/
vnc_ingress.py
1019 lines (918 loc) · 43.4 KB
/
vnc_ingress.py
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
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#
# Copyright (c) 2017 Juniper Networks, Inc. All rights reserved.
#
"""
VNC Ingress management for kubernetes
"""
import uuid
from config_db import *
from vnc_api.vnc_api import *
from kube_manager.common.kube_config_db import IngressKM
from kube_manager.common.kube_config_db import NamespaceKM
from kube_manager.vnc.loadbalancer import ServiceLbManager
from kube_manager.vnc.loadbalancer import ServiceLbListenerManager
from kube_manager.vnc.loadbalancer import ServiceLbPoolManager
from kube_manager.vnc.loadbalancer import ServiceLbMemberManager
from vnc_kubernetes_config import VncKubernetesConfig as vnc_kube_config
from vnc_security_policy import VncSecurityPolicy
from vnc_common import VncCommon
from kube_manager.common.utils import get_fip_pool_fq_name_from_dict_string
from kube_manager.vnc.label_cache import XLabelCache
from cStringIO import StringIO
from cfgm_common.utils import cgitb_hook
class VncIngress(VncCommon):
def __init__(self, tag_mgr=None):
self._k8s_event_type = 'Ingress'
super(VncIngress,self).__init__(self._k8s_event_type)
self._name = type(self).__name__
self._args = vnc_kube_config.args()
self._queue = vnc_kube_config.queue()
self._vnc_lib = vnc_kube_config.vnc_lib()
self._logger = vnc_kube_config.logger()
self._kube = vnc_kube_config.kube()
self._label_cache = vnc_kube_config.label_cache()
self._labels = XLabelCache(self._k8s_event_type)
self.tag_mgr = tag_mgr
self._ingress_label_cache = {}
self._default_vn_obj = None
self._fip_pool_obj = None
self.service_lb_mgr = ServiceLbManager()
self.service_ll_mgr = ServiceLbListenerManager()
self.service_lb_pool_mgr = ServiceLbPoolManager()
self.service_lb_member_mgr = ServiceLbMemberManager()
def _get_project(self, ns_name):
proj_fq_name = vnc_kube_config.cluster_project_fq_name(ns_name)
try:
proj_obj = self._vnc_lib.project_read(fq_name=proj_fq_name)
except NoIdError:
self._logger.error("%s - %s Not Found" %(self._name, proj_fq_name))
return None
return proj_obj
def _get_namespace(self, ns_name):
return NamespaceKM.find_by_name_or_uuid(ns_name)
def _is_network_isolated(self, ns_name):
return self._get_namespace(ns_name).is_isolated()
def _get_ip_fabric_forwarding(self, ns_name):
ns = self._get_namespace(ns_name)
if ns:
return ns.get_ip_fabric_forwarding()
return None
def _is_ip_fabric_forwarding_enabled(self, ns_name):
ip_fabric_forwarding = self._get_ip_fabric_forwarding(ns_name)
if ip_fabric_forwarding != None:
return ip_fabric_forwarding
else:
return self._args.ip_fabric_forwarding
def _get_network(self, ns_name):
set_default_vn = False
ns = self._get_namespace(ns_name)
vn_fq_name = ns.get_annotated_network_fq_name()
if not vn_fq_name:
if ns.is_isolated():
vn_fq_name = ns.get_isolated_pod_network_fq_name()
if not vn_fq_name:
if self._default_vn_obj:
return self._default_vn_obj
set_default_vn = True
vn_fq_name = vnc_kube_config.cluster_default_pod_network_fq_name()
try:
vn_obj = self._vnc_lib.virtual_network_read(fq_name=vn_fq_name)
except NoIdError:
self._logger.error("%s - %s Not Found" %(self._name, vn_fq_name))
return None
if set_default_vn:
self._default_vn_obj = vn_obj
return vn_obj
def _get_pod_ipam_subnet_uuid(self, ns_name, vn_obj):
pod_ipam_subnet_uuid = None
if self._is_network_isolated(ns_name):
vn_namespace = ns_name
else:
vn_namespace = 'default'
if self._is_ip_fabric_forwarding_enabled(vn_namespace):
ipam_fq_name = vnc_kube_config.ip_fabric_ipam_fq_name()
else:
ipam_fq_name = vnc_kube_config.pod_ipam_fq_name()
vn = VirtualNetworkKM.find_by_name_or_uuid(vn_obj.get_uuid())
pod_ipam_subnet_uuid = vn.get_ipam_subnet_uuid(ipam_fq_name)
if pod_ipam_subnet_uuid is None:
self._logger.error("%s - %s Not Found" %(self._name, ipam_fq_name))
return pod_ipam_subnet_uuid
def _get_specified_fip_pool(self, specified_fip_pool_fq_name_str):
if specified_fip_pool_fq_name_str == None:
return None
fip_pool_fq_name = get_fip_pool_fq_name_from_dict_string(specified_fip_pool_fq_name_str)
try:
fip_pool_obj = self._vnc_lib.floating_ip_pool_read(fq_name=fip_pool_fq_name)
except NoIdError:
return None
return fip_pool_obj
