Deploy the StatefulSet

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: tkb-sts
spec:
  replicas: 3 
  selector:
    matchLabels:
      app: web
  serviceName: "dullahan"
  template:
    metadata:
      labels:
        app: web
    spec:
      terminationGracePeriodSeconds: 10
      containers:
      - name: ctr-web
        image: nginx:latest
        ports:
        - containerPort: 80
          name: web
        volumeMounts:
        - name: webroot
          mountPath: /usr/share/nginx/html
  volumeClaimTemplates:
  - metadata:
      name: webroot
    spec:
      accessModes: [ "ReadWriteOnce" ]
      storageClassName: "flash"
      resources:
        requests:
          storage: 10Gi