docker-vpn/start-openvpn.sh

#!/usr/bin/env sh

create_net_dev() {
    mkdir -p /dev/net
    mknod /dev/net/tun c 10 200
    chmod 600 /dev/net/tun
}

connect_vpn() {
    openvpn --config "$OVPN_CONFIGURATION_FILE" --daemon
}

switch_user() {
    cd "$OVPN_HOME"
    su "$OVPN_USER"
}

create_net_dev
connect_vpn
switch_user