Graduate ElasticIndexedJob to GA

pkg/apis/batch/validation/validation.go

@@ -838,13 +838,7 @@ func ValidateJobTemplateSpec(spec *batch.JobTemplateSpec, fldPath *field.Path, o
 }
 
 func validateCompletions(spec, oldSpec batch.JobSpec, fldPath *field.Path, opts JobValidationOptions) field.ErrorList {
-	if !opts.AllowElasticIndexedJobs {
+	// Completions is immutable for non-indexed jobs, but mutable for Indexed Jobs.
-		return apivalidation.ValidateImmutableField(spec.Completions, oldSpec.Completions, fldPath)
-	}
-
-	// Completions is immutable for non-indexed jobs.
-	// For Indexed Jobs, if ElasticIndexedJob feature gate is not enabled,
-	// fall back to validating that spec.Completions is always immutable.
 	isIndexedJob := spec.CompletionMode != nil && *spec.CompletionMode == batch.IndexedCompletion
 	if !isIndexedJob {
 		return apivalidation.ValidateImmutableField(spec.Completions, oldSpec.Completions, fldPath)
@@ -998,8 +992,6 @@ type JobValidationOptions struct {
 	apivalidation.PodValidationOptions
 	// Allow mutable node affinity, selector and tolerations of the template
 	AllowMutableSchedulingDirectives bool
-	// Allow elastic indexed jobs
-	AllowElasticIndexedJobs bool
 	// Require Job to have the label on batch.kubernetes.io/job-name and batch.kubernetes.io/controller-uid
 	RequirePrefixedLabels bool
 }

pkg/apis/batch/validation/validation_test.go

@@ -1609,22 +1609,6 @@ func TestValidateJobUpdate(t *testing.T) {
 				Field: "spec.completions",
 			},
 		},
-		"immutable completions for indexed job when AllowElasticIndexedJobs is false": {
-			old: batch.Job{
-				ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault},
-				Spec: batch.JobSpec{
-					Selector: validGeneratedSelector,
-					Template: validPodTemplateSpecForGenerated,
-				},
-			},
-			update: func(job *batch.Job) {
-				job.Spec.Completions = pointer.Int32(1)
-			},
-			err: &field.Error{
-				Type:  field.ErrorTypeInvalid,
-				Field: "spec.completions",
-			},
-		},
 		"immutable selector": {
 			old: batch.Job{
 				ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault},
@@ -1930,7 +1914,7 @@ func TestValidateJobUpdate(t *testing.T) {
 				Field: "spec.completionMode",
 			},
 		},
-		"immutable completions for non-indexed job when AllowElasticIndexedJobs is true": {
+		"immutable completions for non-indexed job": {
 			old: batch.Job{
 				ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault},
 				Spec: batch.JobSpec{
@@ -1947,7 +1931,6 @@ func TestValidateJobUpdate(t *testing.T) {
 				Type:  field.ErrorTypeInvalid,
 				Field: "spec.completions",
 			},
-			opts: JobValidationOptions{AllowElasticIndexedJobs: true},
 		},
 
 		"immutable node affinity": {
@@ -2200,9 +2183,6 @@ func TestValidateJobUpdate(t *testing.T) {
 				job.Spec.Completions = pointer.Int32(2)
 				job.Spec.Parallelism = pointer.Int32(2)
 			},
-			opts: JobValidationOptions{
-				AllowElasticIndexedJobs: true,
-			},
 		},
 		"previous parallelism != previous completions, new parallelism == new completions": {
 			old: batch.Job{
@@ -2219,9 +2199,6 @@ func TestValidateJobUpdate(t *testing.T) {
 				job.Spec.Completions = pointer.Int32(3)
 				job.Spec.Parallelism = pointer.Int32(3)
 			},
-			opts: JobValidationOptions{
-				AllowElasticIndexedJobs: true,
-			},
 		},
 		"indexed job updating completions and parallelism to different values is invalid": {
 			old: batch.Job{
@@ -2238,9 +2215,6 @@ func TestValidateJobUpdate(t *testing.T) {
 				job.Spec.Completions = pointer.Int32(2)
 				job.Spec.Parallelism = pointer.Int32(3)
 			},
-			opts: JobValidationOptions{
-				AllowElasticIndexedJobs: true,
-			},
 			err: &field.Error{
 				Type:  field.ErrorTypeInvalid,
 				Field: "spec.completions",
@@ -2261,9 +2235,6 @@ func TestValidateJobUpdate(t *testing.T) {
 				job.Spec.Completions = nil
 				job.Spec.Parallelism = pointer.Int32(3)
 			},
-			opts: JobValidationOptions{
-				AllowElasticIndexedJobs: true,
-			},
 			err: &field.Error{
 				Type:  field.ErrorTypeRequired,
 				Field: "spec.completions",
@@ -2284,9 +2255,6 @@ func TestValidateJobUpdate(t *testing.T) {
 				job.Spec.Completions = pointer.Int32(2)
 				job.Spec.Parallelism = pointer.Int32(1)
 			},
-			opts: JobValidationOptions{
-				AllowElasticIndexedJobs: true,
-			},
 		},
 		"indexed job with completions unchanged, parallelism increased higher than completions": {
 			old: batch.Job{
@@ -2303,9 +2271,6 @@ func TestValidateJobUpdate(t *testing.T) {
 				job.Spec.Completions = pointer.Int32(2)
 				job.Spec.Parallelism = pointer.Int32(3)
 			},
-			opts: JobValidationOptions{
-				AllowElasticIndexedJobs: true,
-			},
 		},
 	}
 	ignoreValueAndDetail := cmpopts.IgnoreFields(field.Error{}, "BadValue", "Detail")

