Multi Platform Support (#18)

* Add multi-platform Docker image support (amd64 + arm64)

Enable native arm64 support for Apple Silicon users by building
multi-architecture images via buildx. Uses TARGETARCH for explicit
Go cross-compilation.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Update README.md with tag v0.0.7

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Add QEMU setup for multi-platform Docker builds

Required for arm64 emulation on amd64 runners.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Use cross-compilation for multi-platform Docker builds

Replace QEMU emulation with native cross-compilation by adding
--platform=$BUILDPLATFORM to the build stage. Go cross-compiles
to the target architecture natively, eliminating slow emulation.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Update GitHub Actions to latest versions and add image output

- actions/checkout v4 → v6
- actions/setup-go v4 → v6 (caching now enabled by default)
- golangci/golangci-lint-action v8 → v9
- Add step to output pushed image registry path

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: akshat-kumar-singhal

.github/workflows/go.yaml

@@ -12,24 +12,22 @@ jobs:
     runs-on: ubuntu-latest
     name: Test and Build
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v4
+      - uses: actions/checkout@v6
+      - uses: actions/setup-go@v6
         with:
           go-version: '1.26'
-          cache: true
       - name: Test
         run: go test ./...
 
   code_quality:
     name: Code Quality🎖️
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v4
+      - uses: actions/checkout@v6
+      - uses: actions/setup-go@v6
         with:
           go-version: '1.26'
-          cache: true
-      - uses: golangci/golangci-lint-action@v8
+      - uses: golangci/golangci-lint-action@v9
         with:
           version: v2.10.1
           args: --timeout 9m0s
@@ -67,7 +65,7 @@ jobs:
       contents: read
       packages: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: docker/setup-buildx-action@v3
 
@@ -84,9 +82,13 @@ jobs:
           push: true
           context: .
           file: Dockerfile
+          platforms: linux/amd64,linux/arm64
           provenance: true
           sbom: true
           cache-from: type=gha
           cache-to: type=gha,mode=max
           tags: |
             ${{ vars.DOCKER_REGISTRY_TARGET }}:${{ env.RELEASE_VERSION }}
+
+      - name: Output Image Path
+        run: echo "Image pushed to ${{ vars.DOCKER_REGISTRY_TARGET }}:${{ env.RELEASE_VERSION }}"

Dockerfile

@@ -1,5 +1,5 @@
-# Build stage
-FROM golang:1.26 AS build
+# Build stage - runs on native platform, cross-compiles to target
+FROM --platform=$BUILDPLATFORM golang:1.26 AS build
 
 WORKDIR /src
 
@@ -9,7 +9,9 @@ RUN go mod download
 
 # Copy source code (this layer changes frequently)
 COPY . .
-RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o /app/main main.go
+
+ARG TARGETARCH
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} go build -ldflags="-s -w" -o /app/main main.go
 
 # Final stage - distroless
 FROM gcr.io/distroless/static-debian12

README.md

@@ -22,7 +22,7 @@ To deploy the server, you need to build a Docker image using the provided `Docke
 ```dockerfile
 # Use the official static-server image as the base image
 # This will pull the prebuilt version of the static-server to run your static website
-FROM zopdev/static-server:v0.0.6
+FROM zopdev/static-server:v0.0.7
 
 # Copy static files into the container
 # The 'COPY' directive moves your static files (in this case, located at '/app/out') into the '/website' directory