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Enable CAPI UI extension installation
Signed-off-by: Danil-Grigorev <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,3 +1,6 @@ | ||
| capi: | ||
| enabled: true | ||
| fullnameOverride: capi | ||
| rancherTurtles: | ||
| image: controller | ||
| imageVersion: v0.0.0 | ||
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| @@ -0,0 +1,47 @@ | ||
| <!-- START doctoc generated TOC please keep comment here to allow auto update --> | ||
| <!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE --> | ||
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| - [14. Turtles UI installation](#title) | ||
| - [Context](#context) | ||
| - [Decision](#decision) | ||
| - [Consequences](#consequences) | ||
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| <!-- END doctoc generated TOC please keep comment here to allow auto update --> | ||
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| # Turtles UI installation | ||
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| - Status: proposed | ||
| - Date: 2025-02-17 | ||
| - Authors: @Danil-Grigorev | ||
| - Deciders: @alexander-demicev @furkatgofurov7 @salasberryfin @anmazzotti @mjura @yiannistri | ||
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| ## Context | ||
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| Turtles UI [extension][] provides UI functionality for the Turtles backend. Current installation procedure involves set of mandatory steps described in documentation, which involves: | ||
| - [Installing rancher turtles][turtles-install] chart via dashboard | ||
| - [Installing UI][ui-install] extension via dashboard | ||
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| This process is more complicated then a combined and automated installation, and may also lead to issues like: | ||
| - Missed UI extension installation step | ||
| - Installation of incompatible version of UI extension and Rancher Turles (involving CAPI version) | ||
| - Invalid combination of Turtles and UI versions in case of Turtles chart upgrade | ||
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| [extension]: https://github.com/rancher/capi-ui-extension | ||
| [turtles-install]: https://turtles.docs.rancher.com/turtles/stable/en/getting-started/install-rancher-turtles/using_rancher_dashboard.html#_installation | ||
| [ui-install]: https://turtles.docs.rancher.com/turtles/stable/en/getting-started/install-rancher-turtles/using_rancher_dashboard.html#_capi_ui_extension_installation | ||
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| ## Decision | ||
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| The proposed solution is to install UI extension chart as a `Helm` dependency for the Turtles `Helm` chart. This will leverage `questions.yaml` [integration][] to allow users to configure extension settings or disable UI chart installation. | ||
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| UI extensions use `cattle-ui-plugin-system` namespace. Turtles will leverage a new controller, which will be able to asyncroniously move the `UIPlugin` resource to the namespace, once it is available and Rancher chart is installed. | ||
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| Turtles chart will manage the lifecycle of UI extension by setting ownership references on the `UIPlugin` resource, to ensure automatic deletion on chart removal. | ||
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| [integration]: https://ranchermanager.docs.rancher.com/how-to-guides/new-user-guides/helm-charts-in-rancher/create-apps#questionsyml | ||
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| ## Consequences | ||
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| - UI extension will be managed by Turtles chart | ||
| - Existing UI extension installation will be adopted by Turtles chart upgrade | ||
| - UI extension version will be seamlessly updated with Turtles chart upgrade |
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| @@ -0,0 +1,125 @@ | ||
| /* | ||
| Copyright © 2023 - 2024 SUSE LLC | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
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| package controllers | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
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| rbacv1 "k8s.io/api/rbac/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil" | ||
| "sigs.k8s.io/controller-runtime/pkg/log" | ||
| "sigs.k8s.io/controller-runtime/pkg/predicate" | ||
| ) | ||
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| // UIPluginReconciler reconciles a UIPlugin object. | ||
| type UIPluginReconciler struct { | ||
| client.Client | ||
| *runtime.Scheme | ||
| UncachedClient client.Client | ||
| } | ||
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| // SetupWithManager sets up the controller with the Manager. | ||
| func (r *UIPluginReconciler) SetupWithManager(_ context.Context, mgr ctrl.Manager, _ controller.Options) error { | ||
| uiPlugin := &metav1.PartialObjectMetadata{} | ||
| uiPlugin.SetGroupVersionKind(schema.GroupVersionKind{ | ||
| Group: "catalog.cattle.io", | ||
| Version: "v1", | ||
| Kind: "UIPlugin", | ||
| }) | ||
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| if err := ctrl.NewControllerManagedBy(mgr). | ||
| Named("ui-plugin"). | ||
| For(uiPlugin). | ||
| WithEventFilter(predicate.NewPredicateFuncs(func(plugin client.Object) bool { | ||
| return plugin.GetNamespace() == os.Getenv("POD_NAMESPACE") | ||
| })). | ||
| Complete(r); err != nil { | ||
| return fmt.Errorf("creating UIPlugin controller: %w", err) | ||
| } | ||
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| return nil | ||
| } | ||
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| //+kubebuilder:rbac:groups=catalog.cattle.io,resources=uiplugins,verbs=get;list;watch;create;patch;delete | ||
| //+kubebuilder:rbac:groups=rbac.authorization.k8s.io,resourceNames=rancher-turtles-manager-role,resources=clusterroles,verbs=get;list | ||
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| // Reconcile moves the UIPlugin into cattle-ui-plugin-system namespace. | ||
| func (r *UIPluginReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { | ||
| log := log.FromContext(ctx) | ||
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| plugin := &unstructured.Unstructured{} | ||
| plugin.SetKind("UIPlugin") | ||
| plugin.SetAPIVersion("catalog.cattle.io/v1") | ||
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| if err := r.Client.Get(ctx, req.NamespacedName, plugin); err != nil { | ||
| log.Error(err, "Unable to get UIPlugin") | ||
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| return ctrl.Result{}, client.IgnoreNotFound(err) | ||
| } | ||
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| if plugin.GetDeletionTimestamp() != nil { | ||
| return ctrl.Result{}, nil | ||
| } | ||
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| role := &rbacv1.ClusterRole{} | ||
| if err := r.UncachedClient.Get(ctx, types.NamespacedName{ | ||
| Name: "rancher-turtles-manager-role", | ||
| }, role); err != nil { | ||
| log.Error(err, "Unable to get turtles clusterRole") | ||
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| return ctrl.Result{}, err | ||
| } | ||
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| destination := &unstructured.Unstructured{} | ||
| destination.SetGroupVersionKind(plugin.GroupVersionKind()) | ||
| destination.SetName(plugin.GetName()) | ||
| destination.SetNamespace("cattle-ui-plugin-system") | ||
| destination.Object["spec"] = plugin.Object["spec"] | ||
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| if err := controllerutil.SetOwnerReference(role, destination, r.Scheme); err != nil { | ||
| log.Error(err, "Unable to set ClusterRole owner on UIPlugin") | ||
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| return ctrl.Result{}, err | ||
| } | ||
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| if err := r.Patch(ctx, destination, client.Apply, []client.PatchOption{ | ||
| client.ForceOwnership, | ||
| client.FieldOwner("ui-plugin-controller"), | ||
| }...); err != nil { | ||
| log.Error(err, "Unable to patch UIPlugin") | ||
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| return ctrl.Result{}, err | ||
| } | ||
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| if err := r.Delete(ctx, plugin); err != nil { | ||
| log.Error(err, "Unable to cleanup source UIPlugin") | ||
|
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| return ctrl.Result{}, err | ||
| } | ||
|
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| return ctrl.Result{}, nil | ||
| } |
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