google-cloud-googleapis 0.16.1

Google Cloud Platform rust client.
Documentation
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
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
// Copyright 2024 Google LLC
//
// 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.

syntax = "proto3";

package google.spanner.admin.instance.v1;

import "google/api/annotations.proto";
import "google/api/client.proto";
import "google/api/field_behavior.proto";
import "google/api/resource.proto";
import "google/iam/v1/iam_policy.proto";
import "google/iam/v1/policy.proto";
import "google/longrunning/operations.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/field_mask.proto";
import "google/protobuf/timestamp.proto";
import "google/spanner/admin/instance/v1/common.proto";

option csharp_namespace = "Google.Cloud.Spanner.Admin.Instance.V1";
option go_package = "cloud.google.com/go/spanner/admin/instance/apiv1/instancepb;instancepb";
option java_multiple_files = true;
option java_outer_classname = "SpannerInstanceAdminProto";
option java_package = "com.google.spanner.admin.instance.v1";
option php_namespace = "Google\\Cloud\\Spanner\\Admin\\Instance\\V1";
option ruby_package = "Google::Cloud::Spanner::Admin::Instance::V1";

// Cloud Spanner Instance Admin API
//
// The Cloud Spanner Instance Admin API can be used to create, delete,
// modify and list instances. Instances are dedicated Cloud Spanner serving
// and storage resources to be used by Cloud Spanner databases.
//
// Each instance has a "configuration", which dictates where the
// serving resources for the Cloud Spanner instance are located (e.g.,
// US-central, Europe). Configurations are created by Google based on
// resource availability.
//
// Cloud Spanner billing is based on the instances that exist and their
// sizes. After an instance exists, there are no additional
// per-database or per-operation charges for use of the instance
// (though there may be additional network bandwidth charges).
// Instances offer isolation: problems with databases in one instance
// will not affect other instances. However, within an instance
// databases can affect each other. For example, if one database in an
// instance receives a lot of requests and consumes most of the
// instance resources, fewer resources are available for other
// databases in that instance, and their performance may suffer.
service InstanceAdmin {
  option (google.api.default_host) = "spanner.googleapis.com";
  option (google.api.oauth_scopes) =
      "https://www.googleapis.com/auth/cloud-platform,"
      "https://www.googleapis.com/auth/spanner.admin";

  // Lists the supported instance configurations for a given project.
  rpc ListInstanceConfigs(ListInstanceConfigsRequest)
      returns (ListInstanceConfigsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*}/instanceConfigs"
    };
    option (google.api.method_signature) = "parent";
  }

  // Gets information about a particular instance configuration.
  rpc GetInstanceConfig(GetInstanceConfigRequest) returns (InstanceConfig) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/instanceConfigs/*}"
    };
    option (google.api.method_signature) = "name";
  }

  // Creates an instance configuration and begins preparing it to be used. The
  // returned [long-running operation][google.longrunning.Operation]
  // can be used to track the progress of preparing the new
  // instance configuration. The instance configuration name is assigned by the
  // caller. If the named instance configuration already exists,
  // `CreateInstanceConfig` returns `ALREADY_EXISTS`.
  //
  // Immediately after the request returns:
  //
  //   * The instance configuration is readable via the API, with all requested
  //     attributes. The instance configuration's
  //     [reconciling][google.spanner.admin.instance.v1.InstanceConfig.reconciling]
  //     field is set to true. Its state is `CREATING`.
  //
  // While the operation is pending:
  //
  //   * Cancelling the operation renders the instance configuration immediately
  //     unreadable via the API.
  //   * Except for deleting the creating resource, all other attempts to modify
  //     the instance configuration are rejected.
  //
  // Upon completion of the returned operation:
  //
  //   * Instances can be created using the instance configuration.
  //   * The instance configuration's
  //   [reconciling][google.spanner.admin.instance.v1.InstanceConfig.reconciling]
  //   field becomes false. Its state becomes `READY`.
  //
  // The returned [long-running operation][google.longrunning.Operation] will
  // have a name of the format
  // `<instance_config_name>/operations/<operation_id>` and can be used to track
  // creation of the instance configuration. The
  // [metadata][google.longrunning.Operation.metadata] field type is
  // [CreateInstanceConfigMetadata][google.spanner.admin.instance.v1.CreateInstanceConfigMetadata].
  // The [response][google.longrunning.Operation.response] field type is
  // [InstanceConfig][google.spanner.admin.instance.v1.InstanceConfig], if
  // successful.
  //
  // Authorization requires `spanner.instanceConfigs.create` permission on
  // the resource
  // [parent][google.spanner.admin.instance.v1.CreateInstanceConfigRequest.parent].
  rpc CreateInstanceConfig(CreateInstanceConfigRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      post: "/v1/{parent=projects/*}/instanceConfigs"
      body: "*"
    };
    option (google.api.method_signature) =
        "parent,instance_config,instance_config_id";
    option (google.longrunning.operation_info) = {
      response_type: "google.spanner.admin.instance.v1.InstanceConfig"
      metadata_type: "google.spanner.admin.instance.v1.CreateInstanceConfigMetadata"
    };
  }

  // Updates an instance configuration. The returned
  // [long-running operation][google.longrunning.Operation] can be used to track
  // the progress of updating the instance. If the named instance configuration
  // does not exist, returns `NOT_FOUND`.
  //
  // Only user-managed configurations can be updated.
  //
  // Immediately after the request returns:
  //
  //   * The instance configuration's
  //     [reconciling][google.spanner.admin.instance.v1.InstanceConfig.reconciling]
  //     field is set to true.
  //
  // While the operation is pending:
  //
  //   * Cancelling the operation sets its metadata's
  //     [cancel_time][google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata.cancel_time].
  //     The operation is guaranteed to succeed at undoing all changes, after
  //     which point it terminates with a `CANCELLED` status.
  //   * All other attempts to modify the instance configuration are rejected.
  //   * Reading the instance configuration via the API continues to give the
  //     pre-request values.
  //
  // Upon completion of the returned operation:
  //
  //   * Creating instances using the instance configuration uses the new
  //     values.
  //   * The new values of the instance configuration are readable via the API.
  //   * The instance configuration's
  //   [reconciling][google.spanner.admin.instance.v1.InstanceConfig.reconciling]
  //   field becomes false.
  //
  // The returned [long-running operation][google.longrunning.Operation] will
  // have a name of the format
  // `<instance_config_name>/operations/<operation_id>` and can be used to track
  // the instance configuration modification.  The
  // [metadata][google.longrunning.Operation.metadata] field type is
  // [UpdateInstanceConfigMetadata][google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata].
  // The [response][google.longrunning.Operation.response] field type is
  // [InstanceConfig][google.spanner.admin.instance.v1.InstanceConfig], if
  // successful.
  //
  // Authorization requires `spanner.instanceConfigs.update` permission on
  // the resource [name][google.spanner.admin.instance.v1.InstanceConfig.name].
  rpc UpdateInstanceConfig(UpdateInstanceConfigRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      patch: "/v1/{instance_config.name=projects/*/instanceConfigs/*}"
      body: "*"
    };
    option (google.api.method_signature) = "instance_config,update_mask";
    option (google.longrunning.operation_info) = {
      response_type: "google.spanner.admin.instance.v1.InstanceConfig"
      metadata_type: "google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata"
    };
  }

  // Deletes the instance configuration. Deletion is only allowed when no
  // instances are using the configuration. If any instances are using
  // the configuration, returns `FAILED_PRECONDITION`.
  //
  // Only user-managed configurations can be deleted.
  //
  // Authorization requires `spanner.instanceConfigs.delete` permission on
  // the resource [name][google.spanner.admin.instance.v1.InstanceConfig.name].
  rpc DeleteInstanceConfig(DeleteInstanceConfigRequest)
      returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete: "/v1/{name=projects/*/instanceConfigs/*}"
    };
    option (google.api.method_signature) = "name";
  }

  // Lists the user-managed instance configuration [long-running
  // operations][google.longrunning.Operation] in the given project. An instance
  // configuration operation has a name of the form
  // `projects/<project>/instanceConfigs/<instance_config>/operations/<operation>`.
  // The long-running operation
  // [metadata][google.longrunning.Operation.metadata] field type
  // `metadata.type_url` describes the type of the metadata. Operations returned
  // include those that have completed/failed/canceled within the last 7 days,
  // and pending operations. Operations returned are ordered by
  // `operation.metadata.value.start_time` in descending order starting
  // from the most recently started operation.
  rpc ListInstanceConfigOperations(ListInstanceConfigOperationsRequest)
      returns (ListInstanceConfigOperationsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*}/instanceConfigOperations"
    };
    option (google.api.method_signature) = "parent";
  }

  // Lists all instances in the given project.
  rpc ListInstances(ListInstancesRequest) returns (ListInstancesResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*}/instances"
    };
    option (google.api.method_signature) = "parent";
  }

  // Lists all instance partitions for the given instance.
  rpc ListInstancePartitions(ListInstancePartitionsRequest)
      returns (ListInstancePartitionsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/instances/*}/instancePartitions"
    };
    option (google.api.method_signature) = "parent";
  }

  // Gets information about a particular instance.
  rpc GetInstance(GetInstanceRequest) returns (Instance) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/instances/*}"
    };
    option (google.api.method_signature) = "name";
  }

  // Creates an instance and begins preparing it to begin serving. The
  // returned [long-running operation][google.longrunning.Operation]
  // can be used to track the progress of preparing the new
  // instance. The instance name is assigned by the caller. If the
  // named instance already exists, `CreateInstance` returns
  // `ALREADY_EXISTS`.
  //
  // Immediately upon completion of this request:
  //
  //   * The instance is readable via the API, with all requested attributes
  //     but no allocated resources. Its state is `CREATING`.
  //
  // Until completion of the returned operation:
  //
  //   * Cancelling the operation renders the instance immediately unreadable
  //     via the API.
  //   * The instance can be deleted.
  //   * All other attempts to modify the instance are rejected.
  //
  // Upon completion of the returned operation:
  //
  //   * Billing for all successfully-allocated resources begins (some types
  //     may have lower than the requested levels).
  //   * Databases can be created in the instance.
  //   * The instance's allocated resource levels are readable via the API.
  //   * The instance's state becomes `READY`.
  //
  // The returned [long-running operation][google.longrunning.Operation] will
  // have a name of the format `<instance_name>/operations/<operation_id>` and
  // can be used to track creation of the instance.  The
  // [metadata][google.longrunning.Operation.metadata] field type is
  // [CreateInstanceMetadata][google.spanner.admin.instance.v1.CreateInstanceMetadata].
  // The [response][google.longrunning.Operation.response] field type is
  // [Instance][google.spanner.admin.instance.v1.Instance], if successful.
  rpc CreateInstance(CreateInstanceRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      post: "/v1/{parent=projects/*}/instances"
      body: "*"
    };
    option (google.api.method_signature) = "parent,instance_id,instance";
    option (google.longrunning.operation_info) = {
      response_type: "google.spanner.admin.instance.v1.Instance"
      metadata_type: "google.spanner.admin.instance.v1.CreateInstanceMetadata"
    };
  }

  // Updates an instance, and begins allocating or releasing resources
  // as requested. The returned [long-running
  // operation][google.longrunning.Operation] can be used to track the
  // progress of updating the instance. If the named instance does not
  // exist, returns `NOT_FOUND`.
  //
  // Immediately upon completion of this request:
  //
  //   * For resource types for which a decrease in the instance's allocation
  //     has been requested, billing is based on the newly-requested level.
  //
  // Until completion of the returned operation:
  //
  //   * Cancelling the operation sets its metadata's
  //     [cancel_time][google.spanner.admin.instance.v1.UpdateInstanceMetadata.cancel_time],
  //     and begins restoring resources to their pre-request values. The
  //     operation is guaranteed to succeed at undoing all resource changes,
  //     after which point it terminates with a `CANCELLED` status.
  //   * All other attempts to modify the instance are rejected.
  //   * Reading the instance via the API continues to give the pre-request
  //     resource levels.
  //
  // Upon completion of the returned operation:
  //
  //   * Billing begins for all successfully-allocated resources (some types
  //     may have lower than the requested levels).
  //   * All newly-reserved resources are available for serving the instance's
  //     tables.
  //   * The instance's new resource levels are readable via the API.
  //
  // The returned [long-running operation][google.longrunning.Operation] will
  // have a name of the format `<instance_name>/operations/<operation_id>` and
  // can be used to track the instance modification.  The
  // [metadata][google.longrunning.Operation.metadata] field type is
  // [UpdateInstanceMetadata][google.spanner.admin.instance.v1.UpdateInstanceMetadata].
  // The [response][google.longrunning.Operation.response] field type is
  // [Instance][google.spanner.admin.instance.v1.Instance], if successful.
  //
  // Authorization requires `spanner.instances.update` permission on
  // the resource [name][google.spanner.admin.instance.v1.Instance.name].
  rpc UpdateInstance(UpdateInstanceRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      patch: "/v1/{instance.name=projects/*/instances/*}"
      body: "*"
    };
    option (google.api.method_signature) = "instance,field_mask";
    option (google.longrunning.operation_info) = {
      response_type: "google.spanner.admin.instance.v1.Instance"
      metadata_type: "google.spanner.admin.instance.v1.UpdateInstanceMetadata"
    };
  }

  // Deletes an instance.
  //
  // Immediately upon completion of the request:
  //
  //   * Billing ceases for all of the instance's reserved resources.
  //
  // Soon afterward:
  //
  //   * The instance and *all of its databases* immediately and
  //     irrevocably disappear from the API. All data in the databases
  //     is permanently deleted.
  rpc DeleteInstance(DeleteInstanceRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete: "/v1/{name=projects/*/instances/*}"
    };
    option (google.api.method_signature) = "name";
  }

  // Sets the access control policy on an instance resource. Replaces any
  // existing policy.
  //
  // Authorization requires `spanner.instances.setIamPolicy` on
  // [resource][google.iam.v1.SetIamPolicyRequest.resource].
  rpc SetIamPolicy(google.iam.v1.SetIamPolicyRequest)
      returns (google.iam.v1.Policy) {
    option (google.api.http) = {
      post: "/v1/{resource=projects/*/instances/*}:setIamPolicy"
      body: "*"
    };
    option (google.api.method_signature) = "resource,policy";
  }

  // Gets the access control policy for an instance resource. Returns an empty
  // policy if an instance exists but does not have a policy set.
  //
  // Authorization requires `spanner.instances.getIamPolicy` on
  // [resource][google.iam.v1.GetIamPolicyRequest.resource].
  rpc GetIamPolicy(google.iam.v1.GetIamPolicyRequest)
      returns (google.iam.v1.Policy) {
    option (google.api.http) = {
      post: "/v1/{resource=projects/*/instances/*}:getIamPolicy"
      body: "*"
    };
    option (google.api.method_signature) = "resource";
  }

  // Returns permissions that the caller has on the specified instance resource.
  //
  // Attempting this RPC on a non-existent Cloud Spanner instance resource will
  // result in a NOT_FOUND error if the user has `spanner.instances.list`
  // permission on the containing Google Cloud Project. Otherwise returns an
  // empty set of permissions.
  rpc TestIamPermissions(google.iam.v1.TestIamPermissionsRequest)
      returns (google.iam.v1.TestIamPermissionsResponse) {
    option (google.api.http) = {
      post: "/v1/{resource=projects/*/instances/*}:testIamPermissions"
      body: "*"
    };
    option (google.api.method_signature) = "resource,permissions";
  }

  // Gets information about a particular instance partition.
  rpc GetInstancePartition(GetInstancePartitionRequest)
      returns (InstancePartition) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/instances/*/instancePartitions/*}"
    };
    option (google.api.method_signature) = "name";
  }

  // Creates an instance partition and begins preparing it to be used. The
  // returned [long-running operation][google.longrunning.Operation]
  // can be used to track the progress of preparing the new instance partition.
  // The instance partition name is assigned by the caller. If the named
  // instance partition already exists, `CreateInstancePartition` returns
  // `ALREADY_EXISTS`.
  //
  // Immediately upon completion of this request:
  //
  //   * The instance partition is readable via the API, with all requested
  //     attributes but no allocated resources. Its state is `CREATING`.
  //
  // Until completion of the returned operation:
  //
  //   * Cancelling the operation renders the instance partition immediately
  //     unreadable via the API.
  //   * The instance partition can be deleted.
  //   * All other attempts to modify the instance partition are rejected.
  //
  // Upon completion of the returned operation:
  //
  //   * Billing for all successfully-allocated resources begins (some types
  //     may have lower than the requested levels).
  //   * Databases can start using this instance partition.
  //   * The instance partition's allocated resource levels are readable via the
  //     API.
  //   * The instance partition's state becomes `READY`.
  //
  // The returned [long-running operation][google.longrunning.Operation] will
  // have a name of the format
  // `<instance_partition_name>/operations/<operation_id>` and can be used to
  // track creation of the instance partition.  The
  // [metadata][google.longrunning.Operation.metadata] field type is
  // [CreateInstancePartitionMetadata][google.spanner.admin.instance.v1.CreateInstancePartitionMetadata].
  // The [response][google.longrunning.Operation.response] field type is
  // [InstancePartition][google.spanner.admin.instance.v1.InstancePartition], if
  // successful.
  rpc CreateInstancePartition(CreateInstancePartitionRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      post: "/v1/{parent=projects/*/instances/*}/instancePartitions"
      body: "*"
    };
    option (google.api.method_signature) =
        "parent,instance_partition,instance_partition_id";
    option (google.longrunning.operation_info) = {
      response_type: "google.spanner.admin.instance.v1.InstancePartition"
      metadata_type: "google.spanner.admin.instance.v1.CreateInstancePartitionMetadata"
    };
  }

