When trying to bind a pod to a NFS persistentVolume hosted on another pod, it fails to mount when using docker-desktop. It works perfectly fine elsewhere even with the exact same YAML.
The error:
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 4m59s default-scheduler Successfully assigned test-project/test-digit-5576c79688-zfg8z to docker-desktop
Warning FailedMount 2m56s kubelet Unable to attach or mount volumes: unmounted volumes=[lagg-connection], unattached volumes=[lagg-connection kube-api-access-h68w7]: timed out waiting for the condition
Warning FailedMount 37s kubelet Unable to attach or mount volumes: unmounted volumes=[lagg-connection], unattached volumes=[kube-api-access-h68w7 lagg-connection]: timed out waiting for the condition
The minified project which you can apply to test yourself:
apiVersion: v1
kind: Namespace
metadata:
name: test-project
labels:
name: test-project
---
apiVersion: v1
kind: Service
metadata:
labels:
environment: test
name: test-lagg
namespace: test-project
spec:
clusterIP: 10.96.13.37
ports:
- name: nfs
port: 2049
- name: mountd
port: 20048
- name: rpcbind
port: 111
selector:
app: nfs-server
environment: test
scope: backend
---
apiVersion: v1
kind: PersistentVolume
metadata:
labels:
environment: test
name: test-lagg-volume
spec:
accessModes:
- ReadWriteMany
capacity:
storage: 2Gi
nfs:
path: /
server: 10.96.13.37
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
labels:
environment: test
name: test-lagg-claim
namespace: test-project
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 2Gi
storageClassName: ""
---
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: static
environment: test
scope: backend
name: test-digit
namespace: test-project
spec:
selector:
matchLabels:
app: static
environment: test
scope: backend
template:
metadata:
labels:
app: static
environment: test
scope: backend
spec:
containers:
- image: busybox
name: digit
imagePullPolicy: IfNotPresent
command: ['sh', '-c', 'echo Container 1 is Running ; sleep 3600']
volumeMounts:
- mountPath: /cache
name: lagg-connection
volumes:
- name: lagg-connection
persistentVolumeClaim:
claimName: test-lagg-claim
---
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
environment: test
name: test-lagg
namespace: test-project
spec:
selector:
matchLabels:
app: nfs-server
environment: test
scope: backend
template:
metadata:
labels:
app: nfs-server
environment: test
scope: backend
spec:
containers:
- image: gcr.io/google_containers/volume-nfs:0.8
name: lagg
ports:
- containerPort: 2049
name: lagg
- containerPort: 20048
name: mountd
- containerPort: 111
name: rpcbind
securityContext:
privileged: true
volumeMounts:
- mountPath: /exports
name: lagg-claim
volumes:
- emptyDir: {}
name: lagg-claim
As well as emptyDir
I have also tried hostPath
. This setup has worked before, and I'm not sure what I've changed if anything since it has stopped.
Updating my Docker for Windows installation from 4.0.1 to 4.1.1 has fixed this problem.