Add compose file for syncthing on the server

syncthing_server.yaml

@@ -0,0 +1,17 @@
+version: "3"
+services:
+  syncthing:
+    image: lscr.io/linuxserver/syncthing:latest
+    container_name: syncthing
+    environment:
+      - PUID=0
+      - PGID=0
+    volumes:
+      - <docker directory>/syncthing/config:/config
+      - <sync directory>:/sync
+    ports:
+      - 8384:8384
+      - 22000:22000/tcp
+      - 22000:22000/udp
+      - 21027:21027/udp
+    restart: unless-stopped