Add arm support (#426)

* Add arm support

* Add arm support for dev build

* Remove load flag incompatible with multiarch builds

Author: Florian-S-A-W

.github/workflows/main.yml

@@ -14,12 +14,17 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      # Docker
-      - name: Docker production
-        run: docker build .
+      # Set up Docker Buildx for multi-arch support
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+     # Build multi-arch image
+      - name: Build Docker image (multi-arch)
+        run: |
+          docker buildx create --use
+          docker buildx build --platform linux/amd64,linux/arm64 .
       # Docker development
       - name: Docker development
-        run: docker build -f Dockerfile.brain.dev .
+        run: docker buildx build -f Dockerfile.brain.dev --platform linux/amd64,linux/arm64 .
   build:
     runs-on: ubuntu-latest
     steps:

.github/workflows/release.yml

@@ -21,11 +21,17 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      # Set up Docker Buildx for multi-arch support
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      # Build and push multi-arch Docker image
       - name: Build and push Staking brain docker monorepo
         uses: docker/build-push-action@v3
         with:
           file: Dockerfile
           push: true
+          platforms: linux/amd64, linux/arm64
           tags: ghcr.io/${{ github.repository_owner }}/staking-brain:${{ github.event.inputs.tag }}
 
   gh-release:

Dockerfile

@@ -1,7 +1,7 @@
 ARG DOCKER_IMAGE=node:20.17.0-alpine3.20
 
 # Build
-FROM ${DOCKER_IMAGE} AS build-stage
+FROM --platform=$TARGETPLATFORM ${DOCKER_IMAGE} AS build-stage
 
 WORKDIR /app
 COPY package.json yarn.lock tsconfig.json .yarnrc.yml ./
@@ -19,7 +19,7 @@ RUN yarn install --immutable && \
   yarn workspaces focus --all --production
 
 # Production
-FROM ${DOCKER_IMAGE}
+FROM --platform=$TARGETPLATFORM ${DOCKER_IMAGE}
 ENV NODE_ENV=production
 WORKDIR /app
 COPY ./packages/brain/tls ./tls

Dockerfile.brain.dev

@@ -1,5 +1,5 @@
 ARG DOCKER_IMAGE=node:20.17.0-alpine3.20
-FROM ${DOCKER_IMAGE} as build-stage
+FROM --platform=$TARGETPLATFORM ${DOCKER_IMAGE} as build-stage
 
 ENV NODE_ENV=development
 WORKDIR /app