Y48. Chapter III kubernetes from introduction to mastery -- pod status and probe (21)

8.Pod Status and probe of

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

8.1 Pod state

 The first stage ：
Pending:
# Creating Pod however Pod All the containers in have not been created yet , In this state Pod Should check Pod Whether the dependent storage has permission to mount 、 Whether the image can be downloaded 、 Whether the dispatching is normal .

Failed
#Pod There is a container in that failed to start, resulting in pod Abnormal work .

Unknown
# For some reason... Cannot be obtained pod Current state , Usually due to pod Where node Node communication error .

Succeeded
#Pod All containers in have been successfully terminated, i.e pod All in containers All have terminated.

 The second stage ：
Unschedulable：
#Pod Can't be scheduled ,kube-scheduler There is no match for node node 

PodScheduled
#pod Under scheduling , stay kube-scheduler At the beginning of scheduling , Not yet. pod Assign to assigned pid, It will be updated after the appropriate nodes are filtered out etcd data , take pod Assign to assigned pod

Initialize