---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: app-disk
  labels:
    app: app-disk
spec:
  selector:
    matchLabels:
      app: app-disk
  replicas: 1
  template:
    metadata:
      labels:
        app: app-disk
    spec:
      containers:
      - name: app-disk
        image: nginx:latest
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app
                operator: In
                values:
                - app-disk
            topologyKey: "kubernetes.io/hostname"
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: zone
                operator: In
                values:
                - us-east
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 1
            preference:
              matchExpressions:
              - key: type
                operator: In
                values:
                - ssd