starlingx
/
integ
Code Issues Proposed changes

Merge "Identify platform pods based on pod/namespace labels"

This commit is contained in:
Zuul 2024-03-07 20:33:00 +00:00 committed by Gerrit Code Review
parent aff28c17a8 424c00985e
commit a933669618
5 changed files with 1427 additions and 219 deletions
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320
kubernetes/kubernetes-1.24.4/debian/deb_folder/patches/kubelet-cpumanager-introduce-concept-of-isolated-CPU.patch
View File

@ -1,4 +1,4 @@
From ae7fc7b39bfde784340068b388a13a28b4e76398 Mon Sep 17 00:00:00 2001
From 66130d332c561ab95853e1277f5076f6070c3002 Mon Sep 17 00:00:00 2001
From: Gleb Aronsky <gleb.aronsky@windriver.com>
Date: Tue, 25 Jan 2022 13:27:25 -0500
Subject: [PATCH] kubelet cpumanager introduce concept of isolated CPUs
@ -44,13 +44,14 @@ to the right.
Co-authored-by: Jim Gauld <james.gauld@windriver.com>
Co-authored-by: Chris Friesen <chris.friesen@windriver.com>
Signed-off-by: Gleb Aronsky <gleb.aronsky@windriver.com>
Signed-off-by: Kaustubh Dhokte <kaustubh.dhokte@windriver.com>
---
pkg/kubelet/cm/container_manager_linux.go | 1 +
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 +++++++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 14 +++-
pkg/kubelet/cm/cpumanager/policy_static.go | 83 +++++++++++++++++--
.../cm/cpumanager/policy_static_test.go | 50 ++++++++---
5 files changed, 164 insertions(+), 19 deletions(-)
pkg/kubelet/cm/container_manager_linux.go | 1 +
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 +++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 14 +-
pkg/kubelet/cm/cpumanager/policy_static.go | 157 ++++++++++++++--
.../cm/cpumanager/policy_static_test.go | 176 +++++++++++++++++-
5 files changed, 355 insertions(+), 28 deletions(-)
diff --git a/pkg/kubelet/cm/container_manager_linux.go b/pkg/kubelet/cm/container_manager_linux.go
index 0f09f3eb331..770922ca55d 100644
@ -212,18 +213,24 @@ index 2c8349662c4..31e4d0585fb 100644
testCases := []struct {
description string
diff --git a/pkg/kubelet/cm/cpumanager/policy_static.go b/pkg/kubelet/cm/cpumanager/policy_static.go
index a3c93a896df..d6fe69e7165 100644
index 216b6ce9bf8..30c0afaca32 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static.go
@@ -18,6 +18,7 @@ package cpumanager
@@ -17,14 +17,21 @@ limitations under the License.
package cpumanager
import (
+ "context"
"fmt"
+ "strconv"
+ k8sclient "k8s.io/client-go/kubernetes"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
v1 "k8s.io/api/core/v1"
+ "k8s.io/client-go/tools/clientcmd"
"k8s.io/klog/v2"
@@ -25,6 +26,7 @@ import (
v1qos "k8s.io/kubernetes/pkg/apis/core/v1/helper/qos"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
@ -231,7 +238,32 @@ index a3c93a896df..d6fe69e7165 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
)
@@ -101,6 +103,10 @@ type staticPolicy struct {
@@ -39,6 +46,12 @@ const (
ErrorSMTAlignment = "SMTAlignmentError"
)
+type getPodNamespace func(string) (*v1.Namespace, error)
+type buildFromConfigFlag func(masterUrl string, kubeconfigPath string) (*restclient.Config, error)
+
+var varGetNamespaceObject getPodNamespace
+var varBuildConfigFromFlags buildFromConfigFlag
+
// SMTAlignmentError represents an error due to SMT alignment
type SMTAlignmentError struct {
RequestedCPUs int
@@ -53,11 +66,6 @@ func (e SMTAlignmentError) Type() string {
return ErrorSMTAlignment
}
-// Define namespaces used by platform infrