My app dir is missing

Hi.
I am using KIND.
what I did:

kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
  kubeadmConfigPatches:
  - |
    kind: InitConfiguration
    nodeRegistration:
      kubeletExtraArgs:
        node-labels: "ingress-ready=true"
  extraPortMappings:
  - containerPort: 30950
    hostPort: 80
    protocol: TCP
  extraMounts:
    - hostPath: /usr/local/docker_panel/app/
      containerPath: /app

and

kind: Pod
apiVersion: v1
metadata:
  name: app1
  labels:
    app: app1
spec:
  containers:
  - name: app
    image: docker.io/atemiz/panel1:latest
    imagePullPolicy: IfNotPresent
    ports:
    - containerPort: 5006
      hostPort: 80

kubectl logs app1 says
ERROR: No ‘main.py’ or ‘main.ipynb’ in /app
But :
when I did:
docker exec -it kind-control-plane /bin/bash

I see app and main.py inside

What might I miss?
regards