pkg/features/kube_features.go

@@ -1131,7 +1131,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 
 	RuntimeClassInImageCriAPI: {Default: false, PreRelease: featuregate.Alpha},
 
-	ElasticIndexedJob: {Default: true, PreRelease: featuregate.Beta},
+	ElasticIndexedJob: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // GA in 1.31, remove in 1.32
 
 	SchedulerQueueingHints: {Default: false, PreRelease: featuregate.Beta},
 

pkg/registry/batch/job/strategy.go

@@ -187,9 +187,8 @@ func validationOptionsForJob(newJob, oldJob *batch.Job) batchvalidation.JobValid
 		oldPodTemplate = &oldJob.Spec.Template
 	}
 	opts := batchvalidation.JobValidationOptions{
-		PodValidationOptions:    pod.GetValidationOptionsFromPodTemplate(newPodTemplate, oldPodTemplate),
+		PodValidationOptions:  pod.GetValidationOptionsFromPodTemplate(newPodTemplate, oldPodTemplate),
-		AllowElasticIndexedJobs: utilfeature.DefaultFeatureGate.Enabled(features.ElasticIndexedJob),
+		RequirePrefixedLabels: true,
-		RequirePrefixedLabels:   true,
 	}
 	if oldJob != nil {
 		opts.AllowInvalidLabelValueInSelector = opts.AllowInvalidLabelValueInSelector || metav1validation.LabelSelectorHasInvalidLabelValue(oldJob.Spec.Selector)

test/integration/job/job_test.go

@@ -34,10 +34,8 @@ import (
 	eventsv1 "k8s.io/api/events/v1"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/sets"
-	"k8s.io/apimachinery/pkg/util/validation/field"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/apimachinery/pkg/watch"
 	"k8s.io/apiserver/pkg/util/feature"
@@ -2756,25 +2754,10 @@ func TestElasticIndexedJob(t *testing.T) {
 		wantTerminating      *int32
 	}
 	cases := map[string]struct {
-		featureGate bool
+		jobUpdates []jobUpdate
-		jobUpdates  []jobUpdate
+		wantErr    *apierrors.StatusError
-		wantErr     *apierrors.StatusError
 	}{
-		"feature flag off, mutation not allowed": {
-			jobUpdates: []jobUpdate{
-				{
-					completions:     ptr.To[int32](4),
-					wantTerminating: ptr.To[int32](0),
-				},
-			},
-			wantErr: apierrors.NewInvalid(
-				schema.GroupKind{Group: "batch", Kind: "Job"},
-				"test-job",
-				field.ErrorList{field.Invalid(field.NewPath("spec", "completions"), 4, "field is immutable")},
-			),
-		},
 		"scale up": {
-			featureGate: true,
 			jobUpdates: []jobUpdate{
 				{
 					// Scale up completions 3->4 then succeed indexes 0-3
@@ -2786,7 +2769,6 @@ func TestElasticIndexedJob(t *testing.T) {
 			},
 		},
 		"scale down": {
-			featureGate: true,
 			jobUpdates: []jobUpdate{
 				// First succeed index 1 and fail index 2 while completions is still original value (3).
 				{
@@ -2810,7 +2792,6 @@ func TestElasticIndexedJob(t *testing.T) {
 			},
 		},
 		"index finishes successfully, scale down, scale up": {
-			featureGate: true,
 			jobUpdates: []jobUpdate{
 				// First succeed index 2 while completions is still original value (3).
 				{
@@ -2837,7 +2818,6 @@ func TestElasticIndexedJob(t *testing.T) {
 			},
 		},
 		"scale down to 0, verify that the job succeeds": {
-			featureGate: true,
 			jobUpdates: []jobUpdate{
 				{
 					completions:     ptr.To[int32](0),
@@ -2850,7 +2830,6 @@ func TestElasticIndexedJob(t *testing.T) {
 	for name, tc := range cases {
 		tc := tc
 		t.Run(name, func(t *testing.T) {
-			featuregatetesting.SetFeatureGateDuringTest(t, feature.DefaultFeatureGate, features.ElasticIndexedJob, tc.featureGate)
 			closeFn, restConfig, clientSet, ns := setup(t, "indexed")
 			defer closeFn()
 			ctx, cancel := startJobControllerAndWaitForCaches(t, restConfig)