[Unit]
Description=slackbot 
After=network.target
[Service]
ExecStart=/usr/bin/node /var/www/slackbot/app.js
Restart=always
RestartSec=10
#User=nobody
#Group=nobody
#Environment=PATH=/usr/bin:/usr/local/bin
Environment=NODE_ENV=production
WorkingDirectory=/var/www/slackbot
[Install]
WantedBy=multi-user.target