NFS storage class
Contents
In this section we show how you can setup a storage class that supports ReadWriteMany using NFS. NOTE: Running an NFS server on GKE k8s cluster with autopilot mode is not possible due to security restrictions. The NFS server provisioner requires two capabilities 'DAC_READ_SEARCH' and 'SYS_RESOURCE', which are disabled by Autopilot.
Using an existing NFS server
If you have a NFS server, we will just create a client that uses that. Read more about this provisioner on github.
Add helm repository
$ helm repo add nfs https://kubernetes-sigs.github.io/nfs-subdir-external-provisioner/
"nfs" has been added to your repositories$ helm repo update
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "nfs" chart repository
Update Complete. ⎈Happy Helming!⎈Install client provisioner
Change nfs.server and nfs.path to reflect your setup. |
$ helm upgrade --install \
--namespace kube-system \
--set nfs.server=?.?.?.? \
--set nfs.path=/some/exported/path \
--set storageClass.name=nfs \
--set storageClass.archiveOnDelete=false \
--set storageClass.allowVolumeExpansion=true \
--version 3.0.0 \
nfs-client \
nfs/nfs-subdir-external-provisioner
Release "nfs-client" does not exist. Installing it now.
NAME: nfs-client
LAST DEPLOYED: Thu Feb 18 16:37:40 2021
NAMESPACE: kube-system
STATUS: deployed
REVISION: 1
TEST SUITE: NoneCreate NFS server in K8s cluster
Add helm repository
| As of this writing, the helm community is slowly phasing out the stable channel. The new version of this provisioner does not have its own helm repo yet. |
$ helm repo add stable https://charts.helm.sh/stable
"stable" has been added to your repositories$ helm repo update
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "stable" chart repository
Update Complete. ⎈Happy Helming!⎈Install server provisioner
You might want to update persistence.size for more capacity. |
$ helm upgrade --install \
--namespace kube-system \
--set persistence.enabled=true \
--set persistence.size=1Gi \
--set storageClass.name=nfs \
--set storageClass.allowVolumeExpansion=true \
--version 1.1.3 \
nfs-server \
stable/nfs-server-provisioner
Release "nfs-server" does not exist. Installing it now.
WARNING: This chart is deprecated
NAME: nfs-server
LAST DEPLOYED: Thu Feb 18 16:41:20 2021
NAMESPACE: kube-system
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
The NFS Provisioner service has now been installed.