chore: 项目整理
diff --git a/gateway/Dockerfile b/gateway/Dockerfile
index 372661c..b91c9f4 100644
--- a/gateway/Dockerfile
+++ b/gateway/Dockerfile
@@ -1,4 +1,4 @@
-FROM harbor.supwisdom.com/institute/openjdk:8-jre
+FROM harbor.supwisdom.com/institute/openjdk:8-jre-alpine
 
 ENV ENABLE_JMX_SSL=false
 ENV JAVA_OPTS -Djava.security.egd=file:/dev/./urandom -Dspring.profiles.active=docker