def _get_fip_pool_obj(self, fip_pool_fq_name):
try:
fip_pool_obj = self._vnc_lib. \
floating_ip_pool_read(fq_name=fip_pool_fq_name)
except NoIdError:
self._logger.error("%s - %s Not Found" \
%(self._name, fip_pool_fq_name))
return None
self._fip_pool_obj = fip_pool_obj
return fip_pool_obj
def _get_floating_ip(self, name, ns_name,
proj_obj, external_ip=None, vmi_obj=None, specified_fip_pool_fq_name_str=None):
fip_pool_fq_name = None
if specified_fip_pool_fq_name_str != None:
fip_pool_fq_name = get_fip_pool_fq_name_from_dict_string(specified_fip_pool_fq_name_str)
if fip_pool_fq_name is None:
ns = self._get_namespace(ns_name)
fip_pool_fq_name = ns.get_annotated_ns_fip_pool_fq_name()
if fip_pool_fq_name is None:
if not vnc_kube_config.is_public_fip_pool_configured():
return None
try:
fip_pool_fq_name = get_fip_pool_fq_name_from_dict_string(
self._args.public_fip_pool)
except Exception as e:
string_buf = StringIO()
cgitb_hook(file=string_buf, format="text")
err_msg = string_buf.getvalue()
self._logger.error("%s - %s" %(self._name, err_msg))
return None
if vmi_obj:
fip_refs = vmi_obj.get_floating_ip_back_refs()
for ref in fip_refs or []:
fip = FloatingIpKM.get(ref['uuid'])
if fip and fip.fq_name[:-1] == fip_pool_fq_name:
return fip
else:
break
fip_pool = self._get_fip_pool_obj(fip_pool_fq_name)
if fip_pool is None:
return None
fip_uuid = str(uuid.uuid4())
fip_name = VncCommon.make_name(name, fip_uuid)
fip_obj = FloatingIp(fip_name, fip_pool)
fip_obj.uuid = fip_uuid
fip_obj.set_project(proj_obj)
if vmi_obj:
fip_obj.set_virtual_machine_interface(vmi_obj)
if external_ip:
fip_obj.floating_ip_address = external_ip
try:
self._vnc_lib.floating_ip_create(fip_obj)
fip = FloatingIpKM.locate(fip_obj.uuid)
except Exception as e:
string_buf = StringIO()
cgitb_hook(file=string_buf, format="text")
err_msg = string_buf.getvalue()
self._logger.error("%s - %s" %(self._name, err_msg))
return None
return fip
def _allocate_floating_ip(self, lb_obj, name, ns_name, proj_obj, external_ip, specified_fip_pool_fq_name_str=None):
vmi_id = lb_obj.virtual_machine_interface_refs[0]['uuid']
vmi_obj = self._vnc_lib.virtual_machine_interface_read(id=vmi_id)
if vmi_obj is None:
self._logger.error("%s - %s Vmi %s Not Found" \
%(self._name, lb_obj.name, vmi_id))
return None
fip = self._get_floating_ip(name, ns_name, proj_obj, external_ip, vmi_obj, specified_fip_pool_fq_name_str)
return fip
def _deallocate_floating_ip(self, lb):
vmi_id = list(lb.virtual_machine_interfaces)[0]
vmi = VirtualMachineInterfaceKM.get(vmi_id)
if vmi is None:
self._logger.error("%s - %s Vmi %s Not Found" \
%(self._name, lb.name, vmi_id))
return
fip_list = vmi.floating_ips.copy()
for fip_id in fip_list or []:
fip_obj = self._vnc_lib.floating_ip_read(id=fip_id)
fip_obj.set_virtual_machine_interface_list([])
self._vnc_lib.floating_ip_update(fip_obj)
self._vnc_lib.floating_ip_delete(id=fip_obj.uuid)
FloatingIpKM.delete(fip_obj.uuid)
def _update_floating_ip(self, name, ns_name, external_ip, lb_obj, specified_fip_pool_fq_name_str=None):
proj_obj = self._get_project(ns_name)
fip = self._allocate_floating_ip(lb_obj,
name, ns_name, proj_obj, external_ip, specified_fip_pool_fq_name_str)
if fip:
lb_obj.add_annotations(
KeyValuePair(key='externalIP', value=external_ip))
self._vnc_lib.loadbalancer_update(lb_obj)
return fip
def _update_kube_api_server(self, name, ns_name, lb_obj, fip):
vip_dict_list = []
if fip:
vip_dict = {}
vip_dict['ip'] = fip.address
vip_dict_list.append(vip_dict)
vip_dict = {}
vip_dict['ip'] = lb_obj._loadbalancer_properties.vip_address
vip_dict_list.append(vip_dict)
patch = {'status': {'loadBalancer': {'ingress': vip_dict_list}}}
self._kube.patch_resource("ingresses", name, patch,
ns_name, beta=True, sub_resource_name='status')
def _find_ingress(self, ingress_cache, ns_name, service_name):
if not ns_name or not service_name:
return
key = 'service'
value = '-'.join([ns_name, service_name])
labels = {key:value}
result = set()
for label in labels.items():
key = self._label_cache._get_key(label)
ingress_ids = ingress_cache.get(key, set())
#no matching label
if not ingress_ids:
return ingress_ids
if not result:
result = ingress_ids.copy()
else:
result.intersection_update(ingress_ids)
return result
