ceph/qa/tasks/ceph_iscsi_client.py

   1 """
   2 Set up ceph-iscsi client.
   3 """
   4 import logging
   5 import contextlib
   6 from textwrap import dedent
   7
   8 log = logging.getLogger(__name__)
   9
  10
  11 @contextlib.contextmanager
  12 def task(ctx, config):
  13     """
  14     Set up ceph-iscsi client.
  15
  16       tasks:
  17         ceph_iscsi_client:
  18           clients: [client.1]
  19     """
  20     log.info('Setting up ceph-iscsi client...')
  21     for role in config['clients']:
  22         (remote,) = (ctx.cluster.only(role).remotes.keys())
  23
  24         conf = dedent('''
  25         InitiatorName=iqn.1994-05.com.redhat:client
  26         ''')
  27         path = "/etc/iscsi/initiatorname.iscsi"
  28         remote.sudo_write_file(path, conf, mkdir=True)
  29
  30         # the restart is needed after the above change is applied
  31         remote.run(args=['sudo', 'systemctl', 'restart', 'iscsid'])
  32
  33         remote.run(args=['sudo', 'modprobe', 'dm_multipath'])
  34         remote.run(args=['sudo', 'mpathconf', '--enable'])
  35         conf = dedent('''
  36         devices {
  37                 device {
  38                         vendor                 "LIO-ORG"
  39                         product                "TCMU device"
  40                         hardware_handler       "1 alua"
  41                         path_grouping_policy   "failover"
  42                         path_selector          "queue-length 0"
  43                         failback               60
  44                         path_checker           tur
  45                         prio                   alua
  46                         prio_args              exclusive_pref_bit
  47                         fast_io_fail_tmo       25
  48                         no_path_retry          queue
  49                 }
  50         }
  51         ''')
  52         path = "/etc/multipath.conf"
  53         remote.sudo_write_file(path, conf, append=True)
  54         remote.run(args=['sudo', 'systemctl', 'start', 'multipathd'])
  55
  56     yield