Ceph

It should be straight forward to fix, this is how ceph-deploy does it which is the same as the Ceph init scripts:

def is_systemd(conn):
    """ 
    Attempt to detect if a remote system is a systemd one or not
    by looking into ``/proc`` just like the ceph init script does::

        # detect systemd
        # SYSTEMD=0
        grep -qs systemd /proc/1/comm && SYSTEMD=1
    """ 
    return conn.remote_module.grep(
        'systemd',
        '/proc/1/comm'
    )