feat: turns on self-signed JWT feature flag (#1455)

PiperOrigin-RevId: 392067151
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: bcoe <bencoe@google.com>

Author: gcf-owl-bot[bot]

.kokoro/pre-system-test.sh

@@ -138,6 +138,12 @@ export class DatabaseAdminClient {
     // Save the auth object to the client, for use by other methods.
     this.auth = this._gaxGrpc.auth as gax.GoogleAuth;
 
+    // Set useJWTAccessWithScope on the auth object.
+    this.auth.useJWTAccessWithScope = true;
+
+    // Set defaultServicePath on the auth object.
+    this.auth.defaultServicePath = staticMembers.servicePath;
+
     // Set the default scopes in auth client if needed.
     if (servicePath === staticMembers.servicePath) {
       this.auth.defaultScopes = staticMembers.scopes;
@@ -3370,6 +3376,7 @@ export class DatabaseAdminClient {
       return this.databaseAdminStub!.then(stub => {
         this._terminated = true;
         stub.close();
+        this.operationsClient.close();
       });
     }
     return Promise.resolve();

src/v1/database_admin_client.ts

@@ -153,6 +153,12 @@ export class InstanceAdminClient {
     // Save the auth object to the client, for use by other methods.
     this.auth = this._gaxGrpc.auth as gax.GoogleAuth;
 
+    // Set useJWTAccessWithScope on the auth object.
+    this.auth.useJWTAccessWithScope = true;
+
+    // Set defaultServicePath on the auth object.
+    this.auth.defaultServicePath = staticMembers.servicePath;
+
     // Set the default scopes in auth client if needed.
     if (servicePath === staticMembers.servicePath) {
       this.auth.defaultScopes = staticMembers.scopes;
@@ -1926,6 +1932,7 @@ export class InstanceAdminClient {
       return this.instanceAdminStub!.then(stub => {
         this._terminated = true;
         stub.close();
+        this.operationsClient.close();
       });
     }
     return Promise.resolve();

src/v1/instance_admin_client.ts

@@ -134,6 +134,12 @@ export class SpannerClient {
     // Save the auth object to the client, for use by other methods.
     this.auth = this._gaxGrpc.auth as gax.GoogleAuth;
 
+    // Set useJWTAccessWithScope on the auth object.
+    this.auth.useJWTAccessWithScope = true;
+
+    // Set defaultServicePath on the auth object.
+    this.auth.defaultServicePath = staticMembers.servicePath;
+
     // Set the default scopes in auth client if needed.
     if (servicePath === staticMembers.servicePath) {
       this.auth.defaultScopes = staticMembers.scopes;