1e88a682da
- PeriodSeconds - How often to probe - SuccessThreshold - Number of successful probes to go from failure to success state - FailureThreshold - Number of failing probes to go from success to failure state This commit includes to changes in behavior: 1. InitialDelaySeconds now defaults to 10 seconds, rather than the kubelet sync interval (although that also defaults to 10 seconds). 2. Prober only retries on probe error, not failure. To compensate, the default FailureThreshold is set to the maxRetries, 3.
399 lines
14 KiB
Go
399 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/registered"
|
|
"k8s.io/kubernetes/pkg/api/resource"
|
|
"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"
|
|
|
|
"github.com/google/gofuzz"
|
|
"speter.net/go/exp/math/dec/inf"
|
|
)
|
|
|
|
// FuzzerFor can randomly populate api objects that are destined for version.
|
|
func FuzzerFor(t *testing.T, version string, src rand.Source) *fuzz.Fuzzer {
|
|
f := fuzz.New().NilChance(.5).NumElements(1, 1)
|
|
if src != nil {
|
|
f.RandSource(src)
|
|
}
|
|
f.Funcs(
|
|
func(j *runtime.PluginBase, c fuzz.Continue) {
|
|
// Do nothing; this struct has only a Kind field and it must stay blank in memory.
|
|
},
|
|
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) {
|
|
// TODO: add some parsing
|
|
j.LabelSelector, _ = labels.Parse("a=b")
|
|
j.FieldSelector, _ = fields.ParseSelector("a=b")
|
|
},
|
|
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.PodTemplateSpec, c fuzz.Continue) {
|
|
// TODO: v1beta1/2 can't round trip a nil template correctly, fix by having v1beta1/2
|
|
// conversion compare converted object to nil via DeepEqual
|
|
j.ObjectMeta = api.ObjectMeta{}
|
|
c.Fuzz(&j.ObjectMeta)
|
|
j.ObjectMeta = api.ObjectMeta{Labels: j.ObjectMeta.Labels}
|
|
j.Spec = api.PodSpec{}
|
|
c.Fuzz(&j.Spec)
|
|
},
|
|
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 = util.NewIntOrStringFromInt(int(c.RandUint64()))
|
|
rollingUpdate.MaxSurge = util.NewIntOrStringFromInt(int(c.RandUint64()))
|
|
} else {
|
|
rollingUpdate.MaxSurge = util.NewIntOrStringFromString(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 := c.Rand.Int()
|
|
parallelism := c.Rand.Int()
|
|
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{
|
|
TypeMeta: runtime.TypeMeta{Kind: "Something", APIVersion: "unknown"},
|
|
RawJSON: []byte(`{"apiVersion":"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 *resource.Quantity, c fuzz.Continue) {
|
|
// Real Quantity fuzz testing is done elsewhere;
|
|
// this limited subset of functionality survives
|
|
// round-tripping to v1beta1/2.
|
|
q.Amount = &inf.Dec{}
|
|
q.Format = resource.DecimalExponent
|
|
//q.Amount.SetScale(inf.Scale(-c.Intn(12)))
|
|
q.Amount.SetUnscaled(c.Int63n(1000))
|
|
},
|
|
func(q *api.ResourceRequirements, c fuzz.Continue) {
|
|
randomQuantity := func() resource.Quantity {
|
|
return *resource.NewQuantity(c.Int63n(1000), resource.DecimalExponent)
|
|
}
|
|
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) {
|
|
randomQuantity := func() resource.Quantity {
|
|
return *resource.NewQuantity(c.Int63n(1000), resource.DecimalExponent)
|
|
}
|
|
cpuLimit := randomQuantity()
|
|
|
|
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))]
|
|
},
|
|
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()))
|
|
v = v.Field(i).Addr()
|
|
// Use a new fuzzer which cannot populate nil to ensure one field will be set.
|
|
f := fuzz.New().NilChance(0).NumElements(1, 1)
|
|
f.Funcs(
|
|
// 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()
|
|
},
|
|
).Fuzz(v.Interface())
|
|
},
|
|
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{}
|
|
|
|
versions := registered.RegisteredVersions
|
|
|
|
ev.ValueFrom.FieldRef.APIVersion = versions[c.Rand.Intn(len(versions))]
|
|
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(e *api.Event, c fuzz.Continue) {
|
|
c.FuzzNoCustom(e) // fuzz self without calling this function again
|
|
// Fix event count to 1, otherwise, if a v1beta1 or v1beta2 event has a count set arbitrarily, it's count is ignored
|
|
if e.FirstTimestamp.IsZero() {
|
|
e.Count = 1
|
|
} else {
|
|
c.Fuzz(&e.Count)
|
|
}
|
|
},
|
|
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.Kind {
|
|
case util.IntstrInt:
|
|
ss.Ports[i].TargetPort.IntVal = 1 + ss.Ports[i].TargetPort.IntVal%65535 // non-zero
|
|
case util.IntstrString:
|
|
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 *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 := c.Rand.Int()
|
|
s.MinReplicas = &minReplicas
|
|
s.CPUUtilization = &extensions.CPUTargetUtilization{TargetPercentage: int(c.RandUint64())}
|
|
},
|
|
)
|
|
return f
|
|
}
|