pm2-ws.json

{"apps":[{
    "name":"herald-webservice-1",
    "script":"./app.js",
    "watch":false,
    "args":" --mode=production --port=3000",
    "instances":1,
    "out_file":"/tmp/ws-1.log",
    "autorestart":true,
    "max_restarts":50,
    "restart_delay":10000,
    "combine_logs":true,
    "exec_mode":"fork"
  },
  {
    "name":"herald-webservice-2",
    "script":"./app.js",
    "watch":false,
    "args":" --mode=production --port=3001",
    "instances":1,
    "out_file":"/tmp/ws-2.log",
    "autorestart":true,
    "max_restarts":50,
    "restart_delay":10000,
    "combine_logs":true,
    "exec_mode":"fork"
  },
  {
    "name":"herald-webservice-3",
    "script":"./app.js",
    "watch":false,
    "args":" --mode=production --port=3002",
    "instances":1,
    "out_file":"/tmp/ws-3.log",
    "autorestart":true,
    "max_restarts":50,
    "restart_delay":10000,
    "combine_logs":true,
    "exec_mode":"fork"
  },
  {
    "name":"herald-webservice-4",
    "script":"./app.js",
    "watch":false,
    "args":" --mode=production --port=3003",
    "instances":1,
    "out_file":"/tmp/ws-4.log",
    "autorestart":true,
    "max_restarts":50,
    "restart_delay":10000,
    "combine_logs":true,
    "exec_mode":"fork"
  }]}