feat: add support for multi arch docker

.github/workflows/upload-docker.yml

@@ -15,6 +15,9 @@ jobs:
       - name: Log payload
         run: echo "Received tag:\ ${{ github.event.client_payload.tag }}"
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -24,15 +27,22 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
-      - name: Build and push Docker image
+      - name: Prepare tags
+        id: prep
         run: |
           TAG=${{ github.event.client_payload.tag }}
           DOCKER_TAG=${TAG//+/-}
-          docker build \
-            -t canopynetwork/canopy:${DOCKER_TAG} \
-            -t canopynetwork/canopy:latest \
-            --build-arg BRANCH=${TAG} \
-            --build-arg BUILD_PATH=cmd/cli \
-            ./docker_image/
-          docker push canopynetwork/canopy:${DOCKER_TAG}
-          docker push canopynetwork/canopy:latest
+          echo "docker_tag=${DOCKER_TAG}" >> $GITHUB_OUTPUT
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: ./docker_image/
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            canopynetwork/canopy:${{ steps.prep.outputs.docker_tag }}
+            canopynetwork/canopy:latest
+          build-args: |
+            BRANCH=${{ github.event.client_payload.tag }}
+            BUILD_PATH=cmd/cli

README.md

@@ -50,6 +50,16 @@ For more information please refer to [Monitoring stack README.md](./monitoring-s
 
 It contains the [Dockerfile]([url](https://github.com/canopy-network/deployments/tree/master/docker_image)) and entrypoint.sh used by all the stacks in order to have a centralized way of building the canopy image
 
+##### Multi-architecture support
+
+The Docker image supports both `amd64` and `arm64` architectures. When building via the GitHub Actions workflow, images are automatically built for both platforms and published as a multi-arch manifest.
+
+For multi-platform builds locally using Docker Buildx:
+
+```bash
+docker buildx build --platform linux/amd64,linux/arm64 -t canopynetwork/canopy:local ./docker_image/
+```
+
 
 #### Canopy config files
 

docker_image/Dockerfile

@@ -6,6 +6,7 @@ ARG BUILD_PATH=cmd/cli
 ARG GO_BIN_DIR
 ARG BUILD_LOCAL=False
 ARG BIN_PATH=/bin/cli
+ARG TARGETARCH
 
 # downloads git and clones selected version
 RUN apk add --no-cache git ca-certificates alpine-sdk
@@ -32,12 +33,12 @@ RUN make build/wallet
 RUN make build/explorer
 
 # Builds auto-update CLI
-RUN CGO_ENABLED=0 GOOS=linux go build -a -o bin ./cmd/auto-update/.
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} go build -a -o bin ./cmd/auto-update/.
 
 # Only build if the file at ${BIN_PATH} doesn't already exist
 RUN if [ ! -f "${BIN_PATH}" ]; then \
     echo "File ${BIN_PATH} not found. Building it..."; \
-    CGO_ENABLED=0 GOOS=linux go build -a -o "${BIN_PATH}" ./cmd/main/...; \
+    CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} go build -a -o "${BIN_PATH}" ./cmd/main/...; \
   else \
     echo "File ${BIN_PATH} already exists. Skipping build."; \
   fi