feat: [alloydb] Added enum value for PG15 (#4680)

* feat: Added enum value for PG15
feat: Deprecate network field in favor of network_config.network
feat: Added ClientConnectionConfig
feat: Added DatabaseVersion

PiperOrigin-RevId: 566668162

Source-Link: googleapis/googleapis@90d552e

Source-Link: googleapis/googleapis-gen@c72f454
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packages/google-cloud-alloydb/protos/google/cloud/alloydb/v1alpha/resources.proto

@@ -83,6 +83,9 @@ enum DatabaseVersion {
 
   // The database version is Postgres 14.
   POSTGRES_14 = 2;
+
+  // The database version is Postgres 15.
+  POSTGRES_15 = 3;
 }
 
 // The username/password for a database user. Used for specifying initial
@@ -388,17 +391,16 @@ message Cluster {
     // The network must belong to the same project as the cluster. It is
     // specified in the form:
     // "projects/{project_number}/global/networks/{network_id}". This is
-    // required to create a cluster. It can be updated, but it cannot be
-    // removed.
+    // required to create a cluster.
     string network = 1 [
       (google.api.field_behavior) = REQUIRED,
       (google.api.resource_reference) = {
         type: "compute.googleapis.com/Network"
       }
     ];
 
-    // Optional. The name of the allocated IP range for the private IP AlloyDB
-    // cluster. For example: "google-managed-services-default". If set, the
+    // Optional. Name of the allocated IP range for the private IP AlloyDB
+    // cluster, for example: "google-managed-services-default". If set, the
     // instance IPs for this cluster will be created in the allocated range. The
     // range name must comply with RFC 1035. Specifically, the name must be 1-63
     // characters long and match the regular expression
@@ -540,9 +542,10 @@ message Cluster {
   // Required. The resource link for the VPC network in which cluster resources
   // are created and from which they are accessible via Private IP. The network
   // must belong to the same project as the cluster. It is specified in the
-  // form: "projects/{project_number}/global/networks/{network_id}". This is
-  // required to create a cluster. It can be updated, but it cannot be removed.
+  // form: "projects/{project}/global/networks/{network_id}". This is required
+  // to create a cluster. Deprecated, use network_config.network instead.
   string network = 10 [
+    deprecated = true,
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = { type: "compute.googleapis.com/Network" }
   ];
@@ -688,6 +691,16 @@ message Instance {
     Mode mode = 1;
   }
 
+  // Client connection configuration
+  message ClientConnectionConfig {
+    // Optional. Configuration to enforce connectors only (ex: AuthProxy)
+    // connections to the database.
+    bool require_connectors = 1 [(google.api.field_behavior) = OPTIONAL];
+
+    // Optional. SSL config option for this instance.
+    SslConfig ssl_config = 2 [(google.api.field_behavior) = OPTIONAL];
+  }
+
   // Instance State
   enum State {
     // The state of the instance is unknown.
@@ -875,6 +888,10 @@ message Instance {
   // specify explicitly specify the value in each update request.
   UpdatePolicy update_policy = 22;
 
+  // Optional. Client connection specific configurations
+  ClientConnectionConfig client_connection_config = 23
+      [(google.api.field_behavior) = OPTIONAL];
+
   // Reserved for future use.
   bool satisfies_pzs = 24;
 }
@@ -892,8 +909,9 @@ message ConnectionInfo {
   // This field currently has no semantic meaning.
   string name = 1;
 
-  // Output only. The IP address for the Instance.
-  // This is the connection endpoint for an end-user application.
+  // Output only. The private network IP address for the Instance. This is the
+  // default IP for the instance and is always created (even if enable_public_ip
+  // is set). This is the connection endpoint for an end-user application.
   string ip_address = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The pem-encoded chain that may be used to verify the X.509
@@ -1067,6 +1085,12 @@ message Backup {
 
   // Reserved for future use.
   bool satisfies_pzs = 21;
+
+  // Output only. The database engine major version of the cluster this backup
+  // was created from. Any restored cluster created from this backup will have
+  // the same database version.
+  DatabaseVersion database_version = 22
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // SupportedDatabaseFlag gives general information about a database flag,