aboutsummaryrefslogtreecommitdiffstats
path: root/appc-provider/appc-provider-model/src/main/yang/appc-provider-lcm.yang
blob: 2e369fae3727b575fe0b2ea87c5e5e7b7aa8a2f6 (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
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
/*-
 * ============LICENSE_START=======================================================
 * ONAP : APPC
 * ================================================================================
 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Copyright (C) 2017 Amdocs
 * ================================================================================
 * Modifications Copyright (C) 2018 Orange
 * =============================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 * ============LICENSE_END=========================================================
 */

/*
 * Yang model for the Application Controller (APP-C) component of ECOMP
 *
 * This model is used to define the data and services of the Application Controller
 * component of ECOMP.  The APP-C controller initiates the processing of directed
 * graphs, which define the actual process implementations used.  The name of the
 * directed graph is set by properties and cannot be changed dynamically.
 *
 * The services exposed by this provider are:
 *
 * restart-vnf:
 *    Used to request a restart of a virtual network function (a VM).
 *
 * rebuild-vnf:
 *    Used to request a rebuild of a virtual network function (a VM).
 *
 */

module appc-provider-lcm {

    yang-version 1;
    namespace "org:onap:appc:lcm";
    prefix appc-provider-lcm;
        
    description
      "Defines the services and request/response requirements for the ECOMP APP-C component.";

    /*
     * Note, the revision changes the package name of the generated java code.  Do not
     * change the revision unless you also update all references to the bindings.
     */
    revision "2016-01-08" {
      description
        "APP-C interface version 1.0.48";
    }

    /**********************************************************************************
     * Data type definitions
     *
     * The following data type definitions are used to define common data structures,
     * define constraints, or to impart special meanings to data objects related to the
     * APP-C controller functions.
     **********************************************************************************/

    typedef ZULU {
        description "Define a common definition of a time stamp (expressed as a formatted
                string) as follows yyyy-MM-ddTHH:mm:ss.SSSSSSSSZ";
        type string {
            length "16..28";
            pattern "[0-9]{4}-[0-9]{1,2}-[0-9]{1,2}T[0-9]{1,2}:[0-9]{1,2}:[0-9]{1,2}.[0-9]{1,6}Z";
        }
    }

    typedef payload {
           type string ;
           description "The payload can be any valid JSON string value. Json escape characters need to be added when required to include an inner json within the payload to make it a valid json string value";
    }

    typedef action {
        type enumeration {
            enum "Restart";
            enum "Rebuild";
            enum "Migrate";
            enum "Evacuate";
            enum "Snapshot";
            enum "Rollback";
            enum "Sync";
            enum "Audit";
            enum "Stop";
            enum "Start";
            enum "Terminate";
            enum "SoftwareUpload";
            enum "HealthCheck";
            enum "LiveUpgrade";
            enum "Lock";
            enum "Unlock";
            enum "Test";
            enum "CheckLock";
            enum "Configure";
            enum "ConfigModify";
            enum "ConfigScaleOut";
            enum "ConfigRestore";
            enum "ConfigBackup";
            enum "ConfigBackupDelete";
            enum "ConfigExport";
            enum "StopApplication";
            enum "StartApplication";
            enum "QuiesceTraffic";
            enum "ResumeTraffic";
            enum "UpgradePreCheck";
            enum "UpgradeSoftware";
            enum "UpgradePostCheck";
            enum "UpgradeBackup";
            enum "UpgradeBackout";
            enum "ActionStatus";
            enum "Query";
            enum "Reboot";
            enum "AttachVolume";
            enum "DetachVolume";
            enum "DistributeTraffic";
            
        }
        description "The action to be taken by APP-C, e.g. Restart, Rebuild, Migrate";
    }

    typedef vm-state {
        description "The state of a VM";
        type enumeration {
            enum "active";
            enum "standby";
            enum "inactive";
            enum "unknown";
        }
    }

    typedef vm-status {
        description "The status of a VM";
        type enumeration {
            enum "healthy";
            enum "unhealthy";
            enum "unknown";
        }
    }


