Added Umami to pm2 ecosystem file.

ecosystem.config.js

@@ -1,4 +1,4 @@
-// const config = require('config');
+const config = require('config');
 
 module.exports = {
 	apps: [
@@ -14,5 +14,15 @@ module.exports = {
 				NODE_ENV: 'production',
 			},
 		},
+		...(config.analytics.enabled ? [{
+			name: 'umami',
+			script: 'npm start',
+			cwd: process.env.UMAMI_DIR || '../umami',
+			restart_delay: 3000,
+			merge_logs: true,
+			env: {
+				NODE_ENV: 'production',
+			},
+		}] : []),
 	],
 };