StatefulSet

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mystatefulset
spec:
  selector:
    matchLabels:
      app: myapp
  serviceName: myheadlessservice
  replicas: 2
  template:
    metadata:
      labels:
        app: myapp
    spec:
      containers:
      - name: nginx
        image: nginx:latest
        ports:
        - containerPort: 80
          name: web