From c9e5562dfddf190e124a4169e7cc9193fd82cd3d Mon Sep 17 00:00:00 2001 From: Alex O'Rourke Date: Mon, 1 Feb 2016 13:58:33 -0800 Subject: [PATCH] 3PAR: Create consistency group from source CG Supports creating a consistency group from a source consistency group in the HPE 3PAR driver. This makes use of temporary snapshots, which are not managed by Cinder. Upon volume/CG deleteion, these temp snapshots will automatically be cleaned up. Change-Id: I033c2c4d45689d02dec96a0e58794629053efbc4 Implements: blueprint hpe-3par-create-cg-from-source DocImpact --- cinder/tests/unit/test_hpe3par.py | 88 ++++++++++++++++--- cinder/volume/drivers/hpe/hpe_3par_common.py | 44 ++++++---- ...te-cg-from-source-cg-5634dcf9feb813f6.yaml | 4 + 3 files changed, 111 insertions(+), 25 deletions(-) create mode 100644 releasenotes/notes/3par-create-cg-from-source-cg-5634dcf9feb813f6.yaml diff --git a/cinder/tests/unit/test_hpe3par.py b/cinder/tests/unit/test_hpe3par.py index 677e25736..4cc2c1d1e 100644 --- a/cinder/tests/unit/test_hpe3par.py +++ b/cinder/tests/unit/test_hpe3par.py @@ -91,11 +91,13 @@ class Comment(object): class HPE3PARBaseDriver(object): VOLUME_ID = 'd03338a9-9115-48a3-8dfc-35cdfcdc15a7' + SRC_CG_VOLUME_ID = 'bd21d11b-c765-4c68-896c-6b07f63cfcb6' CLONE_ID = 'd03338a9-9115-48a3-8dfc-000000000000' VOLUME_TYPE_ID_REPLICATED = 'be9181f1-4040-46f2-8298-e7532f2bf9db' VOLUME_TYPE_ID_DEDUP = 'd03338a9-9115-48a3-8dfc-11111111111' VOLUME_TYPE_ID_FLASH_CACHE = 'd03338a9-9115-48a3-8dfc-22222222222' VOLUME_NAME = 'volume-' + VOLUME_ID + SRC_CG_VOLUME_NAME = 'volume-' + SRC_CG_VOLUME_ID VOLUME_NAME_3PAR = 'osv-0DM4qZEVSKON-DXN-NwVpw' SNAPSHOT_ID = '2f823bdc-e36e-4dc8-bd15-de1c7a28ff31' SNAPSHOT_NAME = 'snapshot-2f823bdc-e36e-4dc8-bd15-de1c7a28ff31' @@ -104,6 +106,8 @@ class HPE3PARBaseDriver(object): RCG_3PAR_NAME = 'rcg-0DM4qZEVSKON-DXN-N' CONSIS_GROUP_ID = '6044fedf-c889-4752-900f-2039d247a5df' CONSIS_GROUP_NAME = 'vvs-YET.38iJR1KQDyA50kel3w' + SRC_CONSIS_GROUP_ID = '7d7dfa02-ac6e-48cb-96af-8a0cd3008d47' + SRC_CONSIS_GROUP_NAME = 'vvs-fX36AqxuSMuWr4oM0wCNRw' CGSNAPSHOT_ID = 'e91c5ed5-daee-4e84-8724-1c9e31e7a1f2' CGSNAPSHOT_BASE_NAME = 'oss-6Rxe1druToSHJByeMeeh8g' CLIENT_ID = "12345" @@ -148,6 +152,14 @@ class HPE3PARBaseDriver(object): 'volume_type': None, 'volume_type_id': None} + volume_src_cg = {'name': SRC_CG_VOLUME_NAME, + 'id': SRC_CG_VOLUME_ID, + 'display_name': 'Foo Volume', + 'size': 2, + 'host': FAKE_CINDER_HOST, + 'volume_type': None, + 'volume_type_id': None} + volume_replicated = {'name': VOLUME_NAME, 'id': VOLUME_ID, 'display_name': 'Foo Volume', @@ -585,18 +597,20 @@ class HPE3PARBaseDriver(object): mock.call.logout()] class fake_consistencygroup_object(object): - volume_type_id = '49fa96b5-828e-4653-b622-873a1b7e6f1c' - name = 'cg_name' - cgsnapshot_id = None - host = 'fakehost@foo#OpenStackCPG' - id = '6044fedf-c889-4752-900f-2039d247a5df' - description = 'consistency group' + def __init__(self, cg_id='6044fedf-c889-4752-900f-2039d247a5df'): + self.id = cg_id + self.volume_type_id = '49fa96b5-828e-4653-b622-873a1b7e6f1c' + self.name = 'cg_name' + self.cgsnapshot_id = None + self.host = 'fakehost@foo#OpenStackCPG' + self.description = 'consistency group' class fake_cgsnapshot_object(object): - consistencygroup_id = '6044fedf-c889-4752-900f-2039d247a5df' - description = 'cgsnapshot' - id = 'e91c5ed5-daee-4e84-8724-1c9e31e7a1f2' - readOnly = False + def __init__(self, cgsnap_id='e91c5ed5-daee-4e84-8724-1c9e31e7a1f2'): + self.id = cgsnap_id + self.consistencygroup_id = '6044fedf-c889-4752-900f-2039d247a5df' + self.description = 'cgsnapshot' + self.readOnly = False def setup_configuration(self): configuration = mock.MagicMock() @@ -3926,6 +3940,60 @@ class HPE3PARBaseDriver(object): expected + self.standard_logout) + def test_create_consistency_group_from_src_cg(self): + mock_client = self.setup_driver() + mock_client.getStorageSystemInfo.return_value = {'id': self.CLIENT_ID} + volume = self.volume + source_volume = self.volume_src_cg + + cgsnap_optional = ( + {'expirationHours': 1}) + + cg_comment = Comment({ + 'display_name': 'cg_name', + 'consistency_group_id': self.CONSIS_GROUP_ID, + 'description': 'consistency group'}) + + with mock.patch.object(hpecommon.HPE3PARCommon, + '_create_client') as