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chore: add NodeRegistrationHealthy status condition to nodepool
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101 changes: 101 additions & 0 deletions
101
pkg/controllers/nodepool/registrationhealth/controller.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| /* | ||
| Copyright 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 registrationhealth | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/awslabs/operatorpkg/object" | ||
| "github.com/awslabs/operatorpkg/status" | ||
| "github.com/samber/lo" | ||
| "k8s.io/apimachinery/pkg/api/equality" | ||
| "k8s.io/apimachinery/pkg/api/errors" | ||
|
|
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| "sigs.k8s.io/karpenter/pkg/operator/injection" | ||
|
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| controllerruntime "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/builder" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller" | ||
| "sigs.k8s.io/controller-runtime/pkg/manager" | ||
| "sigs.k8s.io/controller-runtime/pkg/reconcile" | ||
|
|
||
| v1 "sigs.k8s.io/karpenter/pkg/apis/v1" | ||
| "sigs.k8s.io/karpenter/pkg/cloudprovider" | ||
| nodepoolutils "sigs.k8s.io/karpenter/pkg/utils/nodepool" | ||
| ) | ||
|
|
||
| // Controller for the resource | ||
| type Controller struct { | ||
| kubeClient client.Client | ||
| cloudProvider cloudprovider.CloudProvider | ||
| } | ||
|
|
||
| // NewController is a constructor | ||
| func NewController(kubeClient client.Client, cloudProvider cloudprovider.CloudProvider) *Controller { | ||
| return &Controller{ | ||
| kubeClient: kubeClient, | ||
| cloudProvider: cloudProvider, | ||
| } | ||
| } | ||
|
|
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| func (c *Controller) Reconcile(ctx context.Context, nodePool *v1.NodePool) (reconcile.Result, error) { | ||
| ctx = injection.WithControllerName(ctx, "nodepool.healthyregistration") | ||
| stored := nodePool.DeepCopy() | ||
|
|
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| nodeClass, ok := lo.Find(c.cloudProvider.GetSupportedNodeClasses(), func(nc status.Object) bool { | ||
| return object.GVK(nc).GroupKind() == nodePool.Spec.Template.Spec.NodeClassRef.GroupKind() | ||
| }) | ||
| if !ok { | ||
| // Ignore NodePools which aren't using a supported NodeClass. | ||
| return reconcile.Result{}, nil | ||
| } | ||
| if err := c.kubeClient.Get(ctx, client.ObjectKey{Name: nodePool.Spec.Template.Spec.NodeClassRef.Name}, nodeClass); err != nil { | ||
| return reconcile.Result{}, client.IgnoreNotFound(err) | ||
| } | ||
|
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| // If NodeClass/NodePool have been updated then NodeRegistrationHealthy = Unknown | ||
| if (nodePool.Status.NodeClassObservedGeneration != nodeClass.GetGeneration()) || | ||
| (nodePool.Generation != nodePool.StatusConditions().Get(v1.ConditionTypeNodeRegistrationHealthy).ObservedGeneration) { | ||
| nodePool.StatusConditions().SetUnknown(v1.ConditionTypeNodeRegistrationHealthy) | ||
| nodePool.Status.NodeClassObservedGeneration = nodeClass.GetGeneration() | ||
| } | ||
|
|
||
| if !equality.Semantic.DeepEqual(stored, nodePool) { | ||
| // We use client.MergeFromWithOptimisticLock because patching a list with a JSON merge patch | ||
| // can cause races due to the fact that it fully replaces the list on a change | ||
| // Here, we are updating the status condition list | ||
| if err := c.kubeClient.Status().Patch(ctx, nodePool, client.MergeFromWithOptions(stored, client.MergeFromWithOptimisticLock{})); client.IgnoreNotFound(err) != nil { | ||
| if errors.IsConflict(err) { | ||
| return reconcile.Result{Requeue: true}, nil | ||
| } | ||
| return reconcile.Result{}, err | ||
| } | ||
| } | ||
| return reconcile.Result{}, nil | ||
| } | ||
|
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||
| func (c *Controller) Register(_ context.Context, m manager.Manager) error { | ||
| b := controllerruntime.NewControllerManagedBy(m). | ||
| Named("nodepool.healthyregistration"). | ||
| For(&v1.NodePool{}, builder.WithPredicates(nodepoolutils.IsManagedPredicateFuncs(c.cloudProvider))). | ||
| WithOptions(controller.Options{MaxConcurrentReconciles: 10}) | ||
| for _, nodeClass := range c.cloudProvider.GetSupportedNodeClasses() { | ||
| b.Watches(nodeClass, nodepoolutils.NodeClassEventHandler(c.kubeClient)) | ||
| } | ||
| return b.Complete(reconcile.AsReconciler(m.GetClient(), c)) | ||
| } |
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