def _clear_ingress_cache_uuid(self, ingress_cache, ingress_uuid):
if not ingress_uuid:
return
key_list = [k for k,v in ingress_cache.items() if ingress_uuid in v]
for key in key_list or []:
label = tuple(key.split(':'))
self._label_cache._remove_label(key, ingress_cache, label, ingress_uuid)
def _clear_ingress_cache(self, ingress_cache,
ns_name, service_name, ingress_uuid):
if not ns_name or not service_name:
return
key = 'service'
value = '-'.join([ns_name, service_name])
labels = {key:value}
for label in labels.items() or []:
key = self._label_cache._get_key(label)
self._label_cache._remove_label(key,
ingress_cache, label, ingress_uuid)
def _update_ingress_cache(self, ingress_cache,
ns_name, service_name, ingress_uuid):
if not ns_name or not service_name:
return
key = 'service'
value = '-'.join([ns_name, service_name])
labels = {key:value}
for label in labels.items() or []:
key = self._label_cache._get_key(label)
self._label_cache._locate_label(key,
ingress_cache, label, ingress_uuid)
def _vnc_create_member(self, pool, address, port, annotations):
pool_obj = self.service_lb_pool_mgr.read(pool.uuid)
member_obj = self.service_lb_member_mgr.create(pool_obj,
address, port, annotations)
return member_obj
def _vnc_update_member(self, member_id, address, port, annotations):
member_obj = self.service_lb_member_mgr.update(member_id,
address, port, annotations)
return member_obj
def _vnc_create_pool(self, ns_name, ll, port, lb_algorithm, annotations):
proj_obj = self._get_project(ns_name)
ll_obj = self.service_ll_mgr.read(ll.uuid)
pool_obj = self.service_lb_pool_mgr.create(ll_obj, proj_obj,
port, lb_algorithm, annotations)
return pool_obj
def _vnc_create_listeners(self, ns_name, lb, port):
proj_obj = self._get_project(ns_name)
lb_obj = self.service_lb_mgr.read(lb.uuid)
ll_obj = self.service_ll_mgr.create(lb_obj, proj_obj, port)
return ll_obj
def _vnc_create_lb(self, uid, name, ns_name, annotations):
proj_obj = self._get_project(ns_name)
vn_obj = self._get_network(ns_name)
if proj_obj is None or vn_obj is None:
return None
vip_address = None
pod_ipam_subnet_uuid = self._get_pod_ipam_subnet_uuid(ns_name, vn_obj)
lb_obj = self.service_lb_mgr.create(self._k8s_event_type, ns_name, uid,
name, proj_obj, vn_obj, vip_address, pod_ipam_subnet_uuid,
tags=self._labels.get_labels_dict(uid))
if lb_obj:
external_ip = None
if annotations and 'externalIP' in annotations:
external_ip = annotations['externalIP']
specified_fip_pool_fq_name_str = None
if annotations and 'opencontrail.org/fip-pool' in annotations:
specified_fip_pool_fq_name_str = annotations['opencontrail.org/fip-pool']
fip = self._update_floating_ip(name,
ns_name, external_ip, lb_obj, specified_fip_pool_fq_name_str)
self._update_kube_api_server(name, ns_name, lb_obj, fip)
else:
self._logger.error("%s - %s LB Not Created" %(self._name, name))
return lb_obj
def _vnc_delete_member(self, member_id):
self.service_lb_member_mgr.delete(member_id)
def _vnc_delete_pool(self, pool_id):
self.service_lb_pool_mgr.delete(pool_id)
def _vnc_delete_listener(self, ll_id):
self.service_ll_mgr.delete(ll_id)
def _vnc_delete_lb(self, lb):
self._deallocate_floating_ip(lb)
self.service_lb_mgr.delete(lb.uuid)
def _get_old_backend_list(self, lb):
backend_list = []
listener_list = lb.loadbalancer_listeners
for ll_id in listener_list:
backend = {}
backend['listener_id'] = ll_id
ll = LoadbalancerListenerKM.get(ll_id)
backend['listener'] = {}
backend['listener']['protocol'] = ll.params['protocol']
if backend['listener']['protocol'] == 'TERMINTED_HTTPS':
if ll.params['default_tls_container']:
backend['listener']['default_tls_container'] = \
ll.params['default_tls_container']
if ll.params['sni_containers']:
backend['listener']['sni_containers'] = \
ll.params['sni_containers']
pool_id = ll.loadbalancer_pool
if pool_id:
pool = LoadbalancerPoolKM.get(pool_id)
if pool.annotations is None:
annotations = {}
kvps = []
pool_obj = self._vnc_lib.loadbalancer_pool_read(id=pool_id)
pool_obj_kvp = pool_obj.annotations.key_value_pair
kvps_len = len(pool_obj_kvp)
for count in range(0, kvps_len):
kvp = {}
kvp['key'] = pool_obj_kvp[count].key
kvp['value'] = pool_obj_kvp[count].value
kvps.append(kvp)
annotations['key_value_pair'] = kvps
else:
annotations = pool.annotations
backend['pool_id'] = pool_id
