name: Build, test and push to the Client Library

on:
  workflow_dispatch:
      inputs:
        production:
          description: |
            'Push to production registries'
            'not checked - to testing'
          required: true
          type: boolean
          default: false

        version_major:
          description: 'AlmaLinux major version'
          required: true
          default: '9'
          type: choice
          options:
            - 9
            - 8

        type_default:
          description: 'default'
          required: true
          type: boolean
          default: true

        type_minimal:
          description: 'minimal'
          required: true
          type: boolean
          default: true

        type_micro:
          description: 'micro'
          required: true
          type: boolean
          default: true

        type_base:
          description: 'base'
          required: true
          type: boolean
          default: true

        type_init:
          description: 'init'
          required: true
          type: boolean
          default: true

env:
  # Latest version
  version_latest: 9

  # Platforms list: linux/amd64, linux/ppc64le, linux/s390x, linux/arm64
  platforms: 'linux/amd64, linux/ppc64le, linux/s390x, linux/arm64'

  # Registries list
  # production: docker.io/almalinux, quay.io/almalinuxorg, ghcr.io/almalinux
  # testing: quay.io/almalinuxautobot
  registries: ${{ inputs.production && 'docker.io/almalinux, quay.io/almalinuxorg, ghcr.io/almalinux' || 'quay.io/almalinuxautobot' }}

jobs:
  build:
    name: Deploy ${{ inputs.version_major }} ${{ matrix.image_types }} images
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        # Set image types matrix based on boolean inputs.type_* with true value
        image_types: ${{ fromJSON(format('["{0}", "{1}", "{2}", "{3}", "{4}"]', ( inputs.type_default && 'default' ), ( inputs.type_minimal && 'minimal' ), ( inputs.type_micro && 'micro' ), ( inputs.type_base && 'base' ), ( inputs.type_init && 'init' ) )) }}
        exclude:
          - image_types: 'false'

    steps:

      -
        name: Prepare AlmaLinux Minor version number
        run: |
          case ${{ inputs.version_major }} in
            8)
              version_minor="9" ;;
            9)
              version_minor="3"  ;;
            10)
              version_minor="0" ;;
            *)
              echo "Almalinux ${{ inputs.version_major }} is not supported!" && false
          esac
          echo "version_minor=${version_minor}" >> $GITHUB_ENV

          # [Debug]
          echo "version_minor=${version_minor}"

      -
        name: Prepare date stamp
        id: date_stamp
        run: |
          # date stamp
          date_stamp=$(date -u '+%Y%m%d')
          echo "date_stamp=${date_stamp}" >> $GITHUB_ENV
          echo "date_stamp=${date_stamp}" >> "$GITHUB_OUTPUT"
          [ -z "$date_stamp-x" ] && false

          # [Debug]
          echo "date_stamp=${date_stamp}"

      -
        name: Generate list of images to use as base name for tags
        run: |
          # list of registries to push to
          REGISTRIES="${{ env.registries }}"

          IMAGE_NAMES=
          # generate image names in format $REGISTRY/almalinux or $REGISTRY/${{ inputs.version_major }}-${{ matrix.image_types }}
          # image names are used by docker/metadata-action to set 'images'
          for REGISTRY in ${REGISTRIES//,/ }; do
            # 'default' images should not go to docker.io
            [ "${{ matrix.image_types }}" = "default" ] && [[ $REGISTRY = *'docker.io'* ]] && continue

            # 'default' images goes to $REGISTRY/almalinux
            [ "${{ matrix.image_types }}" = "default" ] \
              && IMAGE_NAME="$REGISTRY/almalinux" \
              || IMAGE_NAME="$REGISTRY/${{ inputs.version_major }}-${{ matrix.image_types }}"
            IMAGE_NAMES="${IMAGE_NAMES} ${IMAGE_NAME}"
            unset IMAGE_NAME
          done

          # remove space at the beginning of string
          IMAGE_NAMES=${IMAGE_NAMES# }
          # separate with comma instead of space and export to the action
          echo "IMAGE_NAMES=${IMAGE_NAMES// /,}" >> $GITHUB_ENV

