summaryrefslogtreecommitdiffstats
path: root/vnftest/common/openstack_utils.py
blob: 829b916463175f01d6b6afc0ae3f32cb43a9e14e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
##############################################################################
# Copyright 2018 EuropeanSoftwareMarketingLtd.
# ===================================================================
#  Licensed under the ApacheLicense, Version2.0 (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
#
# 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
##############################################################################
# vnftest comment: this is a modified copy of
# yardstick/common/openstack_utils.py

from __future__ import absolute_import

import os
import time
import sys
import logging

from keystoneauth1 import loading
from keystoneauth1 import session
from cinderclient import client as cinderclient
from novaclient import client as novaclient
from glanceclient import client as glanceclient
from neutronclient.neutron import client as neutronclient
from heatclient.client import Client as heatclient

log = logging.getLogger(__name__)

DEFAULT_HEAT_API_VERSION = '1'
DEFAULT_API_VERSION = '2'

creds = {}


# *********************************************
#   CREDENTIALS
# *********************************************
def get_credentials():
    """Returns a creds dictionary filled with parsed from env"""
    if len(creds) == 0:
        # The most common way to pass these info to the script is to do it
        # through environment variables.
        keystone_api_version = os.getenv('OS_IDENTITY_API_VERSION')

        if keystone_api_version is None or keystone_api_version == '2':
            keystone_v3 = False
            creds['tenant_name'] = os.environ.get('OS_TENANT_NAME')
        else:
            keystone_v3 = True
            creds['tenant_name'] = os.environ.get('OS_PROJECT_NAME')
            creds['project_name'] = os.environ.get('OS_PROJECT_NAME')

        creds["username"] = os.environ.get("OS_USERNAME")
        creds["password"] = os.environ.get("OS_PASSWORD")
        creds["auth_url"] = os.environ.get("OS_AUTH_URL")
        creds["tenant_id"] = os.environ.get("OS_TENANT_ID")

        if keystone_v3:
            if os.getenv('OS_USER_DOMAIN_NAME') is not None:
                creds.update({
                    "user_domain_name": os.getenv('OS_USER_DOMAIN_NAME')
                })
            if os.getenv('OS_PROJECT_DOMAIN_NAME') is not None:
                creds.update({
                    "project_domain_name": os.getenv('OS_PROJECT_DOMAIN_NAME')
                })
    return creds


def get_session_auth():
    loader = loading.get_plugin_loader('password')
    creds = get_credentials()
    auth = loader.load_from_options(**creds)
    return auth


def get_session():
    auth = get_session_auth()
    try:
        cacert = os.environ['OS_CACERT']
    except KeyError:
        return session.Session(auth=auth)
    else:
        insecure = os.getenv('OS_INSECURE', '').lower() == 'true'
        cacert = False if insecure else cacert
        return session.Session(auth=auth, verify=cacert)


def get_endpoint(service_type, endpoint_type='publicURL'):
    auth = get_session_auth()
    # for multi-region, we need to specify region
    # when finding the endpoint
    return get_session().get_endpoint(auth=auth,
                                      service_type=service_type,
                                      endpoint_type=endpoint_type,
                                      region_name=os.environ.get(
                                          "OS_REGION_NAME"))


# *********************************************
#   CLIENTS
# *********************************************
def get_heat_api_version():     # pragma: no cover
    try:
        api_version = os.environ['HEAT_API_VERSION']
    except KeyError:
        return DEFAULT_HEAT_API_VERSION
    else:
        log.info("HEAT_API_VERSION is set in env as '%s'", api_version)
        return api_version


def get_cinder_client_version():      # pragma: no cover
    try:
        api_version = os.environ['OS_VOLUME_API_VERSION']
    except KeyError:
        return DEFAULT_API_VERSION
    else:
        log.info("OS_VOLUME_API_VERSION is set in env as '%s'", api_version)
        return api_version


def get_cinder_client():      # pragma: no cover
    sess = get_session()
    return cinderclient.Client(get_cinder_client_version(), session=sess)


