apiVersion: apps/v1
kind: Deployment
metadata:
  name: checkout
  namespace: checkout
spec:
  template:
    spec:
      affinity:
        podAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app.kubernetes.io/component
                operator: In
                values:
                - redis
            topologyKey: kubernetes.io/hostname
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app.kubernetes.io/component
                operator: In
                values:
                - service
              - key: app.kubernetes.io/instance
                operator: In
                values:
                - checkout
            topologyKey: kubernetes.io/hostname