Script to generate a host key and CSR file when keying a SSL certificate.

create_csr.sh

#!/bin/bash

if [ "$#" -ne 1 ]; then
  echo "Usage: `basename $0` domain"
  exit 85
fi

DOMAIN=$1
HOST_KEY="$DOMAIN".key
CSR="$DOMAIN".csr
PRIVATE_KEY="$DOMAIN".private.key

set -o verbose
set -e

openssl genrsa -des3 -out "$HOST_KEY" 2048

openssl req -new -key "$HOST_KEY" -out "$CSR"

openssl rsa -in "$HOST_KEY" -out "$PRIVATE_KEY"

echo
echo "Now copy and paste this CSR to your CA..."
echo
cat "$CSR"