为什么我执行 cmd 'kubectl get pods'，pod 状态是 'NotReady'？ 不合理，这个状态属于节点状态

Question

ref: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/

but the cmd result is(pod:two-containers status is NotReady ):

[root@devnet-master ~]# kubectl get pods
NAME                             READY   STATUS     RESTARTS   AGE
busybox-1                        1/1     Running    1          33d
local-volume-provisioner-k49c7   1/1     Running    0          29m
nginx                            2/2     Running    1          21m
two-containers                   1/2     NotReady   0          61m

the version is:

[root@devnet-master ~]# kubectl version
Client Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.1", GitCommit:"5e58841cce77d4bc13713ad2b91fa0d961e69192", GitTreeState:"clean", BuildDate:"2021-05-12T14:18:45Z", GoVersion:"go1.16.4", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.1", GitCommit:"5e58841cce77d4bc13713ad2b91fa0d961e69192", GitTreeState:"clean", BuildDate:"2021-05-12T14:12:29Z", GoVersion:"go1.16.4", Compiler:"gc", Platform:"linux/amd64"}

describe pod result is : exec describe pod result image

apply yaml is: apply yaml image

apiVersion: v1
kind: Pod
metadata:
  name: two-containers
spec:
  restartPolicy: Never
  volumes:
  - name: shared-data
    hostPath:      
      path: /data
  containers:
  - name: nginx-container
    image: xxxxxx/nginx:1.0
    volumeMounts:
    - name: shared-data
      mountPath: /usr/share/nginx/html
  - name: debian-container
    image: xxxxxx/debian:stable
    volumeMounts:
    - name: shared-data
      mountPath: /pod-data
    command: ["/bin/sh"]
    args: ["-c", "echo Hello from the debian container > /pod-data/index.html"]

Answer 1

• Pod is being shown in ready status because as per the screenshot you have provided it is a multi container pod. Second container naemd "debian- container" is in "completed" state because it just had to execute a echo command. I suspect you have set the restartPolicy as Onfailure or Never so the pod is not restarting. But one of the container inside the pod is in running state but the other is not. Hence pod status is in "NotReady"
• "1/2" under "Ready" column in kubectl get pods also indicates the same that only container is in ready state out of two.