I'm trying to deploy mongodb with the kubernetes operator on AWS EKS with EFS for the storage class. Just following the documentation examples here:

https://github.com/mongodb/mongodb-kubernetes-operator

I don't understand how to define the PVC naming properly. I've looked through the Github issues and Stack Overflow. Just not finding the example to resolve what seems to be a simple issue.

apiVersion: mongodb.com/v1
kind: MongoDB
metadata:
  name: mongodb
spec:
  members: 1
  type: ReplicaSet
  version: "4.2.6"
  security:
    authentication:
      modes: ["SCRAM"]
  users:
    - name: my-user
      db: admin
      passwordSecretRef: # a reference to the secret that will be used to generate the user's password
        name: my-user-password
      roles:
        - name: clusterAdmin
          db: admin
        - name: userAdminAnyDatabase
          db: admin
      scramCredentialsSecretName: my-scram
  statefulSet:
    spec:
     volumeClaimTemplates:
       - metadata:
         name: data-volume
         spec:
          accessModes: [ "ReadWriteOnce" ]
          resources:
            requests:
              storage: 1Gi
            storageClassName: "efs-sc"

Events:

create Pod mongodb-0 in StatefulSet mongodb failed error: failed to create PVC -mongodb-0: PersistentVolumeClaim "-mongodb-0" is invalid: metadata.name: Invalid value: "-mongodb-0": a DNS-1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')