126 lines
4.4 KiB
Go
126 lines
4.4 KiB
Go
/*
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Copyright 2023.
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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 controllers
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import (
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"context"
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"github.com/go-logr/logr"
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"k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/runtime"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/log"
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formolv1alpha1 "github.com/desmo999r/formol/api/v1alpha1"
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formolutils "github.com/desmo999r/formol/pkg/utils"
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)
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// BackupConfigurationReconciler reconciles a BackupConfiguration object
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type BackupConfigurationReconciler struct {
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client.Client
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Scheme *runtime.Scheme
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Log logr.Logger
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context.Context
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}
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//+kubebuilder:rbac:groups=formol.desmojim.fr,resources=backupconfigurations,verbs=get;list;watch;create;update;patch;delete
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//+kubebuilder:rbac:groups=formol.desmojim.fr,resources=backupconfigurations/status,verbs=get;update;patch
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//+kubebuilder:rbac:groups=formol.desmojim.fr,resources=backupconfigurations/finalizers,verbs=update
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// Reconcile is part of the main kubernetes reconciliation loop which aims to
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// move the current state of the cluster closer to the desired state.
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// TODO(user): Modify the Reconcile function to compare the state specified by
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// the BackupConfiguration object against the actual cluster state, and then
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// perform operations to make the cluster state reflect the state specified by
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// the user.
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//
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// For more details, check Reconcile and its Result here:
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// - https://pkg.go.dev/sigs.k8s.io/controller-runtime@v0.13.1/pkg/reconcile
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func (r *BackupConfigurationReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
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r.Context = ctx
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r.Log = log.FromContext(ctx)
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r.Log.V(1).Info("Enter Reconcile with req", "req", req, "reconciler", r)
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backupConf := formolv1alpha1.BackupConfiguration{}
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err := r.Get(ctx, req.NamespacedName, &backupConf)
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if err != nil {
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if errors.IsNotFound(err) {
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return ctrl.Result{}, nil
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}
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return ctrl.Result{}, err
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}
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finalizerName := "finalizer.backupconfiguration.formol.desmojim.fr"
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if !backupConf.ObjectMeta.DeletionTimestamp.IsZero() {
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r.Log.V(0).Info("backupconf being deleted", "backupconf", backupConf.ObjectMeta.Finalizers)
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if formolutils.ContainsString(backupConf.ObjectMeta.Finalizers, finalizerName) {
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_ = r.DeleteSidecar(backupConf)
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_ = r.DeleteCronJob(backupConf)
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backupConf.ObjectMeta.Finalizers = formolutils.RemoveString(backupConf.ObjectMeta.Finalizers, finalizerName)
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if err := r.Update(ctx, &backupConf); err != nil {
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r.Log.Error(err, "unable to remove finalizer")
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return ctrl.Result{}, err
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}
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}
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// We have been deleted. Return here
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r.Log.V(0).Info("backupconf deleted", "backupconf", backupConf.Name)
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return ctrl.Result{}, nil
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}
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// Add finalizer
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if !formolutils.ContainsString(backupConf.ObjectMeta.Finalizers, finalizerName) {
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r.Log.V(0).Info("adding finalizer", "backupconf", backupConf)
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backupConf.ObjectMeta.Finalizers = append(backupConf.ObjectMeta.Finalizers, finalizerName)
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if err := r.Update(ctx, &backupConf); err != nil {
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r.Log.Error(err, "unable to append finalizer")
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return ctrl.Result{}, err
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}
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// backupConf has been updated. Exit here. The reconciler will be called again so we can finish the job.
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return ctrl.Result{}, nil
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}
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if err := r.AddCronJob(backupConf); err != nil {
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return ctrl.Result{}, err
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} else {
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backupConf.Status.ActiveCronJob = true
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}
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if err := r.AddSidecar(backupConf); err != nil {
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r.Log.Error(err, "unable to add sidecar container")
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return ctrl.Result{}, err
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} else {
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backupConf.Status.ActiveSidecar = true
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}
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if err := r.Status().Update(ctx, &backupConf); err != nil {
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r.Log.Error(err, "Unable to update BackupConfiguration status")
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return ctrl.Result{}, err
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}
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return ctrl.Result{}, nil
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}
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// SetupWithManager sets up the controller with the Manager.
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func (r *BackupConfigurationReconciler) SetupWithManager(mgr ctrl.Manager) error {
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return ctrl.NewControllerManagedBy(mgr).
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For(&formolv1alpha1.BackupConfiguration{}).
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Complete(r)
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}
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