feat: add an instance metadata experimental service

Signed-off-by: aramissennyeydd <aramis.sennyey@doordash.com>

packages/backend/src/instanceMetadata.ts

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2024 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.
+ */
+import {
+  coreServices,
+  createBackendPlugin,
+} from '@backstage/backend-plugin-api';
+
+export default createBackendPlugin({
+  pluginId: 'instance-metadata-logging',
+  register(env) {
+    env.registerInit({
+      deps: {
+        instanceMetadata: coreServices.EXPERIMENTAL_instanceMetadata,
+      },
+      async init({ instanceMetadata }) {
+        console.log('metadata', instanceMetadata.getInstalledFeatures());
+      },
+    });
+  },
+});