K8S Pod 一直处于 Pending 状态
有几个原因可以阻止 Pod 运行，但我们将描述三个主要问题：
- 调度问题：无法在任何节点上调度 Pod。
- 镜像问题：下载容器镜像时出现问题。
- 依赖性问题：Pod 需要一个卷、Secret 或 ConfigMap 才能运行。
[root@k8smaster ~]# kubectl describe pod Node-Selectors: <none> Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s node.kubernetes.io/unreachable:NoExecute for 300s Events: Type Reason Age From Message ---- ------ ---- ---- ------- Warning FailedScheduling 12h default-scheduler 0/3 nodes are available: 1 node(s) had taint {node-role.kubernetes.io/master: }, that the pod didn't tolerate, 2 Insufficient cpu. Warning FailedScheduling 10m default-scheduler 0/3 nodes are available: 1 node(s) had taint {node-role.kubernetes.io/master: }, that the pod didn't tolerate, 2 Insufficient cpu.
# 调小配置 resources: limits: cpu: 200m memory: 256Mi requests: cpu: 200m memory: 10Mi
