/* Copyright 2016 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 v1 import ( "encoding/json" autoscalingv1 "k8s.io/api/autoscaling/v1" v1 "k8s.io/api/core/v1" "k8s.io/apimachinery/pkg/conversion" "k8s.io/kubernetes/pkg/apis/autoscaling" "k8s.io/kubernetes/pkg/apis/core" ) func Convert_autoscaling_MetricTarget_To_v1_CrossVersionObjectReference(in *autoscaling.MetricTarget, out *autoscalingv1.CrossVersionObjectReference, s conversion.Scope) error { return nil } func Convert_v1_CrossVersionObjectReference_To_autoscaling_MetricTarget(in *autoscalingv1.CrossVersionObjectReference, out *autoscaling.MetricTarget, s conversion.Scope) error { return nil } func Convert_autoscaling_ExternalMetricSource_To_v1_ExternalMetricSource(in *autoscaling.ExternalMetricSource, out *autoscalingv1.ExternalMetricSource, s conversion.Scope) error { out.MetricName = in.Metric.Name out.TargetValue = in.Target.Value out.TargetAverageValue = in.Target.AverageValue out.MetricSelector = in.Metric.Selector return nil } func Convert_v1_ExternalMetricSource_To_autoscaling_ExternalMetricSource(in *autoscalingv1.ExternalMetricSource, out *autoscaling.ExternalMetricSource, s conversion.Scope) error { value := in.TargetValue averageValue := in.TargetAverageValue var metricType autoscaling.MetricTargetType if value == nil { metricType = autoscaling.AverageValueMetricType } else { metricType = autoscaling.ValueMetricType } out.Target = autoscaling.MetricTarget{ Type: metricType, Value: value, AverageValue: averageValue, } out.Metric = autoscaling.MetricIdentifier{ Name: in.MetricName, Selector: in.MetricSelector, } return nil } func Convert_autoscaling_ObjectMetricSource_To_v1_ObjectMetricSource(in *autoscaling.ObjectMetricSource, out *autoscalingv1.ObjectMetricSource, s conversion.Scope) error { if in.Target.Value != nil { out.TargetValue = *in.Target.Value } out.AverageValue = in.Target.AverageValue out.Target = autoscalingv1.CrossVersionObjectReference{ Kind: in.DescribedObject.Kind, Name: in.DescribedObject.Name, APIVersion: in.DescribedObject.APIVersion, } out.MetricName = in.Metric.Name out.Selector = in.Metric.Selector return nil } func Convert_v1_ObjectMetricSource_To_autoscaling_ObjectMetricSource(in *autoscalingv1.ObjectMetricSource, out *autoscaling.ObjectMetricSource, s conversion.Scope) error { var metricType autoscaling.MetricTargetType if in.AverageValue == nil { metricType = autoscaling.ValueMetricType } else { metricType = autoscaling.AverageValueMetricType } out.Target = autoscaling.MetricTarget{ Type: metricType, Value: &in.TargetValue, AverageValue: in.AverageValue, } out.DescribedObject = autoscaling.CrossVersionObjectReference{ Kind: in.Target.Kind, Name: in.Target.Name, APIVersion: in.Target.APIVersion, } out.Metric = autoscaling.MetricIdentifier{ Name: in.MetricName, Selector: in.Selector, } return nil } func Convert_autoscaling_PodsMetricSource_To_v1_PodsMetricSource(in *autoscaling.PodsMetricSource, out *autoscalingv1.PodsMetricSource, s conversion.Scope) error { if in.Target.AverageValue != nil { out.TargetAverageValue = *in.Target.AverageValue } out.MetricName = in.Metric.Name out.Selector = in.Metric.Selector return nil } func Convert_v1_PodsMetricSource_To_autoscaling_PodsMetricSource(in *autoscalingv1.PodsMetricSource, out *autoscaling.PodsMetricSource, s conversion.Scope) error { metricType := autoscaling.AverageValueMetricType out.Target = autoscaling.MetricTarget{ Type: metricType, AverageValue: &in.TargetAverageValue, } out.Metric = autoscaling.MetricIdentifier{ Name: in.MetricName, Selector: in.Selector, } return nil } func Convert_autoscaling_ExternalMetricStatus_To_v1_ExternalMetricStatus(in *autoscaling.ExternalMetricStatus, out *autoscalingv1.ExternalMetricStatus, s conversion.Scope) error { out.MetricName = in.Metric.Name if in.Current.Value != nil { out.CurrentValue = *in.Current.Value } if in.Current.AverageValue != nil { out.CurrentAverageValue = in.Current.AverageValue } out.MetricSelector = in.Metric.Selector return nil } func Convert_v1_ExternalMetricStatus_To_autoscaling_ExternalMetricStatus(in *autoscalingv1.ExternalMetricStatus, out *autoscaling.ExternalMetricStatus, s conversion.Scope) error { value := in.CurrentValue averageValue := in.CurrentAverageValue out.Current = autoscaling.MetricValueStatus{ Value: &value, AverageValue: averageValue, } out.Metric = autoscaling.MetricIdentifier{ Name: in.MetricName, Selector: in.MetricSelector, } return nil } func Convert_autoscaling_ObjectMetricStatus_To_v1_ObjectMetricStatus(in *autoscaling.ObjectMetricStatus, out *autoscalingv1.ObjectMetricStatus, s conversion.Scope) error { if in.Current.Value != nil { out.CurrentValue = *in.Current.Value } if in.Current.AverageValue != nil { currentAverageValue := *in.Current.AverageValue out.AverageValue = ¤tAverageValue } out.Target = autoscalingv1.CrossVersionObjectReference{ Kind: in.DescribedObject.Kind, Name: in.DescribedObject.Name, APIVersion: in.DescribedObject.APIVersion, } out.MetricName = in.Metric.Name out.Selector = in.Metric.Selector return nil } func Convert_v1_ObjectMetricStatus_To_autoscaling_ObjectMetricStatus(in *autoscalingv1.ObjectMetricStatus, out *autoscaling.ObjectMetricStatus, s conversion.Scope) error { out.Current = autoscaling.MetricValueStatus{ Value: &in.CurrentValue, AverageValue: in.AverageValue, } out.DescribedObject = autoscaling.CrossVersionObjectReference{ Kind: in.Target.Kind, Name: in.Target.Name, APIVersion: in.Target.APIVersion, } out.Metric = autoscaling.MetricIdentifier{ Name: in.MetricName, Selector: in.Selector, } return nil } func Convert_autoscaling_PodsMetricStatus_To_v1_PodsMetricStatus(in *autoscaling.PodsMetricStatus, out *autoscalingv1.PodsMetricStatus, s conversion.Scope) error { if in.Current.AverageValue != nil { out.CurrentAverageValue = *in.Current.AverageValue } out.MetricName = in.Metric.Name out.Selector = in.Metric.Selector return nil } func Convert_v1_PodsMetricStatus_To_autoscaling_PodsMetricStatus(in *autoscalingv1.PodsMetricStatus, out *autoscaling.PodsMetricStatus, s conversion.Scope) error { out.Current = autoscaling.MetricValueStatus{ AverageValue: &in.CurrentAverageValue, } out.Metric = autoscaling.MetricIdentifier{ Name: in.MetricName, Selector: in.Selector, } return nil } func Convert_v1_ResourceMetricSource_To_autoscaling_ResourceMetricSource(in *autoscalingv1.ResourceMetricSource, out *autoscaling.ResourceMetricSource, s conversion.Scope) error { out.Name = core.ResourceName(in.Name) utilization := in.TargetAverageUtilization averageValue := in.TargetAverageValue var metricType autoscaling.MetricTargetType if utilization == nil { metricType = autoscaling.AverageValueMetricType } else { metricType = autoscaling.UtilizationMetricType } out.Target = autoscaling.MetricTarget{ Type: metricType, AverageValue: averageValue, AverageUtilization: utilization, } return nil } func Convert_autoscaling_ResourceMetricSource_To_v1_ResourceMetricSource(in *autoscaling.ResourceMetricSource, out *autoscalingv1.ResourceMetricSource, s conversion.Scope) error { out.Name = v1.ResourceName(in.Name) out.TargetAverageUtilization = in.Target.AverageUtilization out.TargetAverageValue = in.Target.AverageValue return nil } func Convert_v1_ContainerResourceMetricStatus_To_autoscaling_ContainerResourceMetricStatus(in *autoscalingv1.ContainerResourceMetricStatus, out *autoscaling.ContainerResourceMetricStatus, s conversion.Scope) error { out.Name = core.ResourceName(in.Name) out.Container = in.Container utilization := in.CurrentAverageUtilization averageValue := &in.CurrentAverageValue out.Current = autoscaling.MetricValueStatus{ AverageValue: averageValue, AverageUtilization: utilization, } return nil } func Convert_autoscaling_ContainerResourceMetricStatus_To_v1_ContainerResourceMetricStatus(in *autoscaling.ContainerResourceMetricStatus, out *autoscalingv1.ContainerResourceMetricStatus, s conversion.Scope) error { out.Name = v1.ResourceName(in.Name) out.Container = in.Container out.CurrentAverageUtilization = in.Current.AverageUtilization if in.Current.AverageValue != nil { out.CurrentAverageValue = *in.Current.AverageValue } return nil } func Convert_v1_ResourceMetricStatus_To_autoscaling_ResourceMetricStatus(in *autoscalingv1.ResourceMetricStatus, out *autoscaling.ResourceMetricStatus, s conversion.Scope) error { out.Name = core.ResourceName(in.Name) utilization := in.CurrentAverageUtilization averageValue := &in.CurrentAverageValue out.Current = autoscaling.MetricValueStatus{ AverageValue: averageValue, AverageUtilization: utilization, } return nil } func Convert_autoscaling_ResourceMetricStatus_To_v1_ResourceMetricStatus(in *autoscaling.ResourceMetricStatus, out *autoscalingv1.ResourceMetricStatus, s conversion.Scope) error { out.Name = v1.ResourceName(in.Name) out.CurrentAverageUtilization = in.Current.AverageUtilization if in.Current.AverageValue != nil { out.CurrentAverageValue = *in.Current.AverageValue } return nil } func Convert_autoscaling_HorizontalPodAutoscaler_To_v1_HorizontalPodAutoscaler(in *autoscaling.HorizontalPodAutoscaler, out *autoscalingv1.HorizontalPodAutoscaler, s conversion.Scope) error { if err := autoConvert_autoscaling_HorizontalPodAutoscaler_To_v1_HorizontalPodAutoscaler(in, out, s); err != nil { return err } // clear any pre-existing round-trip annotations to make sure the only ones set are ones we produced during conversion annotations, copiedAnnotations := autoscaling.DropRoundTripHorizontalPodAutoscalerAnnotations(out.Annotations) out.Annotations = annotations otherMetrics := make([]autoscalingv1.MetricSpec, 0, len(in.Spec.Metrics)) for _, metric := range in.Spec.Metrics { if metric.Type == autoscaling.ResourceMetricSourceType && metric.Resource != nil && metric.Resource.Name == core.ResourceCPU && metric.Resource.Target.AverageUtilization != nil { continue } convMetric := autoscalingv1.MetricSpec{} if err := Convert_autoscaling_MetricSpec_To_v1_MetricSpec(&metric, &convMetric, s); err != nil { return err } otherMetrics = append(otherMetrics, convMetric) } // NB: we need to save the status even