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

   1 from __future__ import print_function
   2 from textwrap import dedent
   3 from ceph_volume.util import system
   4 from ceph_volume import decorators
   5 from .common import create_parser
   6 from .prepare import Prepare
   7 from .activate import Activate
   8
   9
  10 class Create(object):
  11
  12     help = 'Create a new OSD from  an LVM device'
  13
  14     def __init__(self, argv):
  15         self.argv = argv
  16
  17     @decorators.needs_root
  18     def create(self, args):
  19         if not args.osd_fsid:
  20             args.osd_fsid = system.generate_uuid()
  21         Prepare([]).prepare(args)
  22         Activate([]).activate(args)
  23
  24     def main(self):
  25         sub_command_help = dedent("""
  26         Create an OSD by assigning an ID and FSID, registering them with the
  27         cluster with an ID and FSID, formatting and mounting the volume, adding
  28         all the metadata to the logical volumes using LVM tags, and starting
  29         the OSD daemon.
  30
  31         Example calls for supported scenarios:
  32
  33         Filestore
  34         ---------
  35
  36           Existing logical volume (lv) or device:
  37
  38               ceph-volume lvm create --filestore --data {vg name/lv name} --journal /path/to/device
  39
  40           Or:
  41
  42               ceph-volume lvm create --filestore --data {vg name/lv name} --journal {vg name/lv name}
  43
  44         """)
  45         parser = create_parser(
  46             prog='ceph-volume lvm create',
  47             description=sub_command_help,
  48         )
  49         if len(self.argv) == 0:
  50             print(sub_command_help)
  51             return
  52         args = parser.parse_args(self.argv)
  53         # Default to bluestore here since defaulting it in add_argument may
  54         # cause both to be True
  55         if args.bluestore is None and args.filestore is None:
  56             args.bluestore = True
  57         self.create(args)