Persistent volume Kubernetes on Google Cloud - kubernetes

Question

I have a Redis pod on my Kubernetes cluster on Google Cloud. I have built PV and the claim.
kind: PersistentVolume
apiVersion: v1
metadata:
name: redis-pv
labels:
type: local
spec:
storageClassName: manual
capacity:
storage: my-size
accessModes:
- ReadWriteOnce
hostPath:
path: "/data"
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
labels:
app: postgres
name: redis-pv-claim
spec:
storageClassName: manual
accessModes:
- ReadWriteOnce
resources:
requests:
storage: my size
I also mounted it in my deployment.yaml
volumeMounts:
- mountPath: /data
name: redis-pv-claim
volumes:
- name: redis-pv-claim
persistentVolumeClaim:
claimName: redis-pv-claim
I can't see any error while running describe pod
Volumes:
redis-pv-claim:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
ClaimName: redis-pv-claim
ReadOnly: false
But it just can't save any key. After every deployment, the "/data" folder is just empty.
My NFS is active now but i still cant keep data .
Describe pvc
Namespace: my namespace
StorageClass: nfs-client
Status: Bound
Volume: pvc-5d278b27-a51e-4262-8c1b-68b290b21fc3
Labels: <none>
Annotations: pv.kubernetes.io/bind-completed: yes
pv.kubernetes.io/bound-by-controller: yes
volume.beta.kubernetes.io/storage-class: nfs-client
volume.beta.kubernetes.io/storage-provisioner: cluster.local/ext1-nfs-client-provisioner
Finalizers: [kubernetes.io/pvc-protection]
Capacity: 1Gi
Access Modes: RWX
VolumeMode: Filesystem
Mounted By: my grafana pod
Events: <none>
Describe pod gives me an error though.
Warning FailedMount 18m kubelet, gke-devcluster-pool-1-36e6a393-rg7d MountVolume.SetUp failed for volume "pvc-5d278b27-a51e-4262-8c1b-68b290b21fc3" : mount failed: exit status 1
Mounting command: systemd-run
Mounting arguments: --description=Kubernetes transient mount for /var/lib/kubelet/pods/8f7b6630-ed9b-427a-9ada-b75e1805ed60/volumes/kubernetes.io~nfs/pvc-5d278b27-a51e-4262-8c1b-68b290b21fc3 --scope -- /
home/kubernetes/containerized_mounter/mounter mount -t nfs 192.168.1.21:/mnt/nfs/development-test-claim-pvc-5d278b27-a51e-4262-8c1b-68b290b21fc3 /var/lib/kubelet/pods/8f7b6630-ed9b-427a-9ada-b75e1805ed60
/volumes/kubernetes.io~nfs/pvc-5d278b27-a51e-4262-8c1b-68b290b21fc3
Output: Running scope as unit: run-ra5925a8488ef436897bd44d526c57841.scope
Mount failed: mount failed: exit status 32
Mounting command: chroot

Answer 1

Working redis with PV and PVC on GKE
apiVersion: v1
kind: Service
metadata:
name: redis
spec:
type: LoadBalancer
ports:
- port: 6379
name: redis
selector:
app: redis
---
apiVersion: apps/v1beta2
kind: StatefulSet
metadata:
name: redis
spec:
selector:
matchLabels:
app: redis
serviceName: redis
replicas: 1
template:
metadata:
labels:
app: redis
spec:
containers:
- name: redis
image: redislabs/rejson
args: ["--requirepass", "password", "--appendonly", "no", "--loadmodule", "/usr/lib/redis/modules/rejson.so"]
ports:
- containerPort: 6379
name: redis
resources:
limits:
cpu: .50
memory: 1500Mi
requests:
cpu: .25
memory: 1000Mi
volumeMounts:
- name: redis-volume
mountPath: /data
volumeClaimTemplates:
- metadata:
name: redis-volume
spec:
accessModes: [ "ReadWriteOnce" ]
resources:
requests:
storage: 5Gi
you can update image in this stateful sets as per need.