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19 changes: 19 additions & 0 deletions
19
pkg/liqo-controller-manager/resourceoffer-controller/controller_config.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| package resourceoffercontroller | ||
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| import ( | ||
| "time" | ||
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| "sigs.k8s.io/controller-runtime/pkg/manager" | ||
| ) | ||
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| // NewResourceOfferController creates and returns a new reconciler for the ResourceOffers. | ||
| func NewResourceOfferController(mgr manager.Manager, resyncPeriod time.Duration) *ResourceOfferReconciler { | ||
| return &ResourceOfferReconciler{ | ||
| Client: mgr.GetClient(), | ||
| Scheme: mgr.GetScheme(), | ||
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| eventsRecorder: mgr.GetEventRecorderFor("ResourceOffer"), | ||
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| resyncPeriod: resyncPeriod, | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,2 @@ | ||
| // Package resourceoffercontroller implements the logic of the ResourceOffer Operator | ||
| package resourceoffercontroller |
103 changes: 103 additions & 0 deletions
103
pkg/liqo-controller-manager/resourceoffer-controller/resourceoffer_controller.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| /* | ||
| Copyright 2021. | ||
| 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. | ||
| */ | ||
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| package resourceoffercontroller | ||
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| import ( | ||
| "context" | ||
| "sync" | ||
| "time" | ||
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| kerrors "k8s.io/apimachinery/pkg/api/errors" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| "k8s.io/client-go/tools/record" | ||
| "k8s.io/klog/v2" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil" | ||
| "sigs.k8s.io/controller-runtime/pkg/predicate" | ||
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| configv1alpha1 "github.com/liqotech/liqo/apis/config/v1alpha1" | ||
| sharingv1alpha1 "github.com/liqotech/liqo/apis/sharing/v1alpha1" | ||
| crdreplicator "github.com/liqotech/liqo/internal/crdReplicator" | ||
| ) | ||
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| // ResourceOfferReconciler reconciles a ResourceOffer object. | ||
| type ResourceOfferReconciler struct { | ||
| client.Client | ||
| Scheme *runtime.Scheme | ||
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| eventsRecorder record.EventRecorder | ||
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| resyncPeriod time.Duration | ||
| configuration *configv1alpha1.ClusterConfig | ||
| configurationMutex sync.RWMutex | ||
| } | ||
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| //+kubebuilder:rbac:groups=sharing.liqo.io,resources=resourceoffers,verbs=get;list;watch;create;update;patch;delete | ||
| //+kubebuilder:rbac:groups=sharing.liqo.io,resources=resourceoffers/status,verbs=get;update;patch | ||
| //+kubebuilder:rbac:groups=sharing.liqo.io,resources=resourceoffers/finalizers,verbs=update | ||
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| // Reconcile is part of the main kubernetes reconciliation loop which aims to | ||
| // move the current state of the cluster closer to the desired state. | ||
| func (r *ResourceOfferReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { | ||
| // get resource offer | ||
| var resourceOffer sharingv1alpha1.ResourceOffer | ||
| if err := r.Get(ctx, req.NamespacedName, &resourceOffer); err != nil { | ||
| if kerrors.IsNotFound(err) { | ||
| // reconcile was triggered by a delete request | ||
| klog.Infof("ResourceRequest %v deleted", req.NamespacedName) | ||
| return ctrl.Result{}, client.IgnoreNotFound(err) | ||
| } | ||
| // not managed error | ||
| klog.Error(err) | ||
| return ctrl.Result{}, err | ||
| } | ||
|
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| // we do that on ResourceOffer creation | ||
| if result, err := r.setOwnerReference(ctx, &resourceOffer); err != nil { | ||
| klog.Error(err) | ||
| return ctrl.Result{}, err | ||
| } else if result != controllerutil.OperationResultNone { | ||
| return ctrl.Result{}, nil | ||
| } | ||
|
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| // filter resource offers and create a virtual-kubelet only for the good ones | ||
| if result, err := r.setResourceOfferPhase(ctx, &resourceOffer); err != nil { | ||
| klog.Error(err) | ||
| return ctrl.Result{}, err | ||
| } else if result != controllerutil.OperationResultNone { | ||
| return ctrl.Result{}, nil | ||
| } | ||
|
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| // TODO: create the virtual-kubelet | ||
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| return ctrl.Result{RequeueAfter: r.resyncPeriod}, nil | ||
| } | ||
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| // SetupWithManager sets up the controller with the Manager. | ||
| func (r *ResourceOfferReconciler) SetupWithManager(mgr ctrl.Manager) error { | ||
| p, err := predicate.LabelSelectorPredicate(crdreplicator.ReplicatedResourcesLabelSelector) | ||
| if err != nil { | ||
| klog.Error(err) | ||
| return err | ||
| } | ||
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| return ctrl.NewControllerManagedBy(mgr). | ||
| For(&sharingv1alpha1.ResourceOffer{}). | ||
| WithEventFilter(p). | ||
| Complete(r) | ||
| } |
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