def prepare_device(self, arg, device_type, cluster_fsid, osd_fsid): """ Check if ``arg`` is a device or partition to create an LV out of it with a distinct volume group name, assigning LV tags on it and ultimately, returning the logical volume object. Failing to detect a device or partition will result in error. :param arg: The value of ``--data`` when parsing args :param device_type: Usually, either ``data`` or ``block`` (filestore vs. bluestore) :param cluster_fsid: The cluster fsid/uuid :param osd_fsid: The OSD fsid/uuid """ if disk.is_partition(arg) or disk.is_device(arg): # we must create a vg, and then a single lv vg_name = "ceph-%s" % cluster_fsid if api.get_vg(vg_name=vg_name): # means we already have a group for this, make a different one # XXX this could end up being annoying for an operator, maybe? vg_name = "ceph-%s" % str(uuid.uuid4()) api.create_vg(vg_name, arg) lv_name = "osd-%s-%s" % (device_type, osd_fsid) return api.create_lv( lv_name, vg_name, # the volume group tags={'ceph.type': device_type}) else: error = [ 'Cannot use device (%s).' % arg, 'A vg/lv path or an existing device is needed' ] raise RuntimeError(' '.join(error)) raise RuntimeError('no data logical volume found with: %s' % arg)
def prepare_device(self, arg, device_type, cluster_fsid, osd_fsid): """ Check if ``arg`` is a device or partition to create an LV out of it with a distinct volume group name, assigning LV tags on it and ultimately, returning the logical volume object. Failing to detect a device or partition will result in error. :param arg: The value of ``--data`` when parsing args :param device_type: Usually, either ``data`` or ``block`` (filestore vs. bluestore) :param cluster_fsid: The cluster fsid/uuid :param osd_fsid: The OSD fsid/uuid """ if disk.is_partition(arg) or disk.is_device(arg): # we must create a vg, and then a single lv vg_name = "ceph-%s" % cluster_fsid if api.get_vg(vg_name=vg_name): # means we already have a group for this, make a different one # XXX this could end up being annoying for an operator, maybe? vg_name = "ceph-%s" % str(uuid.uuid4()) api.create_vg(vg_name, arg) lv_name = "osd-%s-%s" % (device_type, osd_fsid) return api.create_lv( lv_name, vg_name, # the volume group tags={'ceph.type': device_type}) else: error = [ 'Cannot use device (%s).' % arg, 'A vg/lv path or an existing device is needed'] raise RuntimeError(' '.join(error)) raise RuntimeError('no data logical volume found with: %s' % arg)
def get_vg(vg_name): """ Return a matching vg for the current system ... :param vg_name: The name of the VG """ vg = lvm.get_vg(vg_name) return vg
def test_single_vg_is_matched(self, volume_groups, monkeypatch): FooVG = api.VolumeGroup(vg_name='foo') volume_groups.append(FooVG) monkeypatch.setattr(api, 'VolumeGroups', lambda: volume_groups) assert api.get_vg(vg_name='foo') == FooVG
def test_nothing_is_passed_in(self): # so we return a None assert api.get_vg() is None
def test_single_vg_is_matched(self, volume_groups, monkeypatch): FooVG = api.VolumeGroup(vg_name='foo') volume_groups.append(FooVG) monkeypatch.setattr(api, 'VolumeGroups', lambda: volume_groups) assert api.get_vg(vg_name='foo') == FooVG
def test_nothing_is_passed_in(self): # so we return a None assert api.get_vg() is None
def prepare(self, args): # FIXME we don't allow re-using a keyring, we always generate one for the # OSD, this needs to be fixed. This could either be a file (!) or a string # (!!) or some flags that we would need to compound into a dict so that we # can convert to JSON (!!!) secrets = {'cephx_secret': prepare_utils.create_key()} cluster_fsid = conf.ceph.get('global', 'fsid') osd_fsid = args.osd_fsid or system.generate_uuid() # allow re-using an id, in case a prepare failed osd_id = args.osd_id or prepare_utils.create_id( osd_fsid, json.dumps(secrets)) if args.filestore: if not args.journal: raise RuntimeError( '--journal is required when using --filestore') data_lv = self.get_lv(args.data) if not data_lv: raise RuntimeError('no data logical volume found with: %s' % args.data) tags = { 'ceph.osd_fsid': osd_fsid, 'ceph.osd_id': osd_id, 'ceph.cluster_fsid': cluster_fsid, 'ceph.cluster_name': conf.cluster, 'ceph.data_device': data_lv.lv_path, 'ceph.data_uuid': data_lv.lv_uuid, } journal_device, journal_uuid, tags = self.setup_device( 'journal', args.journal, tags) tags['ceph.type'] = 'data' data_lv.set_tags(tags) prepare_filestore( data_lv.lv_path, journal_device, secrets, id_=osd_id, fsid=osd_fsid, ) elif args.bluestore: block_lv = self.get_lv(args.data) if not block_lv: if disk.is_partition(args.data) or disk.is_device(args.data): # we must create a vg, and then a single lv vg_name = "ceph-%s" % cluster_fsid if api.get_vg(vg_name=vg_name): # means we already have a group for this, make a different one # XXX this could end up being annoying for an operator, maybe? vg_name = "ceph-%s" % str(uuid.uuid4()) api.create_vg(vg_name, args.data) block_name = "osd-block-%s" % osd_fsid block_lv = api.create_lv( block_name, vg_name, # the volume group tags={'ceph.type': 'block'}) else: error = [ 'Cannot use device (%s) for bluestore. ' % args.data, 'A vg/lv path or an existing device is needed' ] raise RuntimeError(' '.join(error)) tags = { 'ceph.osd_fsid': osd_fsid, 'ceph.osd_id': osd_id, 'ceph.cluster_fsid': cluster_fsid, 'ceph.cluster_name': conf.cluster, 'ceph.block_device': block_lv.lv_path, 'ceph.block_uuid': block_lv.lv_uuid, } wal_device, wal_uuid, tags = self.setup_device( 'wal', args.block_wal, tags) db_device, db_uuid, tags = self.setup_device( 'db', args.block_db, tags) tags['ceph.type'] = 'block' block_lv.set_tags(tags) prepare_bluestore( block_lv.lv_path, wal_device, db_device, secrets, id_=osd_id, fsid=osd_fsid, )