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How to use _boot_from_multiattach_volume method in tempest

Best Python code snippet using tempest_python

test_attach_volume.py

Source:test_attach_volume.py

...327            attachment = attachments[server['id']]328            self.assertDictEqual(attachment, vol_attachments[0])329            # Detach the volume from this server.330            self._detach_multiattach_volume(volume['id'], server['id'])331    def _boot_from_multiattach_volume(self):332        """Boots a server from a multiattach volume.333        The volume will not be deleted when the server is deleted.334        :returns: 2-item tuple of (server, volume)335        """336        volume = self._create_multiattach_volume(bootable=True)337        # Now create a server from the bootable volume.338        bdm = [{339            'uuid': volume['id'],340            'source_type': 'volume',341            'destination_type': 'volume',342            'boot_index': 0,343            'delete_on_termination': False}]344        server = self.create_test_server(345            image_id='', block_device_mapping_v2=bdm, wait_until='ACTIVE')346        # Assert the volume is attached to the server.347        attachments = self.servers_client.list_volume_attachments(348            server['id'])['volumeAttachments']349        self.assertEqual(1, len(attachments))350        self.assertEqual(volume['id'], attachments[0]['volumeId'])351        return server, volume352    @decorators.idempotent_id('65e33aa2-185b-44c8-b22e-e524973ed625')353    def test_boot_from_multiattach_volume(self):354        """Simple test to boot an instance from a multiattach volume."""355        self._boot_from_multiattach_volume()356    @utils.services('image')357    @decorators.idempotent_id('885ac48a-2d7a-40c5-ae8b-1993882d724c')358    def test_snapshot_volume_backed_multiattach(self):359        """Boots a server from a multiattach volume and snapshots the server.360        Creating the snapshot of the server will also create a snapshot of361        the volume.362        """363        server, volume = self._boot_from_multiattach_volume()364        # Create a snapshot of the server (and volume implicitly).365        self.create_image_from_server(366            server['id'], name='multiattach-snapshot',367            wait_until='active', wait_for_server=True)368        # TODO(mriedem): Make sure the volume snapshot exists. This requires369        # adding the volume snapshots client to BaseV2ComputeTest.370        # Delete the server, wait for it to be gone, and make sure the volume371        # still exists.372        self.servers_client.delete_server(server['id'])373        waiters.wait_for_server_termination(self.servers_client, server['id'])374        # Delete the volume and cascade the delete of the volume snapshot.375        self.volumes_client.delete_volume(volume['id'], cascade=True)376        # Now we have to wait for the volume to be gone otherwise the normal377        # teardown will fail since it will race with our call and the snapshot...

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