image.yaml

name: Create and publish a Docker image
on:
  push:
    branches: ['main']
    paths:
      - 'ci/dockerfiles/**'
      - '.github/workflows/image.yml'
      - '.tool-versions'
  pull_request:
    paths:
      - 'ci/dockerfiles/**'
      - '.github/workflows/image.yml'
      - '.tool-versions'
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      # This is used to complete the identity challenge
      # with sigstore/fulcio when running outside of PRs.
      id-token: write
    strategy:
      matrix:
        image_suffix: ["tools"]
    name: Build and Push app-autoscaler-release-${{ matrix.image_suffix }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-${{ matrix.image_suffix }}

      - name: Get ginkgo version from autoscaler-release
        id: ginkgo
        run: |
          version=$(grep "ginkgo " .tool-versions|  cut -f 2 -d " ")
          echo "GINKGO version from .tool-versions: \'${version}\'"
          echo "version=${version}" >> "$GITHUB_OUTPUT"

      - id: get-golang-version
        shell: bash
        run: |
          version=$(grep "golang " .tool-versions|  cut -f 2 -d " ")
          echo "Go version from .tool-versions: \'${version}\'"
          echo "version=${version}" >> "$GITHUB_OUTPUT"

      - name: Build and push
        id: build-and-push
        uses: docker/build-push-action@v5
        with:
          context: ci/dockerfiles/autoscaler-${{ matrix.image_suffix }}
          push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-${{ matrix.image_suffix }}:main
          build-args: |
            GINKGO_VERSION=v${{ steps.ginkgo.outputs.version }}
            GO_VERSION=${{ steps.get-golang-version.outputs.version }}