kubernetes-csi/csi-driver-nfs with subDir

By default nfs-csi store file in format nfs://nfs-server:/export-path/$pvname. With subDir will make it better.

nfs-csi StorageClass with SubDir: instance1/${pvc.metadata.namespace}/${pvc.metadata.name}/${pv.metadata.name}

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: nfs-csi
mountOptions:
- nfsvers=4.2
- rsize=65536
- wsize=65536
- async
- noatime
- tcp
parameters:
  server: nas01
  share: /nfs-server
  subDir: instance1/${pvc.metadata.namespace}/${pvc.metadata.name}/${pv.metadata.name}
provisioner: nfs.csi.k8s.io
reclaimPolicy: Delete
volumeBindingMode: Immediate

PV:

nick@nick-iot:~$ k get pvc  -A
NAMESPACE    NAME                                 STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS   AGE
default      nginx-pv-rwo                         Bound    pvc-4451dbbc-7ea5-4f8a-acbc-9a855cdf6e98   1Gi        RWO            nfs-csi        16h
monitoring   prometheus-k8s-db-prometheus-k8s-0   Bound    pvc-33091c77-d4bc-4feb-8439-63999dc5df3c   5Gi        RWO            nfs-csi        29m
nginx        nginx-pv-rwo                         Bound    pvc-871f367f-5b4a-4de3-a16e-31f27d3cd322   1Gi        RWO            nfs-csi        41m
wordpress    mysql-pv-claim                       Bound    pvc-01b6e5ab-e507-43da-8b1b-9854e9a6b3ad   4Gi        RWO            nfs-csi        41m

Result:

$ k exec -it -n wordpress deployments/wordpress-mysql -- df -h
Filesystem                                                                                            Size  Used Avail Use% Mounted on
overlay                                                                                                20G   13G  6.3G  67% /
tmpfs                                                                                                  64M     0   64M   0% /dev
/dev/sda2                                                                                              20G   13G  6.3G  67% /etc/hosts
shm                                                                                                    64M     0   64M   0% /dev/shm
nas01:/nfs-server/instance1/wordpress/mysql-pv-claim/pvc-01b6e5ab-e507-43da-8b1b-9854e9a6b3ad  293G   23G  255G   9% /var/lib/mysql
tmpfs                                                                                                 6.1G   12K  6.1G   1% /run/secrets/kubernetes.io/serviceaccount
udev                                                                                                  3.9G  8.0K  3.9G   1% /proc/keys

adm@nas01:~$ sudo find /nfs-server/instance1/ -type d
/nfs-server/instance1/
/nfs-server/instance1/monitoring
/nfs-server/instance1/monitoring/prometheus-k8s-db-prometheus-k8s-0
/nfs-server/instance1/monitoring/prometheus-k8s-db-prometheus-k8s-0/pvc-33091c77-d4bc-4feb-8439-63999dc5df3c
/nfs-server/instance1/monitoring/prometheus-k8s-db-prometheus-k8s-0/pvc-33091c77-d4bc-4feb-8439-63999dc5df3c/prometheus-db
/nfs-server/instance1/monitoring/prometheus-k8s-db-prometheus-k8s-0/pvc-33091c77-d4bc-4feb-8439-63999dc5df3c/prometheus-db/wal
/nfs-server/instance1/monitoring/prometheus-k8s-db-prometheus-k8s-0/pvc-33091c77-d4bc-4feb-8439-63999dc5df3c/prometheus-db/chunks_head
/nfs-server/instance1/nginx
/nfs-server/instance1/nginx/nginx-pv-rwo
/nfs-server/instance1/nginx/nginx-pv-rwo/pvc-871f367f-5b4a-4de3-a16e-31f27d3cd322
/nfs-server/instance1/wordpress
/nfs-server/instance1/wordpress/mysql-pv-claim
/nfs-server/instance1/wordpress/mysql-pv-claim/pvc-01b6e5ab-e507-43da-8b1b-9854e9a6b3ad
/nfs-server/instance1/wordpress/mysql-pv-claim/pvc-01b6e5ab-e507-43da-8b1b-9854e9a6b3ad/mysql
/nfs-server/instance1/wordpress/mysql-pv-claim/pvc-01b6e5ab-e507-43da-8b1b-9854e9a6b3ad/performance_schema

Thai is all.