Enable Service Topology on k8s

Question

I\'m using k8s with kubeadm version 1.17. I\'m trying to enable Service Topology feature gates but I can\'t. Documentation say to use \"--feature-gates=\"ServiceTopology=tru

Answer 1

In my case (kubeadm version 1.18.2), it works with the following kubeadm configuration .yaml file (podSubnet is there because I am using Flannel CNI). The key of kube-proxy is "featureGates" as mentioned in https://godoc.org/k8s.io/kube-proxy/config/v1alpha1#KubeProxyConfiguration

---
apiVersion: kubeadm.k8s.io/v1beta2
kind: ClusterConfiguration
apiServer:
  extraArgs:
    feature-gates: "ServiceTopology=true,EndpointSlice=true"
controllerManager:
  extraArgs:
    feature-gates: "ServiceTopology=true,EndpointSlice=true"
scheduler:
  extraArgs:
    feature-gates: "ServiceTopology=true,EndpointSlice=true"
networking:
   podSubnet: "10.244.0.0/16"

---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
featureGates:
  ServiceTopology: true
  EndpointSliceProxying: true