Generate private key and certificate

sfdcarjuna.com/2024/06/24/how...
Generate a private key
openssl genpkey -algorithm RSA -out private.key -aes256
Generate a CSR
openssl req -new -key private.key -out request.csr
Generate a self-signed certificate
openssl x509 -req -days 365 -in request.csr -signkey private.key -out certificate.crt