咨询一下，K8S集群采用物理机部署，怎么去配置硬件参数？CPU、内存、硬盘、网络？
K8S生产集群，master节点3个，work节点5个，节点硬件怎么去配置合理？SSD、SAS硬盘怎么配置？
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Minimal required memory & CPU (cores)
- Master node’s minimal required memory is 2GB and the worker node needs minimum is 1GB
- The master node needs at least 1.5 and the worker node need at least 0.7 cores.
https://medium.com/faun/kubernetes-prerequisites-for-setup-kubenetes-cluster-part-2-699b3f93d6cc
Master node 最少要有1.5 core 内存 2G ,Work node 0.7 core 内存 1G
Work Node 需要評估您上面會有多少容器，總共需要多少 Core 及RAM，會配置到各台Work node上
像我的生產環境Master node使用 8 Core和32G RAM虛擬機,
Work node 使用56 Core和256G RAM 物理機.
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