New backend-plugin-manager service that:

- scans and imports plugins dynamically from a root folder,
- provides plugin initialization,

for both the legacy and the new backend system.

Signed-off-by: David Festal <dfestal@redhat.com>
Co-Authored-By: Gorkem Ercan <gorkem.ercan@gmail.com>

packages/backend-plugin-manager/config.d.ts

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2023 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export interface Config {
+  /** @visibility frontend */
+  dynamicPlugins?: {
+    /**
+     * The local path, relative to the backstage root, that contains dynamic plugins.
+     * @visibility frontend
+     */
+    rootDirectory: string;
+  };
+}