if it maps to a CPU utilization status in order to save the raw value as well currentMetrics := make([]autoscalingv1.MetricStatus, len(in.Status.CurrentMetrics)) for i, currentMetric := range in.Status.CurrentMetrics { if err := Convert_autoscaling_MetricStatus_To_v1_MetricStatus(¤tMetric, ¤tMetrics[i], s); err != nil { return err } } // store HPA conditions in an annotation currentConditions := make([]autoscalingv1.HorizontalPodAutoscalerCondition, len(in.Status.Conditions)) for i, currentCondition := range in.Status.Conditions { if err := Convert_autoscaling_HorizontalPodAutoscalerCondition_To_v1_HorizontalPodAutoscalerCondition(¤tCondition, ¤tConditions[i], s); err != nil { return err } } if len(otherMetrics) > 0 { otherMetricsEnc, err := json.Marshal(otherMetrics) if err != nil { return err } // copy before mutating if !copiedAnnotations { copiedAnnotations = true out.Annotations = autoscaling.DeepCopyStringMap(out.Annotations) } out.Annotations[autoscaling.MetricSpecsAnnotation] = string(otherMetricsEnc) } if len(in.Status.CurrentMetrics) > 0 { currentMetricsEnc, err := json.Marshal(currentMetrics) if err != nil { return err } // copy before mutating if !copiedAnnotations { copiedAnnotations = true out.Annotations = autoscaling.DeepCopyStringMap(out.Annotations) } out.Annotations[autoscaling.MetricStatusesAnnotation] = string(currentMetricsEnc) } if in.Spec.Behavior != nil { // TODO: this is marshaling an internal type. Fix this without breaking backwards compatibility. behaviorEnc, err := json.Marshal(in.Spec.Behavior) if err != nil { return err } // copy before mutating if !copiedAnnotations { copiedAnnotations = true out.Annotations = autoscaling.DeepCopyStringMap(out.Annotations) } out.Annotations[autoscaling.BehaviorSpecsAnnotation] = string(behaviorEnc) } if len(in.Status.Conditions) > 0 { currentConditionsEnc, err := json.Marshal(currentConditions) if err != nil { return err } // copy before mutating if !copiedAnnotations { //nolint:ineffassign copiedAnnotations = true out.Annotations = autoscaling.DeepCopyStringMap(out.Annotations) } out.Annotations[autoscaling.HorizontalPodAutoscalerConditionsAnnotation] = string(currentConditionsEnc) } return nil } func Convert_v1_HorizontalPodAutoscaler_To_autoscaling_HorizontalPodAutoscaler(in *autoscalingv1.HorizontalPodAutoscaler, out *autoscaling.HorizontalPodAutoscaler, s conversion.Scope) error { if err := autoConvert_v1_HorizontalPodAutoscaler_To_autoscaling_HorizontalPodAutoscaler(in, out, s); err != nil { return err } if otherMetricsEnc, hasOtherMetrics := out.Annotations[autoscaling.MetricSpecsAnnotation]; hasOtherMetrics { var otherMetrics []autoscalingv1.MetricSpec if err := json.Unmarshal([]byte(otherMetricsEnc), &otherMetrics); err == nil { // the normal Spec conversion could have populated out.Spec.Metrics with a single element, so deal with that outMetrics := make([]autoscaling.MetricSpec, len(otherMetrics)+len(out.Spec.Metrics)) for i, metric := range otherMetrics { if err := Convert_v1_MetricSpec_To_autoscaling_MetricSpec(&metric, &outMetrics[i], s); err != nil { return err } } if out.Spec.Metrics != nil { outMetrics[len(otherMetrics)] = out.Spec.Metrics[0] } out.Spec.Metrics = outMetrics } } if behaviorEnc, hasConstraints := out.Annotations[autoscaling.BehaviorSpecsAnnotation]; hasConstraints { // TODO: this is unmarshaling