控制器Deployment资源清单

官网

https://kubernetes.io/zh-cn/docs/concepts/workloads/controllers/deployment/

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-deployment
  namespace: test
spec:
  replicas: 1
  selector:
    matchLabels:
      environment: stg
  template:
    metadata:
      labels:
        environment: stg
    spec:
      containers:
      - name: nginx-container
        image: nginx:latest
        imagePullPolicy: IfNotPresent
        ports:
        - name: nginx-port
          containerPort: 80
          protocol: TCP
        lifecycle:
          postStart:
            exec:
              command: ["/bin/sh","-c","echo jiayouba!!!!!>/usr/share/nginx/html/index.html"]
      affinity:  #亲和性设置
        nodeAffinity: #设置node亲和性
          requiredDuringSchedulingIgnoredDuringExecution: # 硬限制
            nodeSelectorTerms:
            - matchExpressions: # 匹配env的值在["xxx","yyy"]中的标签
              - key: env
                operator: In
                values: ["test1","stg"]

亲和性

node亲和性，软限制:优先选择满足条件的Node进行调度，如果没有，也可以调度到不满足条件的节点上

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-deployment
  namespace: test
spec:
  replicas: 1
  selector:
    matchLabels:
      environment: stg
  template:
    metadata:
      labels:
        environment: stg
    spec:
      containers:
      - name: nginx-container
        image: nginx:latest
        imagePullPolicy: IfNotPresent
        ports:
        - name: nginx-port
          containerPort: 80
          protocol: TCP
        lifecycle:
          postStart:
            exec:
              command: ["/bin/sh","-c","echo jiayouba!!!!!>/usr/share/nginx/html/index.html"]
      affinity:  #亲和性设置
        nodeAffinity: #设置node亲和性
          preferredDuringSchedulingIgnoredDuringExecution: #软限制
          - weight: 1 
            preference: 
              matchExpressions: 
              - key: env
                operator: In
                values: ["aaaa","bbbb"]