feat(networkconnectivity): initial generation of apiv1alpha1 (#3567)

Initial generation of network connectivity.

Author: Benjamin E. Coe

internal/.repo-metadata-full.json

@@ -543,6 +543,14 @@
     "docs_url": "https://pkg.go.dev/cloud.google.com/go/monitoring/dashboard/apiv1",
     "release_level": "ga"
   },
+  "cloud.google.com/go/networkconnectivity/apiv1alpha1": {
+    "distribution_name": "cloud.google.com/go/networkconnectivity/apiv1alpha1",
+    "description": "Network Connectivity API",
+    "language": "Go",
+    "client_library_type": "generated",
+    "docs_url": "https://pkg.go.dev/cloud.google.com/go/networkconnectivity/apiv1alpha1",
+    "release_level": "alpha"
+  },
   "cloud.google.com/go/notebooks/apiv1beta1": {
     "distribution_name": "cloud.google.com/go/notebooks/apiv1beta1",
     "description": "Notebooks API",

internal/gapicgen/generator/config.go

@@ -779,6 +779,14 @@ var microgenGapicConfigs = []*microgenConfig{
 		apiServiceConfigPath:  "google/cloud/functions/v1/functions_gapic.yaml",
 		releaseLevel:          "ga",
 	},
+	{
+		inputDirectoryPath:    "google/cloud/networkconnectivity/v1alpha1",
+		pkg:                   "networkconnectivity",
+		importPath:            "cloud.google.com/go/networkconnectivity/apiv1alpha1",
+		gRPCServiceConfigPath: "google/cloud/networkconnectivity/v1alpha1/networkconnectivity_grpc_service_config.json",
+		apiServiceConfigPath:  "google/cloud/networkconnectivity/v1alpha1/networkconnectivity_v1alpha1.yaml",
+		releaseLevel:          "alpha",
+	},
 	{
 		inputDirectoryPath:    "google/cloud/notebooks/v1beta1",
 		pkg:                   "notebooks",