issue:
  - 48818
  - 48286

# releaseNotes is a markdown listing of any user facing changes. This will appear in the
# release notes.
releaseNotes:
- |

	// PodDeletionsLatency tracks the latency, in seconds, between the time when a taint effect has been activated
	// for the Pod and its deletion.
	PodDeletionsLatency = metrics.NewHistogram(
		&metrics.HistogramOpts{
			Subsystem:      taintEvictionControllerSubsystem,
			Name:           "pod_deletion_duration_seconds",

	node := nodeInfo.Node()

	if !node.Spec.Unschedulable {
		return nil
	}

	// If pod tolerate unschedulable taint, it's also tolerate `node.Spec.Unschedulable`.
	podToleratesUnschedulable := v1helper.TolerationsTolerateTaint(pod.Spec.Tolerations, &v1.Taint{
		Key:    v1.TaintNodeUnschedulable,
		Effect: v1.TaintEffectNoSchedule,
	})
	if !podToleratesUnschedulable {

							Effect:            api.TaintEffectNoExecute,
							TolerationSeconds: &defaultTolerationSeconds,
						},
					},
				},
			},
		},
		{
			description: "pod has tolerations, but none is for taint `not-ready:NoExecute` or `unreachable:NoExecute`, expect add tolerations for `not-ready:NoExecute` and `unreachable:NoExecute`",
			requestedPod: api.Pod{
				Spec: api.PodSpec{
					Tolerations: []api.Toleration{
						{

The days of the digital watch are numbered.  -Tom Stoppard
Nepal premier won't resign.
For every action there is an equal and opposite government program.
His money is twice tainted: 'taint yours and 'taint mine.
There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977
It's a tiny change to the code and not completely disgusting. - Bob Manchek
size:  a.out:  bad magic

)

var (
	markControlPlaneExample = cmdutil.Examples(`
		# Applies control-plane label and taint to the current node, functionally equivalent to what executed by kubeadm init.
		kubeadm init phase mark-control-plane --config config.yaml

		# Applies control-plane label and taint to a specific node
		kubeadm init phase mark-control-plane --node-name myNode
		`)
)

		return
	}
	// We should not see any taint on the node(especially the Not-Ready taint with NoExecute effect).
	if taintutils.TaintExists(node3.Spec.Taints, NotReadyTaintTemplate) || len(node3.Spec.Taints) > 0 {
		t.Errorf("Found taint %v in %v, which should not be present", NotReadyTaintTemplate, node3.Spec.Taints)
	}
}

// TestApplyNoExecuteTaintsToNodesEnqueueTwice ensures we taint every node with NoExecute even if enqueued twice

func AddOrUpdateDaemonPodTolerations(spec *v1.PodSpec) {
	// DaemonSet pods shouldn't be deleted by NodeController in case of node problems.
	// Add infinite toleration for taint notReady:NoExecute here
	// to survive taint-based eviction enforced by NodeController
	// when node turns not ready.
	v1helper.AddOrUpdateTolerationInPodSpec(spec, &v1.Toleration{
		Key:      v1.TaintNodeNotReady,
		Operator: v1.TolerationOpExists,

// TestTaintEvictionControllerGating ensures that it is possible to run taint-manager as a separated controller
// only when the SeparateTaintEvictionController feature is enabled
func TestTaintEvictionControllerGating(t *testing.T) {
	tests := []struct {
		name               string
		enableFeatureGate  bool
		expectInitFuncCall bool
	}{
		{

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

// Package tainteviction contains the logic implementing taint-based eviction
// for Pods running on Nodes with NoExecute taints.