k8s.io/kubernetes@v1.29.3/pkg/api/testing/fuzzer.go (about)

     1  /*
     2  Copyright 2015 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package testing
    18  
    19  import (
    20  	"fmt"
    21  
    22  	fuzz "github.com/google/gofuzz"
    23  
    24  	appsv1 "k8s.io/api/apps/v1"
    25  	v1 "k8s.io/api/core/v1"
    26  	apitesting "k8s.io/apimachinery/pkg/api/apitesting"
    27  	"k8s.io/apimachinery/pkg/api/apitesting/fuzzer"
    28  	metafuzzer "k8s.io/apimachinery/pkg/apis/meta/fuzzer"
    29  	"k8s.io/apimachinery/pkg/runtime"
    30  	runtimeserializer "k8s.io/apimachinery/pkg/runtime/serializer"
    31  	admissionregistrationfuzzer "k8s.io/kubernetes/pkg/apis/admissionregistration/fuzzer"
    32  	"k8s.io/kubernetes/pkg/apis/apps"
    33  	appsfuzzer "k8s.io/kubernetes/pkg/apis/apps/fuzzer"
    34  	autoscalingfuzzer "k8s.io/kubernetes/pkg/apis/autoscaling/fuzzer"
    35  	batchfuzzer "k8s.io/kubernetes/pkg/apis/batch/fuzzer"
    36  	certificatesfuzzer "k8s.io/kubernetes/pkg/apis/certificates/fuzzer"
    37  	api "k8s.io/kubernetes/pkg/apis/core"
    38  	corefuzzer "k8s.io/kubernetes/pkg/apis/core/fuzzer"
    39  	discoveryfuzzer "k8s.io/kubernetes/pkg/apis/discovery/fuzzer"
    40  	extensionsfuzzer "k8s.io/kubernetes/pkg/apis/extensions/fuzzer"
    41  	flowcontrolfuzzer "k8s.io/kubernetes/pkg/apis/flowcontrol/fuzzer"
    42  	networkingfuzzer "k8s.io/kubernetes/pkg/apis/networking/fuzzer"
    43  	policyfuzzer "k8s.io/kubernetes/pkg/apis/policy/fuzzer"
    44  	rbacfuzzer "k8s.io/kubernetes/pkg/apis/rbac/fuzzer"
    45  	resourcefuzzer "k8s.io/kubernetes/pkg/apis/resource/fuzzer"
    46  	schedulingfuzzer "k8s.io/kubernetes/pkg/apis/scheduling/fuzzer"
    47  	storagefuzzer "k8s.io/kubernetes/pkg/apis/storage/fuzzer"
    48  )
    49  
    50  // overrideGenericFuncs override some generic fuzzer funcs from k8s.io/apiserver in order to have more realistic
    51  // values in a Kubernetes context.
    52  func overrideGenericFuncs(codecs runtimeserializer.CodecFactory) []interface{} {
    53  	return []interface{}{
    54  		func(j *runtime.Object, c fuzz.Continue) {
    55  			// TODO: uncomment when round trip starts from a versioned object
    56  			if true { //c.RandBool() {
    57  				*j = &runtime.Unknown{
    58  					// We do not set TypeMeta here because it is not carried through a round trip
    59  					Raw:         []byte(`{"apiVersion":"unknown.group/unknown","kind":"Something","someKey":"someValue"}`),
    60  					ContentType: runtime.ContentTypeJSON,
    61  				}
    62  			} else {
    63  				types := []runtime.Object{&api.Pod{}, &api.ReplicationController{}}
    64  				t := types[c.Rand.Intn(len(types))]
    65  				c.Fuzz(t)
    66  				*j = t
    67  			}
    68  		},
    69  		func(r *runtime.RawExtension, c fuzz.Continue) {
    70  			// Pick an arbitrary type and fuzz it
    71  			types := []runtime.Object{&api.Pod{}, &apps.Deployment{}, &api.Service{}}
    72  			obj := types[c.Rand.Intn(len(types))]
    73  			c.Fuzz(obj)
    74  
    75  			var codec runtime.Codec
    76  			switch obj.(type) {
    77  			case *apps.Deployment:
    78  				codec = apitesting.TestCodec(codecs, appsv1.SchemeGroupVersion)
    79  			default:
    80  				codec = apitesting.TestCodec(codecs, v1.SchemeGroupVersion)
    81  			}
    82  
    83  			// Convert the object to raw bytes
    84  			bytes, err := runtime.Encode(codec, obj)
    85  			if err != nil {
    86  				panic(fmt.Sprintf("Failed to encode object: %v", err))
    87  			}
    88  
    89  			// Set the bytes field on the RawExtension
    90  			r.Raw = bytes
    91  		},
    92  	}
    93  }
    94  
    95  // FuzzerFuncs is a list of fuzzer functions
    96  var FuzzerFuncs = fuzzer.MergeFuzzerFuncs(
    97  	overrideGenericFuncs,
    98  	corefuzzer.Funcs,
    99  	extensionsfuzzer.Funcs,
   100  	appsfuzzer.Funcs,
   101  	batchfuzzer.Funcs,
   102  	autoscalingfuzzer.Funcs,
   103  	rbacfuzzer.Funcs,
   104  	policyfuzzer.Funcs,
   105  	resourcefuzzer.Funcs,
   106  	certificatesfuzzer.Funcs,
   107  	admissionregistrationfuzzer.Funcs,
   108  	storagefuzzer.Funcs,
   109  	networkingfuzzer.Funcs,
   110  	metafuzzer.Funcs,
   111  	schedulingfuzzer.Funcs,
   112  	discoveryfuzzer.Funcs,
   113  	flowcontrolfuzzer.Funcs,
   114  )