make multi arch builder

Author: mrasif

.github/workflows/release.yaml

@@ -66,31 +66,46 @@ jobs:
   build-docker:
     runs-on: ubuntu-latest
 
+    permissions:
+      contents: read
+      packages: write
+
     steps:
       - uses: actions/checkout@v4
-      - uses: docker/setup-buildx-action@v3
+
+      # Enable QEMU (for ARM builds)
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      # Enable Buildx
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      # Login to GHCR
+      - name: Login to GHCR
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Set image tag
       - name: Set Docker image tag
-        id: image_tag
         run: |
           if [[ "${GITHUB_REF_TYPE}" == "tag" ]]; then
             echo "IMAGE_TAG=${GITHUB_REF_NAME}" >> $GITHUB_ENV
           else
             echo "IMAGE_TAG=latest" >> $GITHUB_ENV
           fi
-      - name: Build Docker image
-        run: |
-          docker build \
-            -f Dockerfile \
-            --build-arg="VERSION=${IMAGE_TAG}" --build-arg="COMMIT=$(git rev-parse --short HEAD)" --build-arg="BUILDDATE=$(date +%Y-%m-%d)" \
-            -t ghcr.io/${{ github.repository_owner }}/telepath:${IMAGE_TAG} .
 
-      - name: Push Docker image
-        uses: docker/login-action@v2
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Push image
+      # Multi-arch build + push
+      - name: Build and Push Multi-Arch Image
         run: |
-          docker push ghcr.io/${{ github.repository_owner }}/telepath:${IMAGE_TAG}
+          docker buildx build \
+            --platform linux/amd64,linux/arm64,linux/arm/v7 \
+            -f Dockerfile \
+            --build-arg VERSION=${IMAGE_TAG} \
+            --build-arg COMMIT=$(git rev-parse --short HEAD) \
+            --build-arg BUILDDATE=$(date +%Y-%m-%d) \
+            -t ghcr.io/${{ github.repository_owner }}/telepath:${IMAGE_TAG} \
+            --push .