snaps/openstack/utils/tests/nova_utils_tests.py

   1 # Copyright (c) 2017 Cable Television Laboratories, Inc. ("CableLabs")
   2 #                    and others.  All rights reserved.
   3 #
   4 # Licensed under the Apache License, Version 2.0 (the "License");
   5 # you may not use this file except in compliance with the License.
   6 # You may obtain a copy of the License at:
   7 #
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9 #
  10 # Unless required by applicable law or agreed to in writing, software
  11 # distributed under the License is distributed on an "AS IS" BASIS,
  12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15 import logging
  16 import time
  17 import uuid
  18
  19 import os
  20
  21 from snaps import file_utils
  22 from snaps.config.flavor import FlavorConfig
  23 from snaps.config.network import PortConfig
  24 from snaps.config.vm_inst import VmInstanceConfig
  25 from snaps.config.volume import VolumeConfig
  26 from snaps.openstack import create_instance
  27 from snaps.openstack.create_flavor import OpenStackFlavor
  28 from snaps.openstack.create_image import OpenStackImage
  29 from snaps.openstack.create_instance import OpenStackVmInstance
  30 from snaps.openstack.create_network import OpenStackNetwork
  31 from snaps.openstack.create_volume import OpenStackVolume
  32 from snaps.openstack.tests import openstack_tests
  33 from snaps.openstack.tests.os_source_file_test import OSComponentTestCase
  34 from snaps.openstack.utils import (
  35     nova_utils, neutron_utils, glance_utils, cinder_utils, keystone_utils)
  36 from snaps.openstack.utils.nova_utils import NovaException
  37
  38 __author__ = 'spisarski'
  39
  40 logger = logging.getLogger('nova_utils_tests')
  41
  42
  43 class NovaSmokeTests(OSComponentTestCase):
  44     """
  45     Tests to ensure that the nova client can communicate with the cloud
  46     """
  47
  48     def test_nova_connect_success(self):
  49         """
  50         Tests to ensure that the proper credentials can connect.
  51         """
  52         nova = nova_utils.nova_client(self.os_creds, self.os_session)
  53
  54         # This should not throw an exception
  55         nova.flavors.list()
  56
  57     def test_nova_get_hypervisor_hosts(self):
  58         """
  59         Tests to ensure that get_hypervisors() function works.
  60         """
  61         nova = nova_utils.nova_client(self.os_creds, self.os_session)
  62
  63         hosts = nova_utils.get_hypervisor_hosts(nova)
  64         # This should not throw an exception
  65         self.assertGreaterEqual(len(hosts), 1)
  66
  67     def test_nova_connect_fail(self):
  68         """
  69         Tests to ensure that the improper credentials cannot connect.
  70         """
  71         from snaps.openstack.os_credentials import OSCreds
  72
  73         nova = nova_utils.nova_client(
  74             OSCreds(username='user', password='pass',
  75                     auth_url=self.os_creds.auth_url,
  76                     project_name=self.os_creds.project_name,
  77                     proxy_settings=self.os_creds.proxy_settings))
  78
  79         # This should throw an exception
  80         with self.assertRaises(Exception):
  81             nova.flavors.list()
  82
  83
  84 class NovaUtilsKeypairTests(OSComponentTestCase):
  85     """
  86     Test basic nova keypair functionality
  87     """
  88
  89     def setUp(self):
  90         """
  91         Instantiates the CreateImage object that is responsible for downloading
  92         and creating an OS image file within OpenStack
  93         """
  94         guid = self.__class__.__name__ + '-' + str(uuid.uuid4())
  95         self.priv_key_file_path = 'tmp/' + guid
  96         self.pub_key_file_path = self.priv_key_file_path + '.pub'
  97
  98         self.nova = nova_utils.nova_client(self.os_creds, self.os_session)
  99         self.keys = nova_utils.create_keys()
 100         self.public_key = nova_utils.public_key_openssh(self.keys)
 101         self.keypair_name = guid
 102         self.keypair = None
 103
 104     def tearDown(self):
 105         """
 106         Cleans the image and downloaded image file
 107         """
 108         if self.keypair:
 109             try:
 110                 nova_utils.delete_keypair(self.nova, self.keypair)
 111             except:
 112                 pass
 113
 114         try:
 115             os.chmod(self.priv_key_file_path, 0o777)
 116             os.remove(self.priv_key_file_path)
 117         except:
 118             pass
 119
 120         try:
 121             os.chmod(self.pub_key_file_path, 0o777)
 122             os.remove(self.pub_key_file_path)
 123         except:
 124             pass
 125
 126         super(self.__class__, self).__clean__()
 127
 128     def test_create_keypair(self):
 129         """
