fixed image build

Author: darkoatanasovski

.github/workflows/docker-publish.yml

@@ -19,11 +19,6 @@ jobs:
       contents: read
       packages: write
       id-token: write
-    strategy:
-      matrix:
-        platform:
-          - linux/amd64
-          - linux/arm64
 
     steps:
       - name: Checkout repository
@@ -35,6 +30,10 @@ jobs:
         with:
           cosign-release: "v2.2.4"
 
+      # Set up QEMU for multi-arch builds
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -57,6 +56,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
+          platforms: linux/amd64,linux/arm64
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -11,10 +11,12 @@ RUN npm run build
 # Stage 2: Build Backend
 FROM golang:1.23-alpine AS backend-builder
 WORKDIR /app
+RUN apk add --no-cache git
 COPY go.mod go.sum ./
 RUN go mod download
 COPY . .
-RUN CGO_ENABLED=0 GOOS=linux go build -o server cmd/main.go
+ARG TARGETARCH
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=$TARGETARCH go build -o server cmd/main.go
 
 # Stage 3: Final Image
 FROM alpine:latest