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How to use _create_volume_types method in tempest

Best Python code snippet using tempest_python

test_volume_migrate_attached.py

Source:test_volume_migrate_attached.py

...51        return self.create_server(image_id='',52                                  key_name=key_name,53                                  security_groups=security_groups,54                                  block_device_mapping=block_device_mapping)55    def _create_volume_types(self):56        backend_names = CONF.volume.backend_names57        backend_source = backend_names[0]58        backend_dest = backend_names[1]59        source_body = self.create_volume_type(backend_name=backend_source)60        dest_body = self.create_volume_type(backend_name=backend_dest)61        LOG.info("Created Volume types: %(src)s -> %(src_backend)s, %(dst)s "62                 "-> %(dst_backend)s", {'src': source_body['name'],63                                        'src_backend': backend_source,64                                        'dst': dest_body['name'],65                                        'dst_backend': backend_dest})66        return source_body['name'], dest_body['name']67    def _volume_retype_with_migration(self, volume_id, new_volume_type):68        migration_policy = 'on-demand'69        self.volumes_client.retype_volume(70            volume_id, new_type=new_volume_type,71            migration_policy=migration_policy)72        waiters.wait_for_volume_retype(self.volumes_client,73                                       volume_id, new_volume_type)74    @decorators.idempotent_id('deadd2c2-beef-4dce-98be-f86765ff311b')75    @test.services('compute', 'volume')76    def test_volume_migrate_attached(self):77        LOG.info("Creating keypair and security group")78        keypair = self.create_keypair()79        security_group = self._create_security_group()80        # create volume types81        LOG.info("Creating Volume types")82        source_type, dest_type = self._create_volume_types()83        # create an instance from volume84        LOG.info("Booting instance from volume")85        volume_origin = self.create_volume(imageRef=CONF.compute.image_ref,86                                           volume_type=source_type)87        instance = self._boot_instance_from_volume(volume_origin['id'],88                                                   keypair, security_group)89        # write content to volume on instance90        LOG.info("Setting timestamp in instance %s", instance['id'])91        ip_instance = self.get_server_ip(instance)92        timestamp = self.create_timestamp(ip_instance,93                                          private_key=keypair['private_key'])94        # retype volume with migration from backend #1 to backend #295        LOG.info("Retyping Volume %s to new type %s", volume_origin['id'],96                 dest_type)...

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