feat(vertexai): add google_vertex_ai_index for Vertex AI Matching Engine (#6728) (#4923)

* feat: add google_vertex_ai_index for Vertex AI Matching Engine

* fix: increase timeouts to 60 min because 20 wasn't enough for creation

* fix: change coe to make name computed instead of an input

* fix: use costom flatten code to ignore_read a nested property's field

* fix: add skip_import_test: true to the auto-gen test

* feat: add a test with a manually updated ImportStateVerifyIgnore

* Apply suggestions from code review [ci skip]

Update descriptions based on the suggestions

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>

* refactor: use ignore_read_extra instead of a manual test

* fix: use an empty object for bruteForceConfig

* feat: define additional fields to api.yaml

* feat: add an example to increase test coverage

* feat: deal with contentsDeltaUri as an updatable field

* fix: fix the error because the cosine distance type only supports unit l2 norm type

This is the error message from the endpoint:
"Index with `COSINE_DISTANCE` distanceMeasureType currently only supports `UNIT_L2_NORM` featureNormType."

* feat: remove approximate_neighbors_count from an example with brute_force_config

approximate_neighbors_count is required if tree-AH algorithm is used.
from https://cloud.google.com/vertex-ai/docs/matching-engine/configuring-indexes#brute-force-config

* test: add a handwritten test for patch

* fix: add update_mask: true to use the mask as a url param

* refactor: put 'input: true' on the fields patch couldn't update

* feat: use custom pre update code for a nested object

* fix: update the handwritten test accordingly

* feat: add custom flatten code for is_complete_overwrite

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>
Signed-off-by: Modular Magician <[email protected]>

Signed-off-by: Modular Magician <[email protected]>
Co-authored-by: Stephen Lewis (Burrows) <[email protected]>

Author: modular-magician

.changelog/6728.txt

@@ -0,0 +1,3 @@
+```release-note:new-resource
+google_vertex_ai_index
+```

google-beta/provider.go

@@ -1031,9 +1031,9 @@ func Provider() *schema.Provider {
 	return provider
 }
 
-// Generated resources: 284
+// Generated resources: 285
 // Generated IAM resources: 186
-// Total generated resources: 470
+// Total generated resources: 471
 func ResourceMap() map[string]*schema.Resource {
 	resourceMap, _ := ResourceMapWithErrors()
 	return resourceMap
@@ -1510,6 +1510,7 @@ func ResourceMapWithErrors() (map[string]*schema.Resource, error) {
 			"google_vertex_ai_featurestore_entitytype_iam_policy":          ResourceIamPolicy(VertexAIFeaturestoreEntitytypeIamSchema, VertexAIFeaturestoreEntitytypeIamUpdaterProducer, VertexAIFeaturestoreEntitytypeIdParseFunc),
 			"google_vertex_ai_featurestore_entitytype_feature":             resourceVertexAIFeaturestoreEntitytypeFeature(),
 			"google_vertex_ai_metadata_store":                              resourceVertexAIMetadataStore(),
+			"google_vertex_ai_index":                                       resourceVertexAIIndex(),
 			"google_vpc_access_connector":                                  resourceVPCAccessConnector(),
 			"google_workflows_workflow":                                    resourceWorkflowsWorkflow(),
 		},