Read-only file system error in Kubernetes

General Discussions
1

I am getting an error while adding NFS in the Kubernetes cluster. I was able to mount the NFS but not able to add a file or directory in the mount location.

This is my yaml file

kind: Pod
apiVersion: v1
metadata:
  name: pod-using-nfs
spec:
  volumes:
    - name: nfs-volume
      nfs:
        server: 10.01.26.81
        path: /nfs_data/nfs_share_home_test/testuser
  containers:
    - name: app
      image: alpine
      volumeMounts:
        - name: nfs-volume
          mountPath: /home/kube/testuser

Then I ran the following commands for building the pod

kubectl apply -f session.yaml
kubectl exec -it pod-using-nfs sh

After I exec to the pod,

/ # cd home/kube/testuser/
/home/kube/testuser# touch hello
touch: hello: Read-only file system

Expected output is

/ # cd home/kube/testuser/
/home/kube/testuser# touch hello
/home/kube/testuser# ls
hello

Should I need to add any securityContext to the yaml for fixing this?
Any help would be appreciated!

2

May be the reason is you haven’t define rw option in your NFS configuration in exportfs file?

3

Thanks man. This issue is resolved!