- Ready ではない Pod の一覧と理由を表示する
```shell-session
$ kubectl sick-pods -A
'kube-system/elasticsearch-869b79886f-hb2fk' is not ready! Reason Provided: None
Failed Pod Conditions:
CONDITION REASON MESSAGE
Ready ContainersNotReady containers with unready status: [elasticsearch]
ContainersReady ContainersNotReady containers with unready status: [elasticsearch]
Pod Events:
LAST SEEN TYPE REASON MESSAGE
2020-08-08 11:02:59 +0900 JST Normal BackOff Back-off pulling image "elasticsearch"
2020-08-08 11:12:57 +0900 JST Warning Failed Error: ImagePullBackOff
Container 'elasticsearch' is not ready!
Container Logs:
Errored Getting Logs: streaming log results: container "elasticsearch" in pod "elasticsearch-869b79886f-hb2fk" is waiting to start: trying and failing to pull image
'kube-system/kibana-779c44ff4d-cpctj' is not ready! Reason Provided: None
Failed Pod Conditions:
CONDITION REASON MESSAGE
Ready ContainersNotReady containers with unready status: [kibana]
ContainersReady ContainersNotReady containers with unready status: [kibana]
Pod Events:
LAST SEEN TYPE REASON MESSAGE
2020-08-08 10:52:20 +0900 JST Normal BackOff Back-off pulling image "kibana"
2020-08-08 11:12:21 +0900 JST Warning Failed Error: ImagePullBackOff
Container 'kibana' is not ready!
Container Logs:
Errored Getting Logs: streaming log results: container "kibana" in pod "kibana-779c44ff4d-cpctj" is waiting to start: image can't be pulled
```