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fuzzer.go
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/*
Copyright 2015 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 testing
import (
"fmt"
"reflect"
"strconv"
"github.com/google/gofuzz"
"k8s.io/apimachinery/pkg/api/resource"
apitesting "k8s.io/apimachinery/pkg/api/testing"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
runtimeserializer "k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/apimachinery/pkg/util/intstr"
kubeadmfuzzer "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/fuzzer"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/testapi"
"k8s.io/kubernetes/pkg/api/v1"
"k8s.io/kubernetes/pkg/apis/admissionregistration"
"k8s.io/kubernetes/pkg/apis/apps"
"k8s.io/kubernetes/pkg/apis/autoscaling"
"k8s.io/kubernetes/pkg/apis/batch"
"k8s.io/kubernetes/pkg/apis/certificates"
"k8s.io/kubernetes/pkg/apis/extensions"
extensionsv1beta1 "k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
"k8s.io/kubernetes/pkg/apis/policy"
"k8s.io/kubernetes/pkg/apis/rbac"
)
// overrideGenericFuncs override some generic fuzzer funcs from k8s.io/apiserver in order to have more realistic
// values in a Kubernetes context.
func overrideGenericFuncs(t apitesting.TestingCommon, codecs runtimeserializer.CodecFactory) []interface{} {
return []interface{}{
func(j *runtime.Object, c fuzz.Continue) {
// TODO: uncomment when round trip starts from a versioned object
if true { //c.RandBool() {
*j = &runtime.Unknown{
// We do not set TypeMeta here because it is not carried through a round trip
Raw: []byte(`{"apiVersion":"unknown.group/unknown","kind":"Something","someKey":"someValue"}`),
ContentType: runtime.ContentTypeJSON,
}
} else {
types := []runtime.Object{&api.Pod{}, &api.ReplicationController{}}
t := types[c.Rand.Intn(len(types))]
c.Fuzz(t)
*j = t
}
},
func(r *runtime.RawExtension, c fuzz.Continue) {
// Pick an arbitrary type and fuzz it
types := []runtime.Object{&api.Pod{}, &extensions.Deployment{}, &api.Service{}}
obj := types[c.Rand.Intn(len(types))]
c.Fuzz(obj)
var codec runtime.Codec
switch obj.(type) {
case *extensions.Deployment:
codec = apitesting.TestCodec(codecs, extensionsv1beta1.SchemeGroupVersion)
default:
codec = apitesting.TestCodec(codecs, v1.SchemeGroupVersion)
}
// Convert the object to raw bytes
bytes, err := runtime.Encode(codec, obj)
if err != nil {
t.Errorf("Failed to encode object: %v", err)
return
}
// Set the bytes field on the RawExtension
r.Raw = bytes
},
}
}
func coreFuncs(t apitesting.TestingCommon) []interface{} {
return []interface{}{
func(q *resource.Quantity, c fuzz.Continue) {
*q = *resource.NewQuantity(c.Int63n(1000), resource.DecimalExponent)
},
func(j *api.ObjectReference, c fuzz.Continue) {
// We have to customize the randomization of TypeMetas because their
// APIVersion and Kind must remain blank in memory.
