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#!/usr/bin/env bash
# Copyright (c) 2016 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
if [ $USER != "root" ] ; then
#echo "Restarting script with sudo..."
sudo $0 ${*}
exit
fi
cone_IP=$1
cone_GW=$2
ctwo_IP=$3
ctwo_GW=$4
containers=( cone ctwo )
idx=1
# Restart VPP so there is no config
service vpp restart
for cntr in "${containers[@]}"
do
#stop the container
echo "stopping container $cntr"
sudo lxc-stop -n $cntr
done
# LXC gives backend interfaces horrible names, give them a better name.
function rename_veth_interface() {
local cntr="$1"
local nifname="$2"
ifr_index=`sudo lxc-attach -n $cntr -- ip -o link | tail -n 1 | awk -F : '{print $1}'`
ifr_index=$((ifr_index+1))
for dir in /sys/class/net/*/
do
ifindex=`cat $dir/ifindex`
if [ $ifindex == $ifr_index ]
then ifname=`basename $dir`
fi
done
sudo ip link set $ifname down
sudo ip link set $ifname name $nifname
sudo ip link set $nifname up
}
for cntr in "${containers[@]}"
do
cip=$cntr\_IP
cgw=$cntr\_GW
#start the container
sudo lxc-start -n $cntr -d
#give the backend of our veth a sensible name.
rename_veth_interface $cntr "link"$idx
#start vpp in the container.
#sudo lxc-attach -n $cntr service vpp start
#setup the inteface in the container
sudo lxc-attach -n $cntr -- \
bash -c "
ip link set dev lo up
ip addr add ${!cip} dev veth_link1
ip link set dev veth_link1 up
ip route add default via ${!cgw} dev veth_link1"
idx=$((idx+1))
done
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