红帽全球峰会11.4. 具有用户置备基础架构的集群的要求
对于包含用户置备的基础架构的集群，您必须部署所有所需的机器。
本节论述了在用户置备的基础架构上部署 OpenShift Container Platform 的要求。
11.4.1. 集群安装所需的机器
最小的 OpenShift Container Platform 集群需要以下主机：
| 主机 | 描述 |
|---|---|
| 一个临时 bootstrap 机器 | 集群需要 bootstrap 机器在三台 control plane 机器上部署 OpenShift Container Platform 集群。您可在安装集群后删除 bootstrap 机器。 |
| 三台 control plane 机器 | control plane 机器运行组成 control plane 的 Kubernetes 和 OpenShift Container Platform 服务。 |
| 至少两台计算机器，也称为 worker 机器。 | OpenShift Container Platform 用户请求的工作负载在计算机器上运行。 |
要保持集群的高可用性，请将独立的物理主机用于这些集群机器。
bootstrap 和 control plane 机器必须使用 Red Hat Enterprise Linux CoreOS(RHCOS)作为操作系统。但是，计算机器可以在 Red Hat Enterprise Linux CoreOS(RHCOS)、Red Hat Enterprise Linux(RHEL) 8.6 和更高的版本。
请注意，RHCOS 基于 Red Hat Enterprise Linux(RHEL)8，并继承其所有硬件认证和要求。查看 红帽企业 Linux 技术功能和限制。
11.4.2. 集群安装的最低资源要求
每台集群机器都必须满足以下最低要求：
| 机器 | 操作系统 | vCPU [1] | 虚拟内存 | Storage | 每秒输入/输出 (IOPS) [2] |
|---|---|---|---|---|---|
| bootstrap | RHCOS | 4 | 16 GB | 100 GB | 300 |
| Control plane（控制平面） | RHCOS | 4 | 16 GB | 100 GB | 300 |
| Compute | RHCOS、RHEL 8.6 及更新版本 [3] | 2 | 8 GB | 100 GB | 300 |
- 当未启用并发多线程(SMT)或超线程时，一个 vCPU 相当于一个物理内核。启用后，使用以下公式来计算对应的比例：（每个内核数的线程）× sockets = vCPU。
- OpenShift Container Platform 和 Kubernetes 对磁盘性能非常敏感，建议使用更快的存储速度，特别是 control plane 节点上需要 10 ms p99 fsync 持续时间的 etcd。请注意，在许多云平台上，存储大小和 IOPS 可一起扩展，因此您可能需要过度分配存储卷来获取足够的性能。
- 与所有用户置备的安装一样，如果您选择在集群中使用 RHEL 计算机器，则负责所有操作系统生命周期管理和维护，包括执行系统更新、应用补丁和完成所有其他必要的任务。RHEL 7 计算机器的使用已弃用，并已在 OpenShift Container Platform 4.10 及更新的版本中删除。
您需要使用将 PremiumIO 参数设置为 true 的 Azure 虚拟机。
如果平台的实例类型满足集群机器的最低要求，则 OpenShift Container Platform 支持使用它。
11.4.3. 为 Azure 测试的实例类型
以下 Microsoft Azure 实例类型已经 OpenShift Container Platform 测试。
例 11.20. 基于 64 位 x86 架构的机器类型
-
standardBasv2Family -
standardBSFamily -
standardBsv2Family -
standardDADSv5Family -
standardDASv4Family -
standardDASv5Family -
standardDCACCV5Family -
standardDCADCCV5Family -
standardDCADSv5Family -
standardDCASv5Family -
standardDCSv3Family -
standardDCSv2Family -
standardDDCSv3Family -
standardDDSv4Family -
standardDDSv5Family -
StandardDdsv6Family -
standardDLDSv5Family -
StandardDldsv6Family -
standardDLSv5Family -
StandardDlsv6Family -
standardDSFamily -
standardDSv2Family -
standardDSv2PromoFamily -
standardDSv3Family -
standardDSv4Family -
standardDSv5Family -
StandardDsv6Family -
standardEADSv5Family -
standardEASv4Family -
standardEASv5Family -
standardEBDSv5Family -
standardEBSv5Family -
standardECACCV5Family -
standardECADCCV5Family -
standardECADSv5Family -
standardECASv5Family -
standardEDSv4Family -
standardEDSv5Family -
standardEIADSv5Family -
standardEIASv4Family -
standardEIASv5Family -
standardEIBDSv5Family -
standardEIBSv5Family -
standardEIDSv5Family -
standardEISv3Family -
standardEISv5Family -
standardESv3Family -
standardESv4Family -
standardESv5Family -
StandardFXmdsv2Family -
standardFXMDVSFamily -
standardFSFamily -
standardFSv2Family -
standardGSFamily -
standardHBrsv2Family -
standardHBSFamily -
standardHBv4Family -
standardHCSFamily -
standardHXFamily -
standardLASv3Family -
standardLasv4Family -
standardLSFamily -
standardLSv2Family -
standardLSv3Family -
standardLsv4Family -
standardMDSHighMemoryv3Family -
standardMDSMediumMemoryv2Family -
standardMDSMediumMemoryv3Family -
standardMIDSHighMemoryv3Family -
standardMIDSMediumMemoryv2Family -
standardMISHighMemoryv3Family -
standardMISMediumMemoryv2Family -
standardMSFamily -
standardMSHighMemoryv3Family -
standardMSMediumMemoryv2Family -
standardMSMediumMemoryv3Family -
StandardNCADSA100v4Family -
Standard NCASv3_T4 Family -
standardNCSv3Family -
standardNDSv2Family -
StandardNGADSV620v1Family -
standardNPSFamily -
StandardNVADSA10v5Family -
StandardNVadsV710v5Family -
标准 NDASv4_A100 Family -
standardNVSv3Family -
standardXEISv4Family
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