add ecosystem with production env and easier to start deleter and clustered server

ecosystem.config.js

@@ -0,0 +1,32 @@
+module.exports = {
+	// Options reference: https://pm2.io/doc/en/runtime/reference/ecosystem-file/
+	apps : [{
+		name: 'chan',
+		script: 'server.js',
+		instances: 2,
+		autorestart: true,
+		watch: false,
+		max_memory_restart: '1G',
+		log_date_format: 'YYYY-MM-DD HH:mm:ss',
+		env: {
+			NODE_ENV: 'development'
+		},
+		env_production: {
+			NODE_ENV: 'production'
+		}
+	}, {
+		name: 'deleter',
+		script: 'deletescheduler.js',
+		instances: 1,
+		autorestart: true,
+		watch: false,
+		max_memory_restart: '1G',
+		log_date_format: 'YYYY-MM-DD HH:mm:ss',
+		env: {
+			NODE_ENV: 'development'
+		},
+		env_production: {
+			NODE_ENV: 'production'
+		}
+	}]
+};