/proc/2156873/root/etc/logrotate.d/ Current File: //proc/2156873/root/etc/logrotate.d/unattended-upgrades

/var/log/unattended-upgrades/unattended-upgrades.log 
/var/log/unattended-upgrades/unattended-upgrades-dpkg.log
/var/log/unattended-upgrades/unattended-upgrades-shutdown.log
{
  rotate 6
  monthly
  compress
  missingok
  notifempty
}