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Scale from and to 0 support for autoscaler for VPC cluster (kubernete…
…s-sigs#1523) * Added support VPC autoscaler * Update controllers/ibmvpcmachinetemplate_controller_test.go Co-authored-by: Prajyot Parab <[email protected]> * Removed duplicate and updated error message --------- Co-authored-by: Prajyot Parab <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| Copyright 2023 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 | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "reflect" | ||
|
|
||
| "github.com/IBM/vpc-go-sdk/vpcv1" | ||
|
|
||
| corev1 "k8s.io/api/core/v1" | ||
| apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
| "k8s.io/apimachinery/pkg/api/resource" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
|
|
||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
|
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| "sigs.k8s.io/cluster-api/util/patch" | ||
|
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| infrav1beta2 "sigs.k8s.io/cluster-api-provider-ibmcloud/api/v1beta2" | ||
| "sigs.k8s.io/cluster-api-provider-ibmcloud/pkg/cloud/services/vpc" | ||
| "sigs.k8s.io/cluster-api-provider-ibmcloud/pkg/endpoints" | ||
| ) | ||
|
|
||
| // IBMVPCMachineTemplateReconciler reconciles a IBMVPCMachineTemplate object. | ||
| type IBMVPCMachineTemplateReconciler struct { | ||
| client.Client | ||
| Scheme *runtime.Scheme | ||
| ServiceEndpoint []endpoints.ServiceEndpoint | ||
| } | ||
|
|
||
| func (r *IBMVPCMachineTemplateReconciler) SetupWithManager(mgr ctrl.Manager) error { | ||
| return ctrl.NewControllerManagedBy(mgr). | ||
| For(&infrav1beta2.IBMVPCMachineTemplate{}). | ||
| Complete(r) | ||
| } | ||
|
|
||
| // +kubebuilder:rbac:groups=infrastructure.cluster.x-k8s.io,resources=ibmvpcmachinetemplates,verbs=get;list;watch | ||
| // +kubebuilder:rbac:groups=infrastructure.cluster.x-k8s.io,resources=ibmvpcmachinetemplates/status,verbs=get;update;patch | ||
|
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| func (r *IBMVPCMachineTemplateReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { | ||
| log := ctrl.LoggerFrom(ctx) | ||
| log.Info("Reconciling IBMVPCMachineTemplate") | ||
|
|
||
| var machineTemplate infrav1beta2.IBMVPCMachineTemplate | ||
| if err := r.Get(ctx, req.NamespacedName, &machineTemplate); err != nil { | ||
| log.Error(err, "Unable to fetch ibmvpcmachinetemplate") | ||
| return ctrl.Result{}, client.IgnoreNotFound(err) | ||
| } | ||
|
|
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| region := endpoints.CostructRegionFromZone(machineTemplate.Spec.Template.Spec.Zone) | ||
|
|
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| // Fetch the service endpoint. | ||
| svcEndpoint := endpoints.FetchVPCEndpoint(region, r.ServiceEndpoint) | ||
|
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| vpcClient, err := vpc.NewService(svcEndpoint) | ||
| if err != nil { | ||
| return ctrl.Result{}, fmt.Errorf("failed to create IBM VPC client: %w", err) | ||
| } | ||
|
|
||
| return r.reconcileNormal(ctx, vpcClient, machineTemplate) | ||
| } | ||
|
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| func (r *IBMVPCMachineTemplateReconciler) reconcileNormal(ctx context.Context, vpcClient vpc.Vpc, machineTemplate infrav1beta2.IBMVPCMachineTemplate) (ctrl.Result, error) { | ||
| log := ctrl.LoggerFrom(ctx) | ||
| helper, err := patch.NewHelper(&machineTemplate, r.Client) | ||
| if err != nil { | ||
| return ctrl.Result{}, fmt.Errorf("failed to init patch helper: %w", err) | ||
| } | ||
|
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||
| options := &vpcv1.GetInstanceProfileOptions{} | ||
| options.SetName(machineTemplate.Spec.Template.Spec.Profile) | ||
| profileDetails, _, err := vpcClient.GetInstanceProfile(options) | ||
| if err != nil { | ||
| return ctrl.Result{}, fmt.Errorf("failed to fetch profile Details: %w", err) | ||
| } | ||
|
|
||
| if profileDetails == nil { | ||
| return ctrl.Result{}, fmt.Errorf("failed to find profileDetails") | ||
| } | ||
|
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| log.V(3).Info("Profile Details:", "profileDetails", profileDetails) | ||
|
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| capacity := make(corev1.ResourceList) | ||
| memory := fmt.Sprintf("%vG", *profileDetails.Memory.(*vpcv1.InstanceProfileMemory).Value) | ||
| cpu := fmt.Sprintf("%v", *profileDetails.VcpuCount.(*vpcv1.InstanceProfileVcpu).Value) | ||
| capacity[corev1.ResourceCPU] = resource.MustParse(cpu) | ||
| capacity[corev1.ResourceMemory] = resource.MustParse(memory) | ||
|
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||
| log.V(3).Info("Calculated capacity for machine template", "capacity", capacity) | ||
| if !reflect.DeepEqual(machineTemplate.Status.Capacity, capacity) { | ||
| machineTemplate.Status.Capacity = capacity | ||
| if err := helper.Patch(ctx, &machineTemplate); err != nil { | ||
| if !apierrors.IsNotFound(err) { | ||
| log.Error(err, "Failed to patch machineTemplate") | ||
| return ctrl.Result{}, err | ||
| } | ||
| } | ||
| } | ||
| log.V(3).Info("Machine template status", "status", machineTemplate.Status) | ||
| return ctrl.Result{}, nil | ||
| } |
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