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wiki/concepts/Node-Pools.md
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title: "Node Pools"
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type: concept
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tags: [Kubernetes, Karpenter, Compute-Management]
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sources: []
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last_updated: 2026-04-19
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---
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## Definition
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Node Pools 是 Karpenter 的核心组件,定义 Kubernetes 集群中节点的调度约束和容量限制。
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## Key Attributes
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- **调度约束**:定义哪些 Pod 可以调度到该节点池
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- **容量限制**:定义节点池的最大/最小节点数
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- **实例类型**:指定可使用的 EC2 实例类型
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- **可用区**:定义节点部署的可用区
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## Use Cases
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- 单节点池:统一的工作负载
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- 混合节点池:计算+加速节点
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- 隔离节点池:基于成本、安全或多租户的隔离
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## Related Concepts
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- [[Node-Classes]]:定义实例配置细节
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- [[Karpenter]]:使用 Node Pools 的 compute management tool
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- [[Consolidation-Policies]]:节点整合策略
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## Aliases
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- Node Pools
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- Karpenter Node Pools
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