Merge pull request #81787 from lmdaly/topology-manager-rename-strict-policy

Renaming strict policy to restricted policy

cmd/kubelet/app/options/options.go

@@ -518,7 +518,7 @@ func AddKubeletConfigFlags(mainfs *pflag.FlagSet, c *kubeletconfig.KubeletConfig
 	fs.StringVar(&c.CPUManagerPolicy, "cpu-manager-policy", c.CPUManagerPolicy, "CPU Manager policy to use. Possible values: 'none', 'static'. Default: 'none'")
 	fs.DurationVar(&c.CPUManagerReconcilePeriod.Duration, "cpu-manager-reconcile-period", c.CPUManagerReconcilePeriod.Duration, "<Warning: Alpha feature> CPU Manager reconciliation period. Examples: '10s', or '1m'. If not supplied, defaults to `NodeStatusUpdateFrequency`")
 	fs.Var(cliflag.NewMapStringString(&c.QOSReserved), "qos-reserved", "<Warning: Alpha feature> A set of ResourceName=Percentage (e.g. memory=50%) pairs that describe how pod resource requests are reserved at the QoS level. Currently only memory is supported. Requires the QOSReserved feature gate to be enabled.")
-	fs.StringVar(&c.TopologyManagerPolicy, "topology-manager-policy", c.TopologyManagerPolicy, "Topology Manager policy to use. Possible values: 'none', 'best-effort', 'strict'.")
+	fs.StringVar(&c.TopologyManagerPolicy, "topology-manager-policy", c.TopologyManagerPolicy, "Topology Manager policy to use. Possible values: 'none', 'best-effort', 'restricted'.")
 	fs.DurationVar(&c.RuntimeRequestTimeout.Duration, "runtime-request-timeout", c.RuntimeRequestTimeout.Duration, "Timeout of all runtime requests except long running request - pull, logs, exec and attach. When timeout exceeded, kubelet will cancel the request, throw out an error and retry later.")
 	fs.StringVar(&c.HairpinMode, "hairpin-mode", c.HairpinMode, "How should the kubelet setup hairpin NAT. This allows endpoints of a Service to loadbalance back to themselves if they should try to access their own Service. Valid values are \"promiscuous-bridge\", \"hairpin-veth\" and \"none\".")
 	fs.Int32Var(&c.MaxPods, "max-pods", c.MaxPods, "Number of Pods that can run on this Kubelet.")

pkg/kubelet/apis/config/types.go

@@ -54,9 +54,9 @@ const (
 	// WatchChangeDetectionStrategy is a mode in which kubelet uses
 	// watches to observe changes to objects that are in its interest.
 	WatchChangeDetectionStrategy ResourceChangeDetectionStrategy = "Watch"
-	// StrictTopologyManagerPolicy is a mode in which kubelet only allows
-	// pods with NUMA alignment of CPU and device resources.
-	StrictTopologyManagerPolicy = "strict"
+	// RestrictedTopologyManagerPolicy is a mode in which kubelet only allows
+	// pods with a single NUMA alignment of CPU and device resources.
+	RestrictedTopologyManagerPolicy = "restricted"
 	// BestEffortTopologyManagerPolicy is a mode in which kubelet will favour
 	// pods with NUMA alignment of CPU and device resources.
 	BestEffortTopologyManagerPolicy = "best-effort"

pkg/kubelet/cm/topologymanager/BUILD

@@ -7,7 +7,7 @@ go_library(
         "policy.go",
         "policy_best_effort.go",
         "policy_none.go",
-        "policy_strict.go",
+        "policy_restricted.go",
         "topology_manager.go",
     ],
     importpath = "k8s.io/kubernetes/pkg/kubelet/cm/topologymanager",
@@ -43,7 +43,7 @@ go_test(
         "fake_topology_manager_test.go",
         "policy_best_effort_test.go",
         "policy_none_test.go",
-        "policy_strict_test.go",
+        "policy_restricted_test.go",
         "topology_manager_test.go",
     ],
     embed = [":go_default_library"],

pkg/kubelet/cm/topologymanager/policy_restricted.go

@@ -20,23 +20,23 @@ import (
 	"k8s.io/kubernetes/pkg/kubelet/lifecycle"
 )
 
-type strictPolicy struct{}
+type restrictedPolicy struct{}
 
-var _ Policy = &strictPolicy{}
+var _ Policy = &restrictedPolicy{}
 
-// PolicyStrict policy name.
-const PolicyStrict string = "strict"
+// PolicyRestricted policy name.
+const PolicyRestricted string = "restricted"
 
-// NewStrictPolicy returns strict policy.
-func NewStrictPolicy() Policy {
-	return &strictPolicy{}
+// NewRestrictedPolicy returns restricted policy.
+func NewRestrictedPolicy() Policy {
+	return &restrictedPolicy{}
 }
 
-func (p *strictPolicy) Name() string {
-	return PolicyStrict
+func (p *restrictedPolicy) Name() string {
+	return PolicyRestricted
 }
 
