Update Dockerfile

Author: silenceper

mainline/alpine/Dockerfile

@@ -139,7 +139,7 @@ RUN GPG_KEYS=B0F4253373F8F6F510D42178520A9993A1C052F8 \
 COPY nginx.conf /etc/nginx/nginx.conf
 COPY nginx.vh.default.conf /etc/nginx/conf.d/default.conf
 
-EXPOSE 80
+#EXPOSE 80
 
 STOPSIGNAL SIGTERM