apiVersion: apps/v1
kind: StatefulSets
metadata:
  name: example-nginx-slim
  namespace: demo
  labels: 
    name: nginx
    app: nginx
    type: statefulsets
spec:
  serviceName: example-nginx-slim
  replicas: 3
  updateStrategy: 
    type: RollingUpdate
  minReadySeconds: 0
  selector:
    matchLabels:
      name: nginx
      app: nginx
      type: pod
  template:
    metadata:
      labels:
        name: nginx
        app: nginx
        type: pod
    spec:
      terminationGracePeriodSeconds: 10
      containers:
        - name: nginx
          image: nginx:1.23.3-alpine-slim
          ports:
            - name: http
              containerPort: 80
            - name: https
              containerPort: 443
          volumeMounts:
            - name: html
              mountPath: /usr/share/nginx/html
  volumeClaimTemplates:
    - metadata:
        name: html
      spec:
        accessModes:
          - ReadWriteOnce
        storageClassName: example-storage-class-nginx-html
        resources:
          requests:
            storage: 1Gi