Docker K8s 04 kubectl create 之后一直处于 Pending 状态

错误描述

在使用 kubectl create 创建 pod 服务之后, kubectl describe pods 查看状态, 可能会发现一直处于等待中状态.

Status:	Pending
Reason: ContainerCreating

Error syncing pod, skipping: failed to "StartContainer" for "POD" with \
ErrImagePull: "image pull failed for registry.access.redhat.com/rhel7/pod-infrastructure:latest, this may be because there are no credentials on this request.  details: (open /etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file or directory)

详细的信息大致如下:

Name:		nginx-controller-8pxdt
Namespace:	default
Node:		192.168.1.9/192.168.1.9
Start Time:	Sun, 08 Dec 2019 12:27:40 +0800
Labels:		name=nginx
Status:		Pending
IP:
Controllers:	ReplicationController/nginx-controller
Containers:
  nginx:
    Container ID:
    Image:			nginx
    Image ID:
    Port:			80/TCP
    State:			Waiting
      Reason:			ContainerCreating
    Ready:			False
    Restart Count:		0
    Volume Mounts:		<none>
    Environment Variables:	<none>
Conditions:
  Type		Status
  Initialized 	True
  Ready 	False
  PodScheduled 	True
No volumes.
QoS Class:	BestEffort
Tolerations:	<none>
Events:
  FirstSeen	LastSeen	Count	From			SubObjectPath	Type		Reason		Message
  ---------	--------	-----	----			-------------	--------	------		-------
  17m		17m		1	{default-scheduler }			Normal		Scheduled	Successfully assigned nginx-controller-8pxdt to 192.168.1.9
  17m		1m		8	{kubelet 192.168.1.9}			Warning		FailedSync	Error syncing pod, skipping: failed to "StartContainer" for "POD" with ErrImagePull: "image pull failed for registry.access.redhat.com/rhel7/pod-infrastructure:latest, this may be because there are no credentials on this request.  details: (open /etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file or directory)"

  17m	10s	73	{kubelet 192.168.1.9}		Warning	FailedSync	Error syncing pod, skipping: failed to "StartContainer" for "POD" with ImagePullBackOff: "Back-off pulling image \"registry.access.redhat.com/rhel7/pod-infrastructure:latest\""