How to switch from using certbot SSL to cloudflare provided SSL cert?

How to switch from using certbot SSL to cloudflare provided SSL cert? In cloudflare control panel I already have encryption mode set to full for my domain and I can download the certificate from the origin server section. I am confused about where to get the certificate key for these parameters in the NGINX my.site.conf file which are currently using ssl cert from certbot.

ssl_certificate
ssl_certificate_key
Was this page helpful?