 130         Tests the creation of an OpenStack keypair that does not exist.
 131         """
 132         self.keypair = nova_utils.upload_keypair(self.nova, self.keypair_name,
 133                                                  self.public_key)
 134         result = nova_utils.keypair_exists(self.nova, self.keypair)
 135         self.assertEqual(self.keypair, result)
 136         keypair = nova_utils.get_keypair_by_name(self.nova, self.keypair_name)
 137         self.assertEqual(self.keypair, keypair)
 138
 139     def test_create_delete_keypair(self):
 140         """
 141         Tests the creation of an OpenStack keypair that does not exist.
 142         """
 143         self.keypair = nova_utils.upload_keypair(self.nova, self.keypair_name,
 144                                                  self.public_key)
 145         result = nova_utils.keypair_exists(self.nova, self.keypair)
 146         self.assertEqual(self.keypair, result)
 147         nova_utils.delete_keypair(self.nova, self.keypair)
 148         result2 = nova_utils.keypair_exists(self.nova, self.keypair)
 149         self.assertIsNone(result2)
 150
 151     def test_create_key_from_file(self):
 152         """
 153         Tests that the generated RSA keys are properly saved to files
 154         :return:
 155         """
 156         file_utils.save_keys_to_files(self.keys, self.pub_key_file_path,
 157                                       self.priv_key_file_path)
 158         self.keypair = nova_utils.upload_keypair_file(self.nova,
 159                                                       self.keypair_name,
 160                                                       self.pub_key_file_path)
 161         pub_key_file = open(os.path.expanduser(self.pub_key_file_path))
 162         pub_key = pub_key_file.read()
 163         pub_key_file.close()
 164         self.assertEqual(self.keypair.public_key, pub_key)
 165
 166
 167 class NovaUtilsFlavorTests(OSComponentTestCase):
 168     """
 169     Test basic nova flavor functionality
 170     """
 171
 172     def setUp(self):
 173         """
 174         Instantiates the CreateImage object that is responsible for downloading
 175         and creating an OS image file within OpenStack
 176         """
 177         guid = self.__class__.__name__ + '-' + str(uuid.uuid4())
 178         self.flavor_settings = FlavorConfig(
 179             name=guid + '-name', flavor_id=guid + '-id', ram=1, disk=1,
 180             vcpus=1, ephemeral=1, swap=2, rxtx_factor=3.0, is_public=False)
 181         self.nova = nova_utils.nova_client(self.os_creds, self.os_session)
 182         self.flavor = None
 183
 184     def tearDown(self):
 185         """
 186         Cleans the image and downloaded image file
 187         """
 188         if self.flavor:
 189             try:
 190                 nova_utils.delete_flavor(self.nova, self.flavor)
 191             except:
 192                 pass
 193
 194         super(self.__class__, self).__clean__()
 195
 196     def test_create_flavor(self):
 197         """
 198         Tests the creation of an OpenStack keypair that does not exist.
 199         """
 200         self.flavor = nova_utils.create_flavor(self.nova, self.flavor_settings)
 201         self.validate_flavor()
 202
 203     def test_create_delete_flavor(self):
 204         """
 205         Tests the creation of an OpenStack keypair that does not exist.
 206         """
 207         self.flavor = nova_utils.create_flavor(self.nova, self.flavor_settings)
 208         self.validate_flavor()
 209         nova_utils.delete_flavor(self.nova, self.flavor)
 210         flavor = nova_utils.get_flavor_by_name(self.nova,
 211                                                self.flavor_settings.name)
 212         self.assertIsNone(flavor)
 213
 214     def validate_flavor(self):
 215         """
 216         Validates the flavor_settings against the OpenStack flavor object
 217         """
 218         self.assertIsNotNone(self.flavor)
 219         self.assertEqual(self.flavor_settings.name, self.flavor.name)
 220         self.assertEqual(self.flavor_settings.flavor_id, self.flavor.id)
 221         self.assertEqual(self.flavor_settings.ram, self.flavor.ram)
 222         self.assertEqual(self.flavor_settings.disk, self.flavor.disk)
 223         self.assertEqual(self.flavor_settings.vcpus, self.flavor.vcpus)
 224         self.assertEqual(self.flavor_settings.ephemeral, self.flavor.ephemeral)
 225
 226         if self.flavor_settings.swap == 0:
 227             self.assertEqual('', self.flavor.swap)
 228         else:
 229             self.assertEqual(self.flavor_settings.swap, self.flavor.swap)
 230
 231         self.assertEqual(self.flavor_settings.rxtx_factor,
 232                          self.flavor.rxtx_factor)
 233         self.assertEqual(self.flavor_settings.is_public, self.flavor.is_public)
 234
 235
 236 class NovaUtilsInstanceTests(OSComponentTestCase):
 237     """
