Back-off pulling image \"registry.access.redhat.com/rhel7/pod-infrastructure:latest

Error syncing pod, skipping: failed to "StartContainer" for "POD" with ImagePullBackOff: "Back-off pulling image \"registry.access.redhat.com/rhel7/pod-infrastructure:latest\"" 
[root@master ~]#
手动下载 
[root@master ~]# docker pull registry.access.redhat.com/rhel7/pod-infrastructure:latest 
Trying to pull repository registry.access.redhat.com/rhel7/pod-infrastructure … 
open /etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file or directory 
[root@master ~]#
解决方法 
[root@master ~]# yum install *rhsm* -y         —-安装
Installed: 
  python-rhsm.x86_64 0:1.19.10-1.el7_4                                       python-rhsm-certificates.x86_64 0:1.19.10-1.el7_4                                     
Dependency Installed: 
  python-dateutil.noarch 0:1.5-7.el7                                                                                                                                
Complete! 
[root@master ~]# 
[root@master ~]# docker pull registry.access.redhat.com/rhel7/pod-infrastructure:latest 
Trying to pull repository registry.access.redhat.com/rhel7/pod-infrastructure … 
latest: Pulling from registry.access.redhat.com/rhel7/pod-infrastructure
26e5ed6899db: Pulling fs layer 
66dbe984a319: Pulling fs layer 
^C38e7863e08: Pulling fs layer
等10个小时就好了

安装完成后，执行一下docker pull registry.access.redhat.com/rhel7/pod-infrastructure:latest
如果依然报错，可参考下面的方案：

yum install -y wget

wget http://mirror.centos.org/centos/7/os/x86_64/Packages/python-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm

rpm2cpio python-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm | cpio -iv --to-stdout ./etc/rhsm/ca/redhat-uep.pem | tee /etc/rhsm/ca/redhat-uep.pem
 
这两个命令会生成/etc/rhsm/ca/redhat-uep.pem文件.
顺得的话会得到下面的结果。
 
[root@localhost]# docker pull registry.access.redhat.com/rhel7/pod-infrastructure:latest
Trying to pull repository registry.access.redhat.com/rhel7/pod-infrastructure ...
latest: Pulling from registry.access.redhat.com/rhel7/pod-infrastructure
26e5ed6899db: Pull complete
66dbe984a319: Pull complete
9138e7863e08: Pull complete
Digest: sha256:92d43c37297da3ab187fc2b9e9ebfb243c1110d446c783ae1b989088495db931
Status: Downloaded newer image for registry.access.redhat.com/rhel7/pod-infrastructure:latest