In the new versions of certbot, certbot-auto is deprecated - https://community.letsencrypt.org/t/certbot-auto-deprecated-explanation-and-solutions/139821. I tried to use your script without "-c" but it I was receiving the following error:
Skipping bootstrap because certbot-auto is deprecated on this system.
Your system is not supported by certbot-auto anymore.
Certbot cannot be installed.
My suggestion is to use certbot by default and deprecate the old certbot-auto
In the new versions of certbot, certbot-auto is deprecated - https://community.letsencrypt.org/t/certbot-auto-deprecated-explanation-and-solutions/139821. I tried to use your script without "-c" but it I was receiving the following error: Skipping bootstrap because certbot-auto is deprecated on this system. Your system is not supported by certbot-auto anymore. Certbot cannot be installed.
My suggestion is to use certbot by default and deprecate the old certbot-auto