j.APIVersion = c.RandString()
j.Kind = c.RandString()
j.Namespace = c.RandString()
j.Name = c.RandString()
j.ResourceVersion = strconv.FormatUint(c.RandUint64(), 10)
j.FieldPath = c.RandString()
},
func(j *api.ListOptions, c fuzz.Continue) {
label, _ := labels.Parse("a=b")
j.LabelSelector = label
field, _ := fields.ParseSelector("a=b")
j.FieldSelector = field
},
func(j *api.PodExecOptions, c fuzz.Continue) {
j.Stdout = true
j.Stderr = true
},
func(j *api.PodAttachOptions, c fuzz.Continue) {
j.Stdout = true
j.Stderr = true
},
func(j *api.PodPortForwardOptions, c fuzz.Continue) {
if c.RandBool() {
j.Ports = make([]int32, c.Intn(10))
for i := range j.Ports {
j.Ports[i] = c.Int31n(65535)
}
}
},
func(s *api.PodSpec, c fuzz.Continue) {
c.FuzzNoCustom(s)
// has a default value
ttl := int64(30)
if c.RandBool() {
ttl = int64(c.Uint32())
}
s.TerminationGracePeriodSeconds = &ttl
c.Fuzz(s.SecurityContext)
if s.SecurityContext == nil {
s.SecurityContext = new(api.PodSecurityContext)
}
if s.Affinity == nil {
s.Affinity = new(api.Affinity)
}
if s.SchedulerName == "" {
s.SchedulerName = api.DefaultSchedulerName
}
},
func(j *api.PodPhase, c fuzz.Continue) {
statuses := []api.PodPhase{api.PodPending, api.PodRunning, api.PodFailed, api.PodUnknown}
*j = statuses[c.Rand.Intn(len(statuses))]
},
func(j *api.Binding, c fuzz.Continue) {
c.Fuzz(&j.ObjectMeta)
j.Target.Name = c.RandString()
},
func(j *api.ReplicationControllerSpec, c fuzz.Continue) {
c.FuzzNoCustom(j) // fuzz self without calling this function again
//j.TemplateRef = nil // this is required for round trip
},
func(j *api.List, c fuzz.Continue) {
c.FuzzNoCustom(j) // fuzz self without calling this function again
// TODO: uncomment when round trip starts from a versioned object
if false { //j.Items == nil {
j.Items = []runtime.Object{}
}
},
func(q *api.ResourceRequirements, c fuzz.Continue) {
randomQuantity := func() resource.Quantity {
var q resource.Quantity
c.Fuzz(&q)
// precalc the string for benchmarking purposes
_ = q.String()
return q
}
q.Limits = make(api.ResourceList)
q.Requests = make(api.ResourceList)
cpuLimit := randomQuantity()
q.Limits[api.ResourceCPU] = *cpuLimit.Copy()
q.Requests[api.ResourceCPU] = *cpuLimit.Copy()
memoryLimit := randomQuantity()
q.Limits[api.ResourceMemory] = *memoryLimit.Copy()
q.Requests[api.ResourceMemory] = *memoryLimit.Copy()
storageLimit := randomQuantity()
q.Limits[api.ResourceStorage] = *storageLimit.Copy()
q.Requests[api.ResourceStorage] = *storageLimit.Copy()
},
func(q *api.LimitRangeItem, c fuzz.Continue) {
var cpuLimit resource.Quantity
c.Fuzz(&cpuLimit)
q.Type = api.LimitTypeContainer
q.Default = make(api.ResourceList)
q.Default[api.ResourceCPU] = *(cpuLimit.Copy())
q.DefaultRequest = make(api.ResourceList)
q.DefaultRequest[api.ResourceCPU] = *(cpuLimit.Copy())
q.Max = make(api.ResourceList)
q.Max[api.ResourceCPU] = *(cpuLimit.Copy())
q.Min = make(api.ResourceList)
q.Min[api.ResourceCPU] = *(cpuLimit.Copy())
q.MaxLimitRequestRatio = make(api.ResourceList)
q.MaxLimitRequestRatio[api.ResourceCPU] = resource.MustParse("10")
},
func(p *api.PullPolicy, c fuzz.Continue) {
policies := []api.PullPolicy{api.PullAlways, api.PullNever, api.PullIfNotPresent}
*p = policies[c.Rand.Intn(len(policies))]
},
func(rp *api.RestartPolicy, c fuzz.Continue) {
policies := []api.RestartPolicy{api.RestartPolicyAlways, api.RestartPolicyNever, api.RestartPolicyOnFailure}
*rp = policies[c.Rand.Intn(len(policies))]
},
// api.DownwardAPIVolumeFile needs to have a specific func since FieldRef has to be
