Update defaults (successful|failed)JobsHistoryLimit in batch/v1beta1

pkg/apis/batch/fuzzer/fuzzer.go

@@ -53,14 +53,10 @@ var Funcs = func(codecs runtimeserializer.CodecFactory) []interface{} {
 			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
-			}
+			successfulJobsHistoryLimit := int32(c.Rand.Int31())
+			sj.SuccessfulJobsHistoryLimit = &successfulJobsHistoryLimit
+			failedJobsHistoryLimit := int32(c.Rand.Int31())
+			sj.FailedJobsHistoryLimit = &failedJobsHistoryLimit
 		},
 		func(cp *batch.ConcurrencyPolicy, c fuzz.Continue) {
 			policies := []batch.ConcurrencyPolicy{batch.AllowConcurrent, batch.ForbidConcurrent, batch.ReplaceConcurrent}

pkg/apis/batch/v1beta1/defaults.go

@@ -32,4 +32,12 @@ func SetDefaults_CronJob(obj *batchv1beta1.CronJob) {
 	if obj.Spec.Suspend == nil {
 		obj.Spec.Suspend = new(bool)
 	}
+	if obj.Spec.SuccessfulJobsHistoryLimit == nil {
+		obj.Spec.SuccessfulJobsHistoryLimit = new(int32)
+		*obj.Spec.SuccessfulJobsHistoryLimit = 3
+	}
+	if obj.Spec.FailedJobsHistoryLimit == nil {
+		obj.Spec.FailedJobsHistoryLimit = new(int32)
+		*obj.Spec.FailedJobsHistoryLimit = 1
+	}
 }

pkg/apis/batch/v1beta1/defaults_test.go

@@ -38,22 +38,28 @@ func TestSetDefaultCronJob(t *testing.T) {
 			original: &batchv1beta1.CronJob{},
 			expected: &batchv1beta1.CronJob{
 				Spec: batchv1beta1.CronJobSpec{
-					ConcurrencyPolicy: batchv1beta1.AllowConcurrent,
-					Suspend:           newBool(false),
+					ConcurrencyPolicy:          batchv1beta1.AllowConcurrent,
+					Suspend:                    newBool(false),
+					SuccessfulJobsHistoryLimit: newInt32(3),
+					FailedJobsHistoryLimit:     newInt32(1),
 				},
 			},
 		},
 		"set fields should not be defaulted": {
 			original: &batchv1beta1.CronJob{
 				Spec: batchv1beta1.CronJobSpec{
-					ConcurrencyPolicy: batchv1beta1.ForbidConcurrent,
-					Suspend:           newBool(true),
+					ConcurrencyPolicy:          batchv1beta1.ForbidConcurrent,
+					Suspend:                    newBool(true),
+					SuccessfulJobsHistoryLimit: newInt32(5),
+					FailedJobsHistoryLimit:     newInt32(5),
 				},
 			},
 			expected: &batchv1beta1.CronJob{
 				Spec: batchv1beta1.CronJobSpec{
-					ConcurrencyPolicy: batchv1beta1.ForbidConcurrent,
-					Suspend:           newBool(true),
+					ConcurrencyPolicy:          batchv1beta1.ForbidConcurrent,
+					Suspend:                    newBool(true),
+					SuccessfulJobsHistoryLimit: newInt32(5),
+					FailedJobsHistoryLimit:     newInt32(5),
 				},
 			},
 		},
@@ -74,6 +80,12 @@ func TestSetDefaultCronJob(t *testing.T) {
 		if *actual.Spec.Suspend != *expected.Spec.Suspend {
 			t.Errorf("%s: got different suspend than expected: %v %v", name, *actual.Spec.Suspend, *expected.Spec.Suspend)
 		}
+		if *actual.Spec.SuccessfulJobsHistoryLimit != *expected.Spec.SuccessfulJobsHistoryLimit {
+			t.Errorf("%s: got different successfulJobsHistoryLimit than expected: %v %v", name, *actual.Spec.SuccessfulJobsHistoryLimit, *expected.Spec.SuccessfulJobsHistoryLimit)
+		}
+		if *actual.Spec.FailedJobsHistoryLimit != *expected.Spec.FailedJobsHistoryLimit {
+			t.Errorf("%s: got different failedJobsHistoryLimit than expected: %v %v", name, *actual.Spec.FailedJobsHistoryLimit, *expected.Spec.FailedJobsHistoryLimit)
+		}
 	}
 }
 
@@ -102,3 +114,9 @@ func newBool(val bool) *bool {
 	*p = val
 	return p
 }
+
+func newInt32(val int32) *int32 {
+	p := new(int32)
+	*p = val
+	return p
+}

staging/src/k8s.io/api/batch/v1beta1/types.go

@@ -114,11 +114,13 @@ type CronJobSpec struct {
 
 	// The number of successful finished jobs to retain.
 	// This is a pointer to distinguish between explicit zero and not specified.
+	// Defaults to 3.
 	// +optional
 	SuccessfulJobsHistoryLimit *int32 `json:"successfulJobsHistoryLimit,omitempty" protobuf:"varint,6,opt,name=successfulJobsHistoryLimit"`
 
 	// The number of failed finished jobs to retain.
 	// This is a pointer to distinguish between explicit zero and not specified.
+	// Defaults to 1.
 	// +optional
 	FailedJobsHistoryLimit *int32 `json:"failedJobsHistoryLimit,omitempty" protobuf:"varint,7,opt,name=failedJobsHistoryLimit"`
 }