def get_nova_client_version():      # pragma: no cover
    try:
        api_version = os.environ['OS_COMPUTE_API_VERSION']
    except KeyError:
        return DEFAULT_API_VERSION
    else:
        log.info("OS_COMPUTE_API_VERSION is set in env as '%s'", api_version)
        return api_version


def get_nova_client():      # pragma: no cover
    sess = get_session()
    return novaclient.Client(get_nova_client_version(), session=sess)


def get_neutron_client_version():   # pragma: no cover
    try:
        api_version = os.environ['OS_NETWORK_API_VERSION']
    except KeyError:
        return DEFAULT_API_VERSION
    else:
        log.info("OS_NETWORK_API_VERSION is set in env as '%s'", api_version)
        return api_version


def get_neutron_client():   # pragma: no cover
    sess = get_session()
    return neutronclient.Client(get_neutron_client_version(), session=sess)


def get_heat_client():   # pragma: no cover
    sess = get_session()
    return heatclient(get_heat_api_version(), session=sess)


def get_glance_client_version():    # pragma: no cover
    try:
        api_version = os.environ['OS_IMAGE_API_VERSION']
    except KeyError:
        return DEFAULT_API_VERSION
    else:
        log.info("OS_IMAGE_API_VERSION is set in env as '%s'", api_version)
        return api_version


def get_glance_client():    # pragma: no cover
    sess = get_session()
    return glanceclient.Client(get_glance_client_version(), session=sess)


# *********************************************
#   NOVA
# *********************************************
def get_instances(nova_client):     # pragma: no cover
    try:
        return nova_client.servers.list(search_opts={'all_tenants': 1})
    except Exception:
        log.exception("Error [get_instances(nova_client)]")


def get_instance_status(nova_client, instance):     # pragma: no cover
    try:
        return nova_client.servers.get(instance.id).status
    except Exception:
        log.exception("Error [get_instance_status(nova_client)]")


def get_instance_by_name(nova_client, instance_name):   # pragma: no cover
    try:
        return nova_client.servers.find(name=instance_name)
    except Exception:
        log.exception("Error [get_instance_by_name(nova_client, '%s')]",
                      instance_name)


def get_instance_by_id(instance_id):   # pragma: no cover
    try:
        return get_nova_client().servers.find(id=instance_id)
    except Exception:
        log.exception("Error [get_instance_by_id(nova_client, '%s')]",
                      instance_id)


def get_aggregates(nova_client):    # pragma: no cover
    try:
        return nova_client.aggregates.list()
    except Exception:
        log.exception("Error [get_aggregates(nova_client)]")


def get_availability_zones(nova_client):    # pragma: no cover
    try:
        return nova_client.availability_zones.list()
    except Exception:
        log.exception("Error [get_availability_zones(nova_client)]")


def get_availability_zone_names(nova_client):   # pragma: no cover
    try:
        return [az.zoneName for az in get_availability_zones(nova_client)]
    except Exception:
        log.exception("Error [get_availability_zone_names(nova_client)]")


def create_aggregate(nova_client, aggregate_name, av_zone):  # pragma: no cover
    try:
        nova_client.aggregates.create(aggregate_name, av_zone)
    except Exception:
        log.exception("Error [create_aggregate(nova_client, %s, %s)]",
                      aggregate_name, av_zone)
        return False
    else:
        return True


def get_aggregate_id(nova_client, aggregate_name):      # pragma: no cover
    try:
        aggregates = get_aggregates(nova_client)
        _id = next((ag.id for ag in aggregates if ag.name == aggregate_name))
    except Exception:
        log.exception("Error [get_aggregate_id(nova_client, %s)]",
                      aggregate_name)
    else:
        return _id


def add_host_to_aggregate(nova_client, aggregate_name,
                          compute_host):    # pragma: no cover
    try:
        aggregate_id = get_aggregate_id(nova_client, aggregate_name)
        nova_client.aggregates.add_host(aggregate_id, compute_host)
    except Exception:
        log.exception("Error [add_host_to_aggregate(nova_client, %s, %s)]",
                      aggregate_name, compute_host)
        return False
    else:
        return True


