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Start building out template controller
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| /* | ||
| Copyright 2020 The Kubernetes Authors. | ||
| 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 contains controllers for Tinkerbell. | ||
| package controllers | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
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| "github.com/go-logr/logr" | ||
| tinkv1alpha1 "github.com/tinkerbell/cluster-api-provider-tinkerbell/tink/api/v1alpha1" | ||
| "github.com/tinkerbell/tink/protos/hardware" | ||
| apierrors "k8s.io/apimachinery/pkg/api/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" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil" | ||
| ) | ||
|
|
||
| // HardwareReconciler implements Reconciler interface by managing Tinkerbell hardware. | ||
| type HardwareReconciler struct { | ||
| client.Client | ||
| HardwareClient hardware.HardwareServiceClient | ||
| Log logr.Logger | ||
| Recorder record.EventRecorder | ||
| Scheme *runtime.Scheme | ||
| } | ||
|
|
||
| // SetupWithManager configures reconciler with a given manager. | ||
| func (r *HardwareReconciler) SetupWithManager(mgr ctrl.Manager) error { | ||
| return ctrl.NewControllerManagedBy(mgr). | ||
| For(&tinkv1alpha1.Hardware{}). | ||
| Complete(r) | ||
| } | ||
|
|
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| // +kubebuilder:rbac:groups=tinkerbell.org,resources=hardware;hardware/status,verbs=get;list;watch;create;update;patch;delete | ||
|
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| // Reconcile ensures state of Tinkerbell hardware. | ||
| func (r *HardwareReconciler) Reconcile(req ctrl.Request) (ctrl.Result, error) { | ||
| ctx := context.Background() | ||
| logger := r.Log.WithValues("hardware", req.NamespacedName.Name) | ||
|
|
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| // Fetch the hardware. | ||
| hardware := &tinkv1alpha1.Hardware{} | ||
| if err := r.Get(ctx, req.NamespacedName, hardware); err != nil { | ||
| if apierrors.IsNotFound(err) { | ||
| return ctrl.Result{}, nil | ||
| } | ||
|
|
||
| return ctrl.Result{}, fmt.Errorf("getting hardware: %w", err) | ||
| } | ||
|
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| // Add finalizer first if not exist to avoid the race condition between init and delete | ||
| if !controllerutil.ContainsFinalizer(hardware, tinkv1alpha1.HardwareFinalizer) { | ||
| before := hardware.DeepCopy() | ||
| controllerutil.AddFinalizer(hardware, tinkv1alpha1.HardwareFinalizer) | ||
|
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| if err := r.Client.Patch(ctx, hardware, client.MergeFrom(before)); err != nil { | ||
| logger.Error(err, "Failed to add finalizer to hardware") | ||
|
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| return ctrl.Result{}, fmt.Errorf("failed to add finalizer: %w", err) | ||
| } | ||
|
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| return ctrl.Result{}, nil | ||
| } | ||
|
|
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| // Handle deleted hardware. | ||
| if !hardware.DeletionTimestamp.IsZero() { | ||
| return r.reconcileDelete(hardware) | ||
| } | ||
|
|
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| return r.reconcileNormal(hardware) | ||
| } | ||
|
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| func (r *HardwareReconciler) reconcileNormal(hardware *tinkv1alpha1.Hardware) (ctrl.Result, error) { | ||
| logger := r.Log.WithValues("hardware", hardware.Name) | ||
| err := ErrNotImplemented | ||
|
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| logger.Error(err, "Not yet implemented") | ||
|
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| return ctrl.Result{}, err | ||
| } | ||
|
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| func (r *HardwareReconciler) reconcileDelete(hardware *tinkv1alpha1.Hardware) (ctrl.Result, error) { | ||
| logger := r.Log.WithValues("hardware", hardware.Name) | ||
| err := ErrNotImplemented | ||
|
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| logger.Error(err, "Not yet implemented") | ||
|
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| // controllerutil.RemoveFinalizer(hardware, tinkv1alpha1.HardwareFinalizer) | ||
|
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| return ctrl.Result{}, err | ||
| } |
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