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Merge pull request #3161 from chrischdi/pr-vspheremachintetpl-autoscaler
✨ supervisor: implement support for autoscale to/from zero
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121 changes: 121 additions & 0 deletions
121
controllers/vmware/vspheremachinetemplate_controller.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| /* | ||
| Copyright 2024 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 vmware | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
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| "github.com/pkg/errors" | ||
| vmoprv1 "github.com/vmware-tanzu/vm-operator/api/v1alpha2" | ||
| corev1 "k8s.io/api/core/v1" | ||
| apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
| "k8s.io/apimachinery/pkg/api/resource" | ||
| "sigs.k8s.io/cluster-api/util/patch" | ||
| "sigs.k8s.io/cluster-api/util/predicates" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller" | ||
| "sigs.k8s.io/controller-runtime/pkg/handler" | ||
| "sigs.k8s.io/controller-runtime/pkg/manager" | ||
| "sigs.k8s.io/controller-runtime/pkg/reconcile" | ||
|
|
||
| vmwarev1 "sigs.k8s.io/cluster-api-provider-vsphere/apis/vmware/v1beta1" | ||
| capvcontext "sigs.k8s.io/cluster-api-provider-vsphere/pkg/context" | ||
| ) | ||
|
|
||
| // +kubebuilder:rbac:groups=vmware.infrastructure.cluster.x-k8s.io,resources=vspheremachinetemplates,verbs=get;list;watch;create;update;patch;delete | ||
| // +kubebuilder:rbac:groups=vmware.infrastructure.cluster.x-k8s.io,resources=vspheremachinetemplates/status,verbs=get;update;patch | ||
| // +kubebuilder:rbac:groups=vmoperator.vmware.com,resources=virtualmachineclasses,verbs=get;list;watch | ||
|
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| // AddVSphereMachineTemplateControllerToManager adds the machine template controller to the provided | ||
| // manager. | ||
| func AddVSphereMachineTemplateControllerToManager(ctx context.Context, controllerManagerContext *capvcontext.ControllerManagerContext, mgr manager.Manager, options controller.Options) error { | ||
| r := &vSphereMachineTemplateReconciler{ | ||
| Client: controllerManagerContext.Client, | ||
| } | ||
|
|
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| return ctrl.NewControllerManagedBy(mgr). | ||
| For(&vmwarev1.VSphereMachineTemplate{}). | ||
| WithOptions(options). | ||
| Watches( | ||
| &vmoprv1.VirtualMachineClass{}, | ||
| handler.EnqueueRequestsFromMapFunc(r.enqueueVirtualMachineClassToVSphereMachineTemplateRequests), | ||
| ). | ||
| WithEventFilter(predicates.ResourceNotPausedAndHasFilterLabel(ctrl.LoggerFrom(ctx), controllerManagerContext.WatchFilterValue)). | ||
| Complete(r) | ||
| } | ||
|
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| type vSphereMachineTemplateReconciler struct { | ||
| Client client.Client | ||
| } | ||
|
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| func (r *vSphereMachineTemplateReconciler) Reconcile(ctx context.Context, req ctrl.Request) (_ ctrl.Result, reterr error) { | ||
| // Fetch VSphereMachineTemplate object | ||
| vSphereMachineTemplate := &vmwarev1.VSphereMachineTemplate{} | ||
| if err := r.Client.Get(ctx, req.NamespacedName, vSphereMachineTemplate); err != nil { | ||
| if apierrors.IsNotFound(err) { | ||
| return reconcile.Result{}, nil | ||
| } | ||
| return reconcile.Result{}, err | ||
| } | ||
|
|
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| // Fetch the VirtualMachineClass | ||
| vmClass := &vmoprv1.VirtualMachineClass{} | ||
| if err := r.Client.Get(ctx, client.ObjectKey{Namespace: req.Namespace, Name: vSphereMachineTemplate.Spec.Template.Spec.ClassName}, vmClass); err != nil { | ||
| return reconcile.Result{}, errors.Wrapf(err, "failed to get VirtualMachineClass %q for VSphereMachineTemplate", vSphereMachineTemplate.Spec.Template.Spec.ClassName) | ||
| } | ||
|
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| patchHelper, err := patch.NewHelper(vSphereMachineTemplate, r.Client) | ||
| if err != nil { | ||
| return reconcile.Result{}, err | ||
| } | ||
|
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| if vSphereMachineTemplate.Status.Capacity == nil { | ||
| vSphereMachineTemplate.Status.Capacity = corev1.ResourceList{} | ||
| } | ||
| if vmClass.Spec.Hardware.Cpus > 0 { | ||
| vSphereMachineTemplate.Status.Capacity[vmwarev1.VSphereResourceCPU] = *resource.NewQuantity(vmClass.Spec.Hardware.Cpus, resource.DecimalSI) | ||
| } | ||
| if !vmClass.Spec.Hardware.Memory.IsZero() { | ||
| vSphereMachineTemplate.Status.Capacity[vmwarev1.VSphereResourceMemory] = vmClass.Spec.Hardware.Memory | ||
| } | ||
|
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| return reconcile.Result{}, patchHelper.Patch(ctx, vSphereMachineTemplate) | ||
| } | ||
|
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| // enqueueVirtualMachineClassToVSphereMachineTemplateRequests returns a list of VSphereMachineTemplate reconcile requests | ||
| // that use a specific VirtualMachineClass. | ||
| func (r *vSphereMachineTemplateReconciler) enqueueVirtualMachineClassToVSphereMachineTemplateRequests(ctx context.Context, virtualMachineClass client.Object) []reconcile.Request { | ||
| requests := []reconcile.Request{} | ||
|
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| vSphereMachineTemplates := &vmwarev1.VSphereMachineTemplateList{} | ||
| if err := r.Client.List(ctx, vSphereMachineTemplates, client.InNamespace(virtualMachineClass.GetNamespace())); err != nil { | ||
| return nil | ||
| } | ||
|
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| for _, vSphereMachineTemplate := range vSphereMachineTemplates.Items { | ||
| if vSphereMachineTemplate.Spec.Template.Spec.ClassName != virtualMachineClass.GetName() { | ||
| continue | ||
| } | ||
|
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| requests = append(requests, reconcile.Request{ | ||
| NamespacedName: client.ObjectKey{Namespace: vSphereMachineTemplate.Namespace, Name: vSphereMachineTemplate.Name}, | ||
| }) | ||
| } | ||
|
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| return requests | ||
| } |
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