/
resourcequota_controller.go
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/
resourcequota_controller.go
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/*
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 controllers
import (
"context"
"fmt"
"github.com/go-logr/logr"
claim "github.com/tmax-cloud/hypercloud-single-operator/api/v1alpha1"
"github.com/tmax-cloud/hypercloud-single-operator/util"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/cluster-api/util/patch"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/event"
"sigs.k8s.io/controller-runtime/pkg/predicate"
)
// ResourceQuotaReconciler reconciles a ResourceQuota object
type ResourceQuotaReconciler struct {
client.Client
Log logr.Logger
Scheme *runtime.Scheme
patchHelper *patch.Helper
}
// +kubebuilder:rbac:groups=*,resources=*,verbs=*
func (r *ResourceQuotaReconciler) Reconcile(_ context.Context, req ctrl.Request) (ctrl.Result, error) {
_ = context.Background()
reqLogger := r.Log
reqLogger.Info("Reconciling ResourceQuota")
resourcequota := &v1.ResourceQuota{}
if err := r.Get(context.TODO(), req.NamespacedName, resourcequota); err != nil {
if errors.IsNotFound(err) {
reqLogger.Info("ResourceQuota resource not found. Ignoring since object must be deleted.")
return ctrl.Result{}, nil
} else {
reqLogger.Error(err, "Failed to get ResourceQuota")
return ctrl.Result{}, err
}
}
//set helper
if helper, err := patch.NewHelper(resourcequota, r.Client); err != nil {
return ctrl.Result{}, err
} else {
r.patchHelper = helper
}
defer func() {
r.patchHelper.Patch(context.TODO(), resourcequota)
}()
defer func() {
s := recover()
if s != nil {
fmt.Println("Error !! : ", s)
}
}()
if resourcequota.DeletionTimestamp != nil {
if resourcequota.Labels != nil && resourcequota.Labels["fromClaim"] != "" {
if resourcequota.Finalizers != nil {
resourcequota.Finalizers = util.RemoveValue(resourcequota.Finalizers, "resourcequota/finalizers")
reqLogger.Info("Delete Finalizer [ resourcequota/finalizers ] Success")
}
r.replaceRQCStatus(resourcequota.Labels["fromClaim"], resourcequota.Name, resourcequota.Namespace, claim.ResourceQuotaClaimStatusTypeDeleted)
reqLogger.Info("Update ResourceQuotaClaim [ " + resourcequota.Labels["fromClaim"] + " ] Status to ResourceQuota Deleted")
}
}
return ctrl.Result{}, nil
}
// SetupWithManager sets up the controller with the Manager.
func (r *ResourceQuotaReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&v1.ResourceQuota{}).
WithEventFilter(
predicate.Funcs{
// Reconciling only when ResourceQuota is deleted,
// which is noticed by DeletionTimestamp
DeleteFunc: func(e event.DeleteEvent) bool {
return false
},
CreateFunc: func(e event.CreateEvent) bool {
return false
},
UpdateFunc: func(e event.UpdateEvent) bool {
newRQ := e.ObjectNew.(*v1.ResourceQuota).DeepCopy()
if newRQ.DeletionTimestamp != nil {
return true
}
return false
},
GenericFunc: func(e event.GenericEvent) bool {
return false
},
},
).
Complete(r)
}
func (r *ResourceQuotaReconciler) replaceRQCStatus(rqcName string, rqName string, rqNamespace string, status string) {
reqLogger := r.Log
rqcFound := &claim.ResourceQuotaClaim{}
if err := r.Get(context.TODO(), types.NamespacedName{Name: rqcName, Namespace: rqNamespace}, rqcFound); err != nil && errors.IsNotFound(err) {
reqLogger.Info("ResourceQuotaClaim [ " + rqcName + " ] Not Exists, Do Nothing")
} else {
rqcFound.Status.Status = status
rqcFound.Status.Reason = "ResourceQuota [ " + rqName + " ] Deleted"
if err := r.Status().Update(context.TODO(), rqcFound); err != nil {
reqLogger.Error(err, "Failed to Update ResourceQuotaClaim [ "+rqcName+" ]")
panic("Failed to Update ResourceQuotaClaim [ " + rqcName + " ]")
} else {
reqLogger.Info("Update ResourceQuotaClaim [ " + rqcName + " ] Success")
}
}
}