#!/bin/sh

br_name=br100
brctl addbr $br_name
ip addr add 192.168.X.X/D dev $br_name
ip addr del 192.168.X.X/D dev eth0
ip link set $br_name up
brctl addif $br_name eth0
ip route del default
ip route add default via X.X.X.X dev $br_name

#!/bin/sh


br_name=br100
gateway='x.x.x.x'

function run_docker()
{
    #docker run -t -i -d --name="net_test" --net=none jdeathe/centos-ssh /bin/bash
    cid=$(docker run  -i -t -d --name=$1  --net=none  $3 /bin/bash)
    pid=$(docker inspect -f '{{.State.Pid}}' $cid)
    # set up netns
    mkdir -p /var/run/netns
    ln -s /proc/$pid/ns/net /var/run/netns/$pid
    # set up bridge
    ip link add q$pid type veth peer name r$pid
    brctl addif $br_name q$pid
    ip link set q$pid up
    # set up docker interface
    fixed_ip=$2
    ip link set r$pid netns $pid
    ip netns exec $pid ip link set dev r$pid name eth0
    ip netns exec $pid ip link set eth0 up
    ip netns exec $pid ip addr add $fixed_ip dev eth0
    ip netns exec $pid ip route del default
    ip netns exec $pid ip route add default via $gateway
}

echo "Usage: ./docker -f demo-data"
while getopts :f:h file_name
do
    case $file_name in
    f) cat $OPTARG | while read line
        do
                arr_var=(${line})
                run_docker ${arr_var[0]}  ${arr_var[1]} ${arr_var[2]}
        done 
        ;;
    h) echo "Usage: ./docker -f demo-data"  
            exit 1
            ;;
        \?) echo "Usage: ./docker -f demo-data"  
            exit 1  
            ;;  
    :) echo "Usage: ./docker -f demo-data"  
            exit 1
            ;;
    esac
done