Error: token failed, reason: getaddrinfo EAI_AGAIN ks-apiserver

Edit coredns configuration information

kubectl -n kube-system edit cm coredns -o yaml

Comment out ：

# forward . /etc/resolv.conf {
# max_concurrent 1000
#}

View coredns pod

kubectl get pods -n kube-system | grep core

Delete these two, The system will automatically rebuild

kubectl delete pod coredns-6d8c4cb4d-kvtp5 -n kube-system
kubectl delete pod coredns-6d8c4cb4d-tr22x -n kube-system

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