
Selectors in ObjectMetricSource's weren't being persisted through roundtrip conversions, and this wasn't caught because we had no fuzzer testing MetricIdentifier selectors
131 lines
3.8 KiB
Go
131 lines
3.8 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package fuzzer
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import (
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fuzz "github.com/google/gofuzz"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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runtimeserializer "k8s.io/apimachinery/pkg/runtime/serializer"
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"k8s.io/kubernetes/pkg/apis/autoscaling"
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api "k8s.io/kubernetes/pkg/apis/core"
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)
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// Funcs returns the fuzzer functions for the autoscaling api group.
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var Funcs = func(codecs runtimeserializer.CodecFactory) []interface{} {
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return []interface{}{
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func(s *autoscaling.ScaleStatus, c fuzz.Continue) {
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c.FuzzNoCustom(s) // fuzz self without calling this function again
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// ensure we have a valid selector
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metaSelector := &metav1.LabelSelector{}
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c.Fuzz(metaSelector)
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labelSelector, _ := metav1.LabelSelectorAsSelector(metaSelector)
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s.Selector = labelSelector.String()
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},
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func(s *autoscaling.HorizontalPodAutoscalerSpec, c fuzz.Continue) {
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c.FuzzNoCustom(s) // fuzz self without calling this function again
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minReplicas := int32(c.Rand.Int31())
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s.MinReplicas = &minReplicas
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randomQuantity := func() resource.Quantity {
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var q resource.Quantity
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c.Fuzz(&q)
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// precalc the string for benchmarking purposes
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_ = q.String()
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return q
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}
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var podMetricID autoscaling.MetricIdentifier
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var objMetricID autoscaling.MetricIdentifier
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c.Fuzz(&podMetricID)
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c.Fuzz(&objMetricID)
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targetUtilization := int32(c.RandUint64())
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averageValue := randomQuantity()
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s.Metrics = []autoscaling.MetricSpec{
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{
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Type: autoscaling.PodsMetricSourceType,
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Pods: &autoscaling.PodsMetricSource{
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Metric: podMetricID,
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Target: autoscaling.MetricTarget{
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Type: autoscaling.AverageValueMetricType,
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AverageValue: &averageValue,
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},
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},
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},
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{
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Type: autoscaling.ObjectMetricSourceType,
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Object: &autoscaling.ObjectMetricSource{
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Metric: objMetricID,
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Target: autoscaling.MetricTarget{
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Type: autoscaling.ValueMetricType,
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Value: &averageValue,
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},
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},
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},
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{
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Type: autoscaling.ResourceMetricSourceType,
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Resource: &autoscaling.ResourceMetricSource{
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Name: api.ResourceCPU,
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Target: autoscaling.MetricTarget{
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Type: autoscaling.UtilizationMetricType,
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AverageUtilization: &targetUtilization,
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},
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},
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},
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}
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},
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func(s *autoscaling.HorizontalPodAutoscalerStatus, c fuzz.Continue) {
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c.FuzzNoCustom(s) // fuzz self without calling this function again
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randomQuantity := func() resource.Quantity {
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var q resource.Quantity
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c.Fuzz(&q)
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// precalc the string for benchmarking purposes
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_ = q.String()
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return q
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}
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averageValue := randomQuantity()
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currentUtilization := int32(c.RandUint64())
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s.CurrentMetrics = []autoscaling.MetricStatus{
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{
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Type: autoscaling.PodsMetricSourceType,
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Pods: &autoscaling.PodsMetricStatus{
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Metric: autoscaling.MetricIdentifier{
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Name: c.RandString(),
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},
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Current: autoscaling.MetricValueStatus{
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AverageValue: &averageValue,
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},
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},
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},
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{
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Type: autoscaling.ResourceMetricSourceType,
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Resource: &autoscaling.ResourceMetricStatus{
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Name: api.ResourceCPU,
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Current: autoscaling.MetricValueStatus{
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AverageUtilization: ¤tUtilization,
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AverageValue: &averageValue,
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},
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},
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},
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}
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},
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}
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}
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