    /**********************************************************************************
     * Basic manipulation of a VNF (or VM) will typically include querying the current
     * state, restarting, rebuilding, stopping, starting, etc.  In all of these basic
     * "state"-type operations, the services require the identification of the VNF to
     * be operated on, and the region or LCP that contains that resource.  This
     * information is used across all of these services, so it has been defined as a
     * common structure here and is referenced in the appropriate RPC definitions.
     **********************************************************************************/
    

    /**********************************************************************************
     * All requests will include this standard header
     *
     * The standard request header is used to define a correlation identification for
     * the request that is returned on all responses.  This correlation identifier
     * (called the service-request-id) is meaningful to the caller and is included on
     * all responses from the services.
     **********************************************************************************/

    /**********************************************************************************
     * All responses will include this standard header
     *
     * The standard response header includes the time of completion as well as a
     * success|failure indication
     **********************************************************************************/

    grouping common-header {
        description "A common header for all APP-C requests";
        container common-header {
            description "A common header for all APP-C requests";
            leaf timestamp {
                description "timestamp is in ISO 8601 timestamp format ZULU offset";
                type ZULU;
                mandatory true;
            }

            leaf api-ver {
                description "api-ver is the API version identifier. A given release of APPC
                                should support all previous versions of APPC API (correlate with
                                general requirements)";
                type string {
                    pattern "[2]\.\d\d" {
                        error-message "API Version 2.XX is supported at this end point";
                    }
                }
                mandatory true;
            }

            leaf originator-id {
                description "originator-id an identifier of the calling system which can be
                                used addressing purposes, i.e. returning asynchronous response
                                to the proper destination over DMaaP (especially in case of multiple
                                consumers of APP-C APIs)";
                type string;
                mandatory true;
            }

            leaf request-id {
                description "UUID for the request ID. An OSS/BSS identifier for the request
                                that caused the current action. Multiple API calls may be made
                                with the same request-id The request-id shall be recorded throughout
                                the operations on a single request";
                type string;
                mandatory true;
            }

            leaf sub-request-id {
                description "Uniquely identifies a specific LCM action. It is persistent over
                                the life-cycle of a single request";
                type string;
                mandatory false;
            }


            /**********************************************************************************
             * Flags are generic flags that apply to any and all commands, all are optional
             *  force = TRUE/FALSE - Execute command even if target is in unstable (i.e. locked, transiting, etc)
             *                       state. Specific behaviour of forced commands varies, but implies cancellation
             *                       of previous command and an override by the new command. The FALSE value is
             *                       used by default.
             *  ttl = <0....N> - The timeout value for command execution, expressed in seconds
             *  mode = EXCLUSIVE/NORMAL - defines execution mode as follows:
             *        - EXCLUSIVE ? on encountering an exclusive command, the APP-C will:
             *          * Cease accepting additional command requests
             *          * Complete execution of outstanding commands
             *          * Execute the exclusive command to completion
             *          * Optionally report the result of the command
             *          * Optionally resume command acceptance and processing
             *        - NORMAL - Obverse of EXCLUSIVE, the default one.
             **********************************************************************************/
            container flags {
                description "Flags are generic flags that apply to any and all commands, all are optional";
                leaf mode {
                    type enumeration {
                        enum "EXCLUSIVE";
                        enum "NORMAL";
                    }
                    description "EXCLUSIVE (accept no queued requests on this VNF while processing)
                                        or NORMAL (queue other requests until complete)";
                    mandatory false;
                }
                leaf force {
                    type enumeration {
                        enum "TRUE";
                        enum "FALSE";
                    }
                    description "TRUE/FALSE - Execute action even if target is in unstable (i.e.
                                        locked, transiting, etc.) state";
                    mandatory false;
                }
                leaf ttl {
                    description "<0....N> - The timeout value (expressed in seconds) for action
                                        execution, between action being received by APPC and action initiation";
                    type uint16;
                    mandatory false;
                }
            }
        }
    }


