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Merge pull request fluid-cloudnative#41 from TrafalgarZZZ/dataload-co…
…ntroller Implement DataLoad controller
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117
pkg/controllers/v1alpha1/dataload/dataload_controller.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /* | ||
| 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 dataload | ||
|
|
||
| import ( | ||
| "context" | ||
| datav1alpha1 "github.com/cloudnativefluid/fluid/api/v1alpha1" | ||
| "github.com/cloudnativefluid/fluid/pkg/common" | ||
| cdataload "github.com/cloudnativefluid/fluid/pkg/dataload" | ||
| "github.com/cloudnativefluid/fluid/pkg/utils" | ||
| "github.com/go-logr/logr" | ||
| "github.com/pkg/errors" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| "k8s.io/client-go/tools/record" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| ) | ||
|
|
||
| // DataLoadReconciler reconciles a AlluxioDataLoad object | ||
| type DataLoadReconciler struct { | ||
| Scheme *runtime.Scheme | ||
| *ReconcilerImplement | ||
| } | ||
|
|
||
| // Return a new DataLoad Reconciler | ||
| func NewDataLoadReconciler(client client.Client, | ||
| log logr.Logger, | ||
| scheme *runtime.Scheme, | ||
| recorder record.EventRecorder) *DataLoadReconciler { | ||
| r := &DataLoadReconciler{ | ||
| Scheme: scheme, | ||
| } | ||
| r.ReconcilerImplement = NewReconcilerImplement(client, log, recorder) | ||
| r.Setup() | ||
| return r | ||
| } | ||
|
|
||
| // Reconcile reconciles the AlluxioDataLoad Object | ||
| // +kubebuilder:rbac:groups=data.fluid.io,resources=alluxiodataloads,verbs=get;list;watch;create;update;patch;delete | ||
| // +kubebuilder:rbac:groups=data.fluid.io,resources=alluxiodataloads/status,verbs=get;update;patch | ||
|
|
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| func (r *DataLoadReconciler) Reconcile(req ctrl.Request) (ctrl.Result, error) { | ||
| ctx := cdataload.ReconcileRequestContext{ | ||
| Context: context.Background(), | ||
| Log: r.Log.WithValues("alluxiodataload", req.NamespacedName), | ||
| Recorder: r.Recorder, | ||
| NamespacedName: req.NamespacedName, | ||
| } | ||
|
|
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| ctx.Log.V(1).Info("Reconciling dataload request", "request", req) | ||
|
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| /* | ||
| 1. Load the DataLoad resource object | ||
| */ | ||
| dataload, err := utils.GetDataLoad(r, req.Name, req.Namespace) | ||
| if err != nil { | ||
| if utils.IgnoreNotFound(err) == nil { | ||
| ctx.Log.Info("Dataload not found", "dataload", ctx.NamespacedName) | ||
| return ctrl.Result{}, nil | ||
| } else { | ||
| ctx.Log.Error(err, "Failed to get dataload info") | ||
| return utils.RequeueIfError(errors.Wrap(err, "Failed to get dataload info")) | ||
| } | ||
| } | ||
| ctx.DataLoad = *dataload | ||
| ctx.Log.Info("Dataload found.", "dataload", ctx.DataLoad) | ||
|
|
||
| /* | ||
| 2. delete dataload if necessary | ||
| */ | ||
| if utils.HasDeletionTimestamp(ctx.DataLoad.ObjectMeta) { | ||
| return r.ReconcileDataloadDeletion(ctx) | ||
| } | ||
|
|
||
| /* | ||
| 3. Add finalizer | ||
| */ | ||
| if !utils.ContainsString(ctx.DataLoad.ObjectMeta.GetFinalizers(), common.DATALOAD_FINALIZER) { | ||
| return r.addFinalizerAndRequeue(ctx) | ||
| } | ||
|
|
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| /* | ||
| 4. Do dataload reconciling | ||
| */ | ||
| return r.ReconcileDataload(ctx) | ||
| } | ||
|
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| func (r *DataLoadReconciler) addFinalizerAndRequeue(ctx cdataload.ReconcileRequestContext) (ctrl.Result, error) { | ||
| ctx.DataLoad.ObjectMeta.Finalizers = append(ctx.DataLoad.ObjectMeta.Finalizers, common.DATALOAD_FINALIZER) | ||
| ctx.Log.Info("Add finalizer and Requeue", "finalizer", common.DATALOAD_FINALIZER) | ||
| prevGeneration := ctx.DataLoad.ObjectMeta.GetGeneration() | ||
| if err := r.Update(ctx, &ctx.DataLoad); err != nil { | ||
| ctx.Log.Error(err, "Failed to add finalizer to dataload", "StatusUpdateError", err) | ||
| return utils.RequeueIfError(err) | ||
| } | ||
| return utils.RequeueImmediatelyUnlessGenerationChanged(prevGeneration, ctx.DataLoad.ObjectMeta.GetGeneration()) | ||
| } | ||
|
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| //SetupWithManager setups the manager with AlluxioDataLoad | ||
| func (r *DataLoadReconciler) SetupWithManager(mgr ctrl.Manager) error { | ||
| return ctrl.NewControllerManagedBy(mgr). | ||
| For(&datav1alpha1.AlluxioDataLoad{}). | ||
| Complete(r) | ||
| } |
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