  // Deletes an existing instance partition. Requires that the
  // instance partition is not used by any database or backup and is not the
  // default instance partition of an instance.
  //
  // Authorization requires `spanner.instancePartitions.delete` permission on
  // the resource
  // [name][google.spanner.admin.instance.v1.InstancePartition.name].
  rpc DeleteInstancePartition(DeleteInstancePartitionRequest)
      returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete: "/v1/{name=projects/*/instances/*/instancePartitions/*}"
    };
    option (google.api.method_signature) = "name";
  }

  // Updates an instance partition, and begins allocating or releasing resources
  // as requested. The returned [long-running
  // operation][google.longrunning.Operation] can be used to track the
  // progress of updating the instance partition. If the named instance
  // partition does not exist, returns `NOT_FOUND`.
  //
  // Immediately upon completion of this request:
  //
  //   * For resource types for which a decrease in the instance partition's
  //   allocation has been requested, billing is based on the newly-requested
  //   level.
  //
  // Until completion of the returned operation:
  //
  //   * Cancelling the operation sets its metadata's
  //     [cancel_time][google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata.cancel_time],
  //     and begins restoring resources to their pre-request values. The
  //     operation is guaranteed to succeed at undoing all resource changes,
  //     after which point it terminates with a `CANCELLED` status.
  //   * All other attempts to modify the instance partition are rejected.
  //   * Reading the instance partition via the API continues to give the
  //     pre-request resource levels.
  //
  // Upon completion of the returned operation:
  //
  //   * Billing begins for all successfully-allocated resources (some types
  //     may have lower than the requested levels).
  //   * All newly-reserved resources are available for serving the instance
  //     partition's tables.
  //   * The instance partition's new resource levels are readable via the API.
  //
  // The returned [long-running operation][google.longrunning.Operation] will
  // have a name of the format
  // `<instance_partition_name>/operations/<operation_id>` and can be used to
  // track the instance partition modification. The
  // [metadata][google.longrunning.Operation.metadata] field type is
  // [UpdateInstancePartitionMetadata][google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata].
  // The [response][google.longrunning.Operation.response] field type is
  // [InstancePartition][google.spanner.admin.instance.v1.InstancePartition], if
  // successful.
  //
  // Authorization requires `spanner.instancePartitions.update` permission on
  // the resource
  // [name][google.spanner.admin.instance.v1.InstancePartition.name].
  rpc UpdateInstancePartition(UpdateInstancePartitionRequest)
      returns (google.longrunning.Operation) {
    option (google.api.http) = {
      patch: "/v1/{instance_partition.name=projects/*/instances/*/instancePartitions/*}"
      body: "*"
    };
    option (google.api.method_signature) = "instance_partition,field_mask";
    option (google.longrunning.operation_info) = {
      response_type: "google.spanner.admin.instance.v1.InstancePartition"
      metadata_type: "google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata"
    };
  }

  // Lists instance partition [long-running
  // operations][google.longrunning.Operation] in the given instance.
  // An instance partition operation has a name of the form
  // `projects/<project>/instances/<instance>/instancePartitions/<instance_partition>/operations/<operation>`.
  // The long-running operation
  // [metadata][google.longrunning.Operation.metadata] field type
  // `metadata.type_url` describes the type of the metadata. Operations returned
  // include those that have completed/failed/canceled within the last 7 days,
  // and pending operations. Operations returned are ordered by
  // `operation.metadata.value.start_time` in descending order starting from the
  // most recently started operation.
  //
  // Authorization requires `spanner.instancePartitionOperations.list`
  // permission on the resource
  // [parent][google.spanner.admin.instance.v1.ListInstancePartitionOperationsRequest.parent].
  rpc ListInstancePartitionOperations(ListInstancePartitionOperationsRequest)
      returns (ListInstancePartitionOperationsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/instances/*}/instancePartitionOperations"
    };
    option (google.api.method_signature) = "parent";
  }

  // Moves an instance to the target instance configuration. You can use the
  // returned [long-running operation][google.longrunning.Operation] to track
  // the progress of moving the instance.
  //
  // `MoveInstance` returns `FAILED_PRECONDITION` if the instance meets any of
  // the following criteria:
  //
  //   * Is undergoing a move to a different instance configuration
  //   * Has backups
  //   * Has an ongoing update
  //   * Contains any CMEK-enabled databases
  //   * Is a free trial instance
  //
  // While the operation is pending:
  //
  //   * All other attempts to modify the instance, including changes to its
  //     compute capacity, are rejected.
  //   * The following database and backup admin operations are rejected:
  //
  //     * `DatabaseAdmin.CreateDatabase`
  //     * `DatabaseAdmin.UpdateDatabaseDdl` (disabled if default_leader is
  //        specified in the request.)
  //     * `DatabaseAdmin.RestoreDatabase`
  //     * `DatabaseAdmin.CreateBackup`
  //     * `DatabaseAdmin.CopyBackup`
  //
  //   * Both the source and target instance configurations are subject to
  //     hourly compute and storage charges.
  //   * The instance might experience higher read-write latencies and a higher
  //     transaction abort rate. However, moving an instance doesn't cause any
  //     downtime.
  //
  // The returned [long-running operation][google.longrunning.Operation] has
  // a name of the format
  // `<instance_name>/operations/<operation_id>` and can be used to track
  // the move instance operation. The
  // [metadata][google.longrunning.Operation.metadata] field type is
  // [MoveInstanceMetadata][google.spanner.admin.instance.v1.MoveInstanceMetadata].
  // The [response][google.longrunning.Operation.response] field type is
  // [Instance][google.spanner.admin.instance.v1.Instance],
  // if successful.
  // Cancelling the operation sets its metadata's
  // [cancel_time][google.spanner.admin.instance.v1.MoveInstanceMetadata.cancel_time].
  // Cancellation is not immediate because it involves moving any data
  // previously moved to the target instance configuration back to the original
  // instance configuration. You can use this operation to track the progress of
  // the cancellation. Upon successful completion of the cancellation, the
  // operation terminates with `CANCELLED` status.
  //
  // If not cancelled, upon completion of the returned operation:
  //
  //   * The instance successfully moves to the target instance
  //     configuration.
  //   * You are billed for compute and storage in target instance
  //   configuration.
  //
  // Authorization requires the `spanner.instances.update` permission on
  // the resource [instance][google.spanner.admin.instance.v1.Instance].
  //
  // For more details, see
  // [Move an instance](https://cloud.google.com/spanner/docs/move-instance).
  rpc MoveInstance(MoveInstanceRequest) returns (google.longrunning.Operation) {
    option (google.api.http) = {
      post: "/v1/{name=projects/*/instances/*}:move"
      body: "*"
    };
    option (google.longrunning.operation_info) = {
      response_type: "google.spanner.admin.instance.v1.MoveInstanceResponse"
      metadata_type: "google.spanner.admin.instance.v1.MoveInstanceMetadata"
    };
  }
}

message ReplicaInfo {
  // Indicates the type of replica.  See the [replica types
  // documentation](https://cloud.google.com/spanner/docs/replication#replica_types)
  // for more details.
  enum ReplicaType {
    // Not specified.
    TYPE_UNSPECIFIED = 0;

    // Read-write replicas support both reads and writes. These replicas:
    //
    // * Maintain a full copy of your data.
    // * Serve reads.
    // * Can vote whether to commit a write.
    // * Participate in leadership election.
    // * Are eligible to become a leader.
    READ_WRITE = 1;

    // Read-only replicas only support reads (not writes). Read-only replicas:
    //
    // * Maintain a full copy of your data.
    // * Serve reads.
    // * Do not participate in voting to commit writes.
    // * Are not eligible to become a leader.
    READ_ONLY = 2;

    // Witness replicas don't support reads but do participate in voting to
    // commit writes. Witness replicas:
    //
    // * Do not maintain a full copy of data.
    // * Do not serve reads.
    // * Vote whether to commit writes.
    // * Participate in leader election but are not eligible to become leader.
    WITNESS = 3;
  }

  // The location of the serving resources, e.g. "us-central1".
  string location = 1;

  // The type of replica.
  ReplicaType type = 2;

  // If true, this location is designated as the default leader location where
  // leader replicas are placed. See the [region types
  // documentation](https://cloud.google.com/spanner/docs/instances#region_types)
  // for more details.
  bool default_leader_location = 3;
}

// A possible configuration for a Cloud Spanner instance. Configurations
// define the geographic placement of nodes and their replication.
message InstanceConfig {
  option (google.api.resource) = {
    type: "spanner.googleapis.com/InstanceConfig"
    pattern: "projects/{project}/instanceConfigs/{instance_config}"
  };

  // The type of this configuration.
  enum Type {
    // Unspecified.
    TYPE_UNSPECIFIED = 0;

    // Google managed configuration.
    GOOGLE_MANAGED = 1;

