Add GitHub actions workflow for building container images

.github/workflows/container-images.yml

@@ -0,0 +1,74 @@
+name: container-images
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - '**'
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build-and-push-images:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    strategy:
+      matrix:
+        image:
+          - ingest
+
+    env:
+      IMAGE_PLATFORMS: linux/amd64,linux/arm,linux/arm64,linux/ppc64le,linux/s390x
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: set up Docker
+        uses: crazy-max/ghaction-setup-docker@v3
+        with:
+          # containerd image store allows to load multi-platform images
+          daemon-config: |
+            {
+              "features": {
+                "containerd-snapshotter": true
+              }
+            }
+
+      - uses: docker/login-action@v3
+        if: ${{ github.event_name == 'push' }}
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: set up Docker buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          platforms: ${{ env.IMAGE_PLATFORMS }}
+
+      - name: info
+        id: info
+        run: |
+          VERSION=dev
+          if [ "${{ github.ref_type }}" = 'tag' ]; then
+            VERSION="${{ github.ref_name }}"
+          fi
+          echo "VERSION=${VERSION}" | tee -a "$GITHUB_OUTPUT"
+
+      - name: build and push container images
+        run: |
+          case "${{ github.event_name }}" in
+            push)  BUILDX_OUTPUT='--push' ;;
+               *)  BUILDX_OUTPUT='--load' ;;
+          esac
+
+          make image-${{ matrix.image }} \
+            VERSION=${{ steps.info.outputs.VERSION }} \
+            IMAGE_PLATFORMS=${{ env.IMAGE_PLATFORMS }} \
+            BUILDX_OUTPUT="${BUILDX_OUTPUT}"