k8s 集群如何针对 pod 限制节点进行部署
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最佳答案
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Affinity and anti-affinity
kubectl lable nodes k8s-node10 webtype=i-web
kubectl lable nodes k8s-node11 webtype=i-web
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: webtype
operator: In
values:
- i-web
operator:[In | NotIn | Exists | DoesNotExist | Gt | Lt]
收获园豆：90
通过 node affinity 与 node anti-affinity 实现了。
- 给 node 打标签
kubectl label nodes k8s-n10 i-web=true
kubectl label nodes k8s-n11 i-web=true
- i-web deployment 中添加 node affinity 配置
affinity:
nodeAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
preference:
matchExpressions:
- key: i-web
operator: In
values: ["true", "yes", "1"]
- blog-web deployment 中添加 node anti-affinity 配置
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: i-web
operator: DoesNotExist
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