feat(cloudFoundry): get apiKey from VCAP_SERVICES

Author: gergelyke

lib/utils/configReader.js

@@ -31,15 +31,20 @@ ConfigReader.prototype._getSystemConfig = function () {
 
 ConfigReader.prototype._getCloudFoundryConfig = function () {
   var VCAP_APPLICATION = process.env.VCAP_APPLICATION
+  var VCAP_SERVICES = process.env.VCAP_SERVICES
+  var apiKey
 
   try {
     VCAP_APPLICATION = JSON.parse(VCAP_APPLICATION)
+    VCAP_SERVICES = JSON.parse(VCAP_SERVICES)
+    apiKey = VCAP_SERVICES.trace[0].credentials.TRACE_API_KEY
   } catch (ex) {
     return {}
   }
 
   return {
-    serviceName: VCAP_APPLICATION.name
+    serviceName: VCAP_APPLICATION.name,
+    apiKey: apiKey
   }
 }
 

lib/utils/configReader.spec.js

@@ -164,16 +164,25 @@ describe('Config Reader module', function () {
       name: 'test-app'
     })
 
+    process.env.VCAP_SERVICES = JSON.stringify({
+      trace: [{
+        credentials: {
+          TRACE_API_KEY: 'test-key'
+        }
+      }]
+    })
+
     var configReader = ConfigReader.create({
       reporter: 'dummy',
-      collectorApiUrl: 'http://c.a.b',
-      apiKey: 'api-key'
+      collectorApiUrl: 'http://c.a.b'
     })
 
     var cfg = configReader.getConfig()
 
     expect(cfg.serviceName).to.eql('test-app')
+    expect(cfg.apiKey).to.eql('test-key')
     delete process.env.VCAP_APPLICATION
+    delete process.env.VCAP_SERVICES
   })
 
   it('can find config file by default config', function () {