红帽全球峰会2.3. 远程访问 kubeconfig 文件
当 MicroShift 集群从外部源连接到 API 服务器时，会使用 SAN 字段中所有替代名称的证书进行验证。MicroShift 使用 hostname 值为外部访问生成默认 kubeconfig。默认值在默认 kubeconfig 文件的 < node.hostnameOverride>、<node.nodeIP > 和 api.<dns.baseDomain > 参数值中设置。
/var/lib/microshift/resources/kubeadmin/<hostname>/kubeconfig 文件使用机器的 hostname 或 node.hostnameOverride（如果设置了这个选项）来访问 API 服务器。kubeconfig 文件的 CA 可以在外部访问时验证证书。
用于远程访问的默认 kubeconfig 文件的内容示例
clusters:
- cluster:
certificate-authority-data: <base64 CA>
server: https://microshift-rhel9:6443
clusters:
- cluster:
certificate-authority-data: <base64 CA>
server: https://microshift-rhel9:64432.3.1. 远程访问自定义
复制链接链接已复制到粘贴板!
可以生成多个远程访问 kubeconfig 文件值来访问使用不同 IP 地址或主机名的集群。额外的 kubeconfig 文件会为 apiServer.subjectAltNames 参数中的每个条目生成。您可以在 IP 连接时从主机复制远程访问 kubeconfig 文件，然后使用它们从其他工作站访问 API 服务器。
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