backend['annotations'] = {}
for kvp in annotations['key_value_pair'] or []:
key = kvp['key']
value = kvp['value']
backend['annotations'][key] = value
backend['pool'] = {}
backend['pool']['protocol'] = pool.params['protocol']
backend['member'] = {}
if len(pool.members) == 0:
continue
member_id = list(pool.members)[0]
member = LoadbalancerMemberKM.get(member_id)
if member.annotations is None:
annotations = {}
kvps = []
member_obj = self._vnc_lib. \
loadbalancer_member_read(id=member_id)
member_obj_kvp = member_obj.annotations.key_value_pair
kvps_len = len(member_obj_kvp)
for count in range(0, kvps_len):
kvp = {}
kvp['key'] = member_obj_kvp[count].key
kvp['value'] = member_obj_kvp[count].value
kvps.append(kvp)
annotations['key_value_pair'] = kvps
else:
annotations = member.annotations
backend['member_id'] = member_id
protocol_port = member.params['protocol_port']
for kvp in annotations['key_value_pair'] or []:
if kvp['key'] == 'serviceName':
backend['member']['serviceName'] = kvp['value']
backend['member']['servicePort'] = protocol_port
break
backend_list.append(backend)
return backend_list
def _get_tls_dict(self, spec, ns_name):
tls_dict = {}
if 'tls' in spec:
tls_list = spec['tls']
for tls in tls_list:
if not 'secretName' in tls:
continue
if 'hosts' in tls:
hosts = tls['hosts']
else:
hosts = ['ALL']
for host in hosts:
tls_dict[host] = ns_name + '__' + tls['secretName']
return tls_dict
def _get_new_backend_list(self, spec, ns_name):
tls_dict = self._get_tls_dict(spec, ns_name)
backend_list = []
rules = []
if 'rules' in spec:
rules = spec['rules']
for rule in rules:
if 'http' not in rule:
continue
paths = rule['http']['paths']
for path in paths or []:
backend = {}
backend['annotations'] = {}
backend['listener'] = {}
backend['pool'] = {}
backend['member'] = {}
backend['listener']['protocol'] = 'HTTP'
backend['pool']['protocol'] = 'HTTP'
secretname = ""
virtual_host = False
if 'host' in rule:
host = rule['host']
backend['annotations']['host'] = host
if host in tls_dict.keys():
secretname = tls_dict[host]
virtual_host = True
if 'path' in path:
backend['annotations']['path'] = path['path']
if virtual_host == False and 'ALL' in tls_dict.keys():
secretname = 'ALL'
service = path['backend']
backend['annotations']['type'] = 'acl'
backend['member']['serviceName'] = service['serviceName']
backend['member']['servicePort'] = service['servicePort']
backend_list.append(backend)
if secretname:
backend_https = copy.deepcopy(backend)
backend_https['listener']['protocol'] = 'TERMINATED_HTTPS'
if virtual_host:
backend_https['listener']['sni_containers'] = [secretname]
else:
backend_https['listener']['default_tls_container'] = tls_dict['ALL']
backend_list.append(backend_https)
if 'backend' in spec:
service = spec['backend']
backend = {}
backend['annotations'] = {}
backend['listener'] = {}
backend['pool'] = {}
backend['member'] = {}
backend['listener']['protocol'] = 'HTTP'
backend['pool']['protocol'] = 'HTTP'
backend['annotations']['type'] = 'default'
backend['member']['serviceName'] = service['serviceName']
backend['member']['servicePort'] = service['servicePort']
backend_list.append(backend)
if 'ALL' in tls_dict.keys():
backend_https = copy.deepcopy(backend)
backend_https['listener']['protocol'] = 'TERMINATED_HTTPS'
backend_https['listener']['default_tls_container'] = tls_dict['ALL']
backend_list.append(backend_https)
return backend_list
def _create_member(self, ns_name, backend_member, pool):
resource_type = "services"
service_name = backend_member['serviceName']
service_port = backend_member['servicePort']
service_info = self._kube.get_resource(resource_type,
service_name, ns_name)
member = None
if service_info and 'clusterIP' in service_info['spec']:
service_ip = service_info['spec']['clusterIP']
self._logger.debug("%s - clusterIP for service %s - %s" \
%(self._name, service_name, service_ip))
member_match = False
annotations = {}
annotations['serviceName'] = service_name
for member_id in pool.members:
member = LoadbalancerMemberKM.get(member_id)
if member and member.params['address'] == service_ip \
and member.params['protocol_port'] == service_port:
member_match = True
break
if not member_match:
member_obj = self._vnc_create_member(pool,
service_ip, service_port, annotations)
