fix(logging): only start Stackimpact in prod (#10112)

config.json.example

@@ -112,5 +112,6 @@
       "CLOUDKARAFKA_USERNAME": "",
       "CLOUDKARAFKA_PASSWORD": "",
       "CLOUDKARAFKA_TOPIC_PREFIX": ""
-    }
+    },
+    "STACK_IMPACT_KEY": "aaaabbbbccccddddeeeeffffgggg111100002222"
 }

website/server/index.js

@@ -20,11 +20,6 @@ setupNconf();
 const nconf = require('nconf');
 const stackimpact = require('stackimpact');
 
-stackimpact.start({
-  agentKey: nconf.get('STACK_IMPACT_KEY'),
-  appName: 'Habitica',
-});
-
 const cluster = require('cluster');
 const logger = require('./libs/logger');
 
@@ -32,6 +27,13 @@ const IS_PROD = nconf.get('IS_PROD');
 const IS_DEV = nconf.get('IS_DEV');
 const CORES = Number(nconf.get('WEB_CONCURRENCY')) || 0;
 
+if (IS_PROD) {
+  stackimpact.start({
+    agentKey: nconf.get('STACK_IMPACT_KEY'),
+    appName: 'Habitica',
+  });
+}
+
 // Setup the cluster module
 if (CORES !== 0 && cluster.isMaster && (IS_DEV || IS_PROD)) {
   // Fork workers. If config.json has WEB_CONCURRENCY=x, use that - otherwise, use all cpus-1 (production)