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add support to hpa behaviors on canaries #740

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merged 2 commits into from
Dec 7, 2020
Merged

add support to hpa behaviors on canaries #740

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83dae63
add support to hpa behaviors on canaries
tr-fteixeira Dec 6, 2020
afc063a
update tests to use autoscaling/v2beta2
tr-fteixeira Dec 6, 2020
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25 changes: 14 additions & 11 deletions pkg/canary/deployment_controller.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ import (
"github.com/google/go-cmp/cmp"
"go.uber.org/zap"
appsv1 "k8s.io/api/apps/v1"
hpav1 "k8s.io/api/autoscaling/v2beta1"
hpav2 "k8s.io/api/autoscaling/v2beta2"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
Expand Down Expand Up @@ -292,29 +292,30 @@ func (c *DeploymentController) createPrimaryDeployment(cd *flaggerv1.Canary, inc

func (c *DeploymentController) reconcilePrimaryHpa(cd *flaggerv1.Canary, init bool) error {
primaryName := fmt.Sprintf("%s-primary", cd.Spec.TargetRef.Name)
hpa, err := c.kubeClient.AutoscalingV2beta1().HorizontalPodAutoscalers(cd.Namespace).Get(context.TODO(), cd.Spec.AutoscalerRef.Name, metav1.GetOptions{})
hpa, err := c.kubeClient.AutoscalingV2beta2().HorizontalPodAutoscalers(cd.Namespace).Get(context.TODO(), cd.Spec.AutoscalerRef.Name, metav1.GetOptions{})
if err != nil {
return fmt.Errorf("HorizontalPodAutoscaler %s.%s get query error: %w",
cd.Spec.AutoscalerRef.Name, cd.Namespace, err)
}

hpaSpec := hpav1.HorizontalPodAutoscalerSpec{
ScaleTargetRef: hpav1.CrossVersionObjectReference{
hpaSpec := hpav2.HorizontalPodAutoscalerSpec{
ScaleTargetRef: hpav2.CrossVersionObjectReference{
Name: primaryName,
Kind: hpa.Spec.ScaleTargetRef.Kind,
APIVersion: hpa.Spec.ScaleTargetRef.APIVersion,
},
MinReplicas: hpa.Spec.MinReplicas,
MaxReplicas: hpa.Spec.MaxReplicas,
Metrics: hpa.Spec.Metrics,
Behavior: hpa.Spec.Behavior,
}

primaryHpaName := fmt.Sprintf("%s-primary", cd.Spec.AutoscalerRef.Name)
primaryHpa, err := c.kubeClient.AutoscalingV2beta1().HorizontalPodAutoscalers(cd.Namespace).Get(context.TODO(), primaryHpaName, metav1.GetOptions{})
primaryHpa, err := c.kubeClient.AutoscalingV2beta2().HorizontalPodAutoscalers(cd.Namespace).Get(context.TODO(), primaryHpaName, metav1.GetOptions{})

// create HPA
if errors.IsNotFound(err) {
primaryHpa = &hpav1.HorizontalPodAutoscaler{
primaryHpa = &hpav2.HorizontalPodAutoscaler{
ObjectMeta: metav1.ObjectMeta{
Name: primaryHpaName,
Namespace: cd.Namespace,
Expand All @@ -330,7 +331,7 @@ func (c *DeploymentController) reconcilePrimaryHpa(cd *flaggerv1.Canary, init bo
Spec: hpaSpec,
}

_, err = c.kubeClient.AutoscalingV2beta1().HorizontalPodAutoscalers(cd.Namespace).Create(context.TODO(), primaryHpa, metav1.CreateOptions{})
_, err = c.kubeClient.AutoscalingV2beta2().HorizontalPodAutoscalers(cd.Namespace).Create(context.TODO(), primaryHpa, metav1.CreateOptions{})
if err != nil {
return fmt.Errorf("creating HorizontalPodAutoscaler %s.%s failed: %w",
primaryHpa.Name, primaryHpa.Namespace, err)
Expand All @@ -345,15 +346,17 @@ func (c *DeploymentController) reconcilePrimaryHpa(cd *flaggerv1.Canary, init bo

// update HPA
if !init && primaryHpa != nil {
diff := cmp.Diff(hpaSpec.Metrics, primaryHpa.Spec.Metrics)
if diff != "" || int32Default(hpaSpec.MinReplicas) != int32Default(primaryHpa.Spec.MinReplicas) || hpaSpec.MaxReplicas != primaryHpa.Spec.MaxReplicas {
fmt.Println(diff, hpaSpec.MinReplicas, primaryHpa.Spec.MinReplicas, hpaSpec.MaxReplicas, primaryHpa.Spec.MaxReplicas)
diffMetrics := cmp.Diff(hpaSpec.Metrics, primaryHpa.Spec.Metrics)
diffBehavior := cmp.Diff(hpaSpec.Behavior, primaryHpa.Spec.Behavior)
if diffMetrics != "" || diffBehavior != "" || int32Default(hpaSpec.MinReplicas) != int32Default(primaryHpa.Spec.MinReplicas) || hpaSpec.MaxReplicas != primaryHpa.Spec.MaxReplicas {
fmt.Println(diffMetrics, diffBehavior, hpaSpec.MinReplicas, primaryHpa.Spec.MinReplicas, hpaSpec.MaxReplicas, primaryHpa.Spec.MaxReplicas)
hpaClone := primaryHpa.DeepCopy()
hpaClone.Spec.MaxReplicas = hpaSpec.MaxReplicas
hpaClone.Spec.MinReplicas = hpaSpec.MinReplicas
hpaClone.Spec.Metrics = hpaSpec.Metrics
hpaClone.Spec.Behavior = hpaSpec.Behavior

_, err := c.kubeClient.AutoscalingV2beta1().HorizontalPodAutoscalers(cd.Namespace).Update(context.TODO(), hpaClone, metav1.UpdateOptions{})
_, err := c.kubeClient.AutoscalingV2beta2().HorizontalPodAutoscalers(cd.Namespace).Update(context.TODO(), hpaClone, metav1.UpdateOptions{})
if err != nil {
return fmt.Errorf("updating HorizontalPodAutoscaler %s.%s failed: %w",
hpaClone.Name, hpaClone.Namespace, err)
Expand Down