if member_obj:
member = LoadbalancerMemberKM.locate(member_obj.uuid)
else:
self._logger.error(
"%s - (%s %s) Member Not Created for Pool %s" \
%(self._name, service_name,
str(service_port), pool.name))
else:
self._logger.error("%s - clusterIP for Service %s Not Found" \
%(self._name, service_name))
self._logger.error(
"%s - (%s %s) Member Not Created for Pool %s" \
%(self._name, service_name,
str(service_port), pool.name))
return member
def _update_member(self, ns_name, backend_member, pool):
resource_type = "services"
member_id = backend_member['member_id']
new_service_name = backend_member['serviceName']
new_service_port = backend_member['servicePort']
member = LoadbalancerMemberKM.get(member_id)
annotations = member.annotations
for kvp in annotations['key_value_pair'] or []:
if kvp['key'] == 'serviceName':
old_service_name = kvp['value']
break
old_service_port = member.params['protocol_port']
service_ip = None
if new_service_name != old_service_name:
service_info = self._kube.get_resource(resource_type,
new_service_name, ns_name)
if service_info and 'clusterIP' in service_info['spec']:
service_ip = service_info['spec']['clusterIP']
else:
self._logger.error("%s - clusterIP for Service %s Not Found" \
%(self._name, new_service_name))
self._logger.error(
"%s - (%s %s) Member Not Updated for Pool %s" \
%(self._name, new_service_name,
str(new_service_port), pool.name))
self._vnc_delete_member(member_id)
LoadbalancerMemberKM.delete(member_id)
self._logger.error(
"%s - (%s %s) Member Deleted for Pool %s" \
%(self._name, old_service_name,
str(old_service_port), pool.name))
return None
else:
service_ip = member.params['address']
annotations = {}
annotations['serviceName'] = new_service_name
member_obj = self._vnc_update_member(member_id,
service_ip, new_service_port, annotations)
member = LoadbalancerMemberKM.update(member)
return member
def _create_pool(self, ns_name, ll, port, lb_algorithm, annotations):
pool_id = ll.loadbalancer_pool
pool = LoadbalancerPoolKM.get(pool_id)
if pool is None:
pool_obj = self._vnc_create_pool(ns_name, ll,
port, lb_algorithm, annotations)
pool_id = pool_obj.uuid
pool = LoadbalancerPoolKM.locate(pool_id)
else:
self._logger.error("%s - %s Pool Not Created" \
%(self._name, ll.name))
return pool
def _create_listener(self, ns_name, lb, port):
ll_obj = self._vnc_create_listeners(ns_name, lb, port)
if ll_obj:
ll = LoadbalancerListenerKM.locate(ll_obj.uuid)
else:
self._logger.error("%s - %s Listener for Port %s Not Created" \
%(self._name, lb.name, str(port)))
return ll
def _create_listener_pool_member(self, ns_name, lb, backend):
pool_port = {}
listener_port = {}
listener_port['port'] = '80'
listener_port['protocol'] = backend['listener']['protocol']
if listener_port['protocol'] == 'TERMINATED_HTTPS':
listener_port['port'] = '443'
if 'default_tls_container' in backend['listener']:
listener_port['default_tls_container'] = backend['listener']['default_tls_container']
if 'sni_containers' in backend['listener']:
listener_port['sni_containers'] = backend['listener']['sni_containers']
ll = self._create_listener(ns_name, lb, listener_port)
annotations = {}
for key in backend['annotations']:
annotations[key] = backend['annotations'][key]
lb_algorithm = "ROUND_ROBIN"
pool_port['port'] = '80'
pool_port['protocol'] = backend['pool']['protocol']
pool = self._create_pool(ns_name, ll, pool_port, lb_algorithm, annotations)
backend_member = backend['member']
member = self._create_member(ns_name, backend_member, pool)
if member is None:
self._logger.error("%s - Deleting Listener %s and Pool %s" \
%(self._name, ll.name, pool.name))
self._vnc_delete_pool(pool.uuid)
LoadbalancerPoolKM.delete(pool.uuid)
self._vnc_delete_listener(ll.uuid)
LoadbalancerListenerKM.delete(ll.uuid)
def update_ingress_backend(self, ns_name, service_name, oper):
ingress_ids = self._find_ingress(
self._ingress_label_cache, ns_name, service_name)
for ingress_id in ingress_ids or []:
ingress = IngressKM.get(ingress_id)
lb = LoadbalancerKM.get(ingress_id)
if not ingress or not lb:
continue
if oper == 'ADD':
new_backend_list = self._get_new_backend_list(ingress.spec, ns_name)
for new_backend in new_backend_list[:] or []:
if new_backend['member']['serviceName'] == service_name:
