20、Kubernetes 节点特性选择与状态应用部署全解析

Kubernetes 节点特性选择与状态应用部署全解析

1. 节点特性选择与 Pod 调度规则

在 Kubernetes 中，我们可以通过一些配置来实现节点特性选择和 Pod 的调度规则。例如，以下是一个 Deployment 的配置示例：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: timeserver
spec:
  replicas: 3
  selector:
    matchLabels:
      pod: timeserver-pod
  template:
    metadata:
      labels:
        pod: timeserver-pod
    spec:
      containers:
      - name: timeserver-container
        image: docker.io/wdenniss/timeserver:5
      affinity:
        podAntiAffinity:            
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: pod
                operator: In
                values:
                - mariadb-pod
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