--- /dev/null
+from __future__ import print_function
+import argparse
+import logging
+import os
+from textwrap import dedent
+from ceph_volume import process, conf, decorators
+from ceph_volume.util import system, disk
+from ceph_volume.util import prepare as prepare_utils
+from ceph_volume.systemd import systemctl
+from ceph_volume.api import lvm as api
+
+
+logger = logging.getLogger(__name__)
+
+
+def activate_filestore(lvs):
+ # find the osd
+ osd_lv = lvs.get(lv_tags={'ceph.type': 'data'})
+ if not osd_lv:
+ raise RuntimeError('Unable to find a data LV for filestore activation')
+ osd_id = osd_lv.tags['ceph.osd_id']
+ conf.cluster = osd_lv.tags['ceph.cluster_name']
+ # it may have a volume with a journal
+ osd_journal_lv = lvs.get(lv_tags={'ceph.type': 'journal'})
+ # TODO: add sensible error reporting if this is ever the case
+ # blow up with a KeyError if this doesn't exist
+ osd_fsid = osd_lv.tags['ceph.osd_fsid']
+ if not osd_journal_lv:
+ # must be a disk partition, by quering blkid by the uuid we are ensuring that the
+ # device path is always correct
+ osd_journal = disk.get_device_from_partuuid(osd_lv.tags['ceph.journal_uuid'])
+ else:
+ osd_journal = osd_lv.tags['ceph.journal_device']
+
+ if not osd_journal:
+ raise RuntimeError('unable to detect an lv or device journal for OSD %s' % osd_id)
+
+ # mount the osd
+ source = osd_lv.lv_path
+ destination = '/var/lib/ceph/osd/%s-%s' % (conf.cluster, osd_id)
+ if not system.device_is_mounted(source, destination=destination):
+ process.run(['mount', '-v', source, destination])
+
+ # always re-do the symlink regardless if it exists, so that the journal
+ # device path that may have changed can be mapped correctly every time
+ destination = '/var/lib/ceph/osd/%s-%s/journal' % (conf.cluster, osd_id)
+ process.run(['ln', '-snf', osd_journal, destination])
+
+ # make sure that the journal has proper permissions
+ system.chown(osd_journal)
+
+ # enable the ceph-volume unit for this OSD
+ systemctl.enable_volume(osd_id, osd_fsid, 'lvm')
+
+ # start the OSD
+ systemctl.start_osd(osd_id)
+
+
+def get_osd_device_path(osd_lv, lvs, device_type):
+ """
+ ``device_type`` can be one of ``db``, ``wal`` or ``block`` so that
+ we can query ``lvs`` (a ``Volumes`` object) and fallback to querying the uuid
+ if that is not present.
+
+ Return a path if possible, failing to do that a ``None``, since some of these devices
+ are optional
+ """
+ osd_lv = lvs.get(lv_tags={'ceph.type': 'block'})
+ uuid_tag = 'ceph.%s_uuid' % device_type
+ device_uuid = osd_lv.tags.get(uuid_tag)
+ if not device_uuid:
+ return None
+
+ device_lv = lvs.get(lv_uuid=device_uuid)
+ if device_lv:
+ return device_lv.lv_path
+ else:
+ # this could be a regular device, so query it with blkid
+ physical_device = disk.get_device_from_partuuid(device_uuid)
+ return physical_device or None
+ return None
+
+
+def activate_bluestore(lvs):
+ # find the osd
+ osd_lv = lvs.get(lv_tags={'ceph.type': 'block'})
+ osd_id = osd_lv.tags['ceph.osd_id']
+ conf.cluster = osd_lv.tags['ceph.cluster_name']
+ osd_fsid = osd_lv.tags['ceph.osd_fsid']
+ db_device_path = get_osd_device_path(osd_lv, lvs, 'db')
+ wal_device_path = get_osd_device_path(osd_lv, lvs, 'wal')
+
+ # mount on tmpfs the osd directory
+ osd_path = '/var/lib/ceph/osd/%s-%s' % (conf.cluster, osd_id)
+ if not system.path_is_mounted(osd_path):
+ # mkdir -p and mount as tmpfs
+ prepare_utils.create_osd_path(osd_id, tmpfs=True)
+ # XXX This needs to be removed once ceph-bluestore-tool can deal with
+ # symlinks that exist in the osd dir
+ for link_name in ['block', 'block.db', 'block.wal']:
+ link_path = os.path.join(osd_path, link_name)
+ if os.path.exists(link_path):
+ os.unlink(os.path.join(osd_path, link_name))
+ # Once symlinks are removed, the osd dir can be 'primed again.
