docker.yml

name: Dockerize

on:
  push:
  pull_request:

env:
  REGISTRY_IMAGE: specifyconsortium/specify7-service

jobs:
  prep:
    name: prepare tag names
    runs-on: ubuntu-latest
    # "push" event is not triggered for forks, so need to listen for
    # pull_requests, but only for external ones, so as not to run the action
    # twice
    if: github.event_name != 'pull_request' ||
      github.event.pull_request.head.repo.fork == true
    outputs:
      tags: ${{ steps.prep.outputs.tags }}
      version: ${{ steps.prep.outputs.version }}
    steps:
      - name: Prepare tags and version for manifest
        id: prep
        run: |
          DOCKER_IMAGE=${{ env.REGISTRY_IMAGE }}
          VERSION=noop
          if [ "${{ github.event_name }}" = "schedule" ]; then
            VERSION=nightly
          elif [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/}
          elif [[ $GITHUB_REF == refs/heads/* ]]; then
            # Docker does not like / in tag names, so replace them with -
            # See https://github.com/specify/specify7-test-panel/issues/110#issuecomment-1943045253
            VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
            if [ "${{ github.event.repository.default_branch }}" = "$VERSION" ]; then
              VERSION=main
            fi
          elif [[ $GITHUB_REF == refs/pull/* ]]; then
            VERSION=pr-${{ github.event.number }}
          fi
          TAGS="${DOCKER_IMAGE}:${VERSION}"
          if [[ $VERSION =~ ^v[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
            HOTFIX=${VERSION%.*}
            MINOR=${HOTFIX%.*}
            MAJOR=${MINOR%.*}
            TAGS="$TAGS,${DOCKER_IMAGE}:${HOTFIX},${DOCKER_IMAGE}:${MINOR},${DOCKER_IMAGE}:${MAJOR},${DOCKER_IMAGE}:latest"
          elif [[ $VERSION =~ ^v[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
            MINOR=${VERSION%.*}
            MAJOR=${MINOR%.*}
            TAGS="$TAGS,${DOCKER_IMAGE}:${MINOR},${DOCKER_IMAGE}:${MAJOR},${DOCKER_IMAGE}:latest"
          elif [ "${{ github.event_name }}" = "push" ]; then
            TAGS="$TAGS"
          fi
          echo "Tags: ${TAGS}"
          echo "Version: ${VERSION}"
          echo "tags=${TAGS}" >> $GITHUB_OUTPUT
          echo "version=${VERSION}" >> $GITHUB_OUTPUT

  build:
    name: build & push
    needs: prep
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: amd64
            platform: linux/amd64
            runner: ubuntu-latest
          - name: arm64
            platform: linux/arm64
            runner: ubuntu-24.04-arm
    runs-on: ${{ matrix.runner }}
    steps:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push by digest
        id: build
        uses: docker/build-push-action@v6
        with:
          platforms: ${{ matrix.platform }}
          build-args: |
            BUILD_VERSION=${{ needs.prep.outputs.version }}
            GIT_SHA=${{ github.sha }}
          tags: ${{ needs.prep.outputs.tags }}
          push: true

      - name: Export digest
        run: |
          mkdir -p /tmp/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "/tmp/digests/${digest#sha256:}"

      - name: Upload digest
        uses: actions/upload-artifact@v4
        with:
          name: digests-${{ matrix.name }}
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  merge:
    name: create & push manifest
    needs:
      - prep
      - build
    runs-on: ubuntu-latest
    steps:
      - name: Download all digests
        uses: actions/download-artifact@v4
        with:
          path: /tmp/digests
          pattern: digests-*
          merge-multiple: true

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

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Create manifest list and push
        working-directory: /tmp/digests
        env:
          TAGS: ${{ needs.prep.outputs.tags }}
        run: |
          echo "Pushing manifests on tags: ${TAGS}"
          TAG_ARGS=$(echo "$TAGS" | tr ',' '\n' | sed 's/^/-t /' | xargs)
          docker buildx imagetools create $TAG_ARGS \
            $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)

      - name: Inspect image
        run: |
          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ needs.prep.outputs.version }}