// defaulted to a version otherwise roundtrip will fail
func(m *api.DownwardAPIVolumeFile, c fuzz.Continue) {
m.Path = c.RandString()
versions := []string{"v1"}
m.FieldRef = &api.ObjectFieldSelector{}
m.FieldRef.APIVersion = versions[c.Rand.Intn(len(versions))]
m.FieldRef.FieldPath = c.RandString()
c.Fuzz(m.Mode)
if m.Mode != nil {
*m.Mode &= 0777
}
},
func(s *api.SecretVolumeSource, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
if c.RandBool() {
opt := c.RandBool()
s.Optional = &opt
}
// DefaultMode should always be set, it has a default
// value and it is expected to be between 0 and 0777
var mode int32
c.Fuzz(&mode)
mode &= 0777
s.DefaultMode = &mode
},
func(cm *api.ConfigMapVolumeSource, c fuzz.Continue) {
c.FuzzNoCustom(cm) // fuzz self without calling this function again
if c.RandBool() {
opt := c.RandBool()
cm.Optional = &opt
}
// DefaultMode should always be set, it has a default
// value and it is expected to be between 0 and 0777
var mode int32
c.Fuzz(&mode)
mode &= 0777
cm.DefaultMode = &mode
},
func(d *api.DownwardAPIVolumeSource, c fuzz.Continue) {
c.FuzzNoCustom(d) // fuzz self without calling this function again
// DefaultMode should always be set, it has a default
// value and it is expected to be between 0 and 0777
var mode int32
c.Fuzz(&mode)
mode &= 0777
d.DefaultMode = &mode
},
func(s *api.ProjectedVolumeSource, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
// DefaultMode should always be set, it has a default
// value and it is expected to be between 0 and 0777
var mode int32
c.Fuzz(&mode)
mode &= 0777
s.DefaultMode = &mode
},
func(k *api.KeyToPath, c fuzz.Continue) {
c.FuzzNoCustom(k) // fuzz self without calling this function again
k.Key = c.RandString()
k.Path = c.RandString()
// Mode is not mandatory, but if it is set, it should be
// a value between 0 and 0777
if k.Mode != nil {
*k.Mode &= 0777
}
},
func(vs *api.VolumeSource, c fuzz.Continue) {
// Exactly one of the fields must be set.
v := reflect.ValueOf(vs).Elem()
i := int(c.RandUint64() % uint64(v.NumField()))
t := v.Field(i).Addr()
for v.Field(i).IsNil() {
c.Fuzz(t.Interface())
}
},
func(i *api.ISCSIVolumeSource, c fuzz.Continue) {
i.ISCSIInterface = c.RandString()
if i.ISCSIInterface == "" {
i.ISCSIInterface = "default"
}
},
func(d *api.DNSPolicy, c fuzz.Continue) {
policies := []api.DNSPolicy{api.DNSClusterFirst, api.DNSDefault}
*d = policies[c.Rand.Intn(len(policies))]
},
func(p *api.Protocol, c fuzz.Continue) {
protocols := []api.Protocol{api.ProtocolTCP, api.ProtocolUDP}
*p = protocols[c.Rand.Intn(len(protocols))]
},
func(p *api.ServiceAffinity, c fuzz.Continue) {
types := []api.ServiceAffinity{api.ServiceAffinityClientIP, api.ServiceAffinityNone}
*p = types[c.Rand.Intn(len(types))]
},
func(p *api.ServiceType, c fuzz.Continue) {
types := []api.ServiceType{api.ServiceTypeClusterIP, api.ServiceTypeNodePort, api.ServiceTypeLoadBalancer}
*p = types[c.Rand.Intn(len(types))]
},
func(p *api.ServiceExternalTrafficPolicyType, c fuzz.Continue) {
types := []api.ServiceExternalTrafficPolicyType{api.ServiceExternalTrafficPolicyTypeGlobal, api.ServiceExternalTrafficPolicyTypeLocal}
*p = types[c.Rand.Intn(len(types))]
},
func(ct *api.Container, c fuzz.Continue) {
c.FuzzNoCustom(ct) // fuzz self without calling this function again
ct.TerminationMessagePath = "/" + ct.TerminationMessagePath // Must be non-empty
ct.TerminationMessagePolicy = "File"
},
func(p *api.Probe, c fuzz.Continue) {
c.FuzzNoCustom(p)
// These fields have default values.