-func (p *strictPolicy) CanAdmitPodResult(admit bool) lifecycle.PodAdmitResult {
+func (p *restrictedPolicy) CanAdmitPodResult(admit bool) lifecycle.PodAdmitResult {
 	if !admit {
 		return lifecycle.PodAdmitResult{
 			Admit:   false,

pkg/kubelet/cm/topologymanager/policy_restricted_test.go

@@ -20,7 +20,7 @@ import (
 	"testing"
 )
 
-func TestPolicyStrictCanAdmitPodResult(t *testing.T) {
+func TestPolicyRestrictedCanAdmitPodResult(t *testing.T) {
 	tcases := []struct {
 		name     string
 		admit    bool
@@ -39,7 +39,7 @@ func TestPolicyStrictCanAdmitPodResult(t *testing.T) {
 	}
 
 	for _, tc := range tcases {
-		policy := NewStrictPolicy()
+		policy := NewRestrictedPolicy()
 		admit := tc.admit
 		result := policy.CanAdmitPodResult(admit)
 

pkg/kubelet/cm/topologymanager/topology_manager.go

@@ -85,8 +85,8 @@ func NewManager(topologyPolicyName string) (Manager, error) {
 	case PolicyBestEffort:
 		policy = NewBestEffortPolicy()
 
-	case PolicyStrict:
-		policy = NewStrictPolicy()
+	case PolicyRestricted:
+		policy = NewRestrictedPolicy()
 
 	default:
 		return nil, fmt.Errorf("unknown policy: \"%s\"", topologyPolicyName)

pkg/kubelet/cm/topologymanager/topology_manager_test.go

@@ -52,9 +52,9 @@ func TestNewManager(t *testing.T) {
 			expectedPolicy: "best-effort",
 		},
 		{
-			description:    "Policy is set to strict",
-			policyName:     "strict",
-			expectedPolicy: "strict",
+			description:    "Policy is set to restricted",
+			policyName:     "restricted",
+			expectedPolicy: "restricted",
 		},
 		{
 			description:   "Policy is set to unknown",
@@ -859,9 +859,9 @@ func TestAdmit(t *testing.T) {
 			expected: true,
 		},
 		{
-			name:     "QOSClass set as Guaranteed. Strict Policy. Preferred Affinity.",
+			name:     "QOSClass set as Guaranteed. Restricted Policy. Preferred Affinity.",
 			qosClass: v1.PodQOSGuaranteed,
-			policy:   NewStrictPolicy(),
+			policy:   NewRestrictedPolicy(),
 			hp: []HintProvider{
 				&mockHintProvider{
 					map[string][]TopologyHint{
@@ -881,9 +881,9 @@ func TestAdmit(t *testing.T) {
 			expected: true,
 		},
 		{
-			name:     "QOSClass set as Guaranteed. Strict Policy. More than one Preferred affinity.",
+			name:     "QOSClass set as Guaranteed. Restricted Policy. More than one Preferred affinity.",
 			qosClass: v1.PodQOSGuaranteed,
-			policy:   NewStrictPolicy(),
+			policy:   NewRestrictedPolicy(),
 			hp: []HintProvider{
 				&mockHintProvider{
 					map[string][]TopologyHint{
@@ -907,9 +907,9 @@ func TestAdmit(t *testing.T) {
 			expected: true,
 		},
 		{
-			name:     "QOSClass set as Guaranteed. Strict Policy. No Preferred affinity.",
+			name:     "QOSClass set as Guaranteed. Restricted Policy. No Preferred affinity.",
 			qosClass: v1.PodQOSGuaranteed,
-			policy:   NewStrictPolicy(),
+			policy:   NewRestrictedPolicy(),
 			hp: []HintProvider{
 				&mockHintProvider{
 					map[string][]TopologyHint{

staging/src/k8s.io/kubelet/config/v1beta1/types.go

@@ -54,12 +54,12 @@ const (
 	// WatchChangeDetectionStrategy is a mode in which kubelet uses
 	// watches to observe changes to objects that are in its interest.
 	WatchChangeDetectionStrategy ResourceChangeDetectionStrategy = "Watch"
-	// StrictTopologyManagerPolicy is a mode in which kubelet only allows
+	// RestrictedTopologyManagerPolicy is a mode in which kubelet only allows
+	// pods with a single NUMA alignment of CPU and device resources.
+	RestrictedTopologyManagerPolicy = "restricted"
+	// BestEffortTopologyManagerPolicy is a mode in which kubelet will favour
 	// pods with NUMA alignment of CPU and device resources.
-	StrictTopologyManagerPolicy = "strict"
-	// PreferredTopologyManagerPolicy is a mode in which kubelet will favour
-	// pods with NUMA alignment of CPU and device resources.
-	PreferredTopologyManagerPolicy = "preferred"
+	BestEffortTopologyManagerPolicy = "best-effort"
 	// NoneTopologyManager Policy is a mode in which kubelet has no knowledge
 	// of NUMA alignment of a pod's CPU and device resources.
 	NoneTopologyManagerPolicy = "none"