a playbook to configure a host only by its mac address

conv_mac2ll.py

#!/usr/local/bin/python

def mac2ll(mac):
    mac = mac.split(":")
    mac.insert(3,'fe')
    mac.insert(3,'ff')
    mac[0] = str(int(mac[0]) ^ 6)
    return "fe80::%s:%s:%s:%s" % ("".join(mac[0:2]),"".join(mac[2:4]),"".join(mac[4:6]),"".join(mac[6:8]))


class FilterModule(object):
    ''' Ansible network jinja2 filters '''
    def filters(self):
        return {
            'mac2ll': mac2ll
            }

interfaces

auto lo
iface lo inet loopback

# The primary network interface
auto  eth0
iface eth0 inet static
  address   192.168.122.{{ id }}
  broadcast 192.168.122.255
  netmask   255.255.255.0
  gateway   192.168.122.1

iface eth0 inet6 static
  address 2a01:4f8:200:2265:3:100::{{ id }}
  netmask 64
  gateway fe80::5054:ff:fe9f:c3e4

network.yaml

---
- hosts: linux_guests
  vars:
    ansible_ssh_host: "{{ mac|mac2ll }}%vtnet0"
  tasks:
    - name: write sysctl.conf to the disk
      copy: src=../templates/network/sysctl.conf dest=/etc/sysctl.conf
    - name: write resolv.conf to the disk
      copy: src=../templates/network/resolv.conf dest=/etc/resolv.conf
    - name: write /etc/network/interfaces
      template: src=../templates/network/interfaces dest=/etc/network/interfaces
    - name: write /root/startping.sh
      copy: src=../templates/network/startping.sh dest=/root/startping.sh mode=u+rx
    - name: Make sure tmux is installed
      apt: name=tmux state=present
    - name: restart networking
      shell: "/sbin/ifdown eth0; /sbin/ifup eth0"
    - name: start startping
      command: "/root/startping.sh"
    - name: install startping as cronjob
      cron: name="startping" special_time="reboot" job="/root/startping.sh"

resolve.conf

nameserver 192.168.122.1
search int.datenknoten.me

startping.sh

#!/bin/sh
tmux new-session -d -s ping
tmux select-pane -t ping
tmux send-keys "/bin/ping6 -i 10 2a01:4f8:200:2265:2::1" C-m

sysctl.conf

net.ipv6.conf.all.accept_ra=0
net.ipv6.conf.all.autoconf=0