[Manager] pm2

npm install pm2 -g

$ pm2 start app.js
$ pm2 start --name my_app app.js # Giving a name for it
 
$ pm2 list
 
$ pm2 stop     <app_name|namespace|id|'all'|json_conf>
$ pm2 restart  <app_name|namespace|id|'all'|json_conf>
$ pm2 delete   <app_name|namespace|id|'all'|json_conf>
 
# Zero Downtime Reload
$ pm2 reload all
 
# Show logs
$ pm2 logs <app_name|namespace|id|'all'|json_conf> 
 
# Show more lines
$ pm2 logs <app_name|namespace|id|'all'|json_conf> --lines 30

# Terminal Based Dashboard
$ pm2 monit
 
# Open a Cluster Mode, named "my_server" with 5 nodes
$ pm2 start dist/server.js --name my_server -i 5
 
# Scales `my_server` up by 3 workers
$ pm2 scale my_server +3  
 
 # Scales `my_server` up or down to 2 workers total     
$ pm2 scale my_server 2