/etc/pm/sleep.d/25-ceph is in ceph 10.1.2-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12  | #!/bin/sh
##/etc/pm/sleep.d/25-ceph
case $1 in
suspend|hibernate)
    service ceph stop
;;
resume|thaw)
    service ceph start
;;
esac
 |