def create_aggregate_with_host(nova_client, aggregate_name, av_zone,
                               compute_host):    # pragma: no cover
    try:
        create_aggregate(nova_client, aggregate_name, av_zone)
        add_host_to_aggregate(nova_client, aggregate_name, compute_host)
    except Exception:
        log.exception("Error [create_aggregate_with_host("
                      "nova_client, %s, %s, %s)]",
                      aggregate_name, av_zone, compute_host)
        return False
    else:
        return True


def create_keypair(nova_client, name, key_path=None):    # pragma: no cover
    try:
        with open(key_path) as fpubkey:
            keypair = get_nova_client().keypairs.create(name=name, public_key=fpubkey.read())
            return keypair
    except Exception:
        log.exception("Error [create_keypair(nova_client)]")


def create_instance(json_body):    # pragma: no cover
    try:
        return get_nova_client().servers.create(**json_body)
    except Exception:
        log.exception("Error create instance failed")
        return None


def create_instance_and_wait_for_active(json_body):    # pragma: no cover
    SLEEP = 3
    VM_BOOT_TIMEOUT = 180
    nova_client = get_nova_client()
    instance = create_instance(json_body)
    count = VM_BOOT_TIMEOUT / SLEEP
    for n in range(count, -1, -1):
        status = get_instance_status(nova_client, instance)
        if status.lower() == "active":
            return instance
        elif status.lower() == "error":
            log.error("The instance went to ERROR status.")
            return None
        time.sleep(SLEEP)
    log.error("Timeout booting the instance.")
    return None


def attach_server_volume(server_id, volume_id, device=None):    # pragma: no cover
    try:
        get_nova_client().volumes.create_server_volume(server_id, volume_id, device)
    except Exception:
        log.exception("Error [attach_server_volume(nova_client, '%s', '%s')]",
                      server_id, volume_id)
        return False
    else:
        return True


def delete_instance(nova_client, instance_id):      # pragma: no cover
    try:
        nova_client.servers.force_delete(instance_id)
    except Exception:
        log.exception("Error [delete_instance(nova_client, '%s')]",
                      instance_id)
        return False
    else:
        return True


def remove_host_from_aggregate(nova_client, aggregate_name,
                               compute_host):  # pragma: no cover
    try:
        aggregate_id = get_aggregate_id(nova_client, aggregate_name)
        nova_client.aggregates.remove_host(aggregate_id, compute_host)
    except Exception:
        log.exception("Error remove_host_from_aggregate(nova_client, %s, %s)",
                      aggregate_name, compute_host)
        return False
    else:
        return True


def remove_hosts_from_aggregate(nova_client,
                                aggregate_name):   # pragma: no cover
    aggregate_id = get_aggregate_id(nova_client, aggregate_name)
    hosts = nova_client.aggregates.get(aggregate_id).hosts
    assert(
        all(remove_host_from_aggregate(nova_client, aggregate_name, host)
            for host in hosts))


def delete_aggregate(nova_client, aggregate_name):  # pragma: no cover
    try:
        remove_hosts_from_aggregate(nova_client, aggregate_name)
        nova_client.aggregates.delete(aggregate_name)
    except Exception:
        log.exception("Error [delete_aggregate(nova_client, %s)]",
                      aggregate_name)
        return False
    else:
        return True


def get_server_by_name(name):   # pragma: no cover
    try:
        return get_nova_client().servers.list(search_opts={'name': name})[0]
    except IndexError:
        log.exception('Failed to get nova client')
        raise


def create_flavor(name, ram, vcpus, disk, **kwargs):   # pragma: no cover
    try:
        return get_nova_client().flavors.create(name, ram, vcpus, disk, **kwargs)
    except Exception:
        log.exception("Error [create_flavor(nova_client, %s, %s, %s, %s, %s)]",
                      name, ram, disk, vcpus, kwargs['is_public'])
        return None


def get_image_by_name(name):    # pragma: no cover
    images = get_nova_client().images.list()
    try:
        return next((a for a in images if a.name == name))
    except StopIteration:
        log.exception('No image matched')


def get_flavor_id(nova_client, flavor_name):    # pragma: no cover
    flavors = nova_client.flavors.list(detailed=True)
    flavor_id = ''
    for f in flavors:
        if f.name == flavor_name:
            flavor_id = f.id
            break
    return flavor_id