          # [Debug]
          echo $IMAGE_NAMES

      -
        name: Enable containerd image store on Docker Engine
        run: |
          # Use containerd image store
          sudo jq '.features |= . + { "containerd-snapshotter": true }' /etc/docker/daemon.json > ./daemon.json.${{ env.date_stamp }} && \
          sudo mv -f ./daemon.json.${{ env.date_stamp }} /etc/docker/daemon.json
          sudo systemctl restart docker
          docker info -f '{{ .DriverStatus }}'

      -
        name: Checkout ${{ github.repository }}, branch 'main'
        uses: actions/checkout@v4

      -
        name: Checkout ${{ github.repository }}, branch 'docker-library', path 'docker-library'
        uses: actions/checkout@v4
        with:
          ref: docker-library
          path: docker-library

      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      -
        name: Login to Docker.io
        if: contains(env.registries, 'docker.io')
        uses: docker/login-action@v3
        with:
          registry: docker.io
          username: ${{ inputs.production && secrets.DOCKERHUB_USERNAME || secrets.TEST_DOCKERHUB_USERNAME }}
          password: ${{ inputs.production && secrets.DOCKERHUB_TOKEN || secrets.TEST_DOCKERHUB_TOKEN }}

      -
        name: Login to Quay.io
        if: contains(env.registries, 'quay.io')
        uses: docker/login-action@v3
        with:
          registry: quay.io
          username: ${{ inputs.production && secrets.QUAY_IO_USERNAME || secrets.TEST_QUAY_IO_USERNAME }}
          password: ${{ inputs.production && secrets.QUAY_IO_CLI_PASSWORD || secrets.TEST_QUAY_IO_CLI_PASSWORD }}

      -
        name: Login to Ghcr.io
        if: contains(env.registries, 'ghcr.io')
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ inputs.production && secrets.GIT_HUB_USERNAME || secrets.TEST_GITHUB_USERNAME }}
          password: ${{ inputs.production && secrets.GIT_HUB_TOKEN || secrets.TEST_GITHUB_TOKEN }}

      -
        name: Generate tags and prepare metadata to build and push
        id: meta
        uses: docker/metadata-action@v5
        with:
          # list of Docker images to use as base names for tags
          images: ${{ env.IMAGE_NAMES }}

          # list of tags
          tags: |
            type=raw,value=latest,enable=${{ matrix.image_types != 'default' || ( matrix.image_types == 'default' && inputs.version_major == env.version_latest ) }}
            type=raw,value=${{ inputs.version_major }},enable=true
            type=raw,value=${{ inputs.version_major }}.${{ env.version_minor }},enable=true
            type=raw,value=${{ inputs.version_major }}.${{ env.version_minor }}-${{ env.date_stamp }},enable=true

      -
        name: Build images
        id: build-images
        uses: docker/build-push-action@v5
        with:
          provenance: false
          context: "{{defaultContext}}:Containerfiles/${{ inputs.version_major }}"
          file: ./Containerfile.${{ matrix.image_types }}
          platforms: ${{ env.platforms }}
          push: false
          load: true
          tags: ${{ steps.meta.outputs.tags }}

      -
        name: Test images
        id: test-images
        run: |
          # [Test]
          platforms="${{ env.platforms }}"
          for platform in ${platforms//,/ }; do
            echo "Testing AlmaLinux ${{ inputs.version_major }} ${{ matrix.image_types }} for ${platform} image:"

            docker run --platform=${platform} ${{ steps.build-images.outputs.digest }} /bin/bash -c " \
            uname -m \
            && cat /etc/almalinux-release \
            && ( test "${{ matrix.image_types }}" != "micro" && rpm -q gpg-pubkey) || true "
          done

