红帽全球峰会7.6. 使用 RHCOS 自定义分层镜像进行更新
当您配置 Red Hat Enterprise Linux CoreOS (RHCOS) 镜像分层时，OpenShift Container Platform 不再自动更新使用自定义分层镜像的节点池。您负责根据需要手动更新节点。
要更新使用自定义分层镜像的节点，请按照以下步骤操作：
- 集群会自动升级到 x.y.z+1 版本，但使用自定义分层镜像的节点除外。
- 然后，您可以创建一个引用更新的 OpenShift Container Platform 镜像和之前应用的 RPM 的新 Containerfile。
- 创建指向更新的自定义分层镜像的新机器配置。
不需要使用自定义分层镜像更新节点。但是，如果该节点早于当前的 OpenShift Container Platform 版本太多，您可能会遇到意外的结果。
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