/etc/init/ceph-mds-all.conf is in ceph-mds 0.80.7-2+deb8u2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | description "Ceph MDS (all instances)"
start on starting ceph-all
stop on stopping ceph-all
|