diff --git a/.dockerignore b/.dockerignore
index 58ecf2c20..35b6354a9 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -2,3 +2,5 @@
 .git/
 
 uoj_data/
+
+.config.local.php
diff --git a/.gitignore b/.gitignore
index 27e821fc1..b013f6e36 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea
 uoj_data/
 .php-cs-fixer.cache
+.config.local.php
diff --git a/docker-compose.yml b/docker-compose.yml
index 5f85d1a6f..7dbae208b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -52,6 +52,9 @@ services:
     volumes:
       - ./uoj_data/web/data:/var/uoj_data
       - ./uoj_data/web/storage:/opt/uoj/web/app/storage
+      - type: bind
+        source: ./.config.local.php
+        target: /opt/uoj/web/app/.config.php
     ports:
       - "80:80"
       - "3690:3690"
diff --git a/prepare.sh b/prepare.sh
new file mode 100644
index 000000000..646117307
--- /dev/null
+++ b/prepare.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+echo "==> Preparing config file"
+
+genRandStr(){
+	cat /dev/urandom | tr -dc [:alnum:] | head -c $1
+}
+
+# 复制配置文件
+cp web/app/.default-config.php .config.local.php
+echo "==> Copied default config file"
+
+# 替换配置文件中的 salt
+sed -i -e "s/salt0/$(genRandStr 32)/g" \
+	-e "s/salt1/$(genRandStr 16)/g" \
+	-e "s/salt2/$(genRandStr 16)/g" \
+	-e "s/salt3/$(genRandStr 16)/g" \
+	.config.local.php
+echo "==> Replaced salt in config file"
+
+# 替换配置文件中的 _httpHost_
+sed -i -e "s/'_httpHost_'/UOJContext::httpHost()/g" .config.local.php
+echo "==> Replaced _httpHost_ in config file"
+
+echo ""
+echo "==> Done, config file is '.config.local.php'"
+echo "==> Please modify the config file according to your needs"
+echo "==> Then run 'docker-compose up -d' to start the service"
diff --git a/web/app/.default-config.php b/web/app/.default-config.php
index 0981d9d9f..4aa04213f 100644
--- a/web/app/.default-config.php
+++ b/web/app/.default-config.php
@@ -11,8 +11,8 @@
 	'database' => [
 		'database' => 'app_uoj233',
 		'username' => 'root',
-		'password' => '_database_password_',
-		'host' => '127.0.0.1'
+		'password' => 'root',
+		'host' => 'uoj-db'
 	],
 	'web' => [
 		'domain' => null,
@@ -51,6 +51,7 @@
 		]
 	],
 	'switch' => [
+		// 请在 page-header.php 中修改统计代码后再启用
 		'web-analytics' => false,
 		'blog-domain-mode' => 3
 	],
diff --git a/web/install.sh b/web/install.sh
index 36639347f..1b7705590 100644
--- a/web/install.sh
+++ b/web/install.sh
@@ -3,14 +3,7 @@ genRandStr(){
     cat /dev/urandom | tr -dc [:alnum:] | head -c $1
 }
 #Set some vars
-_database_host_="${DATABASE_HOST:-uoj-db}"
-_database_password_="${DATABASE_PASSWORD:-root}"
 _judger_socket_port_="${JUDGER_SOCKET_PORT:-2333}"
-_judger_socket_password_="${JUDGER_SOCKET_PASSWORD:-_judger_socket_password_}"
-_salt0_="${SALT_0:-salt0}"
-_salt1_="${SALT_1:-salt1}"
-_salt2_="${SALT_2:-salt2}"
-_salt3_="${SALT_3:-salt3}"
 _uoj_protocol_="${UOJ_PROTOCOL:-http}"
 
 getAptPackage(){
@@ -64,8 +57,6 @@ setWebConf(){
     # Set web config file
     php -a <<UOJEOF
 \$config = include '/var/www/uoj/app/.default-config.php';
-\$config['database']['host']='$_database_host_';
-\$config['database']['password']='$_database_password_';
 \$config['judger']['socket']['port']='$_judger_socket_port_';
 file_put_contents('/var/www/uoj/app/.config.php', "<?php\nreturn ".str_replace('\'_httpHost_\'','UOJContext::httpHost()',var_export(\$config, true)).";\n");
 UOJEOF
@@ -85,8 +76,6 @@ initProgress(){
     #Set uoj_data path
     mkdir -p /var/uoj_data/upload
     chown -R www-data:www-data /var/uoj_data
-    #Replace password placeholders
-    sed -i -e "s/salt0/$_salt0_/g" -e "s/salt1/$_salt1_/g" -e "s/salt2/$_salt2_/g" -e "s/salt3/$_salt3_/g" -e "s/_judger_socket_password_/$_judger_socket_password_/g" /var/www/uoj/app/.config.php
     #Using cli upgrade to latest
     php /var/www/uoj/app/cli.php upgrade:latest
     #Start services