def get_flavor_by_name(name):   # pragma: no cover
    flavors = get_nova_client().flavors.list()
    try:
        return next((a for a in flavors if a.name == name))
    except StopIteration:
        log.exception('No flavor matched')


def check_status(status, name, iterations, interval):   # pragma: no cover
    for i in range(iterations):
        try:
            server = get_server_by_name(name)
        except IndexError:
            log.error('Cannot found %s server', name)
            raise

        if server.status == status:
            return True

        time.sleep(interval)
    return False


def delete_flavor(flavor_id):    # pragma: no cover
    try:
        get_nova_client().flavors.delete(flavor_id)
    except Exception:
        log.exception("Error [delete_flavor(nova_client, %s)]", flavor_id)
        return False
    else:
        return True


def delete_keypair(nova_client, key):     # pragma: no cover
    try:
        nova_client.keypairs.delete(key=key)
        return True
    except Exception:
        log.exception("Error [delete_keypair(nova_client)]")
        return False


# *********************************************
#   NEUTRON
# *********************************************
def get_network_by_name(network_name):       # pragma: no cover
    try:
        networks = get_neutron_client().list_networks()['networks']
        return next((n for n in networks if n['name'] == network_name), None)
    except Exception:
        log.exception("Error [get_instance_by_id(nova_client, '%s')]",
                      network_name)


def get_network_id(neutron_client, network_name):       # pragma: no cover
    networks = neutron_client.list_networks()['networks']
    return next((n['id'] for n in networks if n['name'] == network_name), None)


def get_port_id_by_ip(neutron_client, ip_address):      # pragma: no cover
    ports = neutron_client.list_ports()['ports']
    return next((i['id'] for i in ports for j in i.get(
        'fixed_ips') if j['ip_address'] == ip_address), None)


def create_neutron_net(neutron_client, json_body):      # pragma: no cover
    try:
        network = neutron_client.create_network(body=json_body)
        return network['network']['id']
    except Exception:
        log.error("Error [create_neutron_net(neutron_client)]")
        raise Exception("operation error")
        return None


def delete_neutron_net(neutron_client, network_id):      # pragma: no cover
    try:
        neutron_client.delete_network(network_id)
        return True
    except Exception:
        log.error("Error [delete_neutron_net(neutron_client, '%s')]" % network_id)
        return False


def create_neutron_subnet(neutron_client, json_body):      # pragma: no cover
    try:
        subnet = neutron_client.create_subnet(body=json_body)
        return subnet['subnets'][0]['id']
    except Exception:
        log.error("Error [create_neutron_subnet")
        raise Exception("operation error")
        return None


def create_neutron_router(neutron_client, json_body):      # pragma: no cover
    try:
        router = neutron_client.create_router(json_body)
        return router['router']['id']
    except Exception:
        log.error("Error [create_neutron_router(neutron_client)]")
        raise Exception("operation error")
        return None


def delete_neutron_router(neutron_client, router_id):      # pragma: no cover
    try:
        neutron_client.delete_router(router=router_id)
        return True
    except Exception:
        log.error("Error [delete_neutron_router(neutron_client, '%s')]" % router_id)
        return False


def remove_gateway_router(neutron_client, router_id):      # pragma: no cover
    try:
        neutron_client.remove_gateway_router(router_id)
        return True
    except Exception:
        log.error("Error [remove_gateway_router(neutron_client, '%s')]" % router_id)
        return False


def remove_interface_router(neutron_client, router_id, subnet_id,
                            **json_body):      # pragma: no cover
    json_body.update({"subnet_id": subnet_id})
    try:
        neutron_client.remove_interface_router(router=router_id,
                                               body=json_body)
        return True
    except Exception:
        log.error("Error [remove_interface_router(neutron_client, '%s', "
                  "'%s')]" % (router_id, subnet_id))
        return False


