fix(helm): allow clearing global helm repo EE-1965 (#5991)

* fix(helm): allow clearing global helm repo EE-1965

* fix(helm): show hint if global helm repo is blank EE-1965

* fix(helm): skip loading charts if repo is blank EE-1965

Co-authored-by: Simon Meng <simon.meng@portainer.io>

api/http/handler/settings/settings_update.go

@@ -121,6 +121,8 @@ func (handler *Handler) settingsUpdate(w http.ResponseWriter, r *http.Request) *
 		}
 
 		settings.HelmRepositoryURL = newHelmRepo
+	} else {
+		settings.HelmRepositoryURL = ""
 	}
 
 	if payload.BlackListedLabels != nil {

app/kubernetes/components/helm/helm-templates/helm-templates.controller.js

@@ -98,8 +98,9 @@ export default class HelmTemplatesController {
     try {
       // fetch globally set helm repo and user helm repos (parallel)
       const { GlobalRepository, UserRepositories } = await this.HelmService.getHelmRepositories(this.endpoint.Id);
+      this.state.globalRepository = GlobalRepository;
       const userHelmReposUrls = UserRepositories.map((repo) => repo.URL);
-      const uniqueHelmRepos = [...new Set([GlobalRepository, ...userHelmReposUrls])].map((url) => url.toLowerCase()); // remove duplicates, to lowercase
+      const uniqueHelmRepos = [...new Set([GlobalRepository, ...userHelmReposUrls])].map((url) => url.toLowerCase()).filter((url) => url); // remove duplicates and blank, to lowercase
       this.state.repos = uniqueHelmRepos;
       return uniqueHelmRepos;
     } catch (err) {
@@ -169,6 +170,8 @@ export default class HelmTemplatesController {
         chartsLoading: false,
         resourcePoolsLoading: false,
         viewReady: false,
+        isAdmin: this.Authentication.isAdmin(),
+        globalRepository: undefined,
       };
 
       const helmRepos = await this.getHelmRepoURLs();

app/kubernetes/components/helm/helm-templates/helm-templates.html

@@ -8,6 +8,11 @@
       <i class="fa fa-exclamation-circle orange-icon" aria-hidden="true" style="margin-right: 2px;"></i>
       This is a first version for Helm charts, for more information see this <a href="https://www.portainer.io/blog/portainer-now-with-helm-support" target="_blank">blog post</a>.
     </p>
+    <p ng-if="$ctrl.state.globalRepository === ''">
+      <i class="fa fa-exclamation-circle blue-icon" aria-hidden="true" style="margin-right: 2px;"></i>
+      <span>The Global Helm Repository is not configured.</span>
+      <a ng-if="$ctrl.state.isAdmin" ui-sref="portainer.settings">Configure Global Helm Repository in Settings</a>
+    </p>
   </span>
 </information-panel>
 

app/kubernetes/helm/service.js

@@ -45,7 +45,7 @@ export function HelmService(HelmFactory) {
   }
 
   /**
-   * @description: Show values helm of a helm chart, this basically runs `helm show values`
+   * @description: Get a list of all the helm repositories available for the current user
    * @returns {Promise} - Resolves with an object containing list of user helm repos and default/global settings helm repo
    * @throws {PortainerError} - Rejects with error if helm show fails
    */