    grouping action-identifiers {
        description "A block containing the action arguments. These are used to specify
                the object upon which APP-C LCM command is to operate";
        container action-identifiers {
            description "A block containing the action arguments. These are used to specify
                        the object upon which APP-C LCM command is to operate";
            leaf service-instance-id {
                description "identifies a specific service the command refers to. When multiple
                                APP-C instances are used and applied to a subset of services,
                                this will become significant . The field is mandatory when the
                                vnf-id is empty";
                type string;
                mandatory false;
            }
            leaf vnf-id {
                description "identifies the VNF to which this action is to be applied(vnf-id
                                uniquely identifies the service-instance referred to). Note that
                                some actions are applied to multiple VNFs in the same service.
                                When this is the case, vnf-id may be left out, but service-instance-id
                                must appear. The field is mandatory when service-instance-id is
                                empty";
                type string;
                mandatory false;
            }
            leaf vf-module-id {
                description "identifies the VF module to which this action is to be applied.";
                type string;
                mandatory false;
            }
            leaf vnfc-name {
                description "identifies the VNFC to which this action is to be applied. Some
                                actions apply only to a component within a VNF (e.g. RESTART is
                                sometimes applied to on VM only). In such a case, the name of
                                the VNFC is used to search for the component within the VNF";
                type string;
                mandatory false;
            }
            leaf vserver-id {
                description "identifies a specific VM within the given service/vnf to which
                                this action is to be applied";
                type string;
                mandatory false;
            }
        }
    }


     grouping status {
            description "The specific response codes are to be aligned with SDC reference doc
                         (main table removed to avoid duplication and digression from main table).
                         See SDC and ECOMP Distribution Consumer Interface Agreement";
            container status {
                description "The specific response codes are to be aligned with SDC reference doc
                             (main table removed to avoid duplication and digression from main table).
                             See SDC and ECOMP Distribution Consumer Interface Agreement";
                leaf code {
                    description "Response code";
                    type uint16;
                    mandatory true;
                }
                leaf message {
                    description "Response message";
                    type string;
                    mandatory true;
                }
            }
      }

     typedef lcm-action-status {
         type enumeration {
                 enum "IN_PROGRESS";
                 enum "SUCCESSFUL";
                 enum "FAILED";
                 enum "NOT_FOUND";
                 enum "ABORTED";
                 enum "MULTIPLE_REQUESTS_FOUND";
         }
         description "The status of the requested LCM action";
     }

    /**********************************************************************************
     * Define the restart service
     **********************************************************************************/
    rpc restart {
        description "An operation to restart a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
                 leaf payload {
                 type payload;
                 mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the rebuild service
     **********************************************************************************/
    rpc rebuild {
        description "An operation to rebuild a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
            type payload;
            mandatory false;
        }
    }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the migrate service
     **********************************************************************************/
    rpc migrate {
        description "An operation to migrate a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the evacuate service
     **********************************************************************************/
    rpc evacuate {
        description "An operation to evacuate a virtual network function (or VM)";
         input {
             uses common-header;
             leaf action {
                 type action;
                  mandatory true;
             }
             uses action-identifiers;
             leaf payload {
                 type payload;
                 mandatory false;
             }
         }
         output {
             uses common-header;
             uses status;
         }
    }

    /**********************************************************************************
     * Define the snapshot service
     **********************************************************************************/
    rpc snapshot {
        description "An operation to create a snapshot of a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
             }
              uses action-identifiers;
              leaf payload {
                  type payload;
                  mandatory false;
              }
              leaf identity-url {
                  type string;
                  mandatory true;
              }
        }
        output {
            uses common-header;
            uses status;
            leaf snapshot-id {
                type string;
            }
        }
    }
    /**********************************************************************************
     * Define the VNF quiesce traffic service
     **********************************************************************************/
    rpc quiesce-traffic {
        description "An operation to stop traffic gracefully on the VF.
                     It stops traffic gracefully without stopping the application";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory true;
           }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the VNF resume traffic service
     **********************************************************************************/
    rpc resume-traffic {
        description "An operation to resume traffic gracefully on the VF.
                     It resumes traffic gracefully without stopping the application";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory true;
           }
    }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the VNF UpgradePreCheck service
     **********************************************************************************/
    rpc upgrade-pre-check {
        description "An operation to check that the VNF has the correct software version needed for a software upgrade.";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory true;
           }
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                type payload;
                mandatory true;
                    }
        }
    }

    /**********************************************************************************
     * Define the VNF UpgradeSoftware service
     **********************************************************************************/
    rpc upgrade-software {
        description "An operation to upgrade the target VNF to a new version and expected that the VNF is in a quiesced status .";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory true;
           }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the VNF UpgradePostCheck service
     **********************************************************************************/
    rpc upgrade-post-check {
        description "An operation to check the VNF upgrade has been successful completed and all processes are running properly.";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory true;
           }
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                type payload;
                mandatory true;
                         }
        }
    }

