Merge "Add new test "RebuildInstanceWithVolume""

tempest/scenario/test_rebuild_instance_with_volume.py

@@ -0,0 +1,83 @@
+# Copyright 2016 Mirantis Inc.
+# All Rights Reserved.
+#
+#    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 import config
+from tempest.scenario import manager
+from tempest import test
+
+CONF = config.CONF
+
+
+class TestRebuildInstanceWithVolume(manager.ScenarioTest):
+    """Verifying functionality of rebuilding instance with attached volume
+
+    The following is the scenario outline:
+    1. Boot an instance
+    2. Create a volume
+    3. Attach the volume to the instance
+    4. Create a file with timestamp on the volume
+    5. Rebuild the instance
+    6. Check existence of the file which was created at step #4
+    7. Detach the volume
+    """
+
+    @test.idempotent_id('36c3d492-f5bd-11e4-b9b2-1697f925ec7b')
+    @test.services('compute', 'volume', 'image', 'network')
+    def test_rebuild_instance_with_volume(self):
+        # create key pair and security group
+        keypair = self.create_keypair()
+        security_group = self._create_security_group()
+
+        # boot an instance
+        server = self.create_server(
+            image_id=CONF.compute.image_ref,
+            key_name=keypair['name'],
+            security_groups=[{'name': security_group['name']}],
+            wait_until='ACTIVE')
+
+        # get instance IP
+        server_ip = self.get_server_ip(server)
+
+        # create volume, attach it and create timestamp file on it
+        volume = self.create_volume()
+        attached_volume = self.nova_volume_attach(server, volume)
+        timestamp = self.create_timestamp(
+            server_ip,
+            dev_name=CONF.compute.volume_device_name,
+            private_key=keypair['private_key'])
+
+        # NOTE: for rebuild we use the same image,
+        # so we should verify that VM was actually rebuilt
+        ssh_client = self.get_remote_client(server_ip,
+                                            private_key=keypair['private_key'])
+        cmd_addstamp = 'sudo sh -c "echo \'#check_rebuild\' >> /etc/fstab"'
+        fstab = ssh_client.exec_command('%s; cat /etc/fstab' % cmd_addstamp)
+
+        # rebuild instance
+        self.rebuild_server(server['id'])
+
+        # verify that instance was actually rebuilt
+        actual_fstab = ssh_client.exec_command('cat /etc/fstab')
+        self.assertNotEqual(fstab, actual_fstab, 'Server was not rebuilt')
+
+        # check existence of the timestamp file in the volume
+        timestamp2 = self.get_timestamp(
+            server_ip,
+            dev_name=CONF.compute.volume_device_name,
+            private_key=keypair['private_key'])
+        self.assertEqual(timestamp, timestamp2)
+
+        # detach volume
+        self.nova_volume_detach(server, attached_volume)