When running AdminUI, how to renew the SSL certificate for the AdminUI?
At first glance, the documentation gives a section on how to do this (1).
The certificate won't be auto-renewed, the certificate should be renewed manually as explained in the documentation (1).
(Optional) Obtain and Import a Trusted Certificate into the Administrative UI
When the Administrative UI is accessed over SSL, the server
secures the connection using a self-signed certificate by
default. The Administrative UI server self-signed certificate
can be replaced with a certificate that is signed by a trusted
Certificate Authority (CA) or with a custom self-signed
certificate. A trusted certificate ensures a secure connection
to the Administrative UI and prevents browser security warnings.