 238     Tests the creation of VM instances via nova_utils.py
 239     """
 240
 241     def setUp(self):
 242         """
 243         Setup objects required by VM instances
 244         :return:
 245         """
 246
 247         guid = self.__class__.__name__ + '-' + str(uuid.uuid4())
 248
 249         self.nova = nova_utils.nova_client(
 250             self.os_creds, self.os_session)
 251         self.keystone = keystone_utils.keystone_client(
 252             self.os_creds, self.os_session)
 253         self.neutron = neutron_utils.neutron_client(
 254             self.os_creds, self.os_session)
 255         self.glance = glance_utils.glance_client(
 256             self.os_creds, self.os_session)
 257
 258         self.image_creator = None
 259         self.network_creator = None
 260         self.flavor_creator = None
 261         self.port = None
 262         self.vm_inst = None
 263
 264         try:
 265             image_settings = openstack_tests.cirros_image_settings(
 266                 name=guid + '-image', image_metadata=self.image_metadata)
 267             self.image_creator = OpenStackImage(
 268                 self.os_creds, image_settings=image_settings)
 269             self.image_creator.create()
 270
 271             network_settings = openstack_tests.get_priv_net_config(
 272                 self.os_creds.project_name, guid + '-net',
 273                 guid + '-subnet').network_settings
 274             self.network_creator = OpenStackNetwork(
 275                 self.os_creds, network_settings)
 276             self.network_creator.create()
 277
 278             self.flavor_creator = OpenStackFlavor(
 279                 self.os_creds,
 280                 FlavorConfig(
 281                     name=guid + '-flavor-name', ram=256, disk=10, vcpus=1))
 282             self.flavor_creator.create()
 283
 284             port_settings = PortConfig(
 285                 name=guid + '-port', network_name=network_settings.name)
 286             self.port = neutron_utils.create_port(
 287                 self.neutron, self.os_creds, port_settings)
 288
 289             self.instance_settings = VmInstanceConfig(
 290                 name=guid + '-vm_inst',
 291                 flavor=self.flavor_creator.flavor_settings.name,
 292                 port_settings=[port_settings])
 293         except:
 294             self.tearDown()
 295             raise
 296
 297     def tearDown(self):
 298         """
 299         Cleanup deployed resources
 300         :return:
 301         """
 302         if self.vm_inst:
 303             try:
 304                 nova_utils.delete_vm_instance(self.nova, self.vm_inst)
 305             except:
 306                 pass
 307         if self.port:
 308             try:
 309                 neutron_utils.delete_port(self.neutron, self.port)
 310             except:
 311                 pass
 312         if self.flavor_creator:
 313             try:
 314                 self.flavor_creator.clean()
 315             except:
 316                 pass
 317         if self.network_creator:
 318             try:
 319                 self.network_creator.clean()
 320             except:
 321                 pass
 322         if self.image_creator:
 323             try:
 324                 self.image_creator.clean()
 325             except:
 326                 pass
 327
 328         super(self.__class__, self).__clean__()
 329
 330     def test_create_instance(self):
 331         """
 332         Tests the nova_utils.create_server() method
 333         :return:
 334         """
 335
 336         self.vm_inst = nova_utils.create_server(
 337             self.nova, self.keystone, self.neutron, self.glance,
 338             self.instance_settings, self.image_creator.image_settings,
 339             self.os_creds.project_name)
 340
 341         self.assertIsNotNone(self.vm_inst)
 342
 343         # Wait until instance is ACTIVE
 344         iters = 0
 345         active = False
 346         status = None
 347         while iters < 60:
 348             status = nova_utils.get_server_status(self.nova, self.vm_inst)
 349             if create_instance.STATUS_ACTIVE == status:
 350                 active = True
 351                 break
 352
 353             time.sleep(3)
 354             iters += 1
 355
 356         self.assertTrue(active, msg='VM {} status {} is not {}'.format(
 357             self.vm_inst.name, status, create_instance.STATUS_ACTIVE))
 358         vm_inst = nova_utils.get_latest_server_object(
 359             self.nova, self.neutron, self.keystone, self.vm_inst,
 360             self.os_creds.project_name)
 361
 362         self.assertEqual(self.vm_inst.name, vm_inst.name)
 363         self.assertEqual(self.vm_inst.id, vm_inst.id)
 364
 365
 366 class NovaUtilsInstanceVolumeTests(OSComponentTestCase):
 367     """
 368     Tests the creation of VM instances via nova_utils.py
 369     """
 370
 371     def setUp(self):
 372         """