    /**********************************************************************************
     * Define the VNF UpgradeBackup service
     **********************************************************************************/
    rpc upgrade-backup {
        description "An operation to do full backup of the VNF data prior to an upgrade.";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory true;
           }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the VNF UpgradeBackout service
     **********************************************************************************/
    rpc upgrade-backout {
        description "An operation does a backout after an UpgradeSoftware is completed (either successfully or unsuccessfully).";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory true;
           }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the rollback service
     **********************************************************************************/
    rpc rollback {
        description "An operation to rollback to particular snapshot of a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                 mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
            leaf identity-url {
                type string;
                mandatory true;
            }
            leaf snapshot-id {
                type string;
                 mandatory true;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }


    /**********************************************************************************
     * Additional RPCs added here...
     **********************************************************************************/


    /**********************************************************************************
     * Define the sync service
     **********************************************************************************/
    rpc sync {
        description "An operation to sync the configurations of a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                       type action;
                       mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                type payload;
                mandatory false;
           }
        }
    }

    /**********************************************************************************
     * Define the terminate service
     **********************************************************************************/
    rpc terminate {
        description "An operation to terminate the configurations of a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                       type action;
                       mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                        type payload;
                        mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }


    rpc configure {
        description "An operation to configure the configurations of a virtual network
                function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                 type payload;
                 mandatory false;
            }
        }
    }

    rpc config-modify {
        description "Use the ModifyConfig command when a full configuration cycle is either not required
                     or is considered too costly. The ModifyConfig LCM action affects only a subset of the
                     total configuration data of a VNF. The set of configuration parameters to be affected
                     is a subset of the total configuration data of the target VNF type. The payload Stop
                     Application must contain the configuration parameters to be modified and their values.
                     A successful modify returns a success response. A failed modify returns a failure
                     response and the specific failure messages in the response payload Stop Application";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                 type payload;
                 mandatory false;
            }
        }
    }

    rpc config-scale-out {
            description "An operation to Modify the configuration or other action to support
            a ConfigScaleOut of a VNF.";
            input {
                uses common-header;
                leaf action {
                    type action;
                    mandatory true;
                }
                uses action-identifiers;
                leaf payload {
                    type payload;
                    mandatory true;
                }
            }
            output {
                uses common-header;
                uses status;
                leaf payload {
                     type payload;
                     mandatory false;
                }
            }
        }

    rpc config-restore {
        description "An operation to restore the configurations of a virtual network
                function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                 type payload;
                 mandatory false;
            }
        }
    }

    /**********************************************************************************
     * Define the test service
     **********************************************************************************/
    rpc test {
        description "An operation to test the configurations of a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                       type action;
                       mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                        type payload;
                        mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the stop service
     **********************************************************************************/
    rpc stop {
        description "An operation to stop the configurations of a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    rpc start {
        description "An operation to start a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the audit service
     **********************************************************************************/
    rpc audit {
        description "An operation to audit the configurations of a virtual network function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
    }

    /**********************************************************************************
     * Define the SoftwareUpload vSCP service
     **********************************************************************************/
    rpc software-upload {
        description "An operation to upload a new version of vSCP image to vSCP for updating it";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the PreHealthCheck vSCP service
     **********************************************************************************/
    rpc health-check {
        description "An operation to perform health check of vSCP prior its upgrading";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                type payload;
                mandatory true;
                         }

        }
    }


    /**********************************************************************************
     * Define the Upgrade vSCP service
     **********************************************************************************/
    rpc live-upgrade {
        description "An operation to perform upgrade of vSCP";
        input {
            uses common-header;
            leaf action {
                 type action;
                 mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                 type payload;
                 mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }


    /**********************************************************************************
     * Define the VNF lock service
     **********************************************************************************/
    rpc lock {
         description "An operation to perform VNF lock operation";
          input {
              uses common-header;
               leaf action {
                   type action;
                   mandatory true;
               }
               uses action-identifiers;
               leaf payload {
                   type payload;
                   mandatory false;
               }
          }
          output {
              uses common-header;
              uses status;
          }
    }

