I am trying to mount a PV into a pod with the following:

    {
  "kind": "PersistentVolume",
  "apiVersion": "v1",
  "metadata": {
    "name": "pv",
    "labels": {
      "type": "ssd1-zone1"
    }
  },
  "spec": {
    "capacity": {
      "storage": "150Gi"
    },
    "hostPath": {
      "path": "/mnt/data"
    },
    "accessModes": [
      "ReadWriteOnce"
    ],
    "persistentVolumeReclaimPolicy": "Retain",
    "storageClassName": "zone1"
  }
}

{
  "kind": "PersistentVolumeClaim",
  "apiVersion": "v1",
  "metadata": {
    "name": "pvc",
    "namespace": "clever"
  },
  "spec": {
    "accessModes": [
      "ReadWriteOnce"
    ],
    "resources": {
      "requests": {
        "storage": "150Gi"
      }
    },
    "volumeName": "pv",
    "storageClassName": "zone1"
  }
}
kind: Pod
apiVersion: v1
metadata:
  name: task-pv-pod
spec:
  volumes:
    - name: pv
      persistentVolumeClaim:
       claimName: pvc
  containers:
    - name: task-pv-container
      image: nginx
      ports:
        - containerPort: 80
          name: "http-server"
      volumeMounts:
        - mountPath: "/usr/share/nginx/html"
          name: pv

The pod creates propertly and uses the PVC claim without problem. When I ssh into the pod to see the mount, however, the size is 50Gb, which is the size of the attached storage and not the volume I specified.

root@task-pv-pod:/# df -aTh | grep "/html"
/dev/vda1      xfs       50G   13G   38G  26% /usr/share/nginx/html

The PVC appears to be correct to:

root@5139993be066:/# kubectl describe pvc pvc
Name:          pvc
Namespace:     default
StorageClass:  zone1
Status:        Bound
Volume:        pv
Labels:        <none>
Annotations:   kubectl.kubernetes.io/last-applied-configuration={"apiVersion":"v1","kind":"PersistentVolumeClaim","metadata":{"annotations":{},"name":"pvc","namespace":"default"},"spec":{"accessModes":["ReadWriteO...
               pv.kubernetes.io/bind-completed=yes
Finalizers:    []
Capacity:      150Gi
Access Modes:  RWO
Events:        <none>

I have deleted and recreated the volume and the claim many times and tried to use different images for my pod. Nothing is working.