Splunk Operator: no way to utilize pre-created EBS

[yaroslav-nakonechnikov]

Please select the type of request

Feature Request

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Describe the request
At the moment storage is being created dynamically, which is not good in a lot of cases: no way to put correct tags, for example.

especially very useful for single nodes, like standalone or license manager.

Expected behavior
there is a way to pass vol-id identifier.
maybe as array(or map), as there maybe several replicas. and in that case field "replicas" may be omitted, if several ids passed.

[yaroslav-nakonechnikov]

this also leads to one of the issues with creating pvc's: no way to extend disks in case it is needed.
You will be forced to recreate ebs.

if somebody will try to edit pvc, so there will be next error:

error: persistentvolumeclaims "pvc-var-splunk-prod-monitoring-console-0" could not be patched: persistentvolumeclaims "pvc-var-splunk-prod-monitoring-console-0" is forbidden: only dynamically provisioned pvc can be resized and the storageclass that provisions the pvc must support resize

storageclass:

$ kubectl get storageclass gp3 -o yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"storage.k8s.io/v1","kind":"StorageClass","metadata":{"annotations":{"storageclass.kubernetes.io/is-default-class":"true"},"name":"gp3"},"parameters":{"csi.storage.k8s.io/fstype":"ext4","encrypted":"true","kmsKeyId":"arn:aws:kms:eu-central-1:111111111111:alias/proj-prod","type":"gp3"},"provisioner":"ebs.csi.aws.com","volumeBindingMode":"WaitForFirstConsumer"}
    storageclass.kubernetes.io/is-default-class: "true"
  creationTimestamp: "2023-12-05T17:40:23Z"
  name: gp3
  resourceVersion: "202093653"
  uid: 6cae9dd7-be8e-479a-9e5d-39c99948b502
parameters:
  csi.storage.k8s.io/fstype: ext4
  encrypted: "true"
  kmsKeyId: arn:aws:kms:eu-central-1:111111111111:alias/proj-prod
  type: gp3
provisioner: ebs.csi.aws.com
reclaimPolicy: Delete
volumeBindingMode: WaitForFirstConsumer

[vivekr-splunk]

@yaroslav-nakonechnikov we will look into this issue and get back to you. have you tried recreating the pvc before , CR is created with the same names?