mock_create_client: + mock_create_client.return_value = mock_client + mock_client.getCPG.return_value = {'domain': None} + group = self.fake_consistencygroup_object() + source_group = self.fake_consistencygroup_object( + cg_id=self.SRC_CONSIS_GROUP_ID) + + expected = [ + mock.call.getCPG(HPE3PAR_CPG), + mock.call.createVolumeSet( + self.CONSIS_GROUP_NAME, + domain=None, + comment=cg_comment), + mock.call.createSnapshotOfVolumeSet( + mock.ANY, + self.SRC_CONSIS_GROUP_NAME, + optional=cgsnap_optional), + mock.call.copyVolume( + mock.ANY, + self.VOLUME_NAME_3PAR, + HPE3PAR_CPG, + {'snapCPG': HPE3PAR_CPG, 'online': True}), + mock.call.addVolumeToVolumeSet( + self.CONSIS_GROUP_NAME, + self.VOLUME_NAME_3PAR)] + + # Create a consistency group from a source consistency group. + self.driver.create_consistencygroup_from_src( + context.get_admin_context(), group, + [volume], source_cg=source_group, + source_vols=[source_volume]) + + mock_client.assert_has_calls( + self.get_id_login + + self.standard_logout + + self.standard_login + + expected + + self.standard_logout) + def test_delete_consistency_group(self): mock_client = self.setup_driver() mock_client.getStorageSystemInfo.return_value = {'id': self.CLIENT_ID} diff --git a/cinder/volume/drivers/hpe/hpe_3par_common.py b/cinder/volume/drivers/hpe/hpe_3par_common.py index 0ee1ec77f..4d0d060cf 100644 --- a/cinder/volume/drivers/hpe/hpe_3par_common.py +++ b/cinder/volume/drivers/hpe/hpe_3par_common.py @@ -225,10 +225,11 @@ class HPE3PARCommon(object): 3.0.10 - Added additional volumes checks to the manage snapshot API 3.0.11 - Fix the image cache capability bug #1491088 3.0.12 - Remove client version checks for replication + 3.0.13 - Support creating a cg from a source cg """ - VERSION = "3.0.12" + VERSION = "3.0.13" stats = {} @@ -512,22 +513,35 @@ class HPE3PARCommon(object): cgsnapshot=None, snapshots=None, source_cg=None, source_vols=None): + self.create_consistencygroup(context, group) + vvs_name = self._get_3par_vvs_name(group.id) if cgsnapshot and snapshots: - self.create_consistencygroup(context, group) - vvs_name = self._get_3par_vvs_name(group.id) cgsnap_name = self._get_3par_snap_name(cgsnapshot.id) - for i, (volume, snapshot) in enumerate(zip(volumes, snapshots)): - snap_name = cgsnap_name + "-" + six.text_type(i) - volume_name = self._get_3par_vol_name(volume['id']) - type_info = self.get_volume_settings_from_type(volume) - cpg = type_info['cpg'] - optional = {'online': True, 'snapCPG': cpg} - self.client.copyVolume(snap_name, volume_name, cpg, optional) - self.client.addVolumeToVolumeSet(vvs_name, volume_name) - else: - msg = _("create_consistencygroup_from_src only supports a" - " cgsnapshot source, other sources cannot be used.") - raise exception.InvalidInput(reason=msg) + snap_base = cgsnap_name + elif source_cg and source_vols: + cg_id = source_cg.id + # Create a brand new uuid for the temp snap. + snap_uuid = uuid.uuid4().hex + + # Create a temporary snapshot of the volume set in order to + # perform an online copy. These temp snapshots will be deleted + # when the source consistency group is deleted. + temp_snap = self._get_3par_snap_name(snap_uuid, temp_snap=True) + snap_shot_name = temp_snap + "-@count@" + copy_of_name = self._get_3par_vvs_name(cg_id) + optional = {'expirationHours': 1} + self.client.createSnapshotOfVolumeSet(snap_shot_name, copy_of_name, + optional=optional) + snap_base = temp_snap + + for i, volume in enumerate(volumes): + snap_name = snap_base + "-" + six.text_type(i) + volume_name = self._get_3par_vol_name(volume['id']) + type_info = self.get_volume_settings_from_type(volume) + cpg = type_info['cpg'] + optional = {'online': True, 'snapCPG': cpg} + self.client.copyVolume(snap_name, volume_name, cpg, optional) + self.client.addVolumeToVolumeSet(vvs_name, volume_name) return None, None diff --git a/releasenotes/notes/3par-create-cg-from-source-cg-5634dcf9feb813f6.yaml b/releasenotes/notes/3par-create-cg-from-source-cg-5634dcf9feb813f6.yaml new file mode 100644 index 000000000..ff85b2fc2 --- /dev/null +++ b/releasenotes/notes/3par-create-cg-from-source-cg-5634dcf9feb813f6.yaml @@ -0,0 +1,4 @@ +--- +features: + - Added support for creating a consistency group from a source consistency group + in the HPE 3PAR driver. -- 2.45.2