| # vim: tabstop=4 shiftwidth=4 softtabstop=4 |
| |
| # 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.common.utils.data_utils import rand_name |
| from tempest.scenario import manager |
| from tempest.test import services |
| |
| |
| class TestVolumeBootPattern(manager.OfficialClientTest): |
| |
| """ |
| This test case attempts to reproduce the following steps: |
| |
| * Create in Cinder some bootable volume importing a Glance image |
| * Boot an instance from the bootable volume |
| * Write content to the volume |
| * Delete an instance and Boot a new instance from the volume |
| * Check written content in the instance |
| * Create a volume snapshot while the instance is running |
| * Boot an additional instance from the new snapshot based volume |
| * Check written content in the instance booted from snapshot |
| """ |
| |
| def _create_volume_from_image(self): |
| img_uuid = self.config.compute.image_ref |
| vol_name = rand_name('volume-origin') |
| return self.create_volume(name=vol_name, imageRef=img_uuid) |
| |
| def _boot_instance_from_volume(self, vol_id, keypair): |
| # NOTE(gfidente): the syntax for block_device_mapping is |
| # dev_name=id:type:size:delete_on_terminate |
| # where type needs to be "snap" if the server is booted |
| # from a snapshot, size instead can be safely left empty |
| bd_map = { |
| 'vda': vol_id + ':::0' |
| } |
| create_kwargs = { |
| 'block_device_mapping': bd_map, |
| 'key_name': keypair.name |
| } |
| return self.create_server(create_kwargs=create_kwargs) |
| |
| def _create_snapshot_from_volume(self, vol_id): |
| volume_snapshots = self.volume_client.volume_snapshots |
| snap_name = rand_name('snapshot') |
| snap = volume_snapshots.create(volume_id=vol_id, |
| force=True, |
| display_name=snap_name) |
| self.set_resource(snap.id, snap) |
| self.status_timeout(volume_snapshots, |
| snap.id, |
| 'available') |
| return snap |
| |
| def _create_volume_from_snapshot(self, snap_id): |
| vol_name = rand_name('volume') |
| return self.create_volume(name=vol_name, snapshot_id=snap_id) |
| |
| def _stop_instances(self, instances): |
| # NOTE(gfidente): two loops so we do not wait for the status twice |
| for i in instances: |
| self.compute_client.servers.stop(i) |
| for i in instances: |
| self.status_timeout(self.compute_client.servers, |
| i.id, |
| 'SHUTOFF') |
| |
| def _detach_volumes(self, volumes): |
| # NOTE(gfidente): two loops so we do not wait for the status twice |
| for v in volumes: |
| self.volume_client.volumes.detach(v) |
| for v in volumes: |
| self.status_timeout(self.volume_client.volumes, |
| v.id, |
| 'available') |
| |
| def _ssh_to_server(self, server, keypair): |
| if self.config.compute.use_floatingip_for_ssh: |
| floating_ip = self.compute_client.floating_ips.create() |
| fip_name = rand_name('scenario-fip') |
| self.set_resource(fip_name, floating_ip) |
| server.add_floating_ip(floating_ip) |
| ip = floating_ip.ip |
| else: |
| network_name_for_ssh = self.config.compute.network_for_ssh |
| ip = server.networks[network_name_for_ssh][0] |
| |
| client = self.get_remote_client(ip, |
| private_key=keypair.private_key) |
| return client.ssh_client |
| |
| def _get_content(self, ssh_client): |
| return ssh_client.exec_command('cat /tmp/text') |
| |
| def _write_text(self, ssh_client): |
| text = rand_name('text-') |
| ssh_client.exec_command('echo "%s" > /tmp/text; sync' % (text)) |
| |
| return self._get_content(ssh_client) |
| |
| def _delete_server(self, server): |
| self.compute_client.servers.delete(server) |
| self.delete_timeout(self.compute_client.servers, server.id) |
| |
| def _check_content_of_written_file(self, ssh_client, expected): |
| actual = self._get_content(ssh_client) |
| self.assertEqual(expected, actual) |
| |
| @services('compute', 'volume', 'image') |
| def test_volume_boot_pattern(self): |
| keypair = self.create_keypair() |
| self.create_loginable_secgroup_rule() |
| |
| # create an instance from volume |
| volume_origin = self._create_volume_from_image() |
| instance_1st = self._boot_instance_from_volume(volume_origin.id, |
| keypair) |
| |
| # write content to volume on instance |
| ssh_client_for_instance_1st = self._ssh_to_server(instance_1st, |
| keypair) |
| text = self._write_text(ssh_client_for_instance_1st) |
| |
| # delete instance |
| self._delete_server(instance_1st) |
| |
| # create a 2nd instance from volume |
| instance_2nd = self._boot_instance_from_volume(volume_origin.id, |
| keypair) |
| |
| # check the content of written file |
| ssh_client_for_instance_2nd = self._ssh_to_server(instance_2nd, |
| keypair) |
| self._check_content_of_written_file(ssh_client_for_instance_2nd, text) |
| |
| # snapshot a volume |
| snapshot = self._create_snapshot_from_volume(volume_origin.id) |
| |
| # create a 3rd instance from snapshot |
| volume = self._create_volume_from_snapshot(snapshot.id) |
| instance_from_snapshot = self._boot_instance_from_volume(volume.id, |
| keypair) |
| |
| # check the content of written file |
| ssh_client = self._ssh_to_server(instance_from_snapshot, keypair) |
| self._check_content_of_written_file(ssh_client, text) |
| |
| # NOTE(gfidente): ensure resources are in clean state for |
| # deletion operations to succeed |
| self._stop_instances([instance_2nd, instance_from_snapshot]) |
| self._detach_volumes([volume_origin, volume]) |