ceph/src/ceph-volume/ceph_volume/devices/lvm/main.py

   1 import argparse
   2 from textwrap import dedent
   3 from ceph_volume import terminal
   4 from . import activate
   5 from . import prepare
   6 from . import create
   7 from . import trigger
   8 from . import listing
   9 from . import zap
  10 from . import batch
  11
  12
  13 class LVM(object):
  14
  15     help = 'Use LVM and LVM-based technologies like dmcache to deploy OSDs'
  16
  17     _help = dedent("""
  18     Use LVM and LVM-based technologies like dmcache to deploy OSDs
  19
  20     {sub_help}
  21     """)
  22
  23     mapper = {
  24         'activate': activate.Activate,
  25         'batch': batch.Batch,
  26         'prepare': prepare.Prepare,
  27         'create': create.Create,
  28         'trigger': trigger.Trigger,
  29         'list': listing.List,
  30         'zap': zap.Zap,
  31     }
  32
  33     def __init__(self, argv):
  34         self.argv = argv
  35
  36     def print_help(self, sub_help):
  37         return self._help.format(sub_help=sub_help)
  38
  39     def main(self):
  40         terminal.dispatch(self.mapper, self.argv)
  41         parser = argparse.ArgumentParser(
  42             prog='ceph-volume lvm',
  43             formatter_class=argparse.RawDescriptionHelpFormatter,
  44             description=self.print_help(terminal.subhelp(self.mapper)),
  45         )
  46         parser.parse_args(self.argv)
  47         if len(self.argv) <= 1:
  48             return parser.print_help()