/scripts/certbot
Enter your domain, and certificate is auto installed to your domain. Make sure website A/ CNAME records are pointed to the server IP.
Thats it!!
To prevent SSLs from expiring, certbot renew checks your SSL status twice a day and renews certificates expiring within thirty days.
Enable cron job to auto renewal -
0 1 * * * certbot renew >> /var/log/certbot-cron.log 2>&1