intFieldsWithDefaults := [...]string{"TimeoutSeconds", "PeriodSeconds", "SuccessThreshold", "FailureThreshold"}
v := reflect.ValueOf(p).Elem()
for _, field := range intFieldsWithDefaults {
f := v.FieldByName(field)
if f.Int() == 0 {
f.SetInt(1)
}
}
},
func(ev *api.EnvVar, c fuzz.Continue) {
ev.Name = c.RandString()
if c.RandBool() {
ev.Value = c.RandString()
} else {
ev.ValueFrom = &api.EnvVarSource{}
ev.ValueFrom.FieldRef = &api.ObjectFieldSelector{}
var versions []schema.GroupVersion
for _, testGroup := range testapi.Groups {
versions = append(versions, *testGroup.GroupVersion())
}
ev.ValueFrom.FieldRef.APIVersion = versions[c.Rand.Intn(len(versions))].String()
ev.ValueFrom.FieldRef.FieldPath = c.RandString()
}
},
func(ev *api.EnvFromSource, c fuzz.Continue) {
if c.RandBool() {
ev.Prefix = "p_"
}
if c.RandBool() {
c.Fuzz(&ev.ConfigMapRef)
} else {
c.Fuzz(&ev.SecretRef)
}
},
func(cm *api.ConfigMapEnvSource, c fuzz.Continue) {
c.FuzzNoCustom(cm) // fuzz self without calling this function again
if c.RandBool() {
opt := c.RandBool()
cm.Optional = &opt
}
},
func(s *api.SecretEnvSource, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
},
func(sc *api.SecurityContext, c fuzz.Continue) {
c.FuzzNoCustom(sc) // fuzz self without calling this function again
if c.RandBool() {
priv := c.RandBool()
sc.Privileged = &priv
}
if c.RandBool() {
sc.Capabilities = &api.Capabilities{
Add: make([]api.Capability, 0),
Drop: make([]api.Capability, 0),
}
c.Fuzz(&sc.Capabilities.Add)
c.Fuzz(&sc.Capabilities.Drop)
}
},
func(s *api.Secret, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
s.Type = api.SecretTypeOpaque
},
func(r *api.RBDVolumeSource, c fuzz.Continue) {
r.RBDPool = c.RandString()
if r.RBDPool == "" {
r.RBDPool = "rbd"
}
r.RadosUser = c.RandString()
if r.RadosUser == "" {
r.RadosUser = "admin"
}
r.Keyring = c.RandString()
if r.Keyring == "" {
r.Keyring = "/etc/ceph/keyring"
}
},
func(pv *api.PersistentVolume, c fuzz.Continue) {
c.FuzzNoCustom(pv) // fuzz self without calling this function again
types := []api.PersistentVolumePhase{api.VolumeAvailable, api.VolumePending, api.VolumeBound, api.VolumeReleased, api.VolumeFailed}
pv.Status.Phase = types[c.Rand.Intn(len(types))]
pv.Status.Message = c.RandString()
reclamationPolicies := []api.PersistentVolumeReclaimPolicy{api.PersistentVolumeReclaimRecycle, api.PersistentVolumeReclaimRetain}
pv.Spec.PersistentVolumeReclaimPolicy = reclamationPolicies[c.Rand.Intn(len(reclamationPolicies))]
},
func(pvc *api.PersistentVolumeClaim, c fuzz.Continue) {
c.FuzzNoCustom(pvc) // fuzz self without calling this function again
types := []api.PersistentVolumeClaimPhase{api.ClaimBound, api.ClaimPending, api.ClaimLost}
pvc.Status.Phase = types[c.Rand.Intn(len(types))]
},
func(obj *api.AzureDiskVolumeSource, c fuzz.Continue) {
if obj.CachingMode == nil {
obj.CachingMode = new(api.AzureDataDiskCachingMode)
*obj.CachingMode = api.AzureDataDiskCachingReadWrite
}
if obj.Kind == nil {
obj.Kind = new(api.AzureDataDiskKind)
*obj.Kind = api.AzureSharedBlobDisk
}
if obj.FSType == nil {
obj.FSType = new(string)
*obj.FSType = "ext4"
}
if obj.ReadOnly == nil {
obj.ReadOnly = new(bool)
*obj.ReadOnly = false
}
},
func(sio *api.ScaleIOVolumeSource, c fuzz.Continue) {
sio.ProtectionDomain = c.RandString()
if sio.ProtectionDomain == "" {
sio.ProtectionDomain = "default"
}
sio.StoragePool = c.RandString()
if sio.StoragePool == "" {
sio.StoragePool = "default"
}
sio.StorageMode = c.RandString()
if sio.StorageMode == "" {
sio.StorageMode = "ThinProvisioned"
}
sio.FSType = c.RandString()
if sio.FSType == "" {
sio.FSType = "xfs"
}
},
func(s *api.NamespaceSpec, c fuzz.Continue) {
s.Finalizers = []api.FinalizerName{api.FinalizerKubernetes}
},
func(s *api.NamespaceStatus, c fuzz.Continue) {
s.Phase = api.NamespaceActive
},
func(http *api.HTTPGetAction, c fuzz.Continue) {
c.FuzzNoCustom(http) // fuzz self without calling this function again
http.Path = "/" + http.Path // can't be blank
http.Scheme = "x" + http.Scheme // can't be blank
},
func(ss *api.ServiceSpec, c fuzz.Continue) {
c.FuzzNoCustom(ss) // fuzz self without calling this function again
if len(ss.Ports) == 0 {
// There must be at least 1 port.
