4.pod.yaml 文件详解

apiVersion: v1
kind: Pod
metadata:
  name: pod-3
  labels:
    app: pod-3
spec:
  containers:
  - name: pod-3
    image: wangyanglinux/myapp:v1
  affinity:
    podAffinity:                                        # 定义亲和性为：pod亲和性
      requiredDuringSchedulingIgnoredDuringExecution:       # 硬亲和
      - labelSelector:                                      # 标签选择器
          matchExpressions:                                 # 匹配运算符
          - key: app                                        # 匹配 app=pod-1
            operator: In
            values:
            - pod-1
        topologyKey: disktype                               # 拓扑域为 disktype