an internal type. Fix this without breaking backwards compatibility. var behavior autoscaling.HorizontalPodAutoscalerBehavior if err := json.Unmarshal([]byte(behaviorEnc), &behavior); err == nil && behavior != (autoscaling.HorizontalPodAutoscalerBehavior{}) { out.Spec.Behavior = &behavior } } if currentMetricsEnc, hasCurrentMetrics := out.Annotations[autoscaling.MetricStatusesAnnotation]; hasCurrentMetrics { // ignore any existing status values -- the ones here have more information var currentMetrics []autoscalingv1.MetricStatus if err := json.Unmarshal([]byte(currentMetricsEnc), ¤tMetrics); err == nil { out.Status.CurrentMetrics = make([]autoscaling.MetricStatus, len(currentMetrics)) for i, currentMetric := range currentMetrics { if err := Convert_v1_MetricStatus_To_autoscaling_MetricStatus(¤tMetric, &out.Status.CurrentMetrics[i], s); err != nil { return err } } } } // autoscaling/v1 formerly had an implicit default applied in the controller. In v2beta1, we apply it explicitly. // We apply it here, explicitly, since we have access to the full set of metrics from the annotation. if len(out.Spec.Metrics) == 0 { // no other metrics, no explicit CPU value set out.Spec.Metrics = []autoscaling.MetricSpec{ { Type: autoscaling.ResourceMetricSourceType, Resource: &autoscaling.ResourceMetricSource{ Name: core.ResourceCPU, Target: autoscaling.MetricTarget{ Type: autoscaling.UtilizationMetricType, }, }, }, } out.Spec.Metrics[0].Resource.Target.AverageUtilization = new(int32) *out.Spec.Metrics[0].Resource.Target.AverageUtilization = autoscaling.DefaultCPUUtilization } if currentConditionsEnc, hasCurrentConditions := out.Annotations[autoscaling.HorizontalPodAutoscalerConditionsAnnotation]; hasCurrentConditions { var currentConditions []autoscalingv1.HorizontalPodAutoscalerCondition if err := json.Unmarshal([]byte(currentConditionsEnc), ¤tConditions); err == nil { out.Status.Conditions = make([]autoscaling.HorizontalPodAutoscalerCondition, len(currentConditions)) for i, currentCondition := range currentConditions { if err := Convert_v1_HorizontalPodAutoscalerCondition_To_autoscaling_HorizontalPodAutoscalerCondition(¤tCondition, &out.Status.Conditions[i], s); err != nil { return err } } } } // drop round-tripping annotations after converting to internal out.Annotations, _ = autoscaling.DropRoundTripHorizontalPodAutoscalerAnnotations(out.Annotations) return nil } func Convert_autoscaling_HorizontalPodAutoscalerSpec_To_v1_HorizontalPodAutoscalerSpec(in *autoscaling.HorizontalPodAutoscalerSpec, out *autoscalingv1.HorizontalPodAutoscalerSpec, s conversion.Scope) error { if err := Convert_autoscaling_CrossVersionObjectReference_To_v1_CrossVersionObjectReference(&in.ScaleTargetRef, &out.ScaleTargetRef, s); err != nil { return err } out.MinReplicas = in.MinReplicas out.MaxReplicas = in.MaxReplicas for _, metric := range in.Metrics { if metric.Type == autoscaling.ResourceMetricSourceType && metric.Resource != nil && metric.Resource.Name == core.ResourceCPU { if metric.Resource.Target.AverageUtilization != nil { out.TargetCPUUtilizationPercentage = new(int32) *out.TargetCPUUtilizationPercentage = *metric.Resource.Target.AverageUtilization } break } } return nil } func Convert_v1_HorizontalPodAutoscalerSpec_To_autoscaling_HorizontalPodAutoscalerSpec(in *autoscalingv1.HorizontalPodAutoscalerSpec, out *autoscaling.HorizontalPodAutoscalerSpec, s conversion.Scope) error { if err := Convert_v1_CrossVersionObjectReference_To_autoscaling_CrossVersionObjectReference(&in.ScaleTargetRef, &out.ScaleTargetRef, s); err != nil { return err } out.MinReplicas = in.MinReplicas out.MaxReplicas = in.MaxReplicas if in.TargetCPUUtilizationPercentage != nil { out.Metrics = []autoscaling.MetricSpec{ { Type: autoscaling.ResourceMetricSourceType, Resource: &autoscaling.ResourceMetricSource{ Name: core.ResourceCPU, Target: autoscaling.MetricTarget{ Type: autoscaling.UtilizationMetricType, }, }, }, } out.Metrics[0].Resource.Target.AverageUtilization = new(int32) *out.Metrics[0].Resource.Target.AverageUtilization = *in.TargetCPUUtilizationPercentage } return nil } func Convert_autoscaling_HorizontalPodAutoscalerStatus_To_v1_HorizontalPodAutoscalerStatus(in *autoscaling.HorizontalPodAutoscalerStatus, out *autoscalingv1.HorizontalPodAutoscalerStatus, s conversion.Scope) error { out.ObservedGeneration = in.ObservedGeneration out.LastScaleTime = in.LastScaleTime out.CurrentReplicas = in.CurrentReplicas out.DesiredReplicas = in.DesiredReplicas for _, metric := range in.CurrentMetrics { if metric.Type == autoscaling.ResourceMetricSourceType && metric.Resource != nil && metric.Resource.Name == core.ResourceCPU { if metric.Resource.Current.AverageUtilization != nil { out.CurrentCPUUtilizationPercentage = new(int32) *out.CurrentCPUUtilizationPercentage = *metric.Resource.Current.AverageUtilization } } } return nil } func Convert_v1_HorizontalPodAutoscalerStatus_To_autoscaling_HorizontalPodAutoscalerStatus(in *autoscalingv1.HorizontalPodAutoscalerStatus, out *autoscaling.HorizontalPodAutoscalerStatus, s conversion.Scope) error { out.ObservedGeneration = in.ObservedGeneration out.LastScaleTime = in.LastScaleTime out.CurrentReplicas = in.CurrentReplicas out.DesiredReplicas = in.DesiredReplicas if in.CurrentCPUUtilizationPercentage != nil { out.CurrentMetrics = []autoscaling.MetricStatus{ { Type: autoscaling.ResourceMetricSourceType, Resource: &autoscaling.ResourceMetricStatus{ Name: core.ResourceCPU, }, }, } out.CurrentMetrics[0].Resource.Current.AverageUtilization = new(int32) *out.CurrentMetrics[0].Resource.Current.AverageUtilization = *in.CurrentCPUUtilizationPercentage } return nil } func Convert_v1_ContainerResourceMetricSource_To_autoscaling_ContainerResourceMetricSource(in *autoscalingv1.ContainerResourceMetricSource, out *autoscaling.ContainerResourceMetricSource, s conversion.Scope) error { out.Name = core.ResourceName(in.Name) out.Container = in.Container utilization := in.TargetAverageUtilization averageValue := in.TargetAverageValue var metricType autoscaling.MetricTargetType if utilization == nil { metricType = autoscaling.AverageValueMetricType } else { metricType = autoscaling.UtilizationMetricType } out.Target = autoscaling.MetricTarget{ Type: metricType, AverageValue: averageValue, AverageUtilization: utilization, } return nil } func Convert_autoscaling_ContainerResourceMetricSource_To_v1_ContainerResourceMetricSource(in *autoscaling.ContainerResourceMetricSource, out *autoscalingv1.ContainerResourceMetricSource, s conversion.Scope) error { out.Name = v1.ResourceName(in.Name) out.Container = in.Container out.TargetAverageUtilization = in.Target.AverageUtilization out.TargetAverageValue = in.Target.AverageValue return nil }