| Giulio Fidente | b3c3cb9 | 2013-08-06 12:19:10 +0200 | [diff] [blame] | 1 | # vim: tabstop=4 shiftwidth=4 softtabstop=4 |
| 2 | |
| 3 | # Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 4 | # not use this file except in compliance with the License. You may obtain |
| 5 | # a copy of the License at |
| 6 | # |
| 7 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | # |
| 9 | # Unless required by applicable law or agreed to in writing, software |
| 10 | # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 11 | # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 12 | # License for the specific language governing permissions and limitations |
| 13 | # under the License. |
| 14 | |
| 15 | from tempest.openstack.common import log as logging |
| 16 | |
| 17 | from tempest.common.utils.data_utils import rand_name |
| 18 | from tempest.scenario import manager |
| 19 | |
| 20 | LOG = logging.getLogger(__name__) |
| 21 | |
| 22 | |
| 23 | class TestVolumeSnapshotPattern(manager.OfficialClientTest): |
| 24 | |
| 25 | """ |
| 26 | This test case attempts to reproduce the following steps: |
| 27 | |
| 28 | * Create in Cinder some bootable volume importing a Glance image |
| 29 | * Boot an instance from the bootable volume |
| 30 | * Create a volume snapshot while the instance is running |
| 31 | * Boot an additional instance from the new snapshot based volume |
| 32 | """ |
| 33 | |
| 34 | def _create_volume_from_image(self): |
| 35 | img_uuid = self.config.compute.image_ref |
| 36 | vol_name = rand_name('volume-origin') |
| 37 | vol = self.volume_client.volumes.create(size=1, |
| 38 | display_name=vol_name, |
| 39 | imageRef=img_uuid) |
| 40 | self.set_resource(vol.id, vol) |
| 41 | self.status_timeout(self.volume_client.volumes, |
| 42 | vol.id, |
| 43 | 'available') |
| 44 | return vol |
| 45 | |
| 46 | def _boot_instance_from_volume(self, vol_id): |
| 47 | # NOTE(gfidente): the img_uuid here is only needed because |
| 48 | # the novaclient requires it to be passed as arg |
| 49 | img_uuid = self.config.compute.image_ref |
| 50 | i_name = rand_name('instance') |
| 51 | flavor_id = self.config.compute.flavor_ref |
| 52 | # NOTE(gfidente): the syntax for block_device_mapping is |
| 53 | # dev_name=id:type:size:delete_on_terminate |
| 54 | # where type needs to be "snap" if the server is booted |
| 55 | # from a snapshot, size instead can be safely left empty |
| 56 | bd_map = { |
| 57 | 'vda': vol_id + ':::0' |
| 58 | } |
| 59 | create_kwargs = { |
| 60 | 'block_device_mapping': bd_map |
| 61 | } |
| 62 | i = self.compute_client.servers.create(name=i_name, |
| 63 | image=img_uuid, |
| 64 | flavor=flavor_id, |
| 65 | **create_kwargs) |
| 66 | self.set_resource(i.id, i) |
| 67 | self.status_timeout(self.compute_client.servers, |
| 68 | i.id, |
| 69 | 'ACTIVE') |
| 70 | return i |
| 71 | |
| 72 | def _create_snapshot_from_volume(self, vol_id): |
| 73 | volume_snapshots = self.volume_client.volume_snapshots |
| 74 | snap_name = rand_name('snapshot') |
| 75 | snap = volume_snapshots.create(volume_id=vol_id, |
| 76 | force=True, |
| 77 | display_name=snap_name) |
| 78 | self.set_resource(snap.id, snap) |
| 79 | self.status_timeout(volume_snapshots, |
| 80 | snap.id, |
| 81 | 'available') |
| 82 | return snap |
| 83 | |
| 84 | def _create_volume_from_snapshot(self, snap_id): |
| 85 | vol_name = rand_name('volume') |
| 86 | vol = self.volume_client.volumes.create(size=1, |
| 87 | display_name=vol_name, |
| 88 | snapshot_id=snap_id) |
| 89 | self.set_resource(vol.id, vol) |
| 90 | self.status_timeout(self.volume_client.volumes, |
| 91 | vol.id, |
| 92 | 'available') |
| 93 | return vol |
| 94 | |
| 95 | def _stop_instances(self, instances): |
| 96 | # NOTE(gfidente): two loops so we do not wait for the status twice |
| 97 | for i in instances: |
| 98 | self.compute_client.servers.stop(i) |
| 99 | for i in instances: |
| 100 | self.status_timeout(self.compute_client.servers, |
| 101 | i.id, |
| 102 | 'SHUTOFF') |
| 103 | |
| 104 | def _detach_volumes(self, volumes): |
| 105 | # NOTE(gfidente): two loops so we do not wait for the status twice |
| 106 | for v in volumes: |
| 107 | self.volume_client.volumes.detach(v) |
| 108 | for v in volumes: |
| 109 | self.status_timeout(self.volume_client.volumes, |
| 110 | v.id, |
| 111 | 'available') |
| 112 | |
| 113 | def test_volume_snapshot_pattern(self): |
| 114 | volume_origin = self._create_volume_from_image() |
| 115 | i_origin = self._boot_instance_from_volume(volume_origin.id) |
| 116 | snapshot = self._create_snapshot_from_volume(volume_origin.id) |
| 117 | volume = self._create_volume_from_snapshot(snapshot.id) |
| 118 | i = self._boot_instance_from_volume(volume.id) |
| 119 | # NOTE(gfidente): ensure resources are in clean state for |
| 120 | # deletion operations to succeed |
| 121 | self._stop_instances([i_origin, i]) |
| 122 | self._detach_volumes([volume_origin, volume]) |