Pia

bashrc

alias pia="sudo ip netns exec pia sudo -u peter"

netns.sh

#!/bin/bash
case $script_type in
        up)
        ip netns add pia
        ip link set dev "$1" up netns pia mtu "$2"
        ip netns exec pia ip link set dev lo up
        ip netns exec pia ip addr add dev "$1" local "$4" peer "$5"
        ;;
        route-up)
        ip netns exec pia ip route add default via "$route_vpn_gateway"
        ;;
        down)
        ip netns delete pia
        ;;
esac

pia.ovpn

# append this to your ovpn file
route-noexec
ifconfig-noexec
up /etc/openvpn/netns.sh
down /etc/openvpn/netns.sh
route-up /etc/openvpn/netns.sh
script-security 2