# Create a firewall rule for ingress to this service.
fw_uuid = VncIngress.add_ingress_to_service_rule(ns_name,
ingress.name,
service_name)
lb.add_firewall_rule(fw_uuid)
self._create_listener_pool_member(
ns_name, lb, new_backend)
else:
old_backend_list = self._get_old_backend_list(lb)
for old_backend in old_backend_list[:] or []:
if old_backend['member']['serviceName'] == service_name:
self._delete_listener(old_backend['listener_id'])
# Delete rules created for this ingress to service.
deleted_fw_rule_uuid =\
VncIngress.delete_ingress_to_service_rule(ns_name,
ingress.name,
service_name)
lb.remove_firewall_rule(deleted_fw_rule_uuid)
def _create_lb(self, uid, name, ns_name, event):
annotations = event['object']['metadata'].get('annotations')
ingress_controller = 'opencontrail'
if annotations:
if 'kubernetes.io/ingress.class' in annotations:
ingress_controller = annotations['kubernetes.io/ingress.class']
if ingress_controller != 'opencontrail':
self._logger.warning("%s - ingress controller is not opencontrail for ingress %s"
%(self._name, name))
self._delete_ingress(uid)
return
lb = LoadbalancerKM.get(uid)
if not lb:
lb_obj = self._vnc_create_lb(uid, name, ns_name, annotations)
if lb_obj is None:
return
lb = LoadbalancerKM.locate(uid)
else:
external_ip = None
if annotations and 'externalIP' in annotations:
external_ip = annotations['externalIP']
specified_fip_pool_fq_name_str = None
if annotations and 'opencontrail.org/fip-pool' in annotations:
specified_fip_pool_fq_name_str = annotations['opencontrail.org/fip-pool']
if external_ip != lb.external_ip:
self._deallocate_floating_ip(lb)
lb_obj = self._vnc_lib.loadbalancer_read(id=lb.uuid)
fip = self._update_floating_ip(name, ns_name,
external_ip, lb_obj, specified_fip_pool_fq_name_str)
if fip:
lb.external_ip = external_ip
self._update_kube_api_server(name, ns_name, lb_obj, fip)
self._clear_ingress_cache_uuid(self._ingress_label_cache, uid)
spec = event['object']['spec']
new_backend_list = self._get_new_backend_list(spec, ns_name)
old_backend_list = self._get_old_backend_list(lb)
# find the unchanged backends
for new_backend in new_backend_list[:] or []:
self._update_ingress_cache(self._ingress_label_cache,
ns_name, new_backend['member']['serviceName'], uid)
for old_backend in old_backend_list[:] or []:
if new_backend['annotations'] == old_backend['annotations'] \
and new_backend['listener'] == old_backend['listener'] \
and new_backend['pool'] == old_backend['pool'] \
and new_backend['member'] == old_backend['member']:
