ad9ba23995
Leaving the type fields as comments for reference and reminder. But deleting the conversion, defaulting and validation code. They can always be brough back from the previous PR once the types are introduced. Because builds break without them anyway that serves as a reminder, so there is no need to leave them commented out.
410 lines
14 KiB
Go
410 lines
14 KiB
Go
/*
|
|
Copyright 2015 The Kubernetes Authors All rights reserved.
|
|
|
|
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"
|
|
"math/rand"
|
|
"reflect"
|
|
"strconv"
|
|
"testing"
|
|
|
|
docker "github.com/fsouza/go-dockerclient"
|
|
"k8s.io/kubernetes/pkg/api"
|
|
"k8s.io/kubernetes/pkg/api/resource"
|
|
"k8s.io/kubernetes/pkg/api/testapi"
|
|
"k8s.io/kubernetes/pkg/api/unversioned"
|
|
"k8s.io/kubernetes/pkg/apis/extensions"
|
|
"k8s.io/kubernetes/pkg/fields"
|
|
"k8s.io/kubernetes/pkg/labels"
|
|
"k8s.io/kubernetes/pkg/runtime"
|
|
"k8s.io/kubernetes/pkg/types"
|
|
"k8s.io/kubernetes/pkg/util/intstr"
|
|
|
|
"github.com/google/gofuzz"
|
|
)
|
|
|
|
// FuzzerFor can randomly populate api objects that are destined for version.
|
|
func FuzzerFor(t *testing.T, version unversioned.GroupVersion, src rand.Source) *fuzz.Fuzzer {
|
|
f := fuzz.New().NilChance(.5).NumElements(1, 1)
|
|
if src != nil {
|
|
f.RandSource(src)
|
|
}
|
|
f.Funcs(
|
|
func(j *int, c fuzz.Continue) {
|
|
*j = int(c.Int31())
|
|
},
|
|
func(j **int, c fuzz.Continue) {
|
|
if c.RandBool() {
|
|
i := int(c.Int31())
|
|
*j = &i
|
|
} else {
|
|
*j = nil
|
|
}
|
|
},
|
|
func(q *resource.Quantity, c fuzz.Continue) {
|
|
*q = *resource.NewQuantity(c.Int63n(1000), resource.DecimalExponent)
|
|
},
|
|
func(j *runtime.TypeMeta, c fuzz.Continue) {
|
|
// We have to customize the randomization of TypeMetas because their
|
|
// APIVersion and Kind must remain blank in memory.
|
|
j.APIVersion = ""
|
|
j.Kind = ""
|
|
},
|
|
func(j *unversioned.TypeMeta, c fuzz.Continue) {
|
|
// We have to customize the randomization of TypeMetas because their
|
|
// APIVersion and Kind must remain blank in memory.
|
|
j.APIVersion = ""
|
|
j.Kind = ""
|
|
},
|
|
func(j *api.ObjectMeta, c fuzz.Continue) {
|
|
j.Name = c.RandString()
|
|
j.ResourceVersion = strconv.FormatUint(c.RandUint64(), 10)
|
|
j.SelfLink = c.RandString()
|
|
j.UID = types.UID(c.RandString())
|
|
j.GenerateName = c.RandString()
|
|
|
|
var sec, nsec int64
|
|
c.Fuzz(&sec)
|
|
c.Fuzz(&nsec)
|
|
j.CreationTimestamp = unversioned.Unix(sec, nsec).Rfc3339Copy()
|
|
},
|
|
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 *unversioned.ListMeta, c fuzz.Continue) {
|
|
j.ResourceVersion = strconv.FormatUint(c.RandUint64(), 10)
|
|
j.SelfLink = 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(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)
|
|
}
|
|
},
|
|
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 *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.RandUint64()))
|
|
rollingUpdate.MaxSurge = intstr.FromInt(int(c.RandUint64()))
|
|
} else {
|
|
rollingUpdate.MaxSurge = intstr.FromString(fmt.Sprintf("%d%%", c.RandUint64()))
|
|
}
|
|
j.RollingUpdate = &rollingUpdate
|
|
}
|
|
},
|
|
func(j *extensions.JobSpec, c fuzz.Continue) {
|
|
c.FuzzNoCustom(j) // fuzz self without calling this function again
|
|
completions := int(c.Rand.Int31())
|
|
parallelism := int(c.Rand.Int31())
|
|
j.Completions = &completions
|
|
j.Parallelism = ¶llelism
|
|
},
|
|
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(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
|
|
RawJSON: []byte(`{"apiVersion":"unknown.group/unknown","kind":"Something","someKey":"someValue"}`),
|
|
}
|
|
} else {
|
|
types := []runtime.Object{&api.Pod{}, &api.ReplicationController{}}
|
|
t := types[c.Rand.Intn(len(types))]
|
|
c.Fuzz(t)
|
|
*j = t
|
|
}
|
|
},
|
|
func(pb map[docker.Port][]docker.PortBinding, c fuzz.Continue) {
|
|
// This is necessary because keys with nil values get omitted.
