apiVersion: v1
kind: PersistentVolume
metadata:
  name: mongo-pv
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: /data/mongo

---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mongo-pvc
  namespace: my-app-ns
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi

---
# 🔥 TOTO JE TEN DÔLEŽITÝ SERVICE
apiVersion: v1
kind: Service
metadata:
  name: mongo
  namespace: my-app-ns
spec:
  selector:
    app: mongo
  ports:
    - port: 27017
      targetPort: 27017

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mongo
  namespace: my-app-ns
spec:
  serviceName: "mongo"
  replicas: 1
  selector:
    matchLabels:
      app: mongo
  template:
    metadata:
      labels:
        app: mongo
    spec:
      containers:
        - name: mongo
          image: mongo
          ports:
            - containerPort: 27017
          volumeMounts:
            - name: mongo-storage
              mountPath: /data/db
  volumeClaimTemplates:
    - metadata:
        name: mongo-storage
      spec:
        accessModes: ["ReadWriteOnce"]
        resources:
          requests:
            storage: 1Gi