ecosystem.json

{
   "apps" : [{
      "name" : "do",
      "script" : "app.js",
      "env" : {
        "COMMON_VARIABLE": "true"
      },
      "env_production":{
        "NODE_ENV":"production"
      }
   }],
   "deploy" : {
     "production" : {
       "user" : "root",
       "host" : ["118.190.206.181"],
       "port" : "39999",
       "ref"  : "origin/master",
       "repo" : "git@github.com:snailuncle/jsTree.git",
       "path" : "/www/website/production",
       "ssh_options": "StrictHostKeyChecking=no",
       "post-deploy": "rm -rf /www/website/production/source && cd /www/website/production && git clone git@github.com:snailuncle/jsTree.git && mv jsTree source && cd /www/website/production/source && npm install --registry=https://registry.npm.taobao.org && pm2 startOrRestart ecosystem.json --env production",
       "env": {
         "NODE_ENV": "production"
       }
      }
   }
}