feat(scaffolder-backend): start migrating to use new auth services

Signed-off-by: Camila Belo <camilaibs@gmail.com>

plugins/scaffolder-node/api-report.md

@@ -5,6 +5,7 @@
 ```ts
 /// <reference types="node" />
 
+import { BackstageCredentials } from '@backstage/backend-plugin-api';
 import { JsonObject } from '@backstage/types';
 import { JsonValue } from '@backstage/types';
 import { Logger } from 'winston';
@@ -47,6 +48,7 @@ export type ActionContext<
   };
   signal?: AbortSignal;
   each?: JsonObject;
+  getInitiatorCredentials(): Promise<BackstageCredentials>;
 };
 
 // @public (undocumented)
@@ -356,6 +358,8 @@ export interface TaskContext {
     | undefined
   >;
   // (undocumented)
+  getInitiatorCredentials(): Promise<BackstageCredentials>;
+  // (undocumented)
   getWorkspaceName(): Promise<string>;
   // (undocumented)
   isDryRun?: boolean;
@@ -385,6 +389,7 @@ export type TaskEventType = 'completion' | 'log' | 'cancelled' | 'recovered';
 // @public
 export type TaskSecrets = Record<string, string> & {
   backstageToken?: string;
+  initiatorCredentials?: string;
 };
 
 // @public

plugins/scaffolder-node/src/actions/types.ts

@@ -21,6 +21,7 @@ import { TaskSecrets } from '../tasks';
 import { TemplateInfo } from '@backstage/plugin-scaffolder-common';
 import { UserEntity } from '@backstage/catalog-model';
 import { Schema } from 'jsonschema';
+import { BackstageCredentials } from '@backstage/backend-plugin-api';
 
 /**
  * ActionContext is passed into scaffolder actions.
@@ -80,6 +81,11 @@ export type ActionContext<
    * Optional value of each invocation
    */
   each?: JsonObject;
+
+  /**
+   * Get the credentials for the current request
+   */
+  getInitiatorCredentials(): Promise<BackstageCredentials>;
 };
 
 /** @public */

plugins/scaffolder-node/src/tasks/types.ts

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+import { BackstageCredentials } from '@backstage/backend-plugin-api';
 import { TaskSpec } from '@backstage/plugin-scaffolder-common';
 import { JsonObject, JsonValue, Observable } from '@backstage/types';
 
@@ -23,7 +24,11 @@ import { JsonObject, JsonValue, Observable } from '@backstage/types';
  * @public
  */
 export type TaskSecrets = Record<string, string> & {
+  /**
+   * @deprecated use "initiatorCredentials" instead
+   */
   backstageToken?: string;
+  initiatorCredentials?: string;
 };
 
 /**
@@ -140,6 +145,8 @@ export interface TaskContext {
   ): Promise<void>;
 
   getWorkspaceName(): Promise<string>;
+
+  getInitiatorCredentials(): Promise<BackstageCredentials>;
 }
 
 /**