code: def start_mon_service(distro, cluster, hostname):
      
      if distro.init == 'sysvinit':
          service = distro.conn.remote_module.which_service()
          remoto.process.run(
              distro.conn,
              [
                  service,
                  'ceph',
                  '-c',
                  '/etc/ceph/{cluster}.conf'.format(cluster=cluster),
                  'start',
                  'mon.{hostname}'.format(hostname=hostname)
              ],
              timeout=7,
          )
          system.enable_service(distro.conn)
  
      elif distro.init == 'upstart':
          remoto.process.run(
               distro.conn,
               [
                   'initctl',
                   'emit',
                   'ceph-mon',
                   'cluster={cluster}'.format(cluster=cluster),
                   'id={hostname}'.format(hostname=hostname),
               ],
               timeout=7,
           )
  
      elif distro.init == 'systemd':
         # enable ceph target for this host (in case it isn't already enabled)
          remoto.process.run(
              distro.conn,
              [
                  'systemctl',
                  'enable',
                  'ceph.target'
              ],
              timeout=7,
          )
  
          # enable and start this mon instance
          remoto.process.run(
              distro.conn,
              [
                  'systemctl',
                  'enable',
                  'ceph-mon@{hostname}'.format(hostname=hostname),
              ],
              timeout=7,
          )
          remoto.process.run(
              distro.conn,
              [
                  'systemctl',
                  'start',
                  'ceph-mon@{hostname}'.format(hostname=hostname),
              ],
              timeout=7,
          )
docs: start mon service depending on distro init