def Apply(self):
"""
Transition method for removing rules applied for the previous configuration of the router.
:return:
"""
regles_deprecated = Regles.objects.filter((Q(source=self) | Q(destination=self)) & Q(etat="Deprecated"))
regles_production = Regles.objects.filter((Q(source=self) | Q(destination=self)) & Q(etat="Production")).values("regle")
regles_invalides = regles_deprecated.exclude(Q(regle__in=regles_production))
deployment = RulesDeployment()
deployment.remove_rules(regles_invalides)
regles_deprecated.delete()
def Deploy(self):
"""
Transition method for deploy a router in the topology, pushing all the rules necessary.
:return:
"""
if self.valid is True:
manager = Manager()
manager.create_rules(Switch.objects.all())
deployment = RulesDeployment()
deployment.send_rules(Switch.objects.all())
else:
raise Exception("Not a valid router.")
def Prepare(self):
"""
Transition method for moving the rules of the previous configuration into a special state,
and applies rules for the new configuration.
:return:
"""
regles = Regles.objects.filter(Q(source=self) | Q(destination=self))
for regle in regles:
regle.ChangeRulesStatus()
regle.save()
manager = Manager()
manager.create_rules(Switch.objects.all())
deployment = RulesDeployment()
deployment.send_rules(Switch.objects.all())
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))
def form_valid(self, form):
rules_deployment = RulesDeployment()
context = rules_deployment.send_rules(Switch.objects.all())
return render(self.request, "rules_success.html", context=context)
