I am testing a connection between a persistent volume and a kubernetes pod by running busybox, but am getting "can't open" "no such file or directory. In order to do further testing, I tried running

echo ls /mntpoint/filename

This is obviously not the correct command. I have tried a few other iterations - too many to list here.

I want to run ls of the mountpoint and print to the console. How do I do this?

EDIT

My code was closest to Rohit's suggestion (below), so I made the following edits, but the code still does not work. Please help.

Persistent Volume

apiVersion: v1
kind: PersistentVolume
metadata:
  name: data
  labels:
    type: local
spec:
  accessModes:
    - ReadWriteOnce
  capacity:
    storage: 1Gi
  hostPath:
    path: "/mnt/data"
  storageClassName: test

Persistent Volume Claim

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: data
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi
  storageClassName: test

Pod

apiVersion: v1
kind: Pod
metadata:
  name: persistent-volume
spec:
  containers:
    - name: busybox
      command: ['tail', '-f', '/dev/null']
      image: busybox
      volumeMounts:
        - name: data
          mountPath: "/data"
  volumes:
    - name: data
      persistentVolumeClaim:
        claimName: data

EDIT 2

So, after taking a day off, I came back to my (still running) pod and the command (ls) worked. It works as expected on any directory (e.g. "ls /" or "ls /data").

My current interpretation is that I did not wait long enough before running the command - although that does not seem to explain it since I had been monitoring with "kubectl describe pod <pod>." Also I have run the same test several times with short latency between the "apply" and "exec" commands and the behavior has been consistent today.

I am going to continue to keep playing with this, but I think the current problem has been solved. Than you!