#!/usr/bin/env bash

if [ ${MODE} == "start" ]
then
    set -ue
elif [ ${MODE} == "stop" ]
then
    set -u
else
    echo "$(basename ${0}): mode must be one of either 'start' or 'stop'" 1>&2
    exit 1
fi

case ${PHASE} in
    "pre-up")
        /usr/sbin/ip netns exec {{ services_service_user_name }} /usr/sbin/sysctl -q -w net.ipv6.conf.veth0.autoconf=0

        /usr/sbin/ip -n {{ services_service_user_name }} -4 address add {{ services_service_iface_inet_address }}/{{ services_service_iface_inet_prefixlen }} dev veth0
        /usr/sbin/ip -n {{ services_service_user_name }} -6 address add {{ services_service_iface_inet6_address }}/{{ services_service_iface_inet6_prefixlen }} dev veth0 nodad
        ;;
    "post-up")
        /usr/sbin/ip -n {{ services_service_user_name }} link set dev veth0 up

        /usr/sbin/ip -n {{ services_service_user_name }} -4 route add default via {{ services_bridge_inet_gateway }} dev veth0
        /usr/sbin/ip -n {{ services_service_user_name }} -6 route add default via {{ services_bridge_inet6_gateway }} dev veth0
        ;;
    "pre-down")
        /usr/sbin/ip -n {{ services_service_user_name }} -6 route del default via {{ services_bridge_inet6_gateway }} dev veth0
        /usr/sbin/ip -n {{ services_service_user_name }} -4 route del default via {{ services_bridge_inet_gateway }} dev veth0

        /usr/sbin/ip -n {{ services_service_user_name }} link set dev veth0 down
        ;;
    "post-down")
        /usr/sbin/ip -n {{ services_service_user_name }} -6 address flush dev veth0
        /usr/sbin/ip -n {{ services_service_user_name }} -4 address flush dev veth0
        ;;
esac