133 lines
4.1 KiB
Go
133 lines
4.1 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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"time"
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"github.com/go-logr/logr"
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"k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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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/controller/controllerutil"
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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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)
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const (
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sessionState string = ".metadata.state"
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finalizerName string = "finalizer.backupsession.formol.desmojim.fr"
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)
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// BackupSessionReconciler reconciles a BackupSession object
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type BackupSessionReconciler 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=backupsessions,verbs=get;list;watch;create;update;patch;delete
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//+kubebuilder:rbac:groups=formol.desmojim.fr,resources=backupsessions/status,verbs=get;update;patch
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//+kubebuilder:rbac:groups=formol.desmojim.fr,resources=backupsessions/finalizers,verbs=update
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func (r *BackupSessionReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
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r.Log = log.FromContext(ctx)
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r.Context = ctx
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r.Log.V(1).Info("Enter Reconcile with req", "req", req, "reconciler", r)
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backupSession := formolv1alpha1.BackupSession{}
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err := r.Get(ctx, req.NamespacedName, &backupSession)
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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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backupConf := formolv1alpha1.BackupConfiguration{}
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if err := r.Get(ctx, client.ObjectKey{
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Namespace: backupSession.Spec.Ref.Namespace,
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Name: backupSession.Spec.Ref.Name,
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}, &backupConf); err != nil {
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r.Log.Error(err, "unable to get BackupConfiguration")
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return ctrl.Result{}, err
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}
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if !backupSession.ObjectMeta.DeletionTimestamp.IsZero() {
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r.Log.V(0).Info("BackupSession is being deleted")
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if controllerutil.ContainsFinalizer(&backupSession, finalizerName) {
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controllerutil.RemoveFinalizer(&backupSession, finalizerName)
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err := r.Update(ctx, &backupSession)
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if err != nil {
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r.Log.Error(err, "unable to remove finalizer")
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}
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return ctrl.Result{}, err
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}
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}
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if !controllerutil.ContainsFinalizer(&backupSession, finalizerName) {
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controllerutil.AddFinalizer(&backupSession, finalizerName)
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err := r.Update(ctx, &backupSession)
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if err != nil {
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r.Log.Error(err, "unable to add finalizer")
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}
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return ctrl.Result{}, err
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}
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switch backupSession.Status.SessionState {
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case formolv1alpha1.New:
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if r.isBackupOngoing(backupConf) {
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r.Log.V(0).Info("there is an ongoing backup. Let's reschedule this operation")
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return ctrl.Result{
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RequeueAfter: 30 * time.Second,
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}, nil
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}
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default:
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// BackupSession has just been created
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backupSession.Status.SessionState = formolv1alpha1.New
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backupSession.Status.StartTime = &metav1.Time{Time: time.Now()}
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if err := r.Status().Update(ctx, &backupSession); err != nil {
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r.Log.Error(err, "unable to update BackupSession.Status")
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return ctrl.Result{}, err
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}
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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 *BackupSessionReconciler) SetupWithManager(mgr ctrl.Manager) error {
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if err := mgr.GetFieldIndexer().IndexField(
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context.Background(),
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&formolv1alpha1.BackupSession{},
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sessionState,
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func(rawObj client.Object) []string {
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session := rawObj.(*formolv1alpha1.BackupSession)
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return []string{
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string(session.Status.SessionState),
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}
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}); err != nil {
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return err
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}
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return ctrl.NewControllerManagedBy(mgr).
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For(&formolv1alpha1.BackupSession{}).
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Complete(r)
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}
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