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