      -
        name: Push images to Client Library
        id: push-images
        uses: docker/build-push-action@v5
        with:
          provenance: false
          context: "{{defaultContext}}:Containerfiles/${{ inputs.version_major }}"
          file: ./Containerfile.${{ matrix.image_types }}
          platforms: ${{ env.platforms }}
          push: true
          tags: ${{ steps.meta.outputs.tags }}

      # Change date stamp in 'docker-library/Containerfiles/*/Containerfile.*'
      -
        name: Change date stamp in Containerfile (default and minimal only)
        # 'default' or 'minimal' images only go to Docker Official Library
        if: matrix.image_types == 'default' || matrix.image_types == 'minimal'
        run: |
          containerfile=docker-library/Containerfiles/${{ inputs.version_major }}/Containerfile.${{ matrix.image_types }}

          case ${{ matrix.image_types }} in
            default)
              tags="${{ inputs.version_major }}, ${{ inputs.version_major }}.${{ env.version_minor }}, ${{ inputs.version_major }}.${{ env.version_minor }}-${{ env.date_stamp }}"
              [ "${{ inputs.version_major }}" = "9" ] && tags="latest, ${tags}" ;;
            minimal)
              tags="${{ inputs.version_major }}-${{ matrix.image_types }}, ${{ inputs.version_major }}.${{ env.version_minor }}-${{ matrix.image_types }}, ${{ inputs.version_major }}.${{ env.version_minor }}-${{ matrix.image_types }}-${{ env.date_stamp }}"
              [ "${{ inputs.version_major }}" = "9" ] && tags="minimal, ${tags}" ;;
            *)
          esac

          # Tags: 8, 8.9, 8.9-20231124
          sed -i "/^\([[:space:]]*#[[:space:]]*Tags: \).*/s//\1${tags}/" ${containerfile}

          # FROM quay.io/almalinuxorg/almalinux:8.9-20231124
          sed -i 's/^\([[:space:]]*FROM[[:space:]]\+.\+:\).\+$/\1${{ inputs.version_major }}.${{ env.version_minor }}-${{ env.date_stamp}}/' ${containerfile}

          # [Debug]
          cat ${containerfile}

      # Upload changed 'Containerfiles/*/Containerfile.*'
      -
        name: Upload changed Containerfile (default and minimal only)
        uses: actions/upload-artifact@v4
        # 'default' or 'minimal' images only go to Docker Official Library
        if: matrix.image_types == 'default' || matrix.image_types == 'minimal'
        with:
          name: containerfiles-${{ matrix.image_types }}
          path: docker-library/Containerfiles/${{ inputs.version_major }}/Containerfile.${{ matrix.image_types }}

    outputs:
      date_stamp: ${{ steps.date_stamp.outputs.date_stamp }}

  commit:
    # 'default' or 'minimal' images only go to Docker Official Library
    if: inputs.type_default || inputs.type_minimal
    name: Collect and save changed Containerfile(s) used by Docker Official Library
    runs-on: ubuntu-latest
    needs:
      - build
    steps:

      -
        name: Checkout ${{ github.repository }}, branch 'docker-library'
        uses: actions/checkout@v4
        with:
          ref: docker-library

      # Download uploaded above 'Containerfiles/*/Containerfile.*'
      -
        name: Download changed Containerfiles
        uses: actions/download-artifact@v4
        with:
          merge-multiple: true
          path: Containerfiles/${{ inputs.version_major }}

      -
        name: "[Debug] Print Containerfiles/${{ inputs.version_major }}/Containerfile.*"
        run: |
          # [Debug]
          cat Containerfiles/${{ inputs.version_major }}/Containerfile.*

      # Commit 'Containerfiles/*/Containerfile.*'
      -
        name: "Commit and push Containerfiles/${{ inputs.version_major }}/Containerfile.* changes"
        # if 'Push to production' is checked
        if: inputs.production
        uses: EndBug/add-and-commit@v9
        with:
          default_author: user_info
          new_branch: docker-library
          message: "AlmaLinux ${{ inputs.version_major }} image built as of ${{ needs.build.outputs.date_stamp }} (generated on ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})."
          push: true