create_credentials() {
    if [ ! -f /etc/openvpn/client/nordvpn/credentials.conf ]; then
        echo "login" > /etc/openvpn/client/nordvpn/credentials.conf
        echo "password" >> /etc/openvpn/client/nordvpn/credentials.conf
        chmod 400 /etc/openvpn/client/nordvpn/credentials.conf
        echo "Please update /etc/openvpn/client/nordvpn/credentials.conf"
    fi
}

post_install() {
    create_credentials
}

post_upgrade() {
    create_credentials
}

pre_remove() {
    nordvpn stop
}

post_remove() {
    rm -rf /etc/openvpn/client/nordvpn
}