쿠버네티스 Node Affinity

1 개요

쿠버네티스 Node Affinity Rules

쿠버네티스 Node 어피니티 규칙

• 연산자 In, NotIn, Exists, DoesNotExist 사용

requiredDuringSchedulingIgnoredDuringExecution	hard → 강한 규칙(강제사항)
preferredDuringSchedulingIgnoredDuringExecution	soft → 약한 규칙(권장사항)
requiredDuringSchedulingRequiredDuringExecution

2 예시

pod-with-node-affinity.yaml

apiVersion: v1
kind: Pod
metadata:
  name: with-node-affinity
spec:
  affinity:
    nodeAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
        nodeSelectorTerms:
        - matchExpressions:
          - key: kubernetes.io/e2e-az-name
            operator: In
            values:
            - e2e-az1
            - e2e-az2
      preferredDuringSchedulingIgnoredDuringExecution:
      - weight: 1
        preference:
          matchExpressions:
          - key: another-node-label-key
            operator: In
            values:
            - another-node-label-value
  containers:
  - name: with-node-affinity
    image: k8s.gcr.io/pause:2.0

3 같이 보기

• k8s Pod
• k8s Affinity
• k8s 스케줄링
• k8s PodSpec
• k8s Pod Affinity
• k8s nodeSelector
• 쿠버네티스 용어

4 참고

• https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#node-affinity-beta-feature