how to create a SSL certificate with a kickstart on the installation.

One solution is use this script for generate a self-sign certificate and adapt the values to you necessities.

 
%post
cd /etc/ssl/certs

#!/bin/bash
domain=server.redhat.com   <--Specify you hostname and domain
commonname=$domain

#Change to your company details    <--- Change according with you company information.
country=US
state=Texas
locality=Brownsville
organization=example
organizationalunit=data
email=administrator@example.com

#Optional
password=password

if [ -z "$domain" ]
then
    echo "Argument not present."
    echo "Useage $0 [common name]"

    exit 99
fi

echo "Generating key request for $domain"

#Generate a key
openssl genrsa -des3 -passout pass:$password -out $domain.key 2048 -noout

#Remove passphrase from the key. Comment the line out to keep the passphrase
echo "Removing passphrase from key"
openssl rsa -in $domain.key -passin pass:$password -out $domain.key

#Create the request
echo "Creating CSR"
openssl req -new -key $domain.key -out $domain.csr -passin pass:$password \
    -subj "/C=$country/ST=$state/L=$locality/O=$organization/OU=$organizationalunit/CN=$commonname/emailAddress=$email"\
    -days 1825
%end

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