I have a site which is running on https with godaddy ssl certificate (paid certificate) which is valid for 1 year. Not that certificate is expiring on 13-08-2021.

I got the renew certificate.

My question is how I have to do update on nginx so that my site will not down and its ssl certificate is extend.

I am using the ubuntu machine & using the NGINX server. For SSL I am using the certbot to manage.

certificate is on path

/etc/domain.com/domain.com.chained.crt
/etc/domain.com/domain.com.key

On my nginx server part of SSL it is written like this

ssl_certificate /etc/domain.com/domain.com.chained.crt
ssl_certificate /etc/domain.com/domain.com.key

Should I renew now or wait to expire and then renew. I think there is some mechanism by which it should be done before expiry so that user will not suffer.

If I am using the free letsencrypt certificate then I have to use command

certbot renew

for renew the certifiate. How to deal with this I don't know

Any help or suggestion is really appreciated