124 lines
4.9 KiB
Python
124 lines
4.9 KiB
Python
# Copyright 2020 Red Hat, Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from tempest.common import utils
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from tempest.lib import decorators
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from cinder_tempest_plugin.scenario import manager
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class SnapshotDataIntegrityTests(manager.ScenarioTest):
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def setUp(self):
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super(SnapshotDataIntegrityTests, self).setUp()
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self.validation_resources = self.get_test_validation_resources(
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self.os_primary)
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# NOTE(danms): If validation is enabled, we will have a keypair to use,
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# otherwise we need to create our own.
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if 'keypair' in self.validation_resources:
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self.keypair = self.validation_resources['keypair']
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else:
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self.keypair = self.create_keypair()
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self.security_group = self.create_security_group()
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@decorators.idempotent_id('ff10644e-5a70-4a9f-9801-8204bb81fb61')
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@utils.services('compute', 'volume', 'image', 'network')
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def test_snapshot_data_integrity(self):
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"""This test checks the data integrity after creating and restoring
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snapshots. The procedure is as follows:
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1) Create an instance with ephemeral disk
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2) Create a volume, attach it to the instance and create a filesystem
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on it and mount it
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3) Create a file and write data into it, Unmount it
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4) create snapshot
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5) repeat 3 and 4 two more times (simply creating 3 snapshots)
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Now create volume from the snapshots one by one, attach it to the
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instance and check the number of files and file content at each
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point when snapshot was created.
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"""
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# Create an instance
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server = self.create_server(
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key_name=self.keypair['name'],
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validatable=True,
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validation_resources=self.validation_resources,
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wait_until='SSHABLE',
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security_groups=[{'name': self.security_group['name']}])
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# Create an empty volume
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volume = self.create_volume()
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instance_ip = self.get_server_ip(server)
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# Attach volume to instance and find it's device name (eg: /dev/vdb)
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volume_device_name, __ = self._attach_and_get_volume_device_name(
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server, volume, instance_ip, self.keypair['private_key'])
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# Create filesystem on the volume
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self._make_fs(instance_ip, self.keypair['private_key'], server,
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volume_device_name)
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# Write data to volume
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file1_md5 = self.create_md5_new_file(
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instance_ip, dev_name=volume_device_name, filename="file1",
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private_key=self.keypair['private_key'],
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server=instance_ip)
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# Create first snapshot
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snapshot1 = self.create_volume_snapshot(volume['id'], force=True)
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# Write data to volume
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file2_md5 = self.create_md5_new_file(
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instance_ip, dev_name=volume_device_name, filename="file2",
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private_key=self.keypair['private_key'],
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server=instance_ip)
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# Create second snapshot
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snapshot2 = self.create_volume_snapshot(volume['id'], force=True)
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# Write data to volume
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file3_md5 = self.create_md5_new_file(
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instance_ip, dev_name=volume_device_name, filename="file3",
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private_key=self.keypair['private_key'],
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server=instance_ip)
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# Create third snapshot
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snapshot3 = self.create_volume_snapshot(volume['id'], force=True)
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# Detach the volume
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self.nova_volume_detach(server, volume)
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snap_map = {1: snapshot1, 2: snapshot2, 3: snapshot3}
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file_map = {1: file1_md5, 2: file2_md5, 3: file3_md5}
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# Loop over 3 times to check the data integrity of all 3 snapshots
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for i in range(1, 4):
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# Create volume from snapshot, attach it to instance and check file
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# and contents for snap
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volume_snap = self.create_volume(snapshot_id=snap_map[i]['id'])
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volume_device_name, __ = self._attach_and_get_volume_device_name(
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server, volume_snap, instance_ip, self.keypair['private_key'])
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count_snap, md5_file = self.get_md5_from_file(
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server, instance_ip, 'file' + str(i),
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dev_name=volume_device_name)
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# Detach the volume
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self.nova_volume_detach(server, volume_snap)
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self.assertEqual(count_snap, i)
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self.assertEqual(file_map[i], md5_file)
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