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ecaad2c6e4
kube-router v2.X introduced the idea of iptables and ipset handlers that allow kube-router to be dual-stack capable. However, the cleanup logic for the various controllers was not properly ported when this happened. When the cleanup functions run, they often have not had their controllers fully initialized as cleanup should not be dependant on kube-router being able to reach a kube-apiserver. As such, they were missing these handlers. And as such they either silently ended up doing noops or worse, they would run into nil pointer failures. This corrects that, so that kube-router no longer fails this way and cleans up as it had in v1.X.