OpenVPN setup on docker

openvpn.sh

#!/bin/bash

arg=$1
host=$2

OVPN_DATA="ovpn-data"

set -x

if [ "$arg" == "setup" ]; then
  if [[ -n "$host" ]]; then
    echo "You need to specify a hostname for this VPN service"
    echo "Example: openvpn.sh setup myhostname"
  fi

  read -p "Are you sure you want to run setup? " -n 1 -r
  if [ "$REPLY" == "y" ]; then
    docker volume rm $OVPN_DATA 2> /dev/null
    docker volume create --name $OVPN_DATA
    docker run -v $OVPN_DATA:/etc/openvpn --rm kylemanna/openvpn ovpn_genconfig -u udp://$host
    docker run -v $OVPN_DATA:/etc/openvpn --rm -it kylemanna/openvpn ovpn_initpki
    docker run -v $OVPN_DATA:/etc/openvpn --rm -it kylemanna/openvpn easyrsa build-client-full CLIENTNAME nopass
    docker run -v $OVPN_DATA:/etc/openvpn --rm kylemanna/openvpn ovpn_getclient CLIENTNAME > $host.ovpn
  fi
else
  docker run -v $OVPN_DATA:/etc/openvpn -d --rm -p 1194:1194/udp --cap-add=NET_ADMIN kylemanna/openvpn
  docker run -v $OVPN_DATA:/etc/openvpn -d --rm -p 110:1194/tcp --cap-add=NET_ADMIN kylemanna/openvpn ovpn_run --proto tcp
fi