/etc/logrotate.d/globus-job-manager is in globus-gram-job-manager 14.20-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 | /var/log/globus/gram_*.log {
    daily
    dateext
    compress
    missingok
    notifempty
    nocreate
    rotate 4
    sharedscripts
    postrotate
        /usr/bin/killall -USR1 globus-job-manager 2> /dev/null || true
    endscript
}
 |