Enhance Docker setup: add QEMU configuration and improve Dockerfile comments for clarity

2 files changed, 6 insertions, 3 deletions

diff --git a/.github/workflows/docker_build.yml b/.github/workflows/docker_build.yml
index 0d13852..608592c 100644
--- a/.github/workflows/docker_build.yml
+++ b/.github/workflows/docker_build.yml
@@ -25,6 +25,9 @@ jobs:
       - name: Lowercase image name
         run: echo "IMAGE_NAME=${IMAGE_NAME,,}" >> $GITHUB_ENV
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
diff --git a/Dockerfile b/Dockerfile
index cfb3e0a..3530ae0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
-# Build stage
-FROM oven/bun:latest AS build
+# Build stage - runs on native platform for speed
+FROM --platform=$BUILDPLATFORM oven/bun:latest AS build
 
 WORKDIR /app
 
@@ -9,7 +9,7 @@ RUN bun install --frozen-lockfile
 COPY . .
 RUN bun run build
 
-# Production stage
+# Production stage - targets the deployment platform
 FROM nginx:alpine
 
 COPY --from=build /app/dist /usr/share/nginx/html