images.yaml

name: Image CI Build

# Any change in triggers needs to be reflected in the concurrency group.
on:
  pull_request_target:
    types:
      - opened
      - synchronize
      - reopened
  push:
    branches:
      - main

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.event.after }}
  cancel-in-progress: true

jobs:
  build-and-push-prs:
    if: ${{ github.repository == 'cilium/cilium-cli' }}
    environment: ci
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        include:
          - name: cilium-cli
            dockerfile: ./Dockerfile
    steps:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@4c0219f9ac95b02789c1075625400b2acbff50b1 # v2.9.1

      - name: Login to quay.io for CI
        uses: docker/login-action@465a07811f14bebb1938fbed4728c6a1ff8901fc # v2.2.0
        with:
          registry: quay.io
          username: ${{ secrets.QUAY_CI_USERNAME }}
          password: ${{ secrets.QUAY_CI_TOKEN }}

      - 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@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
        with:
          ref: ${{ steps.tag.outputs.tag }}

      # main branch pushes
      - name: CI Build ${{ matrix.name }}
        if: ${{ github.event_name != 'pull_request_target' }}
        uses: docker/build-push-action@2eb1c1961a95fc15694676618e422e8ba1d63825 # v4.1.1
        id: docker_build_ci_main
        with:
          context: .
          file: ${{ matrix.dockerfile }}
          push: true
          platforms: linux/amd64
          tags: |
            quay.io/${{ 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_main.outputs.digest }}" > image-digest/${{ matrix.name }}.txt
          echo "quay.io/${{ github.repository_owner }}/${{ matrix.name }}-ci:${{ steps.tag.outputs.tag }}@${{ steps.docker_build_ci_main.outputs.digest }}" >> image-digest/${{ matrix.name }}.txt

      # PR updates
      - name: CI Build ${{ matrix.name }}
        if: ${{ github.event_name == 'pull_request_target' }}
        uses: docker/build-push-action@2eb1c1961a95fc15694676618e422e8ba1d63825 # v4.1.1
        id: docker_build_ci_pr
        with:
          context: .
          file: ${{ matrix.dockerfile }}
          push: true
          platforms: linux/amd64
          tags: |
            quay.io/${{ 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@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
        with:
          name: image-digest ${{ matrix.name }}
          path: image-digest
          retention-days: 1

  image-digests:
    if: ${{ github.repository == 'cilium/cilium-cli' }}
    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@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
        with:
          path: image-digest/

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