Merge pull request #41799 from johscheuer/fix-quobyte-example

Automatic merge from submit-queue

Remove unnecessary constants and add type to secret

**What this PR does / why we need it**:
Adds the type field to the secret for the `persistent-volume-provisioning` example of Quobyte. Also remove unnecessary constants in Quobyte Code base.

FYI
@rootfs @saad-ali @quolix

examples/persistent-volume-provisioning/README.md

@@ -215,7 +215,7 @@ parameters:
 * **user** maps all access to this user. Default is `root`.
 * **group** maps all access to this group. Default is `nfsnobody`.
 * **quobyteConfig** use the specified configuration to create the volume. You can create a new configuration or modify an existing one with the Web console or the quobyte CLI. Default is `BASE`
-* **quobyteTenant** use the specified tenant ID to create/delete the volume. This Quobyte tenant has to be already present in Quobyte. Default is `DEFAULT`
+* **quobyteTenant** use the specified tenant ID to create/delete the volume. This Quobyte tenant has to be already present in Quobyte. For Quobyte < 1.4 use an empty string `""` as `DEFAULT` tenant. Default is `DEFAULT`
 
 First create Quobyte admin's Secret in the system namespace. Here the Secret is created in `kube-system`:
 

examples/persistent-volume-provisioning/quobyte/quobyte-admin-secret.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: quobyte-admin-secret
+type: "kubernetes.io/quobyte"
 data:
   password: cXVvYnl0ZQ==
   user: YWRtaW4=

pkg/volume/quobyte/quobyte.go

@@ -61,10 +61,6 @@ var _ volume.Deleter = &quobyteVolumeDeleter{}
 
 const (
 	quobytePluginName = "kubernetes.io/quobyte"
-
-	annotationQuobyteAPIServer          = "quobyte.kubernetes.io/api"
-	annotationQuobyteAPISecret          = "quobyte.kubernetes.io/apiuser"
-	annotationQuobyteAPISecretNamespace = "quobyte.kubernetes.io/apipassword"
 )
 
 func (plugin *quobytePlugin) Init(host volume.VolumeHost) error {