    // User managed configuration.
    USER_MANAGED = 2;
  }

  // Indicates the current state of the instance configuration.
  enum State {
    // Not specified.
    STATE_UNSPECIFIED = 0;

    // The instance configuration is still being created.
    CREATING = 1;

    // The instance configuration is fully created and ready to be used to
    // create instances.
    READY = 2;
  }

  // A unique identifier for the instance configuration.  Values
  // are of the form
  // `projects/<project>/instanceConfigs/[a-z][-a-z0-9]*`.
  //
  // User instance configuration must start with `custom-`.
  string name = 1;

  // The name of this instance configuration as it appears in UIs.
  string display_name = 2;

  // Output only. Whether this instance configuration is a Google-managed or
  // user-managed configuration.
  Type config_type = 5 [(google.api.field_behavior) = OUTPUT_ONLY];

  // The geographic placement of nodes in this instance configuration and their
  // replication properties.
  repeated ReplicaInfo replicas = 3;

  // Output only. The available optional replicas to choose from for user
  // managed configurations. Populated for Google managed configurations.
  repeated ReplicaInfo optional_replicas = 6
      [(google.api.field_behavior) = OUTPUT_ONLY];

  // Base configuration name, e.g. projects/<project_name>/instanceConfigs/nam3,
  // based on which this configuration is created. Only set for user managed
  // configurations. `base_config` must refer to a configuration of type
  // GOOGLE_MANAGED in the same project as this configuration.
  string base_config = 7 [(google.api.resource_reference) = {
    type: "spanner.googleapis.com/InstanceConfig"
  }];

  // Cloud Labels are a flexible and lightweight mechanism for organizing cloud
  // resources into groups that reflect a customer's organizational needs and
  // deployment strategies. Cloud Labels can be used to filter collections of
  // resources. They can be used to control how resource metrics are aggregated.
  // And they can be used as arguments to policy management rules (e.g. route,
  // firewall, load balancing, etc.).
  //
  //  * Label keys must be between 1 and 63 characters long and must conform to
  //    the following regular expression: `[a-z][a-z0-9_-]{0,62}`.
  //  * Label values must be between 0 and 63 characters long and must conform
  //    to the regular expression `[a-z0-9_-]{0,63}`.
  //  * No more than 64 labels can be associated with a given resource.
  //
  // See https://goo.gl/xmQnxf for more information on and examples of labels.
  //
  // If you plan to use labels in your own code, please note that additional
  // characters may be allowed in the future. Therefore, you are advised to use
  // an internal label representation, such as JSON, which doesn't rely upon
  // specific characters being disallowed.  For example, representing labels
  // as the string:  name + "_" + value  would prove problematic if we were to
  // allow "_" in a future release.
  map<string, string> labels = 8;

  // etag is used for optimistic concurrency control as a way
  // to help prevent simultaneous updates of a instance configuration from
  // overwriting each other. It is strongly suggested that systems make use of
  // the etag in the read-modify-write cycle to perform instance configuration
  // updates in order to avoid race conditions: An etag is returned in the
  // response which contains instance configurations, and systems are expected
  // to put that etag in the request to update instance configuration to ensure
  // that their change is applied to the same version of the instance
  // configuration. If no etag is provided in the call to update the instance
  // configuration, then the existing instance configuration is overwritten
  // blindly.
  string etag = 9;

  // Allowed values of the "default_leader" schema option for databases in
  // instances that use this instance configuration.
  repeated string leader_options = 4;

  // Output only. If true, the instance configuration is being created or
  // updated. If false, there are no ongoing operations for the instance
  // configuration.
  bool reconciling = 10 [(google.api.field_behavior) = OUTPUT_ONLY];

  // Output only. The current instance configuration state. Applicable only for
  // `USER_MANAGED` configurations.
  State state = 11 [(google.api.field_behavior) = OUTPUT_ONLY];
}

// Autoscaling configuration for an instance.
message AutoscalingConfig {
  // The autoscaling limits for the instance. Users can define the minimum and
  // maximum compute capacity allocated to the instance, and the autoscaler will
  // only scale within that range. Users can either use nodes or processing
  // units to specify the limits, but should use the same unit to set both the
  // min_limit and max_limit.
  message AutoscalingLimits {
    // The minimum compute capacity for the instance.
    oneof min_limit {
      // Minimum number of nodes allocated to the instance. If set, this number
      // should be greater than or equal to 1.
      int32 min_nodes = 1;

      // Minimum number of processing units allocated to the instance. If set,
      // this number should be multiples of 1000.
      int32 min_processing_units = 2;
    }

    // The maximum compute capacity for the instance. The maximum compute
    // capacity should be less than or equal to 10X the minimum compute
    // capacity.
    oneof max_limit {
      // Maximum number of nodes allocated to the instance. If set, this number
      // should be greater than or equal to min_nodes.
      int32 max_nodes = 3;

      // Maximum number of processing units allocated to the instance. If set,
      // this number should be multiples of 1000 and be greater than or equal to
      // min_processing_units.
      int32 max_processing_units = 4;
    }
  }

  // The autoscaling targets for an instance.
  message AutoscalingTargets {
    // Required. The target high priority cpu utilization percentage that the
    // autoscaler should be trying to achieve for the instance. This number is
    // on a scale from 0 (no utilization) to 100 (full utilization). The valid
    // range is [10, 90] inclusive.
    int32 high_priority_cpu_utilization_percent = 1
        [(google.api.field_behavior) = REQUIRED];

    // Required. The target storage utilization percentage that the autoscaler
    // should be trying to achieve for the instance. This number is on a scale
    // from 0 (no utilization) to 100 (full utilization). The valid range is
    // [10, 100] inclusive.
    int32 storage_utilization_percent = 2
        [(google.api.field_behavior) = REQUIRED];
  }

  // Required. Autoscaling limits for an instance.
  AutoscalingLimits autoscaling_limits = 1
      [(google.api.field_behavior) = REQUIRED];

  // Required. The autoscaling targets for an instance.
  AutoscalingTargets autoscaling_targets = 2
      [(google.api.field_behavior) = REQUIRED];
}

// An isolated set of Cloud Spanner resources on which databases can be hosted.
message Instance {
  option (google.api.resource) = {
    type: "spanner.googleapis.com/Instance"
    pattern: "projects/{project}/instances/{instance}"
  };

  // Indicates the current state of the instance.
  enum State {
    // Not specified.
    STATE_UNSPECIFIED = 0;

    // The instance is still being created. Resources may not be
    // available yet, and operations such as database creation may not
    // work.
    CREATING = 1;

    // The instance is fully created and ready to do work such as
    // creating databases.
    READY = 2;
  }

  // The edition selected for this instance. Different editions provide
  // different capabilities at different price points.
  enum Edition {
    // Edition not specified.
    EDITION_UNSPECIFIED = 0;

    // Standard edition.
    STANDARD = 1;

    // Enterprise edition.
    ENTERPRISE = 2;

    // Enterprise Plus edition.
    ENTERPRISE_PLUS = 3;
  }

  // Required. A unique identifier for the instance, which cannot be changed
  // after the instance is created. Values are of the form
  // `projects/<project>/instances/[a-z][-a-z0-9]*[a-z0-9]`. The final
  // segment of the name must be between 2 and 64 characters in length.
  string name = 1 [(google.api.field_behavior) = REQUIRED];

  // Required. The name of the instance's configuration. Values are of the form
  // `projects/<project>/instanceConfigs/<configuration>`. See
  // also [InstanceConfig][google.spanner.admin.instance.v1.InstanceConfig] and
  // [ListInstanceConfigs][google.spanner.admin.instance.v1.InstanceAdmin.ListInstanceConfigs].
  string config = 2 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/InstanceConfig"
    }
  ];

  // Required. The descriptive name for this instance as it appears in UIs.
  // Must be unique per project and between 4 and 30 characters in length.
  string display_name = 3 [(google.api.field_behavior) = REQUIRED];

  // The number of nodes allocated to this instance. At most one of either
  // node_count or processing_units should be present in the message.
  //
  // Users can set the node_count field to specify the target number of nodes
  // allocated to the instance.
  //
  // This may be zero in API responses for instances that are not yet in state
  // `READY`.
  //
  // See [the
  // documentation](https://cloud.google.com/spanner/docs/compute-capacity)
  // for more information about nodes and processing units.
  int32 node_count = 5;

  // The number of processing units allocated to this instance. At most one of
  // processing_units or node_count should be present in the message.
  //
  // Users can set the processing_units field to specify the target number of
  // processing units allocated to the instance.
  //
  // This may be zero in API responses for instances that are not yet in state
  // `READY`.
  //
  // See [the
  // documentation](https://cloud.google.com/spanner/docs/compute-capacity)
  // for more information about nodes and processing units.
  int32 processing_units = 9;

