Added soft-serve

Added graphana/prometheus (not working yet)

Signed-off-by: TuDatTr <tuan-dat.tran@tudattr.dev>

README.md

@@ -138,8 +138,18 @@ used ipv4:
   interface: wg_tunnel01
 
 ## troubleshooting
-when problems with docker: `docker system prune -a`
+### Docker networking problem
+`docker system prune -a`
+### Time problems (NTP service: n/a)
+systemctl status systemd-timesyncd.service
+when not available
+sudo apt install systemd-timesyncd/stable
+### Syncthing inotify
+echo "fs.inotify.max_user_watches=204800" | sudo tee -a /etc/sysctl.conf
+https://forum.cloudron.io/topic/7163/how-to-increase-inotify-limit-for-syncthing/2
 
 ## Todo
 - Role to load customization/configurations from backup to servers
 - split docker containers to different composes or tag
+- syncthing and grafana config on hosts
+- grafana/prometheus