I'm new with containers and kubernetes. What I'm trying to do is to create a pod with access to a local directory.

I have followed the directions from: configure persistent volume storage

Created my Persistent Volume, Persistent Volume Claim and my pod.

The problem is that the tomcat is not able to write on the shared directory

This is the Persistent Volume:

kind: PersistentVolume
apiVersion: v1
metadata:
  name: pv-webapp6
  labels:
    type: local
spec:
  storageClassName: manual
  capacity:
    storage: 3Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: "/opt/test_tomcat/app"

This is the Persistent Volume Claim:

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: pvc-webapp6
spec:
  storageClassName: manual
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi

This is the tomcat Pod I'm trying to create:

apiVersion: v1
kind: Pod
metadata:
  name: webapp6
spec:
  containers:
  - image: tomcat:8.0
    name: webapp6
    ports:
      - containerPort: 8080
        name: webapp6
    volumeMounts:
    - mountPath: /usr/local/tomcat/webapps
      name: test-volume
  volumes:
  - name: test-volume
    persistentVolumeClaim:
      claimName: pvc-webapp6

Its a bit obvious, but this the error on the pod.

[root@testserver webapp6-test]# kubectl exec -it webapp6 -- /bin/bash
root@webapp6:/usr/local/tomcat# mkdir /usr/local/tomcat/webapps/sample
mkdir: cannot create directory ‘/usr/local/tomcat/webapps/sample’: Permission denied