• 查看pod详情

kubectl describe pod nginx --namespace=default

  Type     Reason                  Age                  From               Message
  ----     ------                  ----                 ----               -------
  Warning  FailedCreatePodSandBox  18m                  kubelet            Failed to create pod sandbox: rpc error: code = Unknown desc = [failed to set up sandbox container "e2f6c863f35f9d597fa7989883409ad3d23e3c2cb723a41695dadffdaaf3b0a2" network for pod "nginx": networkPlugin cni failed to set up pod "nginx_default" network: error getting ClusterInformation: Get "https://[10.96.0.1]:443/apis/crd.projectcalico.org/v1/clusterinformations/default": x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes"), failed to clean up sandbox container "e2f6c863f35f9d597fa7989883409ad3d23e3c2cb723a41695dadffdaaf3b0a2" network for pod "nginx": networkPlugin cni failed to teardown pod "nginx_default" network: error getting ClusterInformation: Get "https://[10.96.0.1]:443/apis/crd.projectcalico.org/v1/clusterinformations/default": x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes")]

解决办法：重新安装我们网络插件calico

kubectl apply -f calico.yaml

等我们的插件运行完成后再去创建pod 

重新创建pod：

kubectl apply -f nginx_pod.yaml 

 查看pod已被创建成功：