用k8s創建完pod後，查了一下pods狀態，發現都在containercreationg狀態中
==> kubectl get pods
用kubectl describe查看 pods的詳情,發現 registry.access.redhat.com/rhel7/pod-infrastructure:latest 鏡像報錯
==> kubectl describe pod mysql
使用docker pull 拉取鏡像，缺失rhsm 文件
==> docker pull registry.access.redhat.com/rhel7/pod-infrastructure:latest
yum 安裝 rhsm，發現 python-rhsm-certificates 已被 subscription-manager-rhsm-certificates 替換，無法yum 成功
==> yum install *rhsm*
使用 wget 獲取python-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm rpm包並安裝 python-rhsm-certificates
==>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
再次使用使用docker pull 拉取鏡像
==> docker pull registry.access.redhat.com/rhel7/pod-infrastructure:latest
pods 已成功 在Running 狀態中
==> kubectl get pods
