Reload Nginx serivice instead of restaring it when reissuing Let's Encrypt certificate
When reissuing Let's Encrypt certificate for wildcard subdomain(*.example.com) Nginx is restarted, which causes downtime depending on the number of websites. For example, if the server hosts around 4000 domains this can cause 15 seconds downtime for each restart.
The suggestion is to reload the Nginx service and not to restart it.
Thank you for your input. We will consider this functionality in upcoming releases if it is popular. Everyone, please continue voting for this feature if you consider it important.
Bernsteiner, Michael commented
If you ask me this is a bug and MUST be fixed ASAP!