쿠버네티스 Pod Affinity

1 개요

쿠버네티스 Pod Affinity Rules

쿠버네티스 Pod 어피니티 규칙

• 연산자 In, NotIn, Exists, DoesNotExist 사용

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

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

2 같이 보기

• 쿠버네티스 Pod
• 쿠버네티스 PodSpec
• 쿠버네티스 Affinity Rules
• 쿠버네티스 nodeSelector
• 쿠버네티스 스케줄링

3 참고

• https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.14/#pod-v1-core
• https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity