NodeAffinity

nodeAffinity 추가 

Requirements:
Use requiredDuringSchedulingIgnoredDuringExecution node affinity
Key: color
Value: blue

 

 

Operator - 키값만

Name: red
Replicas: 2
Image: nginx
NodeAffinity: requiredDuringSchedulingIgnoredDuringExecution
Key: node-role.kubernetes.io/control-plane
Use the right operator

 

 

주요 operator 종류
operator 설명
In 값이 지정한 리스트 안에 있으면 매칭
NotIn 값이 지정한 리스트에 없으면 매칭
Exists 해당 key가 노드에 존재하면 매칭
DoesNotExist 해당 key가 노드에 없으면 매칭
Gt 값이 정수형일 때 key의 값이 지정 값보다 크면 매칭
Lt 값이 정수형일 때 key의 값이 지정 값보다 작으면 매칭

 

 

k create deploy red --image=nginx --replicas=2 --dry-run=client -o yaml > red.yaml

vi red.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: red
  name: red
spec:
  replicas: 2
  selector:
    matchLabels:
      app: red
  strategy: {}
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: red
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: node-role.kubernetes.io/control-plane
                operator: Exists
      containers:
      - image: nginx
        name: nginx
        resources: {}
status: {}

spec.affinity 부분 추