gencert.sh

#!/bin/bash
#
# Bash shell script for generating self-signed certs. Run this in a folder, as it
# generates a few files. Based on the following GIST Extract by Brad Landers:
# https://gist.github.com/bradland/1690807
# 
# Additional alterations by: Hernandes B. de Sousa
# Date: 2013-10-04
#

# Script accepts a single argument, the fqdn for the cert
DOMAIN="$1"
COMPANY="$2"
if [ -z "$DOMAIN" ] || [ -z "$COMPANY" ]; then
  echo "Usage: $(basename $0) <domain> <company>"
  exit 11
fi

fail_if_error() {
  [ $1 != 0 ] && {
    exit 10
  }
}

openssl genrsa -out $DOMAIN.key 4096;
fail_if_error $?

subj="
C=BR
ST=SP
O=$COMPANY
localityName=Sao Paulo
commonName=$DOMAIN
emailAddress=admin@example.com
"

openssl req \
    -new \
    -batch \
    -subj "$(echo -n "$subj" | tr "\n" "/")" \
    -key $DOMAIN.key \
    -out $DOMAIN.csr 
fail_if_error $?

openssl x509 -req -days 3650 -in $DOMAIN.csr -signkey $DOMAIN.key -out $DOMAIN.crt;
fail_if_error $?