Remove DebugContainers

pkg/features/kube_features.go

@@ -105,12 +105,6 @@ const (
 	// Ability to expand CSI volumes
 	ExpandCSIVolumes utilfeature.Feature = "ExpandCSIVolumes"
 
-	// owner: @verb
-	// alpha: v1.10
-	//
-	// Allows running a "debug container" in a pod namespaces to troubleshoot a running pod.
-	DebugContainers utilfeature.Feature = "DebugContainers"
-
 	// owner: @verb
 	// beta: v1.12
 	//
@@ -445,7 +439,6 @@ var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureS
 	LocalStorageCapacityIsolation:               {Default: true, PreRelease: utilfeature.Beta},
 	HugePages:                                   {Default: true, PreRelease: utilfeature.GA, LockToDefault: true}, // remove in 1.16
 	Sysctls:                                     {Default: true, PreRelease: utilfeature.Beta},
-	DebugContainers:                             {Default: false, PreRelease: utilfeature.Alpha},
 	PodShareProcessNamespace:                    {Default: true, PreRelease: utilfeature.Beta},
 	PodPriority:                                 {Default: true, PreRelease: utilfeature.GA},
 	TaintNodesByCondition:                       {Default: true, PreRelease: utilfeature.Beta},

pkg/kubelet/kuberuntime/labels.go

@@ -20,7 +20,7 @@ import (
 	"encoding/json"
 	"strconv"
 
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	kubetypes "k8s.io/apimachinery/pkg/types"
 	"k8s.io/klog"
 	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"