红帽全球峰会4.5. 下载 RHCOS 集群镜像
Prism Central 需要访问 Red Hat Enterprise Linux CoreOS (RHCOS) 镜像来安装集群。您可以使用安装程序查找并下载 RHCOS 镜像，并通过内部 HTTP 服务器或 Nutanix 对象提供它。
先决条件
- 获取 OpenShift Container Platform 安装程序和集群的 pull secret。对于受限网络安装，这些文件位于您的镜像主机上。
流程
进入包含安装程序的目录并运行以下命令：
./openshift-install coreos print-stream-json
$ ./openshift-install coreos print-stream-jsonCopy to Clipboard Copied! Toggle word wrap Toggle overflow 使用命令的输出来查找 Nutanix 镜像的位置，然后点链接下载它。
输出示例
Copy to Clipboard Copied! Toggle word wrap Toggle overflow - 通过内部 HTTP 服务器或 Nutanix 对象提供镜像。
-
记录下载镜像的位置。在部署集群前，您可以使用镜像的位置更新安装配置文件中的
platform部分 (install-config.yaml)。
指定 RHCOS 镜像的 install-config.yaml 文件的片段
platform:
nutanix:
clusterOSImage: http://example.com/images/rhcos-411.86.202210041459-0-nutanix.x86_64.qcow2
platform:
nutanix:
clusterOSImage: http://example.com/images/rhcos-411.86.202210041459-0-nutanix.x86_64.qcow2
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