Auto-sync: 2026-04-22 08:02

wiki/concepts/Docker-Compose.md

@@ -42,9 +42,23 @@ services:
 ## Used By
 - [[用docker安装it-tools]]
 - [[用docker安装transmission]]
+- [[如何删除旧的废弃的docker-container-volume]]
 - [[Navidrome]]
 - [[Jellyfin]]
 - [[RSSHub]]
+- [[Portainer]]
+
+## External Mode
+Compose 文件中声明 `external: true` 可让 Docker 复用已存在的 Volume 或 Network 而非创建新的，避免重装时的命名冲突警告：
+```yaml
+volumes:
+  portainer_data:
+    external: true
+
+networks:
+  portainer_network:
+    external: true
+```
 
 ## Related Concepts
 - [[Docker-Image]]