Remove dependency on kube-rbac-proxy
by adopting controller-runtime's native authn/authz for metrics
#1226
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Overview
This PR removes the soon-to-be deprecated
kube-rbac-proxy
dependency and replaces it with Controller-Runtime's built-in authentication and authorization for securing the metrics endpoint. This simplifies setup, enhances security, and follows the latest Kubebuilder best practices.Key Changes
kube-rbac-proxy
dependency.cert-manager
integration to secure metrics with TLS encryption.Fixes #1203
Ref:
kubernetes-sigs/kubebuilder#3907
kubernetes-sigs/controller-runtime#2407
kubernetes-sigs/kubebuilder#4400
kubernetes-sigs/kubebuilder#4558
kubernetes-sigs/kubebuilder/docs/reference/metrics (v4.5.0)