95 lines
2.8 KiB
Go
95 lines
2.8 KiB
Go
/*
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Copyright 2023 The Flux 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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http://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 controller
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import (
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"context"
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corev1 "k8s.io/api/core/v1"
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kuberecorder "k8s.io/client-go/tools/record"
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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/controllerutil"
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apiv1 "github.com/fluxcd/notification-controller/api/v1"
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apiv1beta3 "github.com/fluxcd/notification-controller/api/v1beta3"
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"github.com/fluxcd/pkg/runtime/patch"
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)
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// +kubebuilder:rbac:groups=notification.toolkit.fluxcd.io,resources=alerts,verbs=get;list;watch;create;update;patch;delete
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// +kubebuilder:rbac:groups="",resources=events,verbs=create;patch
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// AlertReconciler reconciles an Alert object to migrate it to static Alert.
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type AlertReconciler struct {
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client.Client
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kuberecorder.EventRecorder
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ControllerName string
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}
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func (r *AlertReconciler) SetupWithManager(mgr ctrl.Manager) error {
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return ctrl.NewControllerManagedBy(mgr).
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For(&apiv1beta3.Alert{}, builder.WithPredicates(finalizerPredicate{})).
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Complete(r)
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}
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func (r *AlertReconciler) Reconcile(ctx context.Context, req ctrl.Request) (result ctrl.Result, retErr error) {
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log := ctrl.LoggerFrom(ctx)
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obj := &apiv1beta3.Alert{}
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if err := r.Get(ctx, req.NamespacedName, obj); err != nil {
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return ctrl.Result{}, client.IgnoreNotFound(err)
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}
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// Early return if no migration is needed.
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if !controllerutil.ContainsFinalizer(obj, apiv1.NotificationFinalizer) {
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return ctrl.Result{}, nil
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}
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// Examine if the object is under deletion.
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var delete bool
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if !obj.ObjectMeta.DeletionTimestamp.IsZero() {
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delete = true
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}
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// Skip if it's suspend and not being deleted.
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if obj.Spec.Suspend && !delete {
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log.Info("reconciliation is suspended for this object")
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return ctrl.Result{}, nil
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}
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patcher, err := patch.NewHelper(obj, r.Client)
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if err != nil {
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return ctrl.Result{}, err
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}
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defer func() {
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if err := patcher.Patch(ctx, obj); err != nil {
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retErr = err
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}
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}()
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// Remove the notification-controller finalizer.
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controllerutil.RemoveFinalizer(obj, apiv1.NotificationFinalizer)
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log.Info("removed finalizer from Alert to migrate to static Alert")
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r.Event(obj, corev1.EventTypeNormal, "Migration", "removed finalizer from Alert to migrate to static Alert")
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return
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}
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