AddDHCP_docker.sh

#!/bin/sh

# docker run -d --hostname clarisse --network none alpine tail -f /dev/null

CONTAINER=$1
NETNS=$(basename `docker inspect $CONTAINER | jq -r ".[]|.NetworkSettings.SandboxKey"`)
HOSTNAME=$(docker inspect $CONTAINER | jq -r '.[]|.Config.Hostname')

ip link add indocker0 type veth peer name outdock0
# ip link set dev indock0 address de:de:00:00:00:03
ip link set outdock0 master br0
ip link set indocker0  netns $NETNS
ip link set outdock0 up
ip -n $NETNS link set indock0 up
# ip netns exec $NETNS ip a s
echo 'send host-name "'$HOSTNAME'";' | ip netns exec $NETNS dhclient -cf - indocker0
sleep 5
ip netns exec $NETNS ip a s dev indocker0