def create_floating_ip(neutron_client, extnet_id):      # pragma: no cover
    props = {'floating_network_id': extnet_id}
    try:
        ip_json = neutron_client.create_floatingip({'floatingip': props})
        fip_addr = ip_json['floatingip']['floating_ip_address']
        fip_id = ip_json['floatingip']['id']
    except Exception:
        log.error("Error [create_floating_ip(neutron_client)]")
        return None
    return {'fip_addr': fip_addr, 'fip_id': fip_id}


def delete_floating_ip(nova_client, floatingip_id):      # pragma: no cover
    try:
        nova_client.floating_ips.delete(floatingip_id)
        return True
    except Exception:
        log.error("Error [delete_floating_ip(nova_client, '%s')]" % floatingip_id)
        return False


def get_security_groups(neutron_client):      # pragma: no cover
    try:
        security_groups = neutron_client.list_security_groups()[
            'security_groups']
        return security_groups
    except Exception:
        log.error("Error [get_security_groups(neutron_client)]")
        return None


def get_security_group_id(neutron_client, sg_name):      # pragma: no cover
    security_groups = get_security_groups(neutron_client)
    id = ''
    for sg in security_groups:
        if sg['name'] == sg_name:
            id = sg['id']
            break
    return id


def create_security_group(neutron_client, sg_name, sg_description):      # pragma: no cover
    json_body = {'security_group': {'name': sg_name,
                                    'description': sg_description}}
    try:
        secgroup = neutron_client.create_security_group(json_body)
        return secgroup['security_group']
    except Exception:
        log.error("Error [create_security_group(neutron_client, '%s', "
                  "'%s')]" % (sg_name, sg_description))
        return None


def create_secgroup_rule(neutron_client, sg_id, direction, protocol,
                         port_range_min=None, port_range_max=None,
                         **json_body):      # pragma: no cover
    # We create a security group in 2 steps
    # 1 - we check the format and set the json body accordingly
    # 2 - we call neturon client to create the security group

    # Format check
    json_body.update({'security_group_rule': {'direction': direction,
                     'security_group_id': sg_id, 'protocol': protocol}})
    # parameters may be
    # - both None => we do nothing
    # - both Not None => we add them to the json description
    # but one cannot be None is the other is not None
    if (port_range_min is not None and port_range_max is not None):
        # add port_range in json description
        json_body['security_group_rule']['port_range_min'] = port_range_min
        json_body['security_group_rule']['port_range_max'] = port_range_max
        log.debug("Security_group format set (port range included)")
    else:
        # either both port range are set to None => do nothing
        # or one is set but not the other => log it and return False
        if port_range_min is None and port_range_max is None:
            log.debug("Security_group format set (no port range mentioned)")
        else:
            log.error("Bad security group format."
                      "One of the port range is not properly set:"
                      "range min: {},"
                      "range max: {}".format(port_range_min,
                                             port_range_max))
            return False

    # Create security group using neutron client
    try:
        neutron_client.create_security_group_rule(json_body)
        return True
    except Exception:
        log.exception("Impossible to create_security_group_rule,"
                      "security group rule probably already exists")
        return False


def create_security_group_full(neutron_client,
                               sg_name, sg_description):      # pragma: no cover
    sg_id = get_security_group_id(neutron_client, sg_name)
    if sg_id != '':
        log.info("Using existing security group '%s'..." % sg_name)
    else:
        log.info("Creating security group  '%s'..." % sg_name)
        SECGROUP = create_security_group(neutron_client,
                                         sg_name,
                                         sg_description)
        if not SECGROUP:
            log.error("Failed to create the security group...")
            return None

        sg_id = SECGROUP['id']

        log.debug("Security group '%s' with ID=%s created successfully."
                  % (SECGROUP['name'], sg_id))

        log.debug("Adding ICMP rules in security group '%s'..."
                  % sg_name)
        if not create_secgroup_rule(neutron_client, sg_id,
                                    'ingress', 'icmp'):
            log.error("Failed to create the security group rule...")
            return None

        log.debug("Adding SSH rules in security group '%s'..."
                  % sg_name)
        if not create_secgroup_rule(
                neutron_client, sg_id, 'ingress', 'tcp', '22', '22'):
            log.error("Failed to create the security group rule...")
            return None

        if not create_secgroup_rule(
                neutron_client, sg_id, 'egress', 'tcp', '22', '22'):
            log.error("Failed to create the security group rule...")
            return None
    return sg_id


