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vpa's Introduction

vpa

想法

最近面试k8, 聊到调度器和vpa的问题.
由于在一些场景下不适合使用hpa, 例如游戏, 因为游戏实现的原因, 使用hpa再新的节点上创建pod(游戏实例基础运行环境会有较高的资源占用), 收益不高. 如果能够直接扩容pod的资源是最好的方式.
实现的思路也比较简单.

  1. 调度器上如何处理. 因为调度使用的是request
  2. kubelet如何处理.
  3. 实现(触发)扩容. 也就是controller.

同时, 最近也感觉到在实时场景下, scheduler调度也有欠缺的地方. 考虑简单实现相关插件, 加强下调度器.

准备工作

目前有一段时间的openkruise, 最近腾讯又在搞crane开源.
云计算是啥, 云计算就是资源管理和降低成本的东西, 这才是云计算一直蓬勃发展的动力, 都是小钱钱. 调度又是重中之重.
有时间慢慢搞.....

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