dnsmasq dhcp lease watch by dbus signals

hook.py

import dbus
dnsmasq = dbus.SystemBus().get_object("uk.org.thekelleys.dnsmasq", "/uk/org/thekelleys/dnsmasq")
dnsmasq.AddDhcpLease("192.168.0.12","00:11:22:33:44:55",dbus.ByteArray(),dbus.ByteArray(),dbus.UInt32(5),dbus.UInt32(0),False)
dnsmasq.DeleteDhcpLease("192.168.0.12")

listener.py

import dbus
import functools
from gi.repository import GLib
from dbus.mainloop.glib import DBusGMainLoop

DBusGMainLoop(set_as_default=True)
dnsmasq = dbus.SystemBus().get_object("uk.org.thekelleys.dnsmasq", "/uk/org/thekelleys/dnsmasq")

def func(*args, **kwargs):
	print(args, kwargs)

for m in ("DhcpLeaseAdded", "DhcpLeaseDeleted", "DhcpLeaseUpdated"):
	dnsmasq.connect_to_signal(m, functools.partial(func, m))

GLib.MainLoop().run()

Vagrantfile

Vagrant.configure("2") do |config|
  config.vm.box = "minimal/xenial64"
  config.vm.provision "file", source: "listener.py", destination: "listener.py"
  config.vm.provision "file", source: "hook.py", destination: "hook.py"
  config.vm.provision "shell", inline: <<-SHELL
    apt-get update -y
    apt-get install -y python-dbus dnsmasq libglib2.0-bin
    echo "enable-dbus" >> /etc/dnsmasq.d/dbus.conf
    echo "dhcp-range=192.168.0.2,192.168.0.31" >> /etc/dnsmasq.d/dbus.conf
    systemctl restart dnsmasq
  SHELL
end