diff --git a/Dockerfile b/Dockerfile
index 1b1ece9..8f0fa22 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,8 @@ FROM debian:buster-slim
 # APT源配置：default / tencent / ustc / aliyun / huawei
 ARG apt_source=tencent
 
+ENV APP_USER=builder
+
 LABEL \
 	"Version"="v10" \
 	"Description"="Docker image for Builder based on Debian." \
diff --git a/alpine/Dockerfile b/alpine/Dockerfile
index 245557e..e9afb2c 100644
--- a/alpine/Dockerfile
+++ b/alpine/Dockerfile
@@ -8,6 +8,8 @@ FROM alpine:3.12
 # APK源配置：default / tencent / ustc / aliyun / huawei
 ARG apt_source=tencent
 
+ENV APP_USER=builder
+
 LABEL \
     "Version"="v3.12" \
 	"Description"="Docker image for Builder based on Alpine." \
diff --git a/customer/usr/sbin/create_user b/customer/usr/sbin/create_user
index f5be01e..95b2598 100755
--- a/customer/usr/sbin/create_user
+++ b/customer/usr/sbin/create_user
@@ -1,9 +1,9 @@
 #!/bin/bash
 # shell 执行参数，分别为 -e(命令执行错误则退出脚本) -u(变量未定义则报错) -x(打印实际待执行的命令行)
 set -eux
-groupadd --gid 998 --system builder
-useradd --gid 998 --uid 999 --shell /bin/bash --home /srv/data --system builder
+groupadd --gid 998 --system ${APP_USER}
+useradd --gid 998 --uid 999 --shell /bin/bash --home /srv/data --system ${APP_USER}
 
 # 如果需要 sudo 权限，需要安装 su 软件包：apk add sudo 
 sed -i -e 's/^\sDefaults\s*secure_path\s*=/# Defaults secure_path=/' /etc/sudoers
-echo 'builder ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers
\ No newline at end of file
+echo "${APP_USER} ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
\ No newline at end of file