ss.Ports = append(ss.Ports, api.ServicePort{})
c.Fuzz(&ss.Ports[0])
}
for i := range ss.Ports {
switch ss.Ports[i].TargetPort.Type {
case intstr.Int:
ss.Ports[i].TargetPort.IntVal = 1 + ss.Ports[i].TargetPort.IntVal%65535 // non-zero
case intstr.String:
ss.Ports[i].TargetPort.StrVal = "x" + ss.Ports[i].TargetPort.StrVal // non-empty
}
}
},
func(n *api.Node, c fuzz.Continue) {
c.FuzzNoCustom(n)
n.Spec.ExternalID = "external"
},
func(s *api.NodeStatus, c fuzz.Continue) {
c.FuzzNoCustom(s)
s.Allocatable = s.Capacity
},
}
}
func extensionFuncs(t apitesting.TestingCommon) []interface{} {
return []interface{}{
func(j *extensions.DeploymentSpec, c fuzz.Continue) {
c.FuzzNoCustom(j) // fuzz self without calling this function again
rhl := int32(c.Rand.Int31())
pds := int32(c.Rand.Int31())
j.RevisionHistoryLimit = &rhl
j.ProgressDeadlineSeconds = &pds
},
func(j *extensions.DeploymentStrategy, c fuzz.Continue) {
c.FuzzNoCustom(j) // fuzz self without calling this function again
// Ensure that strategyType is one of valid values.
strategyTypes := []extensions.DeploymentStrategyType{extensions.RecreateDeploymentStrategyType, extensions.RollingUpdateDeploymentStrategyType}
j.Type = strategyTypes[c.Rand.Intn(len(strategyTypes))]
if j.Type != extensions.RollingUpdateDeploymentStrategyType {
j.RollingUpdate = nil
} else {
rollingUpdate := extensions.RollingUpdateDeployment{}
if c.RandBool() {
rollingUpdate.MaxUnavailable = intstr.FromInt(int(c.Rand.Int31()))
rollingUpdate.MaxSurge = intstr.FromInt(int(c.Rand.Int31()))
} else {
rollingUpdate.MaxSurge = intstr.FromString(fmt.Sprintf("%d%%", c.Rand.Int31()))
}
j.RollingUpdate = &rollingUpdate
}
},
func(psp *extensions.PodSecurityPolicySpec, c fuzz.Continue) {
c.FuzzNoCustom(psp) // fuzz self without calling this function again
runAsUserRules := []extensions.RunAsUserStrategy{extensions.RunAsUserStrategyMustRunAsNonRoot, extensions.RunAsUserStrategyMustRunAs, extensions.RunAsUserStrategyRunAsAny}
psp.RunAsUser.Rule = runAsUserRules[c.Rand.Intn(len(runAsUserRules))]
seLinuxRules := []extensions.SELinuxStrategy{extensions.SELinuxStrategyRunAsAny, extensions.SELinuxStrategyMustRunAs}
psp.SELinux.Rule = seLinuxRules[c.Rand.Intn(len(seLinuxRules))]
},
func(s *extensions.Scale, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
// TODO: Implement a fuzzer to generate valid keys, values and operators for
// selector requirements.
