Default to sending APM data to existing Elastic Cloud cluster

config/apm.js

@@ -21,7 +21,10 @@
  * DO NOT EDIT THIS FILE!
  *
  * This file contains the configuration for the Elastic APM instrumentaion of
- * Kibana itself.
+ * Kibana itself and is only intented to be used during development of Kibana.
+ *
+ * Instrumentation is turned off by default. Once activated it will send APM
+ * data to an Elasticsearch cluster accessible by Elastic employees.
  *
  * To modify the configuration, either use environment variables, or create a
  * file named `config/apm.dev.js`, which exports a config object as described
@@ -41,6 +44,8 @@ const merge = require('lodash.merge');
 
 module.exports = merge({
   active: false,
+  serverUrl: 'https://f1542b814f674090afd914960583265f.apm.us-central1.gcp.cloud.es.io:443',
+  secretToken: 'R0Gjg46pE9K9wGestd',
   globalLabels: {},
   centralConfig: false
 }, devConfig());