Kubernetes集群中处于待定状态的Coredns [英] Coredns in pending state in Kubernetes cluster

问题描述

我正在尝试配置2节点Kubernetes集群.首先，我尝试在CentOS VM上配置集群的主节点.我已经使用'kubeadm init --apiserver-advertise-address = 172.16.100.6 --pod-network-cidr = 10.244.0.0/16'初始化了集群，并将法兰网部署到了集群.但是当我执行"kubectl获取节点"时，我得到以下输出----

I am trying to configure a 2 node Kubernetes cluster. First I am trying to configure the master node of the cluster on a CentOS VM. I have initialized the cluster using 'kubeadm init --apiserver-advertise-address=172.16.100.6 --pod-network-cidr=10.244.0.0/16' and deployed the flannel network to the cluster. But when I do 'kubectl get nodes', I get the following output ----

[root@kubernetus ~]# kubectl get nodes
NAME         STATUS     ROLES    AGE   VERSION
kubernetus   NotReady   master   57m   v1.12.0

以下是"kubectl get pods --all-namespaces -o wide"的输出

Following is the output of 'kubectl get pods --all-namespaces -o wide ' ----

[root@kubernetus ~]# kubectl get pods --all-namespaces -o wide
NAMESPACE     NAME                                 READY   STATUS    RESTARTS   AGE   IP             NODE         NOMINATED NODE
kube-system   coredns-576cbf47c7-9x59x             0/1     Pending   0          58m   <none>         <none>       <none>
kube-system   coredns-576cbf47c7-l52wc             0/1     Pending   0          58m   <none>         <none>       <none>
kube-system   etcd-kubernetus                      1/1     Running   2          57m   172.16.100.6   kubernetus   <none>
kube-system   kube-apiserver-kubernetus            1/1     Running   2          57m   172.16.100.6   kubernetus   <none>
kube-system   kube-controller-manager-kubernetus   1/1     Running   1          57m   172.16.100.6   kubernetus   <none>
kube-system   kube-proxy-hr557                     1/1     Running   1          58m   172.16.100.6   kubernetus   <none>
kube-system   kube-scheduler-kubernetus            1/1     Running   1          57m   172.16.100.6   kubernetus   <none>

coredns很长时间处于挂起状态.我已经删除了docker和kubectl，kubeadm，kubelet，没有次数&尝试重新创建集群，但是每次显示相同的输出时.有人可以帮我解决这个问题吗?

coredns is in a pending state for a very long time. I have removed docker and kubectl, kubeadm, kubelet a no of times & tried to recreate the cluster, but every time it shows the same output. Can anybody help me with this issue?

推荐答案

尝试安装Pod网络附加组件(基于

Try to install Pod network add-on (Base on this guide).

运行此行:

kubectl apply -f https://docs.projectcalico.org/v3.14/manifests/calico.yaml

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