|
|
// TODO: Is this a bug?
|
|
pb[docker.Port(c.RandString())] = []docker.PortBinding{
|
|
{c.RandString(), c.RandString()},
|
|
{c.RandString(), c.RandString()},
|
|
}
|
|
},
|
|
func(pm map[string]docker.PortMapping, c fuzz.Continue) {
|
|
// This is necessary because keys with nil values get omitted.
|
|
// TODO: Is this a bug?
|
|
pm[c.RandString()] = docker.PortMapping{
|
|
c.RandString(): c.RandString(),
|
|
}
|
|
},
|
|
func(q *api.ResourceRequirements, c fuzz.Continue) {
|
|
randomQuantity := func() resource.Quantity {
|
|
var q resource.Quantity
|
|
c.Fuzz(&q)
|
|
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))]
|
|
},
|
|
// Only api.DownwardAPIVolumeFile needs to have a specific func since FieldRef has to be
|
|
// defaulted to a version otherwise roundtrip will fail
|
|
// For the remaining volume plugins the default fuzzer is enough.
|
|
func(m *api.DownwardAPIVolumeFile, c fuzz.Continue) {
|
|
m.Path = c.RandString()
|
|
versions := []string{"v1"}
|
|
m.FieldRef.APIVersion = versions[c.Rand.Intn(len(versions))]
|
|
m.FieldRef.FieldPath = c.RandString()
|
|
},
|
|
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(ct *api.Container, c fuzz.Continue) {
|
|
c.FuzzNoCustom(ct) // fuzz self without calling this function again
|
|
ct.TerminationMessagePath = "/" + ct.TerminationMessagePath // Must be non-empty
|
|
},
|
|
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 []unversioned.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(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(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}
|
|
pvc.Status.Phase = types[c.Rand.Intn(len(types))]
|
|
},
|
|
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(s *extensions.APIVersion, c fuzz.Continue) {
|
|
// We can't use c.RandString() here because it may generate empty
|
|
// string, which will cause tests failure.
|
|
s.APIGroup = "something"
|
|
},
|
|
func(s *extensions.HorizontalPodAutoscalerSpec, c fuzz.Continue) {
|
|
c.FuzzNoCustom(s) // fuzz self without calling this function again
|
|
minReplicas := int(c.Rand.Int31())
|
|
s.MinReplicas = &minReplicas
|
|
s.CPUUtilization = &extensions.CPUTargetUtilization{TargetPercentage: int(int32(c.RandUint64()))}
|
|
},
|
|
func(psp *extensions.PodSecurityPolicySpec, c fuzz.Continue) {
|
|
c.FuzzNoCustom(psp) // fuzz self without calling this function again
|
|
userTypes := []extensions.RunAsUserStrategy{extensions.RunAsUserStrategyMustRunAsNonRoot, extensions.RunAsUserStrategyMustRunAs, extensions.RunAsUserStrategyRunAsAny}
|
|
psp.RunAsUser.Type = userTypes[c.Rand.Intn(len(userTypes))]
|
|
seLinuxTypes := []extensions.SELinuxContextStrategy{extensions.SELinuxStrategyRunAsAny, extensions.SELinuxStrategyMustRunAs}
|
|
psp.SELinuxContext.Type = seLinuxTypes[c.Rand.Intn(len(seLinuxTypes))]
|
|
},
|
|
)
|
|
return f
|
|
}
|