PM2 daemonize any app

remember to set unbuffered output flag -u before running any python script, otherwise there will be no output in pm2 log

install and setup pm2 as daemon:

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sudo apt install npm
sudo npm config set registry https://registry.npmmirror.com
sudo npm install -g pm2
pm2 startup

run program as daemon:

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pm2 start -n <process_name> <executable_name> -- <process_arguments>
# save all processes
pm2 save
pm2 monit
pm2 logs
pm2 ls

View history CPU usage statistics

First install sysstat package, then run sar -u