 373         Setup objects required by VM instances
 374         :return:
 375         """
 376
 377         guid = self.__class__.__name__ + '-' + str(uuid.uuid4())
 378
 379         self.nova = nova_utils.nova_client(self.os_creds, self.os_session)
 380         self.cinder = cinder_utils.cinder_client(
 381             self.os_creds, self.os_session)
 382
 383         self.image_creator = None
 384         self.network_creator = None
 385         self.flavor_creator = None
 386         self.volume_creator = None
 387         self.instance_creator = None
 388
 389         try:
 390             image_settings = openstack_tests.cirros_image_settings(
 391                 name=guid + '-image', image_metadata=self.image_metadata)
 392             self.image_creator = OpenStackImage(
 393                 self.os_creds, image_settings=image_settings)
 394             self.image_creator.create()
 395
 396             network_settings = openstack_tests.get_priv_net_config(
 397                 self.os_creds.project_name, guid + '-net',
 398                 guid + '-subnet').network_settings
 399             self.network_creator = OpenStackNetwork(
 400                 self.os_creds, network_settings)
 401             self.network_creator.create()
 402
 403             self.flavor_creator = OpenStackFlavor(
 404                 self.os_creds,
 405                 FlavorConfig(
 406                     name=guid + '-flavor-name', ram=256, disk=10, vcpus=1))
 407             self.flavor_creator.create()
 408
 409             # Create Volume
 410             volume_settings = VolumeConfig(
 411                 name=self.__class__.__name__ + '-' + str(guid))
 412             self.volume_creator = OpenStackVolume(
 413                 self.os_creds, volume_settings)
 414             self.volume_creator.create(block=True)
 415
 416             port_settings = PortConfig(
 417                 name=guid + '-port', network_name=network_settings.name)
 418             instance_settings = VmInstanceConfig(
 419                 name=guid + '-vm_inst',
 420                 flavor=self.flavor_creator.flavor_settings.name,
 421                 port_settings=[port_settings])
 422             self.instance_creator = OpenStackVmInstance(
 423                 self.os_creds, instance_settings, image_settings)
 424             self.instance_creator.create(block=True)
 425         except:
 426             self.tearDown()
 427             raise
 428
 429     def tearDown(self):
 430         """
 431         Cleanup deployed resources
 432         :return:
 433         """
 434         if self.instance_creator:
 435             try:
 436                 self.instance_creator.clean()
 437             except:
 438                 pass
 439         if self.volume_creator:
 440             try:
 441                 self.volume_creator.clean()
 442             except:
 443                 pass
 444         if self.flavor_creator:
 445             try:
 446                 self.flavor_creator.clean()
 447             except:
 448                 pass
 449         if self.network_creator:
 450             try:
 451                 self.network_creator.clean()
 452             except:
 453                 pass
 454         if self.image_creator:
 455             try:
 456                 self.image_creator.clean()
 457             except:
 458                 pass
 459
 460         super(self.__class__, self).__clean__()
 461
 462     def test_add_remove_volume(self):
 463         """
 464         Tests the nova_utils.attach_volume() and detach_volume functions with
 465         a timeout value
 466         :return:
 467         """
 468
 469         self.assertIsNotNone(self.volume_creator.get_volume())
 470         self.assertEqual(0, len(self.volume_creator.get_volume().attachments))
 471
 472         # Attach volume to VM
 473         neutron = neutron_utils.neutron_client(
 474             self.os_creds, self.os_session)
 475         keystone = keystone_utils.keystone_client(
 476             self.os_creds, self.os_session)
 477         self.assertIsNotNone(nova_utils.attach_volume(
 478             self.nova, neutron, keystone, self.instance_creator.get_vm_inst(),
 479             self.volume_creator.get_volume(), self.os_creds.project_name))
 480
 481         vol_attach = None
 482         vol_detach = None
 483         attached = False
 484         start_time = time.time()
 485         while time.time() < start_time + 120:
 486             vol_attach = cinder_utils.get_volume_by_id(
 487                 self.cinder, self.volume_creator.get_volume().id)
 488
 489             if len(vol_attach.attachments) > 0:
 490                 attached = True
 491                 break
 492
 493             time.sleep(3)
 494
 495         self.assertTrue(attached)
 496         self.assertIsNotNone(vol_attach)
 497
 498         keystone = keystone_utils.keystone_client(
 499             self.os_creds, self.os_session)
