Remove CLI flag enable-taint-manager

Signed-off-by: kerthcet <kerthcet@gmail.com>

cmd/kube-controller-manager/app/core.go

@@ -191,7 +191,6 @@ func startNodeLifecycleController(ctx context.Context, controllerContext Control
 		controllerContext.ComponentConfig.NodeLifecycleController.SecondaryNodeEvictionRate,
 		controllerContext.ComponentConfig.NodeLifecycleController.LargeClusterSizeThreshold,
 		controllerContext.ComponentConfig.NodeLifecycleController.UnhealthyZoneThreshold,
-		controllerContext.ComponentConfig.NodeLifecycleController.EnableTaintManager,
 	)
 	if err != nil {
 		return nil, true, err

cmd/kube-controller-manager/app/options/nodelifecyclecontroller.go

@@ -44,8 +44,6 @@ func (o *NodeLifecycleControllerOptions) AddFlags(fs *pflag.FlagSet) {
 	fs.Float32Var(&o.SecondaryNodeEvictionRate, "secondary-node-eviction-rate", 0.01, "Number of nodes per second on which pods are deleted in case of node failure when a zone is unhealthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters. This value is implicitly overridden to 0 if the cluster size is smaller than --large-cluster-size-threshold.")
 	fs.Int32Var(&o.LargeClusterSizeThreshold, "large-cluster-size-threshold", 50, "Number of nodes from which NodeController treats the cluster as large for the eviction logic purposes. --secondary-node-eviction-rate is implicitly overridden to 0 for clusters this size or smaller.")
 	fs.Float32Var(&o.UnhealthyZoneThreshold, "unhealthy-zone-threshold", 0.55, "Fraction of Nodes in a zone which needs to be not Ready (minimum 3) for zone to be treated as unhealthy. ")
-	fs.BoolVar(&o.EnableTaintManager, "enable-taint-manager", o.EnableTaintManager, "If set to true enables NoExecute Taints and will evict all not-tolerating Pod running on Nodes tainted with this kind of Taints.")
-	fs.MarkDeprecated("enable-taint-manager", "This flag is deprecated and it will be removed in 1.27. The taint-manager is enabled by default and will remain implicitly enabled once this flag is removed.")
 	fs.MarkDeprecated("pod-eviction-timeout", "This flag is deprecated and it will be removed in 1.27. Once taint manager is enabled, this flag has no effect.")
 }
 
@@ -55,7 +53,6 @@ func (o *NodeLifecycleControllerOptions) ApplyTo(cfg *nodelifecycleconfig.NodeLi
 		return nil
 	}
 
-	cfg.EnableTaintManager = o.EnableTaintManager
 	cfg.NodeStartupGracePeriod = o.NodeStartupGracePeriod
 	cfg.NodeMonitorGracePeriod = o.NodeMonitorGracePeriod
 	cfg.PodEvictionTimeout = o.PodEvictionTimeout

cmd/kube-controller-manager/app/options/options_test.go

@@ -107,7 +107,6 @@ var args = []string{
 	"--enable-dynamic-provisioning=false",
 	"--enable-garbage-collector=false",
 	"--enable-hostpath-provisioner=true",
-	"--enable-taint-manager=false",
 	"--cluster-signing-duration=10h",
 	"--flex-volume-plugin-dir=/flex-volume-plugin",
 	"--volume-host-cidr-denylist=127.0.0.1/28,feed::/16",
@@ -344,7 +343,6 @@ func TestAddFlags(t *testing.T) {
 		},
 		NodeLifecycleController: &NodeLifecycleControllerOptions{
 			&nodelifecycleconfig.NodeLifecycleControllerConfiguration{
-				EnableTaintManager:        false,
 				NodeEvictionRate:          0.2,
 				SecondaryNodeEvictionRate: 0.05,
 				NodeMonitorGracePeriod:    metav1.Duration{Duration: 30 * time.Second},
@@ -589,7 +587,6 @@ func TestApplyTo(t *testing.T) {
 				NodeCIDRMaskSizeIPv6: 108,
 			},
 			NodeLifecycleController: nodelifecycleconfig.NodeLifecycleControllerConfiguration{
-				EnableTaintManager:        false,
 				NodeEvictionRate:          0.2,
 				SecondaryNodeEvictionRate: 0.05,
 				NodeMonitorGracePeriod:    metav1.Duration{Duration: 30 * time.Second},
@@ -1164,7 +1161,6 @@ func TestValidateControllersOptions(t *testing.T) {
 			expectErrors: false,
 			validate: (&NodeLifecycleControllerOptions{
 				&nodelifecycleconfig.NodeLifecycleControllerConfiguration{
-					EnableTaintManager:        false,
 					NodeEvictionRate:          0.2,
 					SecondaryNodeEvictionRate: 0.05,
 					NodeMonitorGracePeriod:    metav1.Duration{Duration: 30 * time.Second},