I checked online but I didn't find a way of adding the IP to every log. Is there a way or a config to do it?

Also I want to set TTL but maintain a backup of the data before deletion.as well. Do you have a recommendation?
If we run another delayed member of a replica set with maximum compression, Will that Backup replica have the backup data or will the TTL delete the data from that backup? Example, main replica sets have 2016/2015 data with 1 year TTL. A backup Replica will be running with a one year delay. Will the backup member have 2015/2014?