# *********************************************
#   GLANCE
# *********************************************
def get_image_id(glance_client, image_name):    # pragma: no cover
    images = glance_client.images.list()
    return next((i.id for i in images if i.name == image_name), None)


def create_image(glance_client, image_name, file_path, disk_format,
                 container_format, min_disk, min_ram, protected, tag,
                 public, **kwargs):    # pragma: no cover
    if not os.path.isfile(file_path):
        log.error("Error: file %s does not exist." % file_path)
        return None
    try:
        image_id = get_image_id(glance_client, image_name)
        if image_id is not None:
            log.info("Image %s already exists." % image_name)
        else:
            log.info("Creating image '%s' from '%s'...", image_name, file_path)

            image = glance_client.images.create(name=image_name,
                                                visibility=public,
                                                disk_format=disk_format,
                                                container_format=container_format,
                                                min_disk=min_disk,
                                                min_ram=min_ram,
                                                tags=tag,
                                                protected=protected,
                                                **kwargs)
            image_id = image.id
            with open(file_path) as image_data:
                glance_client.images.upload(image_id, image_data)
        return image_id
    except Exception:
        log.error("Error [create_glance_image(glance_client, '%s', '%s', '%s')]",
                  image_name, file_path, public)
        return None


def delete_image(glance_client, image_id):    # pragma: no cover
    try:
        glance_client.images.delete(image_id)

    except Exception:
        log.exception("Error [delete_flavor(glance_client, %s)]", image_id)
        return False
    else:
        return True


# *********************************************
#   CINDER
# *********************************************
def get_volume_id(volume_name):    # pragma: no cover
    volumes = get_cinder_client().volumes.list()
    return next((v.id for v in volumes if v.name == volume_name), None)


def create_volume(cinder_client, volume_name, volume_size,
                  volume_image=False):    # pragma: no cover
    try:
        if volume_image:
            volume = cinder_client.volumes.create(name=volume_name,
                                                  size=volume_size,
                                                  imageRef=volume_image)
        else:
            volume = cinder_client.volumes.create(name=volume_name,
                                                  size=volume_size)
        return volume
    except Exception:
        log.exception("Error [create_volume(cinder_client, %s)]",
                      (volume_name, volume_size))
        return None


def delete_volume(cinder_client, volume_id, forced=False):      # pragma: no cover
    try:
        if forced:
            try:
                cinder_client.volumes.detach(volume_id)
            except:
                log.error(sys.exc_info()[0])
            cinder_client.volumes.force_delete(volume_id)
        else:
            while True:
                volume = get_cinder_client().volumes.get(volume_id)
                if volume.status.lower() == 'available':
                    break
            cinder_client.volumes.delete(volume_id)
        return True
    except Exception:
        log.exception("Error [delete_volume(cinder_client, '%s')]" % volume_id)
        return False


def detach_volume(server_id, volume_id):      # pragma: no cover
    try:
        get_nova_client().volumes.delete_server_volume(server_id, volume_id)
        return True
    except Exception:
        log.exception("Error [detach_server_volume(nova_client, '%s', '%s')]",
                      server_id, volume_id)
        return False
# *********************************************
#   HEAT
# *********************************************


def get_stack(heat_stack_id):    # pragma: no cover
    try:
        client = get_heat_client()
        return client.stacks.get(heat_stack_id)
    except Exception as e:
        log.exception("Error [get_stack(heat_stack_id)]", e)


def get_stack_resources(heat_stack_id):    # pragma: no cover
    try:
        client = get_heat_client()
        return client.resources.list(heat_stack_id)
    except Exception as e:
        log.exception("Error [get_stack_resources(heat_stack_id)]", e)


def get_stack_vms(heat_stack_id):    # pragma: no cover
    resources = get_stack_resources(heat_stack_id)
    ret_vms = []
    for resource in resources:
        if resource.resource_type == "OS::Nova::Server":
            ret_vms.append(resource)
    return ret_vms