[DRAFT] [RHOAIENG-19278] Custom namespace field for workbenches

[robotmaxtron]

Description

Exposes a new field in the DSC for Workbenches, allowing for the configuration of the namespace during component enablement.

https://issues.redhat.com/browse/RHOAIENG-19278

How Has This Been Tested?

Built and deployed the image to a 4.17 cluster and used the namespace custom-wb-ns for the new field. The workbench component shows ready and is visible in the spec.

Screenshot or short clip

oc describe dsc
Name:         default
Namespace:
Labels:       <none>
Annotations:  <none>
API Version:  datasciencecluster.opendatahub.io/v1
Kind:         DataScienceCluster
Metadata:
  Creation Timestamp:  2025-02-28T14:20:59Z
  Generation:          1
  Resource Version:    23014527
  UID:                 1764e67e-7297-4f01-9e70-87722b2e4748
Spec:
  Components:
    Codeflare:
      Management State:  Removed
    Dashboard:
      Management State:  Managed
    Datasciencepipelines:
      Management State:  Managed
    Feastoperator:
    Kserve:
      Management State:  Removed
      Nim:
        Management State:  Managed
      Serving:
        Ingress Gateway:
          Certificate:
            Type:          OpenshiftDefaultIngress
        Management State:  Managed
        Name:              knative-serving
    Kueue:
    Modelmeshserving:
      Management State:  Managed
    Modelregistry:
      Registries Namespace:  odh-model-registries
    Ray:
      Management State:  Removed
    Trainingoperator:
    Trustyai:
    Workbenches:
      Management State:     Managed
      Workbench Namespace:  custom-wb-ns

Merge criteria

• You have read the contributors guide.
• Commit messages are meaningful - have a clear and concise summary and detailed explanation of what was changed and why.
• Pull Request contains a description of the solution, a link to the JIRA issue, and to any dependent or related Pull Request.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

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[github-actions]

This PR can't be merged just yet 😢

Please run make generate manifests api-docs and commit the changes.

For more info: https://github.com/opendatahub-io/opendatahub-operator/actions/runs/13590809946