K8S Pod ImagePullBackOff解决办法

K8S Pod ImagePullBackOff

[root@hdss7-201 ~]# kubectl get pods -n kube-system
NAME                                   READY   STATUS             RESTARTS   AGE
coredns-6b6c4f9648-fxwvh               1/1     Running            1          69d
heapster-b5b9f794-68b22                0/1     ImagePullBackOff   0          9m46s
kubernetes-dashboard-67989c548-d99d4   1/1     Running            0          23d
traefik-ingress-4nzcw                  1/1     Running            1          64d
traefik-ingress-vsk6h                  1/1     Running            1          64d

原因：本地镜像未下载，重新将镜像下载到本地，然后上传harbor
解决办法：

[root@hdss7-201 ~]# systemctl restart docker

重新查看k8s状态：

[root@hdss7-201 ~]# kubectl get pods -n kube-system
NAME                                   READY   STATUS    RESTARTS   AGE
coredns-6b6c4f9648-fxwvh               1/1     Running   1          69d
heapster-b5b9f794-68b22                1/1     Running   0          12m
kubernetes-dashboard-67989c548-d99d4   1/1     Running   0          23d
traefik-ingress-4nzcw                  1/1     Running   1          64d
traefik-ingress-vsk6h                  1/1     Running   1          64d