3.4.2. Deployment.yml¶

LimitRange资源限制¶

LimitRange相关

环境变量¶

apiVersion: extensions/v1beta1    # extensions是API group, v1beta1是version
kind: Deployment
metadata:
  name: oneserver-deployment
spec:
  replicas: 3   # 指定复制pod个数
  minReadySeconds: 10  # 就绪探针监测ready后要维持可运行10s,则认为此pod是可用状态
  strategy:
    rollingUpdate:
      maxSurge: 1        # 可超出期望副本数之外的pod数量(可以是整数或百分比,百分比四舍五入)
      maxUnavailable: 0  # 相对期望整本数,最多允许多少pod处于不可用状态(可以是整数或百分比)
    type: RollingUpdate
  selector:
    matchLabels:
      app: oneserver
  template:
    metadata:
      labels:
        app: oneserver
    spec:
        containers:
          - name: oneserver
            image: registry.cn-beijing.aliyuncs.com/xxxxxx/oneserver:1
            env:    # 环境变量
            - name: device_name
              value: "数据守护者"
            - name: hub_server_addr
              value: "http://172.19.56.34:9001"
            readlinessProbe:   # 就绪探针1
              exec:
                command:
                  - ls
                  - /var/ready

            readlinessProbe:   # 就绪探针2
              periodSecond: 1  # 定义就绪探针每隔1秒执行一次
              httpGet:
                path: /
                port: 8080

affinity亲和度¶

apiVersion: extensions/v1beta1    # extensions是API group, v1beta1是version
kind: Deployment
metadata:
  name: oneserver-deployment
spec:
  replicas: 3   # 指定复制pod个数
  minReadySeconds: 10  # 就绪探针监测ready后要维持可运行10s,则认为此pod是可用状态
  strategy:
    rollingUpdate:
      maxSurge: 1        # 可超出期望副本数之外的pod数量(可以是整数或百分比,百分比四舍五入)
      maxUnavailable: 0  # 相对期望整本数,最多允许多少pod处于不可用状态(可以是整数或百分比)
    type: RollingUpdate
  selector:
    matchLabels:
      app: oneserver
  template:
    metadata:
      labels:
        app: oneserver
    spec:
      containers:
        - name: oneserver
          image: registry.cn-beijing.aliyuncs.com/xxxxxx/oneserver:1
      affinity:
        podAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: security
                operator: In
                values:
                - S1
            topologyKey: failure-domain.beta.kubernetes.io/zone
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: security
                  operator: In
                  values:
                  - S2
              topologyKey: failure-domain.beta.kubernetes.io/zone