# Create a firewall rule for this member.
fw_uuid = VncIngress.add_ingress_to_service_rule(ns_name,
name, new_backend['member']['serviceName'])
lb.add_firewall_rule(fw_uuid)
old_backend_list.remove(old_backend)
new_backend_list.remove(new_backend)
break
if len(old_backend_list) == 0 and len(new_backend_list) == 0:
return lb
# find the updated backends and update
backend_update_list = []
for new_backend in new_backend_list[:] or []:
for old_backend in old_backend_list[:] or []:
if new_backend['annotations'] == old_backend['annotations'] \
and new_backend['listener'] == old_backend['listener'] \
and new_backend['pool'] == old_backend['pool']:
backend = old_backend
backend['member']['member_id'] = \
old_backend['member_id']
backend['member']['serviceName'] = \
new_backend['member']['serviceName']
backend['member']['servicePort'] = \
new_backend['member']['servicePort']
backend_update_list.append(backend)
old_backend_list.remove(old_backend)
new_backend_list.remove(new_backend)
for backend in backend_update_list or []:
ll = LoadbalancerListenerKM.get(backend['listener_id'])
pool = LoadbalancerPoolKM.get(backend['pool_id'])
backend_member = backend['member']
member = self._update_member(ns_name, backend_member, pool)
if member is None:
self._logger.error("%s - Deleting Listener %s and Pool %s" \
%(self._name, ll.name, pool.name))
self._vnc_delete_pool(pool.uuid)
LoadbalancerPoolKM.delete(pool.uuid)
self._vnc_delete_listener(ll.uuid)
LoadbalancerListenerKM.delete(ll.uuid)
if len(old_backend_list) == 0 and len(new_backend_list) == 0:
return lb
# delete the old backends
for backend in old_backend_list or []:
self._delete_listener(backend['listener_id'])
deleted_fw_rule_uuid =\
VncIngress.delete_ingress_to_service_rule(ns_name,
name, backend['member']['serviceName'])
lb.remove_firewall_rule(deleted_fw_rule_uuid)
# create the new backends
for backend in new_backend_list:
# Create a firewall rule for this member.
fw_uuid = VncIngress.add_ingress_to_service_rule(ns_name,
name, backend['member']['serviceName'])
lb.add_firewall_rule(fw_uuid)
self._create_listener_pool_member(ns_name, lb, backend)
return lb
def _delete_all_listeners(self, lb):
listener_list = lb.loadbalancer_listeners.copy()
for ll_id in listener_list:
ll = LoadbalancerListenerKM.get(ll_id)
pool_id = ll.loadbalancer_pool
if pool_id:
pool = LoadbalancerPoolKM.get(pool_id)
member_list = pool.members.copy()
for member_id in member_list:
self._vnc_delete_member(member_id)
LoadbalancerMemberKM.delete(member_id)
self._vnc_delete_pool(pool_id)
LoadbalancerPoolKM.delete(pool_id)
self._vnc_delete_listener(ll_id)
LoadbalancerListenerKM.delete(ll_id)
def _delete_listener(self, ll_id):
ll = LoadbalancerListenerKM.get(ll_id)
pool_id = ll.loadbalancer_pool
if pool_id:
pool = LoadbalancerPoolKM.get(pool_id)
member_list = pool.members.copy()
for member_id in member_list:
self._vnc_delete_member(member_id)
LoadbalancerMemberKM.delete(member_id)
self._vnc_delete_pool(pool_id)
LoadbalancerPoolKM.delete(pool_id)
self._vnc_delete_listener(ll_id)
LoadbalancerListenerKM.delete(ll_id)
def _delete_lb(self, uid):
lb = LoadbalancerKM.get(uid)
if not lb:
return
# Delete rules created for this member.
firewall_rules = set(lb.get_firewall_rules())
for fw_rule_uuid in firewall_rules:
VncIngress.delete_ingress_to_service_rule_by_id(fw_rule_uuid)
lb.remove_firewall_rule(fw_rule_uuid)
self._delete_all_listeners(lb)
self._vnc_delete_lb(lb)
LoadbalancerKM.delete(uid)
def _update_ingress(self, name, uid, event):
ns_name = event['object']['metadata'].get('namespace')
self._create_lb(uid, name, ns_name, event)
def _delete_ingress(self, uid):
self._delete_lb(uid)
self._clear_ingress_cache_uuid(self._ingress_label_cache, uid)
def _create_ingress_event(self, event_type, ingress_id, lb):
event = {}
object = {}
object['kind'] = 'Ingress'
object['spec'] = {}
object['metadata'] = {}
object['metadata']['uid'] = ingress_id
if event_type == 'delete':
event['type'] = 'DELETED'
event['object'] = object
self._queue.put(event)
return
def _sync_ingress_lb(self):
lb_uuid_set = set(LoadbalancerKM.keys())
ingress_uuid_set = set(IngressKM.keys())
deleted_ingress_set = lb_uuid_set - ingress_uuid_set
for uuid in deleted_ingress_set:
lb = LoadbalancerKM.get(uuid)
if not lb:
continue
if not lb.annotations:
continue
owner = None
kind = None
cluster = None
for kvp in lb.annotations['key_value_pair'] or []:
if kvp['key'] == 'cluster':
cluster = kvp['value']
elif kvp['key'] == 'owner':
owner = kvp['value']
elif kvp['key'] == 'kind':
kind = kvp['value']
if cluster == vnc_kube_config.cluster_name() and \
owner == 'k8s' and \
kind == self._k8s_event_type:
self._create_ingress_event('delete', uuid, lb)
break
return
def ingress_timer(self):
self._sync_ingress_lb()
@classmethod
def get_ingress_label_name(self, ns_name, name):
return "-".join([vnc_kube_config.cluster_name(), ns_name, name])
def process(self, event):
event_type = event['type']
kind = event['object'].get('kind')
ns_name = event['object']['metadata'].get('namespace')
name = event['object']['metadata'].get('name')
uid = event['object']['metadata'].get('uid')
print("%s - Got %s %s %s:%s:%s"
%(self._name, event_type, kind, ns_name, name, uid))
self._logger.debug("%s - Got %s %s %s:%s:%s"
%(self._name, event_type, kind, ns_name, name, uid))
if event['type'] == 'ADDED' or event['type'] == 'MODIFIED':
