check sidecar featuregate in getFinishedTime

Author: AxeZhan

pkg/controller/job/backoff_utils.go

@@ -23,9 +23,11 @@ import (
 
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/util/sets"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/tools/cache"
 	"k8s.io/klog/v2"
 	apipod "k8s.io/kubernetes/pkg/api/v1/pod"
+	"k8s.io/kubernetes/pkg/features"
 	"k8s.io/utils/clock"
 	"k8s.io/utils/ptr"
 )
@@ -185,18 +187,21 @@ func getFinishedTime(p *v1.Pod) time.Time {
 
 func getFinishTimeFromContainers(p *v1.Pod) *time.Time {
 	finishTime := latestFinishTime(nil, p.Status.ContainerStatuses, nil)
-	// We need to check InitContainerStatuses here also,
-	// because with the sidecar (restartable init) containers,
-	// sidecar containers will always finish later than regular containers.
-	names := sets.New[string]()
-	for _, c := range p.Spec.InitContainers {
-		if c.RestartPolicy != nil && *c.RestartPolicy == v1.ContainerRestartPolicyAlways {
-			names.Insert(c.Name)
+	if utilfeature.DefaultFeatureGate.Enabled(features.SidecarContainers) {
+		// We need to check InitContainerStatuses here also,
+		// because with the sidecar (restartable init) containers,
+		// sidecar containers will always finish later than regular containers.
+		names := sets.New[string]()
+		for _, c := range p.Spec.InitContainers {
+			if c.RestartPolicy != nil && *c.RestartPolicy == v1.ContainerRestartPolicyAlways {
+				names.Insert(c.Name)
+			}
 		}
+		finishTime = latestFinishTime(finishTime, p.Status.InitContainerStatuses, func(status v1.ContainerStatus) bool {
+			return names.Has(status.Name)
+		})
 	}
-	return latestFinishTime(finishTime, p.Status.InitContainerStatuses, func(status v1.ContainerStatus) bool {
-		return names.Has(status.Name)
-	})
+	return finishTime
 }
 
 func latestFinishTime(prevFinishTime *time.Time, cs []v1.ContainerStatus, check func(status v1.ContainerStatus) bool) *time.Time {

pkg/controller/job/backoff_utils_test.go

@@ -23,7 +23,10 @@ import (
 	"github.com/google/go-cmp/cmp"
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	"k8s.io/klog/v2/ktesting"
+	"k8s.io/kubernetes/pkg/features"
 	clocktesting "k8s.io/utils/clock/testing"
 	"k8s.io/utils/ptr"
 )
@@ -200,6 +203,7 @@ func TestNewBackoffRecord(t *testing.T) {
 }
 
 func TestGetFinishedTime(t *testing.T) {
+	featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SidecarContainers, true)
 	defaultTestTime := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
 	defaultTestTimeMinus30s := defaultTestTime.Add(-30 * time.Second)
 	containerRestartPolicyAlways := v1.ContainerRestartPolicyAlways