    /**********************************************************************************
     * Define the VNF unlock service
     **********************************************************************************/
    rpc unlock {
        description "An operation to perform VNF unlock operation";
         input {
             uses common-header;
             leaf action {
                 type action;
                 mandatory true;
             }
             uses action-identifiers;
             leaf payload {
                 type payload;
                 mandatory false;
             }
         }
         output {
             uses common-header;
             uses status;
         }
    }

    /**********************************************************************************
     * Define the VNF check lock service
     **********************************************************************************/
    rpc check-lock {
        description "An operation to check VNF lock status";
        input {
            uses common-header;
            leaf action {
                       type action;
                       mandatory true;
            }
            uses action-identifiers;
        }
        output {
            uses common-header;
            uses status;
            leaf locked {
                type enumeration {
                            enum "TRUE";
                            enum "FALSE";
                       }
                description "TRUE/FALSE - returns TRUE when the given VNF was locked, otherwise returns FALSE";
                mandatory false;
            }
        }
    }


    rpc config-backup {
        description "An operation to Backup configurations of a virtual network function
                (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                 type payload;
                 mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                 type payload;
                 mandatory false;
            }
        }
    }

    rpc config-backup-delete {
        description "An operation to Delete backup configurations of a virtual network
                function (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
        }
        output {
            uses common-header;
            uses status;
            leaf payload {
                 type payload;
                 mandatory false;
            }
        }
    }

    rpc config-export {
        description "An operation to Export configurations of a virtual network function
                (or VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
        }
        output {
            uses common-header;
            uses status;
        }
    }
    rpc stop-application {
            description "An operation to Stop Application traffic to a virtual network function";
            input {
                uses common-header;
                leaf action {
                    type action;
                    mandatory true;
                }
                uses action-identifiers;
                leaf payload {
                     type payload;
                     mandatory false;
                }
            }
            output {
                uses common-header;
                uses status;
            }
        }

    /**********************************************************************************
     * Define the VNF Start Application service
     **********************************************************************************/
    rpc start-application {
        description "An operation to perform VNF Start Application operation";
        input {
            uses common-header;
            leaf action {
                type action;
                 mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }


    /**********************************************************************************
     * Gets the current state of the previously submitted LCM request
     **********************************************************************************/
    rpc action-status {
        description "An operation to get the current state of the previously submitted LCM request";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
        }
        output {
           uses common-header;
           uses status;
           leaf payload {
                type payload;
           }
        }
    }

    /**********************************************************************************
     * Define the VNF Query service
     **********************************************************************************/
    rpc query {
        description "An operation to query the status of a targe VNF.
                     Returns information on each VM, including state (active or standby)
                     and status (healthy or unhealthy)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
        }
        output {
            uses common-header;
            uses status;
            list query-results {
                leaf vserver-id {
                    description "Identifier of a VM";
                    type string;
                    mandatory true;
                }
                leaf vm-state {
                    description "The state of the VM";
                    type vm-state;
                    mandatory true;
                }
                leaf vm-status {
                    description "the status of the VM";
                    type vm-status;
                    mandatory true;
                }
            }
        }
    }

    /**********************************************************************************
     * Define the Reboot service
     **********************************************************************************/
    rpc reboot {
        description "An operation to reboot a specified virtual machine (VM)";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory false;
            }
         }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the VM attach volume service
     **********************************************************************************/
    rpc attach-volume {
        description "An operation to attach a cinder volume to a VM";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                 type payload;
                 mandatory true;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the VM detach volume service
     **********************************************************************************/
    rpc detach-volume {
        description "An operation to detach a cinder volume from a VM";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                 type payload;
                 mandatory true;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }

    /**********************************************************************************
     * Define the traffic distribution service
     **********************************************************************************/
    rpc distribute-traffic {
        description "An operation to distribute traffic between VMs";
        input {
            uses common-header;
            leaf action {
                type action;
                mandatory true;
            }
            uses action-identifiers;
            leaf payload {
                type payload;
                mandatory true;
            }
        }
        output {
            uses common-header;
            uses status;
        }
    }



 /**********************************************************************************
     * Additional RPCs added here...
 **********************************************************************************/
}