kubernetes conversion 源码
kubernetes conversion 代码
文件路径:/pkg/apis/autoscaling/v1/conversion.go
/*
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 && 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
}
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