Build multi-arch container images across stack
diff --git a/core/nebula/controller/Dockerfile.web b/core/nebula/controller/Dockerfile.web
index a82f86b..6c5a573 100644
--- a/core/nebula/controller/Dockerfile.web
+++ b/core/nebula/controller/Dockerfile.web
@@ -1,4 +1,6 @@
 FROM alpine:latest
 
-COPY web /usr/bin/nebula-web
+ARG TARGETARCH
+
+COPY web_${TARGETARCH} /usr/bin/nebula-web
 RUN chmod +x /usr/bin/nebula-web