+ process.run([
+ 'ceph-bluestore-tool', '--cluster=%s' % conf.cluster,
+ 'prime-osd-dir', '--dev', osd_lv.lv_path,
+ '--path', osd_path])
+ # always re-do the symlink regardless if it exists, so that the block,
+ # block.wal, and block.db devices that may have changed can be mapped
+ # correctly every time
+ process.run(['ln', '-snf', osd_lv.lv_path, os.path.join(osd_path, 'block')])
+ system.chown(os.path.join(osd_path, 'block'))
+ system.chown(osd_path)
+ if db_device_path:
+ destination = os.path.join(osd_path, 'block.db')
+ process.run(['ln', '-snf', db_device_path, destination])
+ system.chown(db_device_path)
+ if wal_device_path:
+ destination = os.path.join(osd_path, 'block.wal')
+ process.run(['ln', '-snf', wal_device_path, destination])
+ system.chown(wal_device_path)
+
+ # enable the ceph-volume unit for this OSD
+ systemctl.enable_volume(osd_id, osd_fsid, 'lvm')
+
+ # start the OSD
+ systemctl.start_osd(osd_id)
+
+
+class Activate(object):
+
+ help = 'Discover and mount the LVM device associated with an OSD ID and start the Ceph OSD'
+
+ def __init__(self, argv):
+ self.argv = argv
+
+ @decorators.needs_root
+ def activate(self, args):
+ lvs = api.Volumes()
+ # filter them down for the OSD ID and FSID we need to activate
+ if args.osd_id and args.osd_fsid:
+ lvs.filter(lv_tags={'ceph.osd_id': args.osd_id, 'ceph.osd_fsid': args.osd_fsid})
+ elif args.osd_fsid and not args.osd_id:
+ lvs.filter(lv_tags={'ceph.osd_fsid': args.osd_fsid})
+ if not lvs:
+ raise RuntimeError('could not find osd.%s with fsid %s' % (args.osd_id, args.osd_fsid))
+ # This argument is only available when passed in directly or via
+ # systemd, not when ``create`` is being used
+ if getattr(args, 'auto_detect_objectstore', False):
+ logger.info('auto detecting objectstore')
+ # may get multiple lvs, so can't do lvs.get() calls here
+ for lv in lvs:
+ has_journal = lv.tags.get('ceph.journal_uuid')
+ if has_journal:
+ logger.info('found a journal associated with the OSD, assuming filestore')
+ return activate_filestore(lvs)
+ logger.info('unable to find a journal associated with the OSD, assuming bluestore')
+ return activate_bluestore(lvs)
+ if args.bluestore:
+ activate_bluestore(lvs)
+ elif args.filestore:
+ activate_filestore(lvs)
+
+ def main(self):
+ sub_command_help = dedent("""
+ Activate OSDs by discovering them with LVM and mounting them in their
+ appropriate destination:
+
+ ceph-volume lvm activate {ID} {FSID}
+
+ The lvs associated with the OSD need to have been prepared previously,
+ so that all needed tags and metadata exist.
+
+ """)
+ parser = argparse.ArgumentParser(
+ prog='ceph-volume lvm activate',
+ formatter_class=argparse.RawDescriptionHelpFormatter,
+ description=sub_command_help,
+ )
+
+ parser.add_argument(
+ 'osd_id',
+ metavar='ID',
+ nargs='?',
+ help='The ID of the OSD, usually an integer, like 0'
+ )
+ parser.add_argument(
+ 'osd_fsid',
+ metavar='FSID',
+ nargs='?',
+ help='The FSID of the OSD, similar to a SHA1'
+ )
+ parser.add_argument(
+ '--auto-detect-objectstore',
+ action='store_true',
+ help='Autodetect the objectstore by inspecting the OSD',
+ )
+ parser.add_argument(
+ '--bluestore',
+ action='store_true',
+ help='filestore objectstore (not yet implemented)',
+ )
+ parser.add_argument(
+ '--filestore',
+ action='store_true',
+ help='filestore objectstore (current default)',
+ )
+ if len(self.argv) == 0:
+ print(sub_command_help)
+ return
+ 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.activate(args)
Code Review / stor4nfv.git / blobdiff