Lease metrics does not support --namespace and --namespace-denylist

[ntoofu]

What happened:

Command line options such as --namespaces and --namespaces-denylist does not work against --resources=leases, though Lease is a namespaced resource.

What you expected to happen:

kube-state-metrics returns only metrics of leases in namespaces specified by --namespaces.

How to reproduce it (as minimally and precisely as possible):

• metrics reports leases in namespaces other than kube-system, even if --namespaces=kube-system is given

$ kube-state-metrics --port=8080 --kubeconfig=$KUBECONFIG --namespaces=kube-system --resources=leases &

$ curl localhost:8080/metrics 2>/dev/null | grep -v 'namespace="kube-system"' | tail -n 3 
kube_lease_renew_time{lease="cilium-md-0-847944c6c6x9n889-799vh",namespace="kube-node-lease"} 1.689881244e+09
kube_lease_renew_time{lease="cilium-tqhs4",namespace="kube-node-lease"} 1.689881247e+09
kube_lease_renew_time{lease="cilium-md-0-847944c6c6x9n889-l8ctn",namespace="kube-node-lease"} 1.689881252e+09

• metrics reports leases in the kube-system namespace, even if --namespaces-denylist=kube-system is given

$ kube-state-metrics --port=8080 --kubeconfig=$KUBECONFIG --namespaces-denylist=kube-system --resources=leases &

$ curl localhost:8080/metrics 2>/dev/null | grep 'namespace="kube-system"' | tail -n 3                              
kube_lease_renew_time{lease="cilium-operator-resource-lock",namespace="kube-system"} 1.689881395e+09
kube_lease_renew_time{lease="kube-controller-manager",namespace="kube-system"} 1.689881395e+09
kube_lease_renew_time{lease="kube-apiserver-kkvgiharvdf7dkbupwkxj5ggma",namespace="kube-system"} 1.689881388e+09

Anything else we need to know?:

Environment:

• kube-state-metrics version: kube-state-metrics, version v2.9.2 (branch: main, revision: 3fb1e86c)
• Kubernetes version (use kubectl version): Server Version: version.Info{Major:"1", Minor:"26", GitVersion:"v1.26.2", GitCommit:"fc04e732bb3e7198d2fa44efa5457c7c6f8c0f5b", GitTreeState:"clean", BuildDate:"2023-02-22T13:32:22Z", GoVersion:"go1.19.6", Compiler:"gc", Platform:"linux/amd64"}
• Cloud provider or hardware configuration: cluster provisioned with cluster-api-provider-vsphere
• Other info:

[k8s-ci-robot]

This issue is currently awaiting triage.

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