apiVersion: v1
kind: Pod
metadata:
  name: go-http-nodeAffinity
  labels:
    app: go
    version: v1
spec:
  containers:
    - name: go-http
      image: leigg/hellok8s:v1

#  nodeSelector: 如果和亲和性同时配置，则必须都满足

  affinity:
    nodeAffinity: # 不会绕过污点机制
      # 下面两项可以二选一，也可以同时存在
      # - requiredDuringSchedulingIgnoredDuringExecution
      # - preferredDuringSchedulingIgnoredDuringExecution
      requiredDuringSchedulingIgnoredDuringExecution: # 硬性调度
        nodeSelectorTerms: # 多个 matchExpressions 之间的关系是【或】关系
          - matchExpressions: # 单个 matchExpressions 中的多个表达式是【且】关系
              # operator 支持 In、NotIn、Exists、DoesNotExist、Gt 和 Lt，其中NotIn和DoesNotExist可用于实现节点反亲和性
              - {key: disktype, operator: In, values: ["ssd"]}

#      preferredDuringSchedulingIgnoredDuringExecution: # 软性调度

#        - weight: 1 # 相比其他 软性调度 策略的权重，范围是1-100

#          preference:

#            - matchExpressions:

#                - { key: disktype, operator: In, values: [ "ssd" ] }

#        - weight: 5

#          preference:

#            - matchExpressions:

#                - { key: cpu, operator: In, values: [ "4core" ] }