 500         vm_attach = nova_utils.get_server_object_by_id(
 501             self.nova, neutron, keystone,
 502             self.instance_creator.get_vm_inst().id, self.os_creds.project_name)
 503
 504         # Validate Attachment
 505         self.assertIsNotNone(vol_attach)
 506         self.assertEqual(self.volume_creator.get_volume().id, vol_attach.id)
 507         self.assertEqual(1, len(vol_attach.attachments))
 508         self.assertEqual(vm_attach.volume_ids[0]['id'],
 509                          vol_attach.attachments[0]['volume_id'])
 510
 511         # Detach volume to VM
 512         self.assertIsNotNone(nova_utils.detach_volume(
 513             self.nova, neutron, keystone, self.instance_creator.get_vm_inst(),
 514             self.volume_creator.get_volume(), self.os_creds.project_name))
 515
 516         start_time = time.time()
 517         while time.time() < start_time + 120:
 518             vol_detach = cinder_utils.get_volume_by_id(
 519                 self.cinder, self.volume_creator.get_volume().id)
 520             if len(vol_detach.attachments) == 0:
 521                 attached = False
 522                 break
 523
 524             time.sleep(3)
 525
 526         self.assertFalse(attached)
 527         self.assertIsNotNone(vol_detach)
 528
 529         vm_detach = nova_utils.get_server_object_by_id(
 530             self.nova, neutron, keystone,
 531             self.instance_creator.get_vm_inst().id, self.os_creds.project_name)
 532
 533         # Validate Detachment
 534         self.assertIsNotNone(vol_detach)
 535         self.assertEqual(self.volume_creator.get_volume().id, vol_detach.id)
 536
 537         self.assertEqual(0, len(vol_detach.attachments))
 538         self.assertEqual(0, len(vm_detach.volume_ids))
 539
 540     def test_attach_volume_nowait(self):
 541         """
 542         Tests the nova_utils.attach_volume() with a timeout value that is too
 543         small to have the volume attachment data to be included on the VmInst
 544         object that was supposed to be returned
 545         """
 546
 547         self.assertIsNotNone(self.volume_creator.get_volume())
 548         self.assertEqual(0, len(self.volume_creator.get_volume().attachments))
 549
 550         # Attach volume to VM
 551         neutron = neutron_utils.neutron_client(self.os_creds, self.os_session)
 552         keystone = keystone_utils.keystone_client(
 553             self.os_creds, self.os_session)
 554         with self.assertRaises(NovaException):
 555             nova_utils.attach_volume(
 556                 self.nova, neutron, keystone,
 557                 self.instance_creator.get_vm_inst(),
 558                 self.volume_creator.get_volume(), self.os_creds.project_name,
 559                 0)
 560
 561     def test_detach_volume_nowait(self):
 562         """
 563         Tests the nova_utils.detach_volume() with a timeout value that is too
 564         small to have the volume attachment data to be included on the VmInst
 565         object that was supposed to be returned
 566         """
 567
 568         self.assertIsNotNone(self.volume_creator.get_volume())
 569         self.assertEqual(0, len(self.volume_creator.get_volume().attachments))
 570
 571         # Attach volume to VM
 572         neutron = neutron_utils.neutron_client(self.os_creds, self.os_session)
 573         keystone = keystone_utils.keystone_client(
 574             self.os_creds, self.os_session)
 575         nova_utils.attach_volume(
 576             self.nova, neutron, keystone, self.instance_creator.get_vm_inst(),
 577             self.volume_creator.get_volume(), self.os_creds.project_name)
 578
 579         # Check VmInst for attachment
 580         keystone = keystone_utils.keystone_client(
 581             self.os_creds, self.os_session)
 582         latest_vm = nova_utils.get_server_object_by_id(
 583             self.nova, neutron, keystone,
 584             self.instance_creator.get_vm_inst().id, self.os_creds.project_name)
 585         self.assertEqual(1, len(latest_vm.volume_ids))
 586
 587         # Check Volume for attachment
 588         vol_attach = None
 589         attached = False
 590         start_time = time.time()
 591         while time.time() < start_time + 120:
 592             vol_attach = cinder_utils.get_volume_by_id(
 593                 self.cinder, self.volume_creator.get_volume().id)
 594
 595             if len(vol_attach.attachments) > 0:
 596                 attached = True
 597                 break
 598
 599             time.sleep(3)
 600
 601         self.assertTrue(attached)
 602         self.assertIsNotNone(vol_attach)
 603
 604         # Detach volume
 605         with self.assertRaises(NovaException):
 606             nova_utils.detach_volume(
 607                 self.nova, neutron, keystone,
 608                 self.instance_creator.get_vm_inst(),
 609                 self.volume_creator.get_volume(), self.os_creds.project_name,
 610                 0)