Add linux arm64 images to the build process (#405)

* Add linux arm64 images to the build process

* Fix GOARCH

.github/workflows/build_and_push_image.yml

@@ -10,15 +10,31 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: agilepathway/pull-request-label-checker
+          tags: |
+            type=ref,event=branch
+            type=sha
       - name: Build and push Docker image
         # Skip running on forks or Dependabot since neither has access to secrets
         if: |
           (github.repository == 'agilepathway/label-checker') &&
           (github.actor!= 'dependabot[bot]') &&
           (contains(github.head_ref, 'dependabot/github_actions/') == false)
-        uses: docker/build-push-action@v1.1.0
+        uses: docker/build-push-action@v5
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-          repository: agilepathway/pull-request-label-checker
-          tag_with_ref: true
+          tags: ${{ steps.meta.outputs.tags }}
+          push: true
+          platforms: linux/amd64,linux/arm64

.github/workflows/github_tag_and_release.yml

@@ -53,9 +53,18 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
-      - uses: docker/[email protected]
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
-          repository: agilepathway/pull-request-label-checker
-          tags: ${{ needs.tag.outputs.tag }}
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          tags: agilepathway/pull-request-label-checker:${{ needs.tag.outputs.tag }}
+          platforms: linux/amd64,linux/arm64
+          push: true

Dockerfile

@@ -3,7 +3,7 @@ FROM golang:1.21.1-bullseye AS builder
 WORKDIR /src
 COPY . .
 
-RUN CGO_ENABLED=0 GOFLAGS=-ldflags="-w" GOOS=linux GOARCH=amd64 go build -o /bin/check-labels label_checker.go \
+RUN CGO_ENABLED=0 GOFLAGS=-ldflags="-w" GOOS=linux GOARCH=${BUILDARCH} go build -o /bin/check-labels label_checker.go \
     # Strip any symbols - this is not a library
     && strip /bin/check-labels \
     # Compress the compiled action using UPX (https://upx.github.io/)