def pre_delete_hote(sender, **kwargs):
"""
Clean-up all traces of the router in the Database.
:param sender:
:param kwargs:
:return:
"""
# Retrieve all flux where the deleted host is present
flux_list = Flux.objects.filter(Q(hote_src=kwargs['instance']) | Q(hote_dst=kwargs['instance']))
# Remove stats from these flux
Stats.objects.filter(idflux__in=flux_list).delete()
# delete flux
flux_list.delete()
# remove rules for designated host
deployment = RulesDeployment()
deployment.remove_host([kwargs['instance']])
# Remove host from the BGP configuration
render_conf_hosts(Hote.objects.exclude(idhote=kwargs['instance'].idhote))
