103 lines
3.8 KiB
Python
103 lines
3.8 KiB
Python
# Copyright 2013 NEC Corporation
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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 import config
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from tempest.openstack.common import log
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from tempest.scenario import manager
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from tempest import test
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CONF = config.CONF
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LOG = log.getLogger(__name__)
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class TestSnapshotPattern(manager.OfficialClientTest):
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"""
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This test is for snapshotting an instance and booting with it.
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The following is the scenario outline:
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* boot a instance and create a timestamp file in it
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* snapshot the instance
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* boot a second instance from the snapshot
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* check the existence of the timestamp file in the second instance
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"""
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def _boot_image(self, image_id):
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security_groups = [self.security_group.name]
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create_kwargs = {
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'key_name': self.keypair.name,
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'security_groups': security_groups
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}
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return self.create_server(image=image_id, create_kwargs=create_kwargs)
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def _add_keypair(self):
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self.keypair = self.create_keypair()
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def _ssh_to_server(self, server_or_ip):
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try:
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return self.get_remote_client(server_or_ip)
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except Exception:
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LOG.exception('Initializing SSH connection failed')
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self._log_console_output()
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raise
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def _write_timestamp(self, server_or_ip):
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ssh_client = self._ssh_to_server(server_or_ip)
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ssh_client.exec_command('date > /tmp/timestamp; sync')
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self.timestamp = ssh_client.exec_command('cat /tmp/timestamp')
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def _check_timestamp(self, server_or_ip):
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ssh_client = self._ssh_to_server(server_or_ip)
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got_timestamp = ssh_client.exec_command('cat /tmp/timestamp')
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self.assertEqual(self.timestamp, got_timestamp)
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def _create_floating_ip(self):
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floating_ip = self.compute_client.floating_ips.create()
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self.addCleanup(floating_ip.delete)
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return floating_ip
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def _set_floating_ip_to_server(self, server, floating_ip):
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server.add_floating_ip(floating_ip)
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@test.services('compute', 'network', 'image')
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def test_snapshot_pattern(self):
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# prepare for booting a instance
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self._add_keypair()
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self.security_group = self._create_security_group_nova()
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# boot a instance and create a timestamp file in it
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server = self._boot_image(CONF.compute.image_ref)
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if CONF.compute.use_floatingip_for_ssh:
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fip_for_server = self._create_floating_ip()
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self._set_floating_ip_to_server(server, fip_for_server)
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self._write_timestamp(fip_for_server.ip)
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else:
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self._write_timestamp(server)
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# snapshot the instance
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snapshot_image = self.create_server_snapshot(server=server)
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# boot a second instance from the snapshot
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server_from_snapshot = self._boot_image(snapshot_image.id)
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# check the existence of the timestamp file in the second instance
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if CONF.compute.use_floatingip_for_ssh:
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fip_for_snapshot = self._create_floating_ip()
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self._set_floating_ip_to_server(server_from_snapshot,
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fip_for_snapshot)
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self._check_timestamp(fip_for_snapshot.ip)
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else:
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self._check_timestamp(server_from_snapshot)
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