Build arm64 Docker image (#115)

* Run build action on push

Hard-code tag for testing

Fix Docker image name

Attempt to build multi-arch image

Free up runner disk space and disable Docker parallelism

Attempt to build arm64 image only

Test build on BuildJet arm64 runner

Attempt to build images on native runners

Remove duplicate 'runs-on' key

Fix YAML syntax error

Check ghcr.io login first

Fix another YAML syntax issue

This better work...

Run build only on tags

* Test Docker image after building

* Store test diagram as an artifact

* Don't push digest with tags

* Test Docker image in interactive mode

.github/workflows/build-image.yml

@@ -1,44 +1,101 @@
-name: Create and publish a Docker image
+name: Create and publish a multi-architecture Docker image
 
 on:
   push:
     tags: ['v[0-9]+.[0-9]+.[0-9]+']
 
 env:
   REGISTRY: ghcr.io
-  IMAGE_NAME: ${{ github.repository }}
+  IMAGE_NAME: ghcr.io/${{ github.repository }}
 
 jobs:
-  build-and-push-image:
-    runs-on: ubuntu-latest
+  build-image:
+    strategy:
+      fail-fast: false
+      matrix:
+        runner: [ubuntu-latest, buildjet-4vcpu-ubuntu-2204-arm]
+    runs-on: ${{ matrix.runner }}
     permissions:
       contents: read
       packages: write
-
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
-
-      - name: Log in to the Container registry
-        uses: docker/[email protected]
+        uses: actions/checkout@v4
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_NAME }}
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login 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/[email protected]
+      - name: Build and export the image to Docker
+        uses: docker/build-push-action@v5
         with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-          tags: |
-            type=semver,pattern=v{{version}}
-
-      - name: Build and push Docker image
-        uses: docker/[email protected]
+          context: .
+          load: true
+          tags: ${{ env.IMAGE_NAME }}:test
+      - name: Test the image
+        run: |
+          docker run --rm -i ${{ env.IMAGE_NAME }}:test < examples/nfldb.er >| nfldb.pdf
+      - name: Push the image by digest
+        id: build
+        uses: docker/build-push-action@v5
         with:
           context: .
-          push: true
-          tags: |
-            ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          outputs: type=image,name=${{ env.IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true
+      - name: Export the digest
+        run: |
+          mkdir -p /tmp/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "/tmp/digests/${digest#sha256:}"
+      - name: Upload the digest
+        uses: actions/upload-artifact@v3
+        with:
+          name: digests
+          path: /tmp/digests/*
+          if-no-files-found: error
+          retention-days: 1
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: example-diagram-nfldb
+          path: nfldb.pdf
+
+  merge-image:
+    runs-on: ubuntu-latest
+    needs:
+      - build-image
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v3
+        with:
+          name: digests
+          path: /tmp/digests
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_NAME }}
+      - name: Login to the Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Create manifest list and push
+        working-directory: /tmp/digests
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf '${{ env.IMAGE_NAME }}@sha256:%s ' *)
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}

Dockerfile

@@ -14,7 +14,7 @@
 #  - Go to Preferences > Resources > Memory
 #  - and give docker more memory (eg: 4gb)
 
-FROM haskell:8
+FROM haskell:8-slim
 
 WORKDIR /opt/erd