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reconciler.go
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/
reconciler.go
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/*
Copyright 2024 Nokia.
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.
*/
package repository
import (
"context"
"fmt"
"reflect"
"time"
"github.com/henderiw/logger/log"
"github.com/henderiw/resource"
"github.com/kform-dev/pkg-server/apis/condition"
configv1alpha1 "github.com/kform-dev/pkg-server/apis/config/v1alpha1"
"github.com/kform-dev/pkg-server/pkg/cache"
"github.com/kform-dev/pkg-server/pkg/reconcilers"
"github.com/kform-dev/pkg-server/pkg/reconcilers/ctrlconfig"
"github.com/pkg/errors"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/client-go/tools/record"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/event"
)
func init() {
reconcilers.Register("repository", &reconciler{})
}
const (
controllerName = "RepositoryController"
finalizer = "repository.config.pkg.kform.dev/finalizer"
// errors
errGetCr = "cannot get cr"
errUpdateStatus = "cannot update status"
)
//+kubebuilder:rbac:groups=config.kform.dev,resources=repositories,verbs=get;list;watch;create;update;patch;delete
//+kubebuilder:rbac:groups=config.kform.dev,resources=repositories/status,verbs=get;update;patch
// SetupWithManager sets up the controller with the Manager.
func (r *reconciler) SetupWithManager(ctx context.Context, mgr ctrl.Manager, c interface{}) (map[schema.GroupVersionKind]chan event.GenericEvent, error) {
cfg, ok := c.(*ctrlconfig.ControllerConfig)
if !ok {
return nil, fmt.Errorf("cannot initialize, expecting controllerConfig, got: %s", reflect.TypeOf(c).Name())
}
/*
if err := configv1alpha1.AddToScheme(mgr.GetScheme()); err != nil {
return nil, err
}
*/
r.Client = mgr.GetClient()
r.finalizer = resource.NewAPIFinalizer(mgr.GetClient(), finalizer)
r.repoCache = cfg.RepoCache
r.recorder = mgr.GetEventRecorderFor(controllerName)
return nil, ctrl.NewControllerManagedBy(mgr).
Named(controllerName).
For(&configv1alpha1.Repository{}).
Complete(r)
}
type reconciler struct {
client.Client
finalizer *resource.APIFinalizer
repoCache *cache.Cache
recorder record.EventRecorder
}
func (r *reconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
ctx = ctrlconfig.InitContext(ctx, controllerName, req.NamespacedName)
log := log.FromContext(ctx)
log.Debug("reconcile")
cr := &configv1alpha1.Repository{}
if err := r.Get(ctx, req.NamespacedName, cr); err != nil {
// if the resource no longer exists the reconcile loop is done
if resource.IgnoreNotFound(err) != nil {
log.Error(errGetCr, "err", err)
return ctrl.Result{}, errors.Wrap(resource.IgnoreNotFound(err), errGetCr)
}
return ctrl.Result{}, nil
}
cr = cr.DeepCopy()
if !cr.GetDeletionTimestamp().IsZero() {
// close the repository cache for this repo
if err := r.repoCache.Close(ctx, cr); err != nil {
//log.Error("cannot close repository cache", "error", err)
cr.SetConditions(condition.Failed(err.Error()))
r.recorder.Eventf(cr, corev1.EventTypeWarning,
"Error", "error %s", err.Error())
return ctrl.Result{Requeue: true}, errors.Wrap(r.Status().Update(ctx, cr), errUpdateStatus)
}
// remove the finalizer
if err := r.finalizer.RemoveFinalizer(ctx, cr); err != nil {
//log.Error("cannot remove finalizer", "error", err)
cr.SetConditions(condition.Failed(err.Error()))
r.recorder.Eventf(cr, corev1.EventTypeWarning,
"Error", "error %s", err.Error())
return ctrl.Result{Requeue: true}, errors.Wrap(r.Status().Update(ctx, cr), errUpdateStatus)
}
//log.Info("Successfully deleted resource")
return ctrl.Result{}, nil
}
if err := r.finalizer.AddFinalizer(ctx, cr); err != nil {
//log.Error("cannot add finalizer", "error", err)
cr.SetConditions(condition.Failed(err.Error()))
r.recorder.Eventf(cr, corev1.EventTypeWarning,
"Error", "error %s", err.Error())
return ctrl.Result{Requeue: true}, errors.Wrap(r.Status().Update(ctx, cr), errUpdateStatus)
}
if _, err := r.repoCache.Open(ctx, cr); err != nil {
//log.Error("cannot open cache", "error", err)
cr.SetConditions(condition.Failed(err.Error()))
r.recorder.Eventf(cr, corev1.EventTypeWarning,
"Error", "error %s", err.Error())
return ctrl.Result{Requeue: true}, errors.Wrap(r.Status().Update(ctx, cr), errUpdateStatus)
}
cr.SetConditions(condition.Ready())
r.recorder.Eventf(cr, corev1.EventTypeNormal,
"repository", "ready")
return ctrl.Result{RequeueAfter: 1 * time.Minute}, errors.Wrap(r.Status().Update(ctx, cr), errUpdateStatus)
}