Rocketmq broker fails

Question

I'm deploying rocketmq on a managed GKE Kubernetes cluster. The name server starts correctly, but the broker runs in error and I cannot recognize which kind of problem occurs. It follows the yaml configuration:

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: rocketmq-broker-log-storage
provisioner: kubernetes.io/gce-pd
parameters:
  type: pd-standard
  fstype: ext4
  replication-type: none

---

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: rocketmq-broker-store-storage
provisioner: kubernetes.io/gce-pd
parameters:
  type: pd-standard
  fstype: ext4
  replication-type: none

---

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: rocketmq-namesrv-storage
provisioner: kubernetes.io/gce-pd
parameters:
  type: pd-standard
  fstype: ext4
  replication-type: none

---

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: rocketmq-broker-log-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 200Mi
  storageClassName: rocketmq-broker-log-storage

---

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: rocketmq-broker-store-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 200Mi
  storageClassName: rocketmq-broker-store-storage

---

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: rocketmq-namesrv-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 200Mi
  storageClassName: rocketmq-namesrv-storage

---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: rocketmq-namesrv
spec:
  replicas: 1
  selector:
    matchLabels:
      app: rocketmq-namesrv
  template:
    metadata:
      labels:
        app: rocketmq-namesrv
    spec:
      containers:
      - name: namesrv
        image: myrepo/rocketmq:4.9.3-alpine
        command: ["sh", "mqnamesrv"]
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9876
        volumeMounts:
        - name: namesrv-log
          mountPath: /var/log
      volumes:
      - name: namesrv-log
        persistentVolumeClaim:
          claimName: rocketmq-namesrv-pvc

---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: rocketmq-broker
spec:
  replicas: 1
  selector:
    matchLabels:
      app: rocketmq-broker
  template:
    metadata:
      labels:
        app: rocketmq-broker
    spec:
      containers:
      - name: broker
        image: myrepo/rocketmq:4.9.3-alpine
        command: ["sh", "mqbroker", "-n", "rocketmq-namesrv:9876"]
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 10909
        - containerPort: 10911
        volumeMounts:
        - name: broker-log
          mountPath: /home/rocketmq/logs
        - name: broker-store
          mountPath: /home/rocketmq/store
      volumes:
      - name: broker-log
        persistentVolumeClaim:
          claimName: rocketmq-broker-log-pvc
      - name: broker-store
        persistentVolumeClaim:
          claimName: rocketmq-broker-store-pvc

---

apiVersion: v1
kind: Service
metadata:
  name: rocketmq-namesrv
spec:
  type: NodePort
  selector:
    app: rocketmq-namesrv
  ports:
  - name: namesrv
    port: 9876

---

apiVersion: v1
kind: Service
metadata:
  name: rocketmq-broker
spec:
  type: NodePort
  selector:
    app: rocketmq-broker
  ports:
  - name: broker1
    port: 10909
  - name: broker2
    port: 10911

The image rocketmq:4.9.3-alpine was created following the procedure on the apache/rocketmq-docker repo.

I tried kubectl logs and kubectl describe, but I cannot figure out what could be the problem because they give me no information.

What could be the problem?