fix: preserve persistent data across redeploys

CHANGELOG.md

@@ -17,5 +17,7 @@ All notable changes to this project will be documented in this file.
 - Log default admin password and require change on first login
 - Ensure database directory exists and `/tests` endpoint is accessible
 - Resolve missing ping command and other display issues
+- Preserve Docker volume by parameterising `DATA_DIR` in deploy script
 - Show default admin password and login URL in Docker startup logs
 
+

CHANGELOG.zh.md

@@ -17,5 +17,7 @@
 - 记录默认管理员密码并要求首次登录后修改
 - 确保数据库目录存在且 `/tests` 接口可访问
 - 解决缺少 ping 命令等显示问题
+- 部署脚本参数化 `DATA_DIR` 以避免重建时丢失数据卷
 - 在启动日志中显示默认管理员密码和登录地址
 
+

README.md

@@ -44,6 +44,8 @@ docker compose up -d
 ```
 
 Default data will be stored under `/opt/NodeProbe/data/`.
+The directory can be customised by setting the `DATA_DIR` environment variable
+before running Docker Compose or `deploy.sh`.
 
 Access example:
 

README.zh.md

@@ -44,6 +44,8 @@ docker compose up -d
 ```
 
 默认数据存储于 `/opt/NodeProbe/data/`。
+可通过设置 `DATA_DIR` 环境变量自定义该目录，运行 Docker Compose 或
+`deploy.sh` 时会自动使用此路径。
 
 访问示例：
 
@@ -75,6 +77,7 @@ docker run -d --name nodeprobe -p 8380:8380 \
 ```
 
 默认数据会保存到 `/opt/NodeProbe/data/`。
+同样可通过 `DATA_DIR` 环境变量进行更改。
 
 ## 更新日志
 

deploy.sh

@@ -3,10 +3,18 @@ set -e
 
 # Absolute path of script
 BASE_DIR="$(cd "$(dirname "$0")" && pwd)"
-# Use a persistent data directory that matches the project name
-DATA_DIR="/opt/NodeProbe/data"
 
+# Use a persistent data directory that matches the project name.  This avoids
+# wiping existing volumes when the repository is redeployed from a different
+# location or under a different name.
+PROJECT_NAME="$(basename "$BASE_DIR")"
+DATA_DIR="/opt/${PROJECT_NAME}/data"
+
+# Ensure the directory exists and expose it for docker-compose variable
+# substitution.
 mkdir -p "$DATA_DIR"
+export DATA_DIR
+
 cd "$BASE_DIR"
 
 git pull

docker-compose.yml

@@ -4,5 +4,5 @@ services:
     ports:
       - "8380:8380"
     volumes:
-      - /opt/NodeProbe/data:/app/data
+      - ${DATA_DIR:-/opt/NodeProbe/data}:/app/data
     restart: unless-stopped