#
# Construct and add labels for this ingress.
# Following labels are added by infra:
#
# 1. A label for the ingress object.
# 2. A label for the namespace of ingress object.
#
labels = self._labels.get_ingress_label(
self.get_ingress_label_name(ns_name, name))
labels.update(self._labels.get_namespace_label(ns_name))
self._labels.process(uid, labels)
self._update_ingress(name, uid, event)
elif event['type'] == 'DELETED':
# Dis-associate infra labels from refernced VMI's.
self.remove_ingress_labels(ns_name, name)
self._delete_ingress(uid)
# Delete labels added by infra for this ingress.
self._labels.process(uid)
else:
self._logger.warning(
'Unknown event type: "{}" Ignoring'.format(event['type']))
def remove_ingress_labels(self, ns_name, name):
"""
Remove ingress infra label/tag from VMI's corresponding to the services of
this ingress.
For each ingress service, kube-manager will create a infra label to add
rules that allow traffic from ingress VMI to backend service VMI's.
Ingress is a special case where tags created by kube-manager are attached
to VMI's that are not created/managed by kube-manager. Since the ingress
label/tag is being deleted, dis-associate this tag from all VMI's on which
it is referred.
"""
if not self.tag_mgr or not ns_name or not name:
return
# Get labels for this ingress service.
labels = self._labels.get_ingress_label(
self.get_ingress_label_name(ns_name, name))
for type, value in labels.iteritems():
tag_obj = self.tag_mgr.read(type, value)
if tag_obj:
vmi_refs = tag_obj.get_virtual_machine_interface_back_refs()
for vmi in vmi_refs if vmi_refs else []:
vmi_obj = self._vnc_lib.virtual_machine_interface_read(id=vmi['uuid'])
self._vnc_lib.unset_tag(vmi_obj, type)
def create_ingress_security_policy(self):
"""
Create a FW policy to house all ingress-to-service rules.
"""
if not VncSecurityPolicy.ingress_svc_fw_policy_uuid:
VncSecurityPolicy.ingress_svc_fw_policy_uuid =\
VncSecurityPolicy.create_firewall_policy(self._k8s_event_type,
None, None, is_global=True)
VncSecurityPolicy.add_firewall_policy(
VncSecurityPolicy.ingress_svc_fw_policy_uuid)
@classmethod
def _get_ingress_firewall_rule_name(cls, ns_name, ingress_name, svc_name):
return "-".join([vnc_kube_config.cluster_name(),
"Ingress",
ns_name,
ingress_name,
svc_name])
@classmethod
def add_ingress_to_service_rule(cls, ns_name, ingress_name, service_name):
"""
Add a ingress-to-service allow rule to ingress firewall policy.
"""
if VncSecurityPolicy.ingress_svc_fw_policy_uuid:
ingress_labels = XLabelCache.get_ingress_label(
cls.get_ingress_label_name(ns_name, ingress_name))
service_labels = XLabelCache.get_service_label(service_name)
rule_name = VncIngress._get_ingress_firewall_rule_name(
ns_name, ingress_name, service_name)
fw_rule_uuid = VncSecurityPolicy.create_firewall_rule_allow_all(
rule_name,
service_labels,
ingress_labels)
VncSecurityPolicy.add_firewall_rule(
VncSecurityPolicy.ingress_svc_fw_policy_uuid,
fw_rule_uuid)
return fw_rule_uuid
@classmethod
def delete_ingress_to_service_rule(cls, ns_name, ingress_name,
service_name):
"""
Delete the ingress-to-service allow rule added to ingress firewall
policy.
"""
rule_uuid = None
if VncSecurityPolicy.ingress_svc_fw_policy_uuid: