when installing bitnami mongodb-sharded, i got error from PVCs: no persistent volumes available for this claim and no storage class is set

Question

I am trying to install my rancher(RKE) kubernetes cluster bitnami/mongodb-shared . But I couldn't create a valid PV for this helm chart.

The error that I am getting: no persistent volumes available for this claim and no storage class is set

This is the helm chart documentation section about PersistenceVolume: https://github.com/bitnami/charts/tree/master/bitnami/mongodb-sharded/#persistence

This is the StorageClass and PersistentVolume yamls that I created for this helm chart PVCs':

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: ssd-nfs-storage
provisioner: nope
parameters:
  archiveOnDelete: "false"
----------
apiVersion: v1
kind: PersistentVolume
metadata:
  name: nfs-pv
  labels:
    name: db-nfs
spec:
  storageClassName: ssd-nfs-storage # same storage class as pvc
  capacity:
    storage: 100Gi
  accessModes:
    - ReadWriteOnce
  nfs:
    server: 142.251.33.78 # ip addres of nfs server
    path: "/bitnami/mongodb" # path to directory

This is the PVC yaml that created by the helm chart:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  creationTimestamp: "2021-06-06T17:50:40Z"
  finalizers:
  - kubernetes.io/pvc-protection
  labels:
    app.kubernetes.io/component: shardsvr
    app.kubernetes.io/instance: sam-db
    app.kubernetes.io/name: mongodb-sharded
  managedFields:
  - apiVersion: v1
    fieldsType: FieldsV1
    fieldsV1:
      f:metadata:
        f:labels:
          .: {}
          f:app.kubernetes.io/component: {}
          f:app.kubernetes.io/instance: {}
          f:app.kubernetes.io/name: {}
      f:spec:
        f:accessModes: {}
        f:resources:
          f:requests:
            .: {}
            f:storage: {}
        f:volumeMode: {}
      f:status:
        f:phase: {}
    manager: kube-controller-manager
    operation: Update
    time: "2021-06-06T17:50:40Z"
  name: datadir-sam-db-mongodb-sharded-shard1-data-0
  namespace: default
  resourceVersion: "960381"
  uid: c4313ed9-cc99-42e9-a64f-82bea8196629
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 8Gi
  volumeMode: Filesystem
status:
  phase: Pending

Can you tell me what I am missing?

Juan Juan · Accepted Answer · 2021-06-07T15:00:25

The chart exposes two parameters that allow you to choose the StorageClass you want to use for your PVC(s) (otherwise it will use the 'default' one):

configsvr.persistence.storageClass
shardsvr.persistence.storageClass

Find more information in the Parameters section of the README.md

So basically you need to install the chart setting these parameters accordingly.

when installing bitnami mongodb-sharded, i got error from PVCs: no persistent volumes available for this claim and no storage class is set

2 Answers