Add arm multi platform support

.github/workflows/build-and-release.yml

@@ -12,36 +12,35 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Check out code
-        uses: actions/checkout@master
+        uses: actions/checkout@v4
         with:
           fetch-depth: 1
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
       - name: Docker login
         uses: azure/docker-login@v1
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
-      - name: Docker edge build & tag
+      - name: Docker edge build & push
         if: startsWith(github.ref, 'refs/tags/') != true && success()
         run: |
-          DOCKER_BUILDKIT=1 docker build --no-cache -t ${{ secrets.IMAGE_NAME }}:edge-latest .
-          docker tag ${{ secrets.IMAGE_NAME }}:edge-latest ${{ secrets.IMAGE_NAME }}:edge-${GITHUB_SHA::7}
-      - name: Docker edge push
-        if: startsWith(github.ref, 'refs/tags/') != true && success()
-        run: |
-          docker push ${{ secrets.IMAGE_NAME }}:edge-latest
-          docker push ${{ secrets.IMAGE_NAME }}:edge-${GITHUB_SHA::7}
-      - name: Docker stable build & tag
-        if: github.event_name != 'pull_request' && startsWith(github.ref, 'refs/tags/') && success()
-        run: |
-          DOCKER_BUILDKIT=1 docker build --no-cache -t ${{ secrets.IMAGE_NAME }}:stable-latest .
-          docker tag ${{ secrets.IMAGE_NAME }}:stable-latest ${{ secrets.IMAGE_NAME }}:stable-${GITHUB_REF/refs\/tags\//}
-          docker tag ${{ secrets.IMAGE_NAME }}:stable-latest ${{ secrets.IMAGE_NAME }}:stable-${GITHUB_SHA::7}
-      - name: Docker stable push
+          docker buildx build --platform linux/amd64,linux/arm64 \
+            --push \
+            --no-cache \
+            -t ${{ secrets.IMAGE_NAME }}:edge-latest \
+            -t ${{ secrets.IMAGE_NAME }}:edge-${GITHUB_SHA::7} \
+            .
+      - name: Docker stable build & push
         if: github.event_name != 'pull_request' && startsWith(github.ref, 'refs/tags/') && success()
         run: |
-          docker push ${{ secrets.IMAGE_NAME }}:stable-latest
-          docker push ${{ secrets.IMAGE_NAME }}:stable-${GITHUB_REF/refs\/tags\//}
-          docker push ${{ secrets.IMAGE_NAME }}:stable-${GITHUB_SHA::7}
+          docker buildx build --platform linux/amd64,linux/arm64 \
+            --push \
+            --no-cache \
+            -t ${{ secrets.IMAGE_NAME }}:stable-latest \
+            -t ${{ secrets.IMAGE_NAME }}:stable-${GITHUB_REF/refs\/tags\//} \
+            -t ${{ secrets.IMAGE_NAME }}:stable-${GITHUB_SHA::7} \
+            .
 #       - name: Docker Hub Description
 #         if: github.event_name != 'pull_request' && startsWith(github.ref, 'refs/tags/') && success()
 #         uses: peter-evans/[email protected]

Dockerfile

@@ -1,5 +1,13 @@
 # Build the manager binary
-FROM golang:1.24 as builder 
+ARG BUILDPLATFORM=linux/amd64
+ARG TARGETPLATFORM=linux/amd64
+ARG TARGETOS=linux
+ARG TARGETARCH=amd64
+
+FROM --platform=${BUILDPLATFORM} golang:1.24 as builder
+
+ARG TARGETOS
+ARG TARGETARCH
 
 WORKDIR /workspace
 # Copy the Go Modules manifests
@@ -16,11 +24,12 @@ COPY controllers/ controllers/
 COPY pkg/ pkg/
 
 # Build
-RUN CGO_ENABLED=0 GO111MODULE=on go build -a -o manager main.go
+RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} GO111MODULE=on go build -a -o manager main.go
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details
-FROM gcr.io/distroless/static:nonroot
+ARG TARGETPLATFORM
+FROM --platform=${TARGETPLATFORM} gcr.io/distroless/static:nonroot
 WORKDIR /
 COPY --from=builder /workspace/manager .
 USER nonroot:nonroot

Makefile

@@ -150,13 +150,9 @@ docker-push: ## Push docker image with the manager.
 PLATFORMS ?= linux/arm64,linux/amd64
 .PHONY: docker-buildx
 docker-buildx: test ## Build and push docker image for the manager for cross-platform support
-	# copy existing Dockerfile and insert --platform=${BUILDPLATFORM} into Dockerfile.cross, and preserve the original Dockerfile
-	sed -e '1 s/\(^FROM\)/FROM --platform=\$$\{BUILDPLATFORM\}/; t' -e ' 1,// s//FROM --platform=\$$\{BUILDPLATFORM\}/' Dockerfile > Dockerfile.cross
-	- docker buildx create --name project-v3-builder
-	docker buildx use project-v3-builder
-	- docker buildx build --push --platform=$(PLATFORMS) --tag ${IMG} -f Dockerfile.cross .
+	- docker buildx create --name project-v3-builder --use
+	- docker buildx build --push --platform=$(PLATFORMS) --tag ${IMG} -f Dockerfile .
 	- docker buildx rm project-v3-builder
-	rm Dockerfile.cross
 
 ##@ Deployment