppc64le,s390x,x86_64
        context: .
      run:
        path: build
  - put: concourse-oci-resource
    inputs:
    - build-output
    - docker-tags
    params:
      image: build-output/image.tar
      additional_tags: docker-tags/tags.txt