coredns-7f9c544f75-lh6sx启动一直pending

使用kubectl get pods -n kube-system 查看如下

coredns 一直是pending 。

经查阅资料发现coredns 最大可能是缺少网络插件导致，本文选择kube-flannel.yml方式来安装

创建文件 kube-flannel.yml，将下面内容复制并保存

---

apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
name: psp.flannel.unprivileged
annotations:
seccomp.security.alpha.kubernetes.io/allowedProfileNames: docker/default
seccomp.security.alpha.kubernetes.io/defaultProfileName: docker/default
apparmor.security.beta.kubernetes.io/allowedProfileNames: runtime/default
apparmor.security.beta.kubernetes.io/defaultProfileName: runtime/default
spec:
privileged: false
volumes:

• configMap
• secret
• emptyDir
• hostPath
  allowedHostPaths:
• pathPrefix: “/etc/cni/net.d”
• pathPrefix: “/etc/kube-flannel”
• pathPrefix: “/run/flannel”
  readOnlyRootFilesystem: false
  runAsUser:
  rule: RunAsAny
  supplementalGroups:
  rule: RunAsAny
  fs