---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-pdb
spec:
  replicas: 3
  selector:
    matchLabels:
      run: nginx-pdb
  template:
    metadata:
      labels:
        run: nginx-pdb
    spec:
      containers:
        - name: nginx
          image: nginx
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 1
              podAffinityTerm:
                labelSelector:
                  matchExpressions:
                    - key: run
                      operator: In
                      values:
                        - nginx-pdb
                topologyKey: kubernetes.io/hostname
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: nginx-pdb
spec:
  minAvailable: 2
  selector:
    matchLabels:
      run: nginx-pdb