Run OpenVPN Server in Docker container

openvpn-docker.sh

#!/usr/bin/env bash

# https://hub.docker.com/r/kylemanna/openvpn/

OVPN_DATA="openvpn_data"      # Docker volume name
OVPN_HOST="vpn.hostname.org"  # Server hostname
OVPN_USER="peter_the_pig"     # Client username

# init
docker volume create --name $OVPN_DATA

docker run -v $OVPN_DATA:/etc/openvpn \
  --rm kylemanna/openvpn ovpn_genconfig \
  -u udp://$OVPN_HOST
  
docker run -v $OVPN_DATA:/etc/openvpn \
  --rm -it kylemanna/openvpn ovpn_initpki

# start
docker run -v $OVPN_DATA:/etc/openvpn \
  -d -p 1194:1194/udp --cap-add=NET_ADMIN \
  --restart unless-stopped --name=openvpn \
  kylemanna/openvpn

# Generate a client certificate without a passphrase
docker run -v $OVPN_DATA:/etc/openvpn \
  --rm -it kylemanna/openvpn easyrsa build-client-full \
  $OVPN_USER@$OVPN_HOST nopass

# Retrieve the client configuration with embedded certificates
docker run -v $OVPN_DATA:/etc/openvpn \
  --rm kylemanna/openvpn ovpn_getclient \
  $OVPN_USER@$OVPN_HOST > $OVPN_USER@$OVPN_HOST.ovpn