操作系统：CentOS7.9

第一、安装依赖文件

1、安装rhsm组件

 yum install *rhsm*

2、安装完成后，执行一下

docker pull registry.access.redhat.com/rhel7/pod-infrastructure:latest

二、如果依然报错，可参考下面的方案

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.

顺利的话会执行成功