现象

kubectl get pod nginx-ingress-intranet-default-backend-7c554d94cb-979z6 -n kube-system
... ...
省略
... ... 
  Type     Reason   Age                    From               Message
  ----     ------   ----                   ----               -------
  Warning  Failed   18m (x3827 over 21h)   kubelet, k8snode2  Error: ImagePullBackOff
  Normal   BackOff  13m (x3848 over 21h)   kubelet, k8snode2  Back-off pulling image "k8s.gcr.io/defaultbackend-amd64:1.5"
  Warning  Failed   8m58s (x194 over 21h)  kubelet, k8snode2  Error: ErrImagePull
  Normal   Pulling  3m52s (x195 over 21h)  kubelet, k8snode2  Pulling image "k8s.gcr.io/defaultbackend-amd64:1.5"

解决办法

修改ErrImagePull镜像地址

# 修改前
image: k8s.gcr.io/defaultbackend-amd64:1.5
# 修改后
image: mirrorgooglecontainers/defaultbackend-amd64:1.5