if s.Status.Selector != nil {
s.Status.Selector = &metav1.LabelSelector{
MatchLabels: map[string]string{
"testlabelkey": "testlabelval",
},
MatchExpressions: []metav1.LabelSelectorRequirement{
{
Key: "testkey",
Operator: metav1.LabelSelectorOpIn,
Values: []string{"val1", "val2", "val3"},
},
},
}
}
},
func(j *extensions.DaemonSetUpdateStrategy, c fuzz.Continue) {
c.FuzzNoCustom(j) // fuzz self without calling this function again
// Ensure that strategyType is one of valid values.
strategyTypes := []extensions.DaemonSetUpdateStrategyType{extensions.RollingUpdateDaemonSetStrategyType, extensions.OnDeleteDaemonSetStrategyType}
j.Type = strategyTypes[c.Rand.Intn(len(strategyTypes))]
if j.Type != extensions.RollingUpdateDaemonSetStrategyType {
j.RollingUpdate = nil
} else {
rollingUpdate := extensions.RollingUpdateDaemonSet{}
if c.RandBool() {
if c.RandBool() {
rollingUpdate.MaxUnavailable = intstr.FromInt(1 + int(c.Rand.Int31()))
} else {
rollingUpdate.MaxUnavailable = intstr.FromString(fmt.Sprintf("%d%%", 1+c.Rand.Int31()))
}
}
j.RollingUpdate = &rollingUpdate
}
},
}
}
func batchFuncs(t apitesting.TestingCommon) []interface{} {
return []interface{}{
func(j *batch.JobSpec, c fuzz.Continue) {
c.FuzzNoCustom(j) // fuzz self without calling this function again
completions := int32(c.Rand.Int31())
parallelism := int32(c.Rand.Int31())
j.Completions = &completions
j.Parallelism = ¶llelism
if c.Rand.Int31()%2 == 0 {
j.ManualSelector = newBool(true)
} else {
j.ManualSelector = nil
}
},
func(sj *batch.CronJobSpec, c fuzz.Continue) {
c.FuzzNoCustom(sj)
suspend := c.RandBool()
sj.Suspend = &suspend
sds := int64(c.RandUint64())
sj.StartingDeadlineSeconds = &sds
sj.Schedule = c.RandString()
if hasSuccessLimit := c.RandBool(); hasSuccessLimit {
successfulJobsHistoryLimit := int32(c.Rand.Int31())
sj.SuccessfulJobsHistoryLimit = &successfulJobsHistoryLimit
}
if hasFailedLimit := c.RandBool(); hasFailedLimit {
failedJobsHistoryLimit := int32(c.Rand.Int31())
sj.FailedJobsHistoryLimit = &failedJobsHistoryLimit
}
},
func(cp *batch.ConcurrencyPolicy, c fuzz.Continue) {
policies := []batch.ConcurrencyPolicy{batch.AllowConcurrent, batch.ForbidConcurrent, batch.ReplaceConcurrent}
*cp = policies[c.Rand.Intn(len(policies))]
},
}
}
func autoscalingFuncs(t apitesting.TestingCommon) []interface{} {
return []interface{}{
func(s *autoscaling.HorizontalPodAutoscalerSpec, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
minReplicas := int32(c.Rand.Int31())
s.MinReplicas = &minReplicas
randomQuantity := func() resource.Quantity {
var q resource.Quantity
c.Fuzz(&q)
// precalc the string for benchmarking purposes
_ = q.String()
return q
}
targetUtilization := int32(c.RandUint64())
s.Metrics = []autoscaling.MetricSpec{
{
Type: autoscaling.PodsMetricSourceType,
Pods: &autoscaling.PodsMetricSource{
MetricName: c.RandString(),
TargetAverageValue: randomQuantity(),
},
},
{
Type: autoscaling.ResourceMetricSourceType,
Resource: &autoscaling.ResourceMetricSource{
Name: api.ResourceCPU,
TargetAverageUtilization: &targetUtilization,
},
},
}
},
func(s *autoscaling.HorizontalPodAutoscalerStatus, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
