tempest/api/compute/admin/test_volume_swap.py

#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from tempest.api.compute import base
from tempest.common import waiters
from tempest import config
from tempest.lib import decorators
from tempest import test

CONF = config.CONF


class TestVolumeSwap(base.BaseV2ComputeAdminTest):
    """The test suite for swapping of volume with admin user.

    The following is the scenario outline:
    1. Create a volume "volume1" with non-admin.
    2. Create a volume "volume2" with non-admin.
    3. Boot an instance "instance1" with non-admin.
    4. Attach "volume1" to "instance1" with non-admin.
    5. Swap volume from "volume1" to "volume2" as admin.
    6. Check the swap volume is successful and "volume2"
       is attached to "instance1" and "volume1" is in available state.
    7. Swap volume from "volume2" to "volume1" as admin.
    8. Check the swap volume is successful and "volume1"
       is attached to "instance1" and "volume2" is in available state.
    """

    @classmethod
    def skip_checks(cls):
        super(TestVolumeSwap, cls).skip_checks()
        if not CONF.compute_feature_enabled.swap_volume:
            raise cls.skipException("Swapping volumes is not supported.")

    @decorators.idempotent_id('1769f00d-a693-4d67-a631-6a3496773813')
    @test.services('volume')
    def test_volume_swap(self):
        # Create two volumes.
        # NOTE(gmann): Volumes are created before server creation so that
        # volumes cleanup can happen successfully irrespective of which volume
        # is attached to server.
        volume1 = self.create_volume()
        volume2 = self.create_volume()
        # Boot server
        server = self.create_test_server(wait_until='ACTIVE')
        # Attach "volume1" to server
        self.attach_volume(server, volume1)
        # Swap volume from "volume1" to "volume2"
        self.admin_servers_client.update_attached_volume(
            server['id'], volume1['id'], volumeId=volume2['id'])
        waiters.wait_for_volume_resource_status(self.volumes_client,
                                                volume1['id'], 'available')
        waiters.wait_for_volume_resource_status(self.volumes_client,
                                                volume2['id'], 'in-use')
        # Verify "volume2" is attached to the server
        vol_attachments = self.servers_client.list_volume_attachments(
            server['id'])['volumeAttachments']
        self.assertEqual(1, len(vol_attachments))
        self.assertIn(volume2['id'], vol_attachments[0]['volumeId'])

        # Swap volume from "volume2" to "volume1"
        self.admin_servers_client.update_attached_volume(
            server['id'], volume2['id'], volumeId=volume1['id'])
        waiters.wait_for_volume_resource_status(self.volumes_client,
                                                volume2['id'], 'available')
        waiters.wait_for_volume_resource_status(self.volumes_client,
                                                volume1['id'], 'in-use')
        # Verify "volume1" is attached to the server
        vol_attachments = self.servers_client.list_volume_attachments(
            server['id'])['volumeAttachments']
        self.assertEqual(1, len(vol_attachments))
        self.assertIn(volume1['id'], vol_attachments[0]['volumeId'])