[root@k8s-master demo]# kubectl get pod
NAME READY STATUS RESTARTS AGE
busybox 0/1 ContainerCreating 0 12m
[root@k8s-master demo]# kubectl describe pod busybox
Name: busybox
Namespace: default
Node: k8s-node-1/10.0.0.12
Start Time: Thu, 07 Jun 2018 09:53:48 +0800
Labels: <none>
Status: Pending
IP:
Controllers: <none>
Containers:
busybox:
Container ID:
Image: 10.0.0.10:5000/busybox
Image ID:
Port:
Command:
sleep
3600
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
--------- -------- ----- ---- ------------- -------- ------ -------
15m 15m 1 {default-scheduler } Normal Scheduled Successfully assigned busybox to k8s-node-1
15m 22s 64 {kubelet k8s-node-1} 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\""
15m 11s 8 {kubelet k8s-node-1} 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)"
看到registry.access.redhat.com/rhel7/pod-infrastructure:latest感觉很奇怪，我设置的仓库是grc.io，为什么去拉取这个镜像，怀疑是不是什么没有安装好。尝试运行docker pull registry.access.redhat.com/rhel7/pod-infrastructure:latest，提示redhat-ca.crt: no such file or directory。ls查看改文件是个软连接，链接目标是/etc/rhsm，查看没有rhsm，尝试安装yum install *rhsm*，出现相关软件，感觉比较符合，所以安装查看产生了/etc/rhsm文件夹。
再次运行kubectl get pods
NAME READY STATUS RESTARTS AGEredis-master-qhd12 1/1 Running 0 13m