* set default metrics port 8889
* set default metrics port 51821
* add metrics port to server config
* bind caddy only on tcp
* add var for pulling files
* add new line
* update peer update model
* check if port is not zero
* set replace peer to false on pull
* do not replace peers on failover sync
* remove debug log
* add old peer update fields for backwards compatibility
* add old json tag
* add debug log in caller trace func