setup

#!/bin/sh

cd "$(dirname "$(readlink -f "$0")")"
. ../common/lab-setup

spawn vm C1 network 1           # Clients
spawn vm LB network 1,2         # LB

# Backends
NB=3
for i in $(seq 1 $NB); do
    spawn vm S$i network 2
done

run

case $uts in
    C1)
        ip addr add 203.0.113.10/24 dev eth0

        # Additional IP to be used as source
        for i in $(seq 100 200); do
            ip addr add 203.0.113.$i/32 dev lo
        done
        ;;
    LB)
        ip addr add 203.0.113.15/24 dev eth0
        ip addr add 10.234.79.1/24 dev eth1
        ip route add default via 203.0.113.10
        sysctl -qw net/ipv4/ip_forward=1

        # Setup IPVS
        modprobe ip_vs
        [ ! -f ip_vs_mh.ko ] || insmod ./ip_vs_mh.ko
        sysctl -qw net/ipv4/vs/debug_level=7 || true
        ipvsadm -A -t 203.0.113.15:80 -s mh
        for i in $(seq 1 $NB); do
            ipvsadm -a -t 203.0.113.15:80 -r 10.234.79.$((10+i)):80 -m
        done
        ;;
    S*)
        ip addr add 10.234.79.$((10 + ${uts#S}))/24 dev eth0
        ip route add default via 10.234.79.1
        ;;
esac
service nginx


# Checking CSH table:
#  =dmesg --notime | tac \
#      | sed -n '0,/Enter: ip_vs_new_dest/p' \
#      | grep  CSH  | awk '{print $5" "$7}' \
#      | sort -n