Added master/worker pm2 detection and mail configuration

imports/startup/server/email.js

@@ -3,6 +3,7 @@ import { Mongo } from 'meteor/mongo';
 import nodemailer from 'nodemailer';
 import { MailTime } from 'meteor/ostrio:mailer';
 import i18n from 'i18next';
+import isMaster from './isMaster';
 
 const transports = [];
 
@@ -22,7 +23,8 @@ export const hr = `<table cellspacing="0" cellpadding="0" border="0" width="100%
 
 let MailQueue;
 
-if (Meteor.settings.private.isMailServer) {
+if (Meteor.settings.private.isMailServer && isMaster) {
+  console.log('I\'m the mail server');
   MailQueue = new MailTime({
     db,
     type: 'server',
@@ -47,6 +49,7 @@ if (Meteor.settings.private.isMailServer) {
     template: MailTime.Template // Use default template
   });
 } else {
+  console.log('I\'m a mail client');
   MailQueue = new MailTime({
     db,
     type: 'client',

imports/startup/server/index.js

@@ -14,3 +14,4 @@ import './subsUnion';
 import './prerender';
 import './feedback';
 import './cron';
+import './isMaster';

imports/startup/server/isMaster.js

@@ -0,0 +1,16 @@
+/* eslint-disable import/no-absolute-path */
+
+import pm2Master from 'pm2-master';
+import { Meteor } from 'meteor/meteor';
+
+Meteor.startup(() => {
+  if (pm2Master.isMaster()) {
+    console.log('This is the master process');
+  } else {
+    console.log('This is a worker process');
+  }
+});
+
+const isMaster = () => pm2Master.isMaster();
+
+export default isMaster;