build arm64 image

.drone.yml

@@ -69,11 +69,17 @@ steps:
     commands:
       - IMAGE_TAG=$(cat /drone/src/LATEST_TAG.txt | tr -d '\n')
       - echo "🔨 Building Nakama image lila-games/nakama-server:$IMAGE_TAG"
+      # Enable buildx
+      - docker buildx create --use
+
+      # Build for ARM64
       - |
-        docker build \
+        docker buildx build \
+          --platform linux/arm64 \
           --network=host \
           -t lila-games/nakama-server:$IMAGE_TAG \
           -t lila-games/nakama-server:latest \
+          --push \
           /drone/src
 
   # -----------------------------------------------------