randomQuantity := func() resource.Quantity {
var q resource.Quantity
c.Fuzz(&q)
// precalc the string for benchmarking purposes
_ = q.String()
return q
}
currentUtilization := int32(c.RandUint64())
s.CurrentMetrics = []autoscaling.MetricStatus{
{
Type: autoscaling.PodsMetricSourceType,
Pods: &autoscaling.PodsMetricStatus{
MetricName: c.RandString(),
CurrentAverageValue: randomQuantity(),
},
},
{
Type: autoscaling.ResourceMetricSourceType,
Resource: &autoscaling.ResourceMetricStatus{
Name: api.ResourceCPU,
CurrentAverageUtilization: ¤tUtilization,
},
},
}
},
}
}
func rbacFuncs(t apitesting.TestingCommon) []interface{} {
return []interface{}{
func(r *rbac.RoleRef, c fuzz.Continue) {
c.FuzzNoCustom(r) // fuzz self without calling this function again
// match defaulter
if len(r.APIGroup) == 0 {
r.APIGroup = rbac.GroupName
}
},
func(r *rbac.Subject, c fuzz.Continue) {
switch c.Int31n(3) {
case 0:
r.Kind = rbac.ServiceAccountKind
r.APIGroup = ""
c.FuzzNoCustom(&r.Name)
c.FuzzNoCustom(&r.Namespace)
case 1:
r.Kind = rbac.UserKind
r.APIGroup = rbac.GroupName
c.FuzzNoCustom(&r.Name)
// user "*" won't round trip because we convert it to the system:authenticated group. try again.
for r.Name == "*" {
c.FuzzNoCustom(&r.Name)
}
case 2:
r.Kind = rbac.GroupKind
r.APIGroup = rbac.GroupName
c.FuzzNoCustom(&r.Name)
}
},
}
}
func appsFuncs(t apitesting.TestingCommon) []interface{} {
return []interface{}{
func(s *apps.StatefulSet, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
// match defaulter
if len(s.Spec.PodManagementPolicy) == 0 {
s.Spec.PodManagementPolicy = apps.OrderedReadyPodManagement
}
},
}
}
func policyFuncs(t apitesting.TestingCommon) []interface{} {
return []interface{}{
func(s *policy.PodDisruptionBudgetStatus, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
s.PodDisruptionsAllowed = int32(c.Rand.Intn(2))
},
}
}
func certificateFuncs(t apitesting.TestingCommon) []interface{} {
return []interface{}{
func(obj *certificates.CertificateSigningRequestSpec, c fuzz.Continue) {
c.FuzzNoCustom(obj) // fuzz self without calling this function again
obj.Usages = []certificates.KeyUsage{certificates.UsageKeyEncipherment}
},
}
}
func admissionregistrationFuncs(t apitesting.TestingCommon) []interface{} {
return []interface{}{
func(obj *admissionregistration.ExternalAdmissionHook, c fuzz.Continue) {
c.FuzzNoCustom(obj) // fuzz self without calling this function again
p := admissionregistration.FailurePolicyType("Fail")
obj.FailurePolicy = &p
},
func(obj *admissionregistration.Initializer, c fuzz.Continue) {
c.FuzzNoCustom(obj) // fuzz self without calling this function again
p := admissionregistration.FailurePolicyType("Fail")
obj.FailurePolicy = &p
},
}
}
func FuzzerFuncs(t apitesting.TestingCommon, codecs runtimeserializer.CodecFactory) []interface{} {
return apitesting.MergeFuzzerFuncs(t,
apitesting.GenericFuzzerFuncs(t, codecs),
overrideGenericFuncs(t, codecs),
coreFuncs(t),
extensionFuncs(t),
appsFuncs(t),
batchFuncs(t),
autoscalingFuncs(t),
rbacFuncs(t),
kubeadmfuzzer.KubeadmFuzzerFuncs(t),
policyFuncs(t),
certificateFuncs(t),
admissionregistrationFuncs(t),
)
}
func newBool(val bool) *bool {
p := new(bool)
*p = val
return p
}