Install Commercial SSL Certificate

I have a wildcard SSL certificate.
I Want to Install SSL on My Raspberry Pi Home Assistant server. but have not found any Documentation. I don’t want to install Let’sEncrypt / DuckDNS.

Please Suggest me . What can i do?

You could use the NGINX SSL add-on

something like this:

http:
  ssl_certificate: /ssl/fullchain.pem
  ssl_key: /ssl/privkey.pem

If your certificate is a crt or cer, use this first:
https://www.sslshopper.com/ssl-converter.html

I try this already. but its when i browse , its show error : 400: Bad Request

i add those line on configuration.yaml. but not showing SSL.
certificate file also added on /ssl directory.

What can i do?