apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis-statefulset
  namespace: visitor-app
spec:
  serviceName: "redis-service"
  replicas: 1
  selector:
    matchLabels:
      app: redis-app
  template:
    metadata:
      labels:
        app: redis-app
    spec:
      containers:
      - name: redis-container
        image: redis:alpine # Redis image.
        ports:
        - containerPort: 6379 # Redis default port.
        volumeMounts:
        - name: redis-storage-volume # Mount persistent volume.
          mountPath: /data # Redis data directory.
  volumeClaimTemplates:
  - metadata:
      name: redis-storage-volume # Persistent Volume Claim.
    spec:
      accessModes: ["ReadWriteOnce"]
      resources:
        requests:
          storage: 1Gi # Persistent storage size.