1 files changed, 77 insertions, 0 deletions
diff --git a/src/ceph-volume/ceph_volume/devices/lvm/create.py b/src/ceph-volume/ceph_volume/devices/lvm/create.py
new file mode 100644
index 000000000..af2cd96c0
--- /dev/null
+++ b/src/ceph-volume/ceph_volume/devices/lvm/create.py
@@ -0,0 +1,77 @@
+from __future__ import print_function
+from textwrap import dedent
+import logging
+from ceph_volume.util import system
+from ceph_volume.util.arg_validators import exclude_group_options
+from ceph_volume import decorators, terminal
+from .common import create_parser, rollback_osd
+from .prepare import Prepare
+from .activate import Activate
+
+logger = logging.getLogger(__name__)
+
+
+class Create(object):
+
+    help = 'Create a new OSD from an LVM device'
+
+    def __init__(self, argv):
+        self.argv = argv
+
+    @decorators.needs_root
+    def create(self, args):
+        if not args.osd_fsid:
+            args.osd_fsid = system.generate_uuid()
+        prepare_step = Prepare([])
+        prepare_step.safe_prepare(args)
+        osd_id = prepare_step.osd_id
+        try:
+            # we try this for activate only when 'creating' an OSD, because a rollback should not
+            # happen when doing normal activation. For example when starting an OSD, systemd will call
+            # activate, which would never need to be rolled back.
+            Activate([]).activate(args)
+        except Exception:
+            logger.exception('lvm activate was unable to complete, while creating the OSD')
+            logger.info('will rollback OSD ID creation')
+            rollback_osd(args, osd_id)
+            raise
+        terminal.success("ceph-volume lvm create successful for: %s" % args.data)
+
+    def main(self):
+        sub_command_help = dedent("""
+        Create an OSD by assigning an ID and FSID, registering them with the
+        cluster with an ID and FSID, formatting and mounting the volume, adding
+        all the metadata to the logical volumes using LVM tags, and starting
+        the OSD daemon. This is a convenience command that combines the prepare
+        and activate steps.
+
+        Encryption is supported via dmcrypt and the --dmcrypt flag.
+
+        Existing logical volume (lv):
+
+            ceph-volume lvm create --data {vg/lv}
+
+        Existing block device (a logical volume will be created):
+
+            ceph-volume lvm create --data /path/to/device
+
+        Optionally, can consume db and wal block devices, partitions or logical
+        volumes. A device will get a logical volume, partitions and existing
+        logical volumes will be used as is:
+
+            ceph-volume lvm create --data {vg/lv} --block.wal {partition} --block.db {/path/to/device}
+        """)
+        parser = create_parser(
+            prog='ceph-volume lvm create',
+            description=sub_command_help,
+        )
+        if len(self.argv) == 0:
+            print(sub_command_help)
+            return
+        exclude_group_options(parser, groups=['filestore', 'bluestore'], argv=self.argv)
+        args = parser.parse_args(self.argv)
+        # Default to bluestore here since defaulting it in add_argument may
+        # cause both to be True
+        if not args.bluestore and not args.filestore:
+            args.bluestore = True
+        self.create(args)