  // Optional. The autoscaling configuration. Autoscaling is enabled if this
  // field is set. When autoscaling is enabled, node_count and processing_units
  // are treated as OUTPUT_ONLY fields and reflect the current compute capacity
  // allocated to the instance.
  AutoscalingConfig autoscaling_config = 17
      [(google.api.field_behavior) = OPTIONAL];

  // Output only. The current instance state. For
  // [CreateInstance][google.spanner.admin.instance.v1.InstanceAdmin.CreateInstance],
  // the state must be either omitted or set to `CREATING`. For
  // [UpdateInstance][google.spanner.admin.instance.v1.InstanceAdmin.UpdateInstance],
  // the state must be either omitted or set to `READY`.
  State state = 6 [(google.api.field_behavior) = OUTPUT_ONLY];

  // Cloud Labels are a flexible and lightweight mechanism for organizing cloud
  // resources into groups that reflect a customer's organizational needs and
  // deployment strategies. Cloud Labels can be used to filter collections of
  // resources. They can be used to control how resource metrics are aggregated.
  // And they can be used as arguments to policy management rules (e.g. route,
  // firewall, load balancing, etc.).
  //
  //  * Label keys must be between 1 and 63 characters long and must conform to
  //    the following regular expression: `[a-z][a-z0-9_-]{0,62}`.
  //  * Label values must be between 0 and 63 characters long and must conform
  //    to the regular expression `[a-z0-9_-]{0,63}`.
  //  * No more than 64 labels can be associated with a given resource.
  //
  // See https://goo.gl/xmQnxf for more information on and examples of labels.
  //
  // If you plan to use labels in your own code, please note that additional
  // characters may be allowed in the future. And so you are advised to use an
  // internal label representation, such as JSON, which doesn't rely upon
  // specific characters being disallowed.  For example, representing labels
  // as the string:  name + "_" + value  would prove problematic if we were to
  // allow "_" in a future release.
  map<string, string> labels = 7;

  // Deprecated. This field is not populated.
  repeated string endpoint_uris = 8;

  // Output only. The time at which the instance was created.
  google.protobuf.Timestamp create_time = 11
      [(google.api.field_behavior) = OUTPUT_ONLY];

  // Output only. The time at which the instance was most recently updated.
  google.protobuf.Timestamp update_time = 12
      [(google.api.field_behavior) = OUTPUT_ONLY];

  // Optional. The `Edition` of the current instance.
  Edition edition = 20 [(google.api.field_behavior) = OPTIONAL];
}

// The request for
// [ListInstanceConfigs][google.spanner.admin.instance.v1.InstanceAdmin.ListInstanceConfigs].
message ListInstanceConfigsRequest {
  // Required. The name of the project for which a list of supported instance
  // configurations is requested. Values are of the form
  // `projects/<project>`.
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "cloudresourcemanager.googleapis.com/Project"
    }
  ];

  // Number of instance configurations to be returned in the response. If 0 or
  // less, defaults to the server's maximum allowed page size.
  int32 page_size = 2;

  // If non-empty, `page_token` should contain a
  // [next_page_token][google.spanner.admin.instance.v1.ListInstanceConfigsResponse.next_page_token]
  // from a previous
  // [ListInstanceConfigsResponse][google.spanner.admin.instance.v1.ListInstanceConfigsResponse].
  string page_token = 3;
}

// The response for
// [ListInstanceConfigs][google.spanner.admin.instance.v1.InstanceAdmin.ListInstanceConfigs].
message ListInstanceConfigsResponse {
  // The list of requested instance configurations.
  repeated InstanceConfig instance_configs = 1;

  // `next_page_token` can be sent in a subsequent
  // [ListInstanceConfigs][google.spanner.admin.instance.v1.InstanceAdmin.ListInstanceConfigs]
  // call to fetch more of the matching instance configurations.
  string next_page_token = 2;
}

// The request for
// [GetInstanceConfigRequest][google.spanner.admin.instance.v1.InstanceAdmin.GetInstanceConfig].
message GetInstanceConfigRequest {
  // Required. The name of the requested instance configuration. Values are of
  // the form `projects/<project>/instanceConfigs/<config>`.
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/InstanceConfig"
    }
  ];
}

// The request for
// [CreateInstanceConfigRequest][InstanceAdmin.CreateInstanceConfigRequest].
message CreateInstanceConfigRequest {
  // Required. The name of the project in which to create the instance
  // configuration. Values are of the form `projects/<project>`.
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "cloudresourcemanager.googleapis.com/Project"
    }
  ];

  // Required. The ID of the instance configuration to create. Valid identifiers
  // are of the form `custom-[-a-z0-9]*[a-z0-9]` and must be between 2 and 64
  // characters in length. The `custom-` prefix is required to avoid name
  // conflicts with Google-managed configurations.
  string instance_config_id = 2 [(google.api.field_behavior) = REQUIRED];

  // Required. The InstanceConfig proto of the configuration to create.
  // instance_config.name must be
  // `<parent>/instanceConfigs/<instance_config_id>`.
  // instance_config.base_config must be a Google managed configuration name,
  // e.g. <parent>/instanceConfigs/us-east1, <parent>/instanceConfigs/nam3.
  InstanceConfig instance_config = 3 [(google.api.field_behavior) = REQUIRED];

  // An option to validate, but not actually execute, a request,
  // and provide the same response.
  bool validate_only = 4;
}

// The request for
// [UpdateInstanceConfigRequest][InstanceAdmin.UpdateInstanceConfigRequest].
message UpdateInstanceConfigRequest {
  // Required. The user instance configuration to update, which must always
  // include the instance configuration name. Otherwise, only fields mentioned
  // in
  // [update_mask][google.spanner.admin.instance.v1.UpdateInstanceConfigRequest.update_mask]
  // need be included. To prevent conflicts of concurrent updates,
  // [etag][google.spanner.admin.instance.v1.InstanceConfig.reconciling] can
  // be used.
  InstanceConfig instance_config = 1 [(google.api.field_behavior) = REQUIRED];

  // Required. A mask specifying which fields in
  // [InstanceConfig][google.spanner.admin.instance.v1.InstanceConfig] should be
  // updated. The field mask must always be specified; this prevents any future
  // fields in [InstanceConfig][google.spanner.admin.instance.v1.InstanceConfig]
  // from being erased accidentally by clients that do not know about them. Only
  // display_name and labels can be updated.
  google.protobuf.FieldMask update_mask = 2
      [(google.api.field_behavior) = REQUIRED];

  // An option to validate, but not actually execute, a request,
  // and provide the same response.
  bool validate_only = 3;
}

// The request for
// [DeleteInstanceConfigRequest][InstanceAdmin.DeleteInstanceConfigRequest].
message DeleteInstanceConfigRequest {
  // Required. The name of the instance configuration to be deleted.
  // Values are of the form
  // `projects/<project>/instanceConfigs/<instance_config>`
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/InstanceConfig"
    }
  ];

  // Used for optimistic concurrency control as a way to help prevent
  // simultaneous deletes of an instance configuration from overwriting each
  // other. If not empty, the API
  // only deletes the instance configuration when the etag provided matches the
  // current status of the requested instance configuration. Otherwise, deletes
  // the instance configuration without checking the current status of the
  // requested instance configuration.
  string etag = 2;

  // An option to validate, but not actually execute, a request,
  // and provide the same response.
  bool validate_only = 3;
}

// The request for
// [ListInstanceConfigOperations][google.spanner.admin.instance.v1.InstanceAdmin.ListInstanceConfigOperations].
message ListInstanceConfigOperationsRequest {
  // Required. The project of the instance configuration operations.
  // Values are of the form `projects/<project>`.
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "cloudresourcemanager.googleapis.com/Project"
    }
  ];

  // An expression that filters the list of returned operations.
  //
  // A filter expression consists of a field name, a
  // comparison operator, and a value for filtering.
  // The value must be a string, a number, or a boolean. The comparison operator
  // must be one of: `<`, `>`, `<=`, `>=`, `!=`, `=`, or `:`.
  // Colon `:` is the contains operator. Filter rules are not case sensitive.
  //
  // The following fields in the [Operation][google.longrunning.Operation]
  // are eligible for filtering:
  //
  //   * `name` - The name of the long-running operation
  //   * `done` - False if the operation is in progress, else true.
  //   * `metadata.@type` - the type of metadata. For example, the type string
  //      for
  //      [CreateInstanceConfigMetadata][google.spanner.admin.instance.v1.CreateInstanceConfigMetadata]
  //      is
  //      `type.googleapis.com/google.spanner.admin.instance.v1.CreateInstanceConfigMetadata`.
  //   * `metadata.<field_name>` - any field in metadata.value.
  //      `metadata.@type` must be specified first, if filtering on metadata
  //      fields.
  //   * `error` - Error associated with the long-running operation.
  //   * `response.@type` - the type of response.
  //   * `response.<field_name>` - any field in response.value.
  //
  // You can combine multiple expressions by enclosing each expression in
  // parentheses. By default, expressions are combined with AND logic. However,
  // you can specify AND, OR, and NOT logic explicitly.
  //
  // Here are a few examples:
  //
  //   * `done:true` - The operation is complete.
  //   * `(metadata.@type=` \
  //     `type.googleapis.com/google.spanner.admin.instance.v1.CreateInstanceConfigMetadata)
  //     AND` \
  //     `(metadata.instance_config.name:custom-config) AND` \
  //     `(metadata.progress.start_time < \"2021-03-28T14:50:00Z\") AND` \
  //     `(error:*)` - Return operations where:
  //     * The operation's metadata type is
  //     [CreateInstanceConfigMetadata][google.spanner.admin.instance.v1.CreateInstanceConfigMetadata].
  //     * The instance configuration name contains "custom-config".
  //     * The operation started before 2021-03-28T14:50:00Z.
  //     * The operation resulted in an error.
  string filter = 2;

