101 lines
3.1 KiB
Go
101 lines
3.1 KiB
Go
/*
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Copyright 2024 The Kubeflow authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package validatingwebhookconfiguration
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import (
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"context"
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"fmt"
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admissionregistrationv1 "k8s.io/api/admissionregistration/v1"
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"k8s.io/apimachinery/pkg/types"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/builder"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/controller"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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"github.com/kubeflow/spark-operator/v2/pkg/certificate"
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)
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var (
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logger = ctrl.Log.WithName("")
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)
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// Reconciler reconciles a ValidatingWebhookConfiguration object.
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type Reconciler struct {
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client client.Client
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certProvider *certificate.Provider
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name string
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}
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// ValidatingWebhookConfigurationReconciler implements reconcile.Reconciler interface.
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var _ reconcile.Reconciler = &Reconciler{}
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// NewReconciler creates a new ValidatingWebhookConfigurationReconciler instance.
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func NewReconciler(client client.Client, certProvider *certificate.Provider, name string) *Reconciler {
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return &Reconciler{
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client: client,
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certProvider: certProvider,
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name: name,
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}
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}
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func (r *Reconciler) SetupWithManager(mgr ctrl.Manager, options controller.Options) error {
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return ctrl.NewControllerManagedBy(mgr).
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Named("validating-webhook-configuration-controller").
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Watches(
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&admissionregistrationv1.ValidatingWebhookConfiguration{},
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NewEventHandler(),
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builder.WithPredicates(
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NewEventFilter(r.name),
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),
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).
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WithOptions(options).
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Complete(r)
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}
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// Reconcile implements reconcile.Reconciler.
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func (r *Reconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
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logger.Info("Updating CA bundle of ValidatingWebhookConfiguration", "name", req.Name)
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if err := r.updateValidatingWebhookConfiguration(ctx, req.NamespacedName); err != nil {
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return ctrl.Result{Requeue: true}, nil
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}
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return ctrl.Result{}, nil
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}
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func (r *Reconciler) updateValidatingWebhookConfiguration(ctx context.Context, key types.NamespacedName) error {
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webhook := &admissionregistrationv1.ValidatingWebhookConfiguration{}
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if err := r.client.Get(ctx, key, webhook); err != nil {
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return fmt.Errorf("failed to get validating webhook configuration %v: %v", key, err)
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}
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caBundle, err := r.certProvider.CACert()
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if err != nil {
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return fmt.Errorf("failed to get CA certificate: %v", err)
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}
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newWebhook := webhook.DeepCopy()
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for i := range newWebhook.Webhooks {
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newWebhook.Webhooks[i].ClientConfig.CABundle = caBundle
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}
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if err := r.client.Update(ctx, newWebhook); err != nil {
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return fmt.Errorf("failed to update validating webhook configuration %v: %v", key, err)
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}
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return nil
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}
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