image-prs.yaml

name: Image PRs Build

on:
  pull_request_target:
    types:
      - opened
      - synchronize
      - reopened
  push:
    branches:
      - master

jobs:
  build-and-push-prs:
    if: ${{ github.repository == 'cilium/alpine-curl' }}
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        include:
          - name: alpine-curl
            dockerfile: ./Dockerfile

    steps:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb

      - name: Login to quay.io for CI
        uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20
        with:
          registry: quay.io
          username: ${{ secrets.QUAY_CI_ALPINE_CURL_USERNAME }}
          password: ${{ secrets.QUAY_CI_ALPINE_CURL_PASSWORD }}

      - name: Getting image tag
        id: tag
        run: |
          if [ ${{ github.event.pull_request.head.sha }} != "" ]; then
            echo tag=${{ github.event.pull_request.head.sha }} >> $GITHUB_OUTPUT
          else
            echo tag=${{ github.sha }} >> $GITHUB_OUTPUT
          fi

      - name: Checkout Source Code
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
        with:
          ref: ${{ steps.tag.outputs.tag }}

      # master branch pushes
      - name: CI Build ${{ matrix.name }}
        if: ${{ github.event_name != 'pull_request_target' }}
        uses: docker/build-push-action@94f8f8c2eec4bc3f1d78c1755580779804cb87b2
        id: docker_build_ci_master
        with:
          context: .
          file: ${{ matrix.dockerfile }}
          push: true
          platforms: linux/amd64,linux/arm64
          tags: |
            quay.io/${{ github.repository_owner }}/${{ matrix.name }}-ci:latest
            quay.io/${{ github.repository_owner }}/${{ matrix.name }}-ci:${{ steps.tag.outputs.tag }}

      - name: CI Image Releases digests
        if: ${{ github.event_name != 'pull_request_target' }}
        shell: bash
        run: |
          mkdir -p image-digest/
          echo "quay.io/${{ github.repository_owner }}/${{ matrix.name }}-ci:latest@${{ steps.docker_build_ci_master.outputs.digest }}" > image-digest/${{ matrix.name }}.txt
          echo "quay.io/${{ github.repository_owner }}/${{ matrix.name }}-ci:${{ steps.tag.outputs.tag }}@${{ steps.docker_build_ci_master.outputs.digest }}" >> image-digest/${{ matrix.name }}.txt

      # PR updates
      - name: CI Build ${{ matrix.name }}
        if: ${{ github.event_name == 'pull_request_target' }}
        uses: docker/build-push-action@94f8f8c2eec4bc3f1d78c1755580779804cb87b2
        id: docker_build_ci_pr
        with:
          context: .
          file: ${{ matrix.dockerfile }}
          push: true
          platforms: linux/amd64,linux/arm64
          tags: |
            quay.io/${{ github.repository_owner }}/${{ matrix.name }}-ci:${{ steps.tag.outputs.tag }}

      - name: CI Image Releases digests
        if: ${{ github.event_name == 'pull_request_target' }}
        shell: bash
        run: |
          mkdir -p image-digest/
          echo "quay.io/${{ github.repository_owner }}/${{ matrix.name }}-ci:${{ steps.tag.outputs.tag }}@${{ steps.docker_build_ci_pr.outputs.digest }}" >> image-digest/${{ matrix.name }}.txt

      # Upload artifact digests
      - name: Upload artifact digests
        uses: actions/upload-artifact@65462800fd760344b1a7b4382951275a0abb4808
        with:
          name: image-digest ${{ matrix.name }}
          path: image-digest
          retention-days: 1

  image-digests:
    if: ${{ github.repository == 'cilium/alpine-curl' }}
    name: Display Digests
    runs-on: ubuntu-20.04
    needs: build-and-push-prs
    steps:
      - name: Downloading Image Digests
        shell: bash
        run: |
          mkdir -p image-digest/

      - name: Download digests of all images built
        uses: actions/download-artifact@65a9edc5881444af0b9093a5e628f2fe47ea3b2e
        with:
          path: image-digest/
          pattern: "*image-digest *"

      - name: Image Digests Output
        shell: bash
        run: |
          cd image-digest/
          find -type f | sort | xargs -d '\n' cat