Allow JupyterHub to be uninstalled

- enabled uninstallation
- give it a specific uninstall message
- ajust specs

app/assets/javascripts/clusters/components/uninstall_application_confirmation_modal.vue

@@ -14,7 +14,9 @@ const CUSTOM_APP_WARNING_TEXT = {
   [PROMETHEUS]: s__('ClusterIntegration|All data will be deleted and cannot be restored.'),
   [RUNNER]: s__('ClusterIntegration|Any running pipelines will be canceled.'),
   [KNATIVE]: s__('ClusterIntegration|The associated IP will be deleted and cannot be restored.'),
-  [JUPYTER]: '',
+  [JUPYTER]: s__(
+    'ClusterIntegration|All data not committed to GitLab will be deleted and cannot be restored.',
+  ),
 };
 
 export default {

app/models/clusters/applications/jupyter.rb

@@ -40,12 +40,6 @@ module Clusters
         content_values.to_yaml
       end
 
-      # Will be addressed in future MRs
-      # We need to investigate and document what will be permanently deleted.
-      def allowed_to_uninstall?
-        false
-      end
-
       def install_command
         Gitlab::Kubernetes::Helm::InstallCommand.new(
           name: name,

changelogs/unreleased/feature-uninstall_jupyter_hub_app.yml

+---
+title: Allow JupyterHub to be uninstalled from the UI
+merge_request: 30097
+author:
+type: added

doc/user/clusters/applications.md

@@ -251,6 +251,7 @@ The applications below can be uninstalled.
 
 | Application | GitLab version | Notes |
 | ----------- | -------------- | ----- |
+| JupyterHub  | 12.1+         | All data not committed to GitLab will be deleted and cannot be restored. |
 | Prometheus  | 11.11+         | All data will be deleted and cannot be restored. |
 
 To uninstall an application:
@@ -287,4 +288,3 @@ To avoid installation errors:
   kubectl get secrets/tiller-secret -n gitlab-managed-apps -o "jsonpath={.data['ca\.crt']}" | base64 -d > b.pem
   diff a.pem b.pem
   ```
-

locale/gitlab.pot

@@ -2272,6 +2272,9 @@ msgstr ""
 msgid "ClusterIntegration|Advanced options on this Kubernetes cluster's integration"
 msgstr ""
 
+msgid "ClusterIntegration|All data not committed to GitLab will be deleted and cannot be restored."
+msgstr ""
+
 msgid "ClusterIntegration|All data will be deleted and cannot be restored."
 msgstr ""
 

spec/models/clusters/applications/jupyter_spec.rb

@@ -16,7 +16,7 @@ describe Clusters::Applications::Jupyter do
 
     subject { jupyter.can_uninstall? }
 
-    it { is_expected.to be_falsey }
+    it { is_expected.to be_truthy }
   end
 
   describe '#set_initial_status' do