add syncthing service to IOTstack

Author: pmoya-in-the-web

.templates/syncthing/service.yml

@@ -0,0 +1,19 @@
+  syncthing:
+    image: linuxserver/syncthing:latest
+    container_name: syncthing
+    hostname: syncthing #optional
+    
+    environment:
+      - PUID=1000
+      - PGID=1000
+      - TZ=Europe/Madrid
+    volumes:
+      - ./volumes/syncthing/config:/config
+      
+    ports:
+      - 8384:8384 # Web UI
+      - 22000:22000/tcp # TCP file transfers
+      - 22000:22000/udp # QUIC file transfers
+      - 21027:21027/udp # Receive local discovery broadcasts
+    restart: unless-stopped
+