feat: add ARM build (#38)

Fixes #37

ARM images cannot be statically linked, as there's no GraalVM for arm/v7, so the image is slightly bigger than the amd64 one.

Note: This only adds ARM docker containers, if you need a binary, use the `tgtg.jar` from the release

.github/workflows/release.yml

@@ -10,6 +10,10 @@ permissions:
   pull-requests: write
   packages: write
 
+env:
+  REGISTRY: ghcr.io
+  REGISTRY_IMAGE: ghcr.io/${{ github.repository }}
+
 jobs:
   release-please:
     runs-on: ubuntu-latest
@@ -27,72 +31,113 @@ jobs:
     needs: [release-please]
     if: ${{ needs.release-please.outputs.release_created }}
     runs-on: ${{ matrix.OS }}
-    env:
-      REGISTRY: ghcr.io
-      IMAGE_NAME: ${{ github.repository }}
     strategy:
       matrix:
-        OS: ["ubuntu-latest", "windows-latest", "macos-latest"]
+        OS: ["windows-latest", "macos-latest"]
         include:
           - os: macOS-latest
-            uploaded_filename: tgtg-x86_64-apple-darwin
-            local_path: artifacts/tgtg-x86_64-apple-darwin
-          - os: ubuntu-latest
-            uploaded_filename: tgtg-x86_64-pc-linux
-            local_path: artifacts/tgtg-x86_64-pc-linux
+            uploaded_filename: tgtg-macos-amd64
+            local_path: artifacts/tgtg-macos-amd64
           - os: windows-latest
-            uploaded_filename: tgtg-x86_64-pc-win32.exe
-            local_path: artifacts/tgtg-x86_64-pc-win32.exe
+            uploaded_filename: tgtg-win-amd64.exe
+            local_path: artifacts/tgtg-win-amd64.exe
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - uses: coursier/cache-action@v6
+      - uses: VirtusLab/scala-cli-setup@v1
+        with:
+          power: true
+          jvm: "temurin:17"
+      - name: Package app
+        run: scala-cli package . -o "${{ matrix.local_path }}" --native-image --graalvm-args -H:IncludeResources=version.txt
+      - uses: actions/upload-artifact@v3
+        with:
+          name: ${{ matrix.uploaded_filename }}
+          path: ${{ matrix.local_path }}
+          if-no-files-found: error
+          retention-days: 2
+      - name: Upload release artifacts
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: gh release upload ${{ needs.release-please.outputs.tag_name }} ${{ matrix.local_path }}
+  package-linux:
+    needs: [release-please]
+    if: ${{ needs.release-please.outputs.release_created }}
+    runs-on: ${{ matrix.OS }}
+    strategy:
+      matrix:
+        OS: ["ubuntu-latest"]
+        platforms:
+          - linux/amd64
+          - linux/arm/v7,linux/arm64/v8
+        include:
+          - platforms: linux/amd64
+            uploaded_filename: tgtg-linux-amd64
+            local_path: artifacts/tgtg-linux-amd64
+          - platforms: linux/arm/v7,linux/arm64/v8
+            uploaded_filename: tgtg.jar
+            local_path: artifacts/tgtg.jar
     steps:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Log in to the Container registry
-        if: matrix.OS == 'ubuntu-latest'
         uses: docker/login-action@v2
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
       - name: Extract metadata (tags, labels) for Docker
-        if: matrix.OS == 'ubuntu-latest'
         id: meta
         uses: docker/metadata-action@v4
         with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-          tags: |
-            type=schedule
-            type=ref,event=branch
-            type=ref,event=tag
-            type=ref,event=pr
-            type=raw,value=${{ needs.release-please.outputs.tag_name }}
-            type=raw,value=latest
+          images: ${{ env.REGISTRY_IMAGE }}
       - uses: coursier/cache-action@v6
       - uses: VirtusLab/scala-cli-setup@v1
         with:
           power: true
           jvm: "temurin:17"
       - name: Package app
-        if: matrix.OS != 'ubuntu-latest'
-        run: scala-cli package . -o "${{ matrix.local_path }}" --native-image --graalvm-args -H:IncludeResources=version.txt
-      - name: Package app
-        if: matrix.OS == 'ubuntu-latest'
+        if: matrix.platforms == 'linux/amd64'
         run: scala-cli package . -o "${{ matrix.local_path }}" --native-image -- -H:IncludeResources=version.txt --static
       - name: Compress artifact
-        if: ${{ matrix.OS == 'ubuntu-latest' }}
+        if: matrix.platforms == 'linux/amd64'
         uses: crazy-max/ghaction-upx@v2
         with:
           args: --best
           files: ${{ matrix.local_path }}
+      - name: Package app
+        if: matrix.platforms != 'linux/amd64'
+        run: |
+          mkdir -p $(dirname "${{ matrix.local_path }}")
+          scala-cli package . -o "${{ matrix.local_path }}" --assembly
       - name: Build and push Docker image
-        if: matrix.OS == 'ubuntu-latest'
         uses: docker/build-push-action@v4
+        id: build
         with:
+          file: ${{ matrix.platforms == 'linux/amd64' && './Dockerfile' || './arm.Dockerfile' }}
           build-args: "LOCAL_PATH=${{ matrix.local_path }}"
           context: .
           push: true
-          tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          platforms: ${{ matrix.platforms }}
+          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true
+      - name: Export digest
+        run: |
+          mkdir -p /tmp/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "/tmp/digests/${digest#sha256:}"
+      - name: Upload digest
+        uses: actions/upload-artifact@v3
+        with:
+          name: digests
+          path: /tmp/digests/*
+          if-no-files-found: error
+          retention-days: 1
       - uses: actions/upload-artifact@v3
         with:
           name: ${{ matrix.uploaded_filename }}
@@ -103,3 +148,44 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: gh release upload ${{ needs.release-please.outputs.tag_name }} ${{ matrix.local_path }}
+  # https://docs.docker.com/build/ci/github-actions/multi-platform/
+  merge:
+    runs-on: ubuntu-latest
+    if: ${{ needs.release-please.outputs.release_created }}
+    needs:
+      - release-please
+      - package-linux
+    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@v2
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY_IMAGE }}
+          tags: |
+            type=schedule
+            type=ref,event=branch
+            type=ref,event=tag
+            type=ref,event=pr
+            type=raw,value=${{ needs.release-please.outputs.tag_name }}
+            type=raw,value=latest
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        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.REGISTRY_IMAGE }}@sha256:%s ' *)
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}

Dockerfile

@@ -1,10 +1,12 @@
 FROM busybox
 
-ARG LOCAL_PATH
+WORKDIR /opt/app
 
 ENV TINI_VERSION v0.19.0
 ADD https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini /tini
 RUN chmod +x /tini
 
-COPY ${LOCAL_PATH} tgtg 
-ENTRYPOINT ["/tini", "--", "/tgtg"]
+ARG LOCAL_PATH
+COPY ${LOCAL_PATH} tgtg
+
+ENTRYPOINT ["/tini", "--", "/opt/app/tgtg"]

arm.Dockerfile

@@ -0,0 +1,9 @@
+ARG ARCH=
+FROM ${ARCH}eclipse-temurin:17
+
+WORKDIR /opt/app
+
+ARG LOCAL_PATH
+COPY ${LOCAL_PATH} tgtg.jar
+
+ENTRYPOINT ["java", "-jar", "/opt/app/tgtg.jar"]