  // Number of operations to be returned in the response. If 0 or
  // less, defaults to the server's maximum allowed page size.
  int32 page_size = 3;

  // If non-empty, `page_token` should contain a
  // [next_page_token][google.spanner.admin.instance.v1.ListInstanceConfigOperationsResponse.next_page_token]
  // from a previous
  // [ListInstanceConfigOperationsResponse][google.spanner.admin.instance.v1.ListInstanceConfigOperationsResponse]
  // to the same `parent` and with the same `filter`.
  string page_token = 4;
}

// The response for
// [ListInstanceConfigOperations][google.spanner.admin.instance.v1.InstanceAdmin.ListInstanceConfigOperations].
message ListInstanceConfigOperationsResponse {
  // The list of matching instance configuration [long-running
  // operations][google.longrunning.Operation]. Each operation's name will be
  // prefixed by the name of the instance configuration. The operation's
  // [metadata][google.longrunning.Operation.metadata] field type
  // `metadata.type_url` describes the type of the metadata.
  repeated google.longrunning.Operation operations = 1;

  // `next_page_token` can be sent in a subsequent
  // [ListInstanceConfigOperations][google.spanner.admin.instance.v1.InstanceAdmin.ListInstanceConfigOperations]
  // call to fetch more of the matching metadata.
  string next_page_token = 2;
}

// The request for
// [GetInstance][google.spanner.admin.instance.v1.InstanceAdmin.GetInstance].
message GetInstanceRequest {
  // Required. The name of the requested instance. Values are of the form
  // `projects/<project>/instances/<instance>`.
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/Instance"
    }
  ];

  // If field_mask is present, specifies the subset of
  // [Instance][google.spanner.admin.instance.v1.Instance] fields that should be
  // returned. If absent, all
  // [Instance][google.spanner.admin.instance.v1.Instance] fields are returned.
  google.protobuf.FieldMask field_mask = 2;
}

// The request for
// [CreateInstance][google.spanner.admin.instance.v1.InstanceAdmin.CreateInstance].
message CreateInstanceRequest {
  // Required. The name of the project in which to create the instance. Values
  // are of the form `projects/<project>`.
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "cloudresourcemanager.googleapis.com/Project"
    }
  ];

  // Required. The ID of the instance to create.  Valid identifiers are of the
  // form `[a-z][-a-z0-9]*[a-z0-9]` and must be between 2 and 64 characters in
  // length.
  string instance_id = 2 [(google.api.field_behavior) = REQUIRED];

  // Required. The instance to create.  The name may be omitted, but if
  // specified must be `<parent>/instances/<instance_id>`.
  Instance instance = 3 [(google.api.field_behavior) = REQUIRED];
}

// The request for
// [ListInstances][google.spanner.admin.instance.v1.InstanceAdmin.ListInstances].
message ListInstancesRequest {
  // Required. The name of the project for which a list of instances is
  // requested. Values are of the form `projects/<project>`.
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "cloudresourcemanager.googleapis.com/Project"
    }
  ];

  // Number of instances to be returned in the response. If 0 or less, defaults
  // to the server's maximum allowed page size.
  int32 page_size = 2;

  // If non-empty, `page_token` should contain a
  // [next_page_token][google.spanner.admin.instance.v1.ListInstancesResponse.next_page_token]
  // from a previous
  // [ListInstancesResponse][google.spanner.admin.instance.v1.ListInstancesResponse].
  string page_token = 3;

  // An expression for filtering the results of the request. Filter rules are
  // case insensitive. The fields eligible for filtering are:
  //
  //   * `name`
  //   * `display_name`
  //   * `labels.key` where key is the name of a label
  //
  // Some examples of using filters are:
  //
  //   * `name:*` --> The instance has a name.
  //   * `name:Howl` --> The instance's name contains the string "howl".
  //   * `name:HOWL` --> Equivalent to above.
  //   * `NAME:howl` --> Equivalent to above.
  //   * `labels.env:*` --> The instance has the label "env".
  //   * `labels.env:dev` --> The instance has the label "env" and the value of
  //                        the label contains the string "dev".
  //   * `name:howl labels.env:dev` --> The instance's name contains "howl" and
  //                                  it has the label "env" with its value
  //                                  containing "dev".
  string filter = 4;

  // Deadline used while retrieving metadata for instances.
  // Instances whose metadata cannot be retrieved within this deadline will be
  // added to
  // [unreachable][google.spanner.admin.instance.v1.ListInstancesResponse.unreachable]
  // in
  // [ListInstancesResponse][google.spanner.admin.instance.v1.ListInstancesResponse].
  google.protobuf.Timestamp instance_deadline = 5;
}

// The response for
// [ListInstances][google.spanner.admin.instance.v1.InstanceAdmin.ListInstances].
message ListInstancesResponse {
  // The list of requested instances.
  repeated Instance instances = 1;

  // `next_page_token` can be sent in a subsequent
  // [ListInstances][google.spanner.admin.instance.v1.InstanceAdmin.ListInstances]
  // call to fetch more of the matching instances.
  string next_page_token = 2;

  // The list of unreachable instances.
  // It includes the names of instances whose metadata could not be retrieved
  // within
  // [instance_deadline][google.spanner.admin.instance.v1.ListInstancesRequest.instance_deadline].
  repeated string unreachable = 3;
}

// The request for
// [UpdateInstance][google.spanner.admin.instance.v1.InstanceAdmin.UpdateInstance].
message UpdateInstanceRequest {
  // Required. The instance to update, which must always include the instance
  // name.  Otherwise, only fields mentioned in
  // [field_mask][google.spanner.admin.instance.v1.UpdateInstanceRequest.field_mask]
  // need be included.
  Instance instance = 1 [(google.api.field_behavior) = REQUIRED];

  // Required. A mask specifying which fields in
  // [Instance][google.spanner.admin.instance.v1.Instance] should be updated.
  // The field mask must always be specified; this prevents any future fields in
  // [Instance][google.spanner.admin.instance.v1.Instance] from being erased
  // accidentally by clients that do not know about them.
  google.protobuf.FieldMask field_mask = 2
      [(google.api.field_behavior) = REQUIRED];
}

// The request for
// [DeleteInstance][google.spanner.admin.instance.v1.InstanceAdmin.DeleteInstance].
message DeleteInstanceRequest {
  // Required. The name of the instance to be deleted. Values are of the form
  // `projects/<project>/instances/<instance>`
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/Instance"
    }
  ];
}

// Metadata type for the operation returned by
// [CreateInstance][google.spanner.admin.instance.v1.InstanceAdmin.CreateInstance].
message CreateInstanceMetadata {
  // The instance being created.
  Instance instance = 1;

  // The time at which the
  // [CreateInstance][google.spanner.admin.instance.v1.InstanceAdmin.CreateInstance]
  // request was received.
  google.protobuf.Timestamp start_time = 2;

  // The time at which this operation was cancelled. If set, this operation is
  // in the process of undoing itself (which is guaranteed to succeed) and
  // cannot be cancelled again.
  google.protobuf.Timestamp cancel_time = 3;

  // The time at which this operation failed or was completed successfully.
  google.protobuf.Timestamp end_time = 4;

  // The expected fulfillment period of this create operation.
  FulfillmentPeriod expected_fulfillment_period = 5;
}

// Metadata type for the operation returned by
// [UpdateInstance][google.spanner.admin.instance.v1.InstanceAdmin.UpdateInstance].
message UpdateInstanceMetadata {
  // The desired end state of the update.
  Instance instance = 1;

  // The time at which
  // [UpdateInstance][google.spanner.admin.instance.v1.InstanceAdmin.UpdateInstance]
  // request was received.
  google.protobuf.Timestamp start_time = 2;

  // The time at which this operation was cancelled. If set, this operation is
  // in the process of undoing itself (which is guaranteed to succeed) and
  // cannot be cancelled again.
  google.protobuf.Timestamp cancel_time = 3;

  // The time at which this operation failed or was completed successfully.
  google.protobuf.Timestamp end_time = 4;

  // The expected fulfillment period of this update operation.
  FulfillmentPeriod expected_fulfillment_period = 5;
}

// Metadata type for the operation returned by
// [CreateInstanceConfig][google.spanner.admin.instance.v1.InstanceAdmin.CreateInstanceConfig].
message CreateInstanceConfigMetadata {
  // The target instance configuration end state.
  InstanceConfig instance_config = 1;

  // The progress of the
  // [CreateInstanceConfig][google.spanner.admin.instance.v1.InstanceAdmin.CreateInstanceConfig]
  // operation.
  OperationProgress progress = 2;

  // The time at which this operation was cancelled.
  google.protobuf.Timestamp cancel_time = 3;
}

// Metadata type for the operation returned by
// [UpdateInstanceConfig][google.spanner.admin.instance.v1.InstanceAdmin.UpdateInstanceConfig].
message UpdateInstanceConfigMetadata {
  // The desired instance configuration after updating.
  InstanceConfig instance_config = 1;

  // The progress of the
  // [UpdateInstanceConfig][google.spanner.admin.instance.v1.InstanceAdmin.UpdateInstanceConfig]
  // operation.
  OperationProgress progress = 2;

  // The time at which this operation was cancelled.
  google.protobuf.Timestamp cancel_time = 3;
}

// An isolated set of Cloud Spanner resources that databases can define
// placements on.
message InstancePartition {
  option (google.api.resource) = {
    type: "spanner.googleapis.com/InstancePartition"
    pattern: "projects/{project}/instances/{instance}/instancePartitions/{instance_partition}"
  };

  // Indicates the current state of the instance partition.
  enum State {
    // Not specified.
    STATE_UNSPECIFIED = 0;

    // The instance partition is still being created. Resources may not be
    // available yet, and operations such as creating placements using this
    // instance partition may not work.
    CREATING = 1;

    // The instance partition is fully created and ready to do work such as
    // creating placements and using in databases.
    READY = 2;
  }

  // Required. A unique identifier for the instance partition. Values are of the
  // form
  // `projects/<project>/instances/<instance>/instancePartitions/[a-z][-a-z0-9]*[a-z0-9]`.
  // The final segment of the name must be between 2 and 64 characters in
  // length. An instance partition's name cannot be changed after the instance
  // partition is created.
  string name = 1 [(google.api.field_behavior) = REQUIRED];

  // Required. The name of the instance partition's configuration. Values are of
  // the form `projects/<project>/instanceConfigs/<configuration>`. See also
  // [InstanceConfig][google.spanner.admin.instance.v1.InstanceConfig] and
  // [ListInstanceConfigs][google.spanner.admin.instance.v1.InstanceAdmin.ListInstanceConfigs].
  string config = 2 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/InstanceConfig"
    }
  ];

  // Required. The descriptive name for this instance partition as it appears in
  // UIs. Must be unique per project and between 4 and 30 characters in length.
  string display_name = 3 [(google.api.field_behavior) = REQUIRED];

  // Compute capacity defines amount of server and storage resources that are
  // available to the databases in an instance partition. At most one of either
  // node_count or processing_units should be present in the message. See [the
  // documentation](https://cloud.google.com/spanner/docs/compute-capacity)
  // for more information about nodes and processing units.
  oneof compute_capacity {
    // The number of nodes allocated to this instance partition.
    //
    // Users can set the node_count field to specify the target number of nodes
    // allocated to the instance partition.
    //
    // This may be zero in API responses for instance partitions that are not
    // yet in state `READY`.
    int32 node_count = 5;

    // The number of processing units allocated to this instance partition.
    //
    // Users can set the processing_units field to specify the target number of
    // processing units allocated to the instance partition.
    //
    // This may be zero in API responses for instance partitions that are not
    // yet in state `READY`.
    int32 processing_units = 6;
  }

  // Output only. The current instance partition state.
  State state = 7 [(google.api.field_behavior) = OUTPUT_ONLY];

  // Output only. The time at which the instance partition was created.
  google.protobuf.Timestamp create_time = 8
      [(google.api.field_behavior) = OUTPUT_ONLY];

  // Output only. The time at which the instance partition was most recently
  // updated.
  google.protobuf.Timestamp update_time = 9
      [(google.api.field_behavior) = OUTPUT_ONLY];

  // Output only. The names of the databases that reference this
  // instance partition. Referencing databases should share the parent instance.
  // The existence of any referencing database prevents the instance partition
  // from being deleted.
  repeated string referencing_databases = 10
      [(google.api.field_behavior) = OUTPUT_ONLY];

  // Output only. The names of the backups that reference this instance
  // partition. Referencing backups should share the parent instance. The
  // existence of any referencing backup prevents the instance partition from
  // being deleted.
  repeated string referencing_backups = 11
      [(google.api.field_behavior) = OUTPUT_ONLY];

  // Used for optimistic concurrency control as a way
  // to help prevent simultaneous updates of a instance partition from
  // overwriting each other. It is strongly suggested that systems make use of
  // the etag in the read-modify-write cycle to perform instance partition
  // updates in order to avoid race conditions: An etag is returned in the
  // response which contains instance partitions, and systems are expected to
  // put that etag in the request to update instance partitions to ensure that
  // their change will be applied to the same version of the instance partition.
  // If no etag is provided in the call to update instance partition, then the
  // existing instance partition is overwritten blindly.
  string etag = 12;
}

// Metadata type for the operation returned by
// [CreateInstancePartition][google.spanner.admin.instance.v1.InstanceAdmin.CreateInstancePartition].
message CreateInstancePartitionMetadata {
  // The instance partition being created.
  InstancePartition instance_partition = 1;

  // The time at which the
  // [CreateInstancePartition][google.spanner.admin.instance.v1.InstanceAdmin.CreateInstancePartition]
  // request was received.
  google.protobuf.Timestamp start_time = 2;

  // The time at which this operation was cancelled. If set, this operation is
  // in the process of undoing itself (which is guaranteed to succeed) and
  // cannot be cancelled again.
  google.protobuf.Timestamp cancel_time = 3;

  // The time at which this operation failed or was completed successfully.
  google.protobuf.Timestamp end_time = 4;
}

// The request for
// [CreateInstancePartition][google.spanner.admin.instance.v1.InstanceAdmin.CreateInstancePartition].
message CreateInstancePartitionRequest {
  // Required. The name of the instance in which to create the instance
  // partition. Values are of the form
  // `projects/<project>/instances/<instance>`.
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/Instance"
    }
  ];

  // Required. The ID of the instance partition to create. Valid identifiers are
  // of the form `[a-z][-a-z0-9]*[a-z0-9]` and must be between 2 and 64
  // characters in length.
  string instance_partition_id = 2 [(google.api.field_behavior) = REQUIRED];

  // Required. The instance partition to create. The instance_partition.name may
  // be omitted, but if specified must be
  // `<parent>/instancePartitions/<instance_partition_id>`.
  InstancePartition instance_partition = 3
      [(google.api.field_behavior) = REQUIRED];
}

// The request for
// [DeleteInstancePartition][google.spanner.admin.instance.v1.InstanceAdmin.DeleteInstancePartition].
message DeleteInstancePartitionRequest {
  // Required. The name of the instance partition to be deleted.
  // Values are of the form
  // `projects/{project}/instances/{instance}/instancePartitions/{instance_partition}`
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/InstancePartition"
    }
  ];

  // Optional. If not empty, the API only deletes the instance partition when
  // the etag provided matches the current status of the requested instance
  // partition. Otherwise, deletes the instance partition without checking the
  // current status of the requested instance partition.
  string etag = 2;
}

// The request for
// [GetInstancePartition][google.spanner.admin.instance.v1.InstanceAdmin.GetInstancePartition].
message GetInstancePartitionRequest {
  // Required. The name of the requested instance partition. Values are of
  // the form
  // `projects/{project}/instances/{instance}/instancePartitions/{instance_partition}`.
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/InstancePartition"
    }
  ];
}

// The request for
// [UpdateInstancePartition][google.spanner.admin.instance.v1.InstanceAdmin.UpdateInstancePartition].
message UpdateInstancePartitionRequest {
  // Required. The instance partition to update, which must always include the
  // instance partition name. Otherwise, only fields mentioned in
  // [field_mask][google.spanner.admin.instance.v1.UpdateInstancePartitionRequest.field_mask]
  // need be included.
  InstancePartition instance_partition = 1
      [(google.api.field_behavior) = REQUIRED];

  // Required. A mask specifying which fields in
  // [InstancePartition][google.spanner.admin.instance.v1.InstancePartition]
  // should be updated. The field mask must always be specified; this prevents
  // any future fields in
  // [InstancePartition][google.spanner.admin.instance.v1.InstancePartition]
  // from being erased accidentally by clients that do not know about them.
  google.protobuf.FieldMask field_mask = 2
      [(google.api.field_behavior) = REQUIRED];
}

// Metadata type for the operation returned by
// [UpdateInstancePartition][google.spanner.admin.instance.v1.InstanceAdmin.UpdateInstancePartition].
message UpdateInstancePartitionMetadata {
  // The desired end state of the update.
  InstancePartition instance_partition = 1;

  // The time at which
  // [UpdateInstancePartition][google.spanner.admin.instance.v1.InstanceAdmin.UpdateInstancePartition]
  // request was received.
  google.protobuf.Timestamp start_time = 2;

  // The time at which this operation was cancelled. If set, this operation is
  // in the process of undoing itself (which is guaranteed to succeed) and
  // cannot be cancelled again.
  google.protobuf.Timestamp cancel_time = 3;

  // The time at which this operation failed or was completed successfully.
  google.protobuf.Timestamp end_time = 4;
}

// The request for
// [ListInstancePartitions][google.spanner.admin.instance.v1.InstanceAdmin.ListInstancePartitions].
message ListInstancePartitionsRequest {
  // Required. The instance whose instance partitions should be listed. Values
  // are of the form `projects/<project>/instances/<instance>`.
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/Instance"
    }
  ];

  // Number of instance partitions to be returned in the response. If 0 or less,
  // defaults to the server's maximum allowed page size.
  int32 page_size = 2;

  // If non-empty, `page_token` should contain a
  // [next_page_token][google.spanner.admin.instance.v1.ListInstancePartitionsResponse.next_page_token]
  // from a previous
  // [ListInstancePartitionsResponse][google.spanner.admin.instance.v1.ListInstancePartitionsResponse].
  string page_token = 3;

  // Optional. Deadline used while retrieving metadata for instance partitions.
  // Instance partitions whose metadata cannot be retrieved within this deadline
  // will be added to
  // [unreachable][google.spanner.admin.instance.v1.ListInstancePartitionsResponse.unreachable]
  // in
  // [ListInstancePartitionsResponse][google.spanner.admin.instance.v1.ListInstancePartitionsResponse].
  google.protobuf.Timestamp instance_partition_deadline = 4
      [(google.api.field_behavior) = OPTIONAL];
}

// The response for
// [ListInstancePartitions][google.spanner.admin.instance.v1.InstanceAdmin.ListInstancePartitions].
message ListInstancePartitionsResponse {
  // The list of requested instancePartitions.
  repeated InstancePartition instance_partitions = 1;

  // `next_page_token` can be sent in a subsequent
  // [ListInstancePartitions][google.spanner.admin.instance.v1.InstanceAdmin.ListInstancePartitions]
  // call to fetch more of the matching instance partitions.
  string next_page_token = 2;

  // The list of unreachable instance partitions.
  // It includes the names of instance partitions whose metadata could
  // not be retrieved within
  // [instance_partition_deadline][google.spanner.admin.instance.v1.ListInstancePartitionsRequest.instance_partition_deadline].
  repeated string unreachable = 3;
}

// The request for
// [ListInstancePartitionOperations][google.spanner.admin.instance.v1.InstanceAdmin.ListInstancePartitionOperations].
message ListInstancePartitionOperationsRequest {
  // Required. The parent instance of the instance partition operations.
  // Values are of the form `projects/<project>/instances/<instance>`.
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/Instance"
    }
  ];

  // Optional. An expression that filters the list of returned operations.
  //
  // A filter expression consists of a field name, a
  // comparison operator, and a value for filtering.
  // The value must be a string, a number, or a boolean. The comparison operator
  // must be one of: `<`, `>`, `<=`, `>=`, `!=`, `=`, or `:`.
  // Colon `:` is the contains operator. Filter rules are not case sensitive.
  //
  // The following fields in the [Operation][google.longrunning.Operation]
  // are eligible for filtering:
  //
  //   * `name` - The name of the long-running operation
  //   * `done` - False if the operation is in progress, else true.
  //   * `metadata.@type` - the type of metadata. For example, the type string
  //      for
  //      [CreateInstancePartitionMetadata][google.spanner.admin.instance.v1.CreateInstancePartitionMetadata]
  //      is
  //      `type.googleapis.com/google.spanner.admin.instance.v1.CreateInstancePartitionMetadata`.
  //   * `metadata.<field_name>` - any field in metadata.value.
  //      `metadata.@type` must be specified first, if filtering on metadata
  //      fields.
  //   * `error` - Error associated with the long-running operation.
  //   * `response.@type` - the type of response.
  //   * `response.<field_name>` - any field in response.value.
  //
  // You can combine multiple expressions by enclosing each expression in
  // parentheses. By default, expressions are combined with AND logic. However,
  // you can specify AND, OR, and NOT logic explicitly.
  //
  // Here are a few examples:
  //
  //   * `done:true` - The operation is complete.
  //   * `(metadata.@type=` \
  //     `type.googleapis.com/google.spanner.admin.instance.v1.CreateInstancePartitionMetadata)
  //     AND` \
  //     `(metadata.instance_partition.name:custom-instance-partition) AND` \
  //     `(metadata.start_time < \"2021-03-28T14:50:00Z\") AND` \
  //     `(error:*)` - Return operations where:
  //     * The operation's metadata type is
  //     [CreateInstancePartitionMetadata][google.spanner.admin.instance.v1.CreateInstancePartitionMetadata].
  //     * The instance partition name contains "custom-instance-partition".
  //     * The operation started before 2021-03-28T14:50:00Z.
  //     * The operation resulted in an error.
  string filter = 2 [(google.api.field_behavior) = OPTIONAL];

  // Optional. Number of operations to be returned in the response. If 0 or
  // less, defaults to the server's maximum allowed page size.
  int32 page_size = 3 [(google.api.field_behavior) = OPTIONAL];

  // Optional. If non-empty, `page_token` should contain a
  // [next_page_token][google.spanner.admin.instance.v1.ListInstancePartitionOperationsResponse.next_page_token]
  // from a previous
  // [ListInstancePartitionOperationsResponse][google.spanner.admin.instance.v1.ListInstancePartitionOperationsResponse]
  // to the same `parent` and with the same `filter`.
  string page_token = 4 [(google.api.field_behavior) = OPTIONAL];

  // Optional. Deadline used while retrieving metadata for instance partition
  // operations. Instance partitions whose operation metadata cannot be
  // retrieved within this deadline will be added to
  // [unreachable][ListInstancePartitionOperationsResponse.unreachable] in
  // [ListInstancePartitionOperationsResponse][google.spanner.admin.instance.v1.ListInstancePartitionOperationsResponse].
  google.protobuf.Timestamp instance_partition_deadline = 5
      [(google.api.field_behavior) = OPTIONAL];
}

// The response for
// [ListInstancePartitionOperations][google.spanner.admin.instance.v1.InstanceAdmin.ListInstancePartitionOperations].
message ListInstancePartitionOperationsResponse {
  // The list of matching instance partition [long-running
  // operations][google.longrunning.Operation]. Each operation's name will be
  // prefixed by the instance partition's name. The operation's
  // [metadata][google.longrunning.Operation.metadata] field type
  // `metadata.type_url` describes the type of the metadata.
  repeated google.longrunning.Operation operations = 1;

  // `next_page_token` can be sent in a subsequent
  // [ListInstancePartitionOperations][google.spanner.admin.instance.v1.InstanceAdmin.ListInstancePartitionOperations]
  // call to fetch more of the matching metadata.
  string next_page_token = 2;

  // The list of unreachable instance partitions.
  // It includes the names of instance partitions whose operation metadata could
  // not be retrieved within
  // [instance_partition_deadline][google.spanner.admin.instance.v1.ListInstancePartitionOperationsRequest.instance_partition_deadline].
  repeated string unreachable_instance_partitions = 3;
}

// The request for
// [MoveInstance][google.spanner.admin.instance.v1.InstanceAdmin.MoveInstance].
message MoveInstanceRequest {
  // Required. The instance to move.
  // Values are of the form `projects/<project>/instances/<instance>`.
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/Instance"
    }
  ];

  // Required. The target instance configuration where to move the instance.
  // Values are of the form `projects/<project>/instanceConfigs/<config>`.
  string target_config = 2 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "spanner.googleapis.com/InstanceConfig"
    }
  ];
}

// The response for
// [MoveInstance][google.spanner.admin.instance.v1.InstanceAdmin.MoveInstance].
message MoveInstanceResponse {}

// Metadata type for the operation returned by
// [MoveInstance][google.spanner.admin.instance.v1.InstanceAdmin.MoveInstance].
message MoveInstanceMetadata {
  // The target instance configuration where to move the instance.
  // Values are of the form `projects/<project>/instanceConfigs/<config>`.
  string target_config = 1;

  // The progress of the
  // [MoveInstance][google.spanner.admin.instance.v1.InstanceAdmin.MoveInstance]
  // operation.
  // [progress_percent][google.spanner.admin.instance.v1.OperationProgress.progress_percent]
  // is reset when cancellation is requested.
  OperationProgress progress = 2;

  // The time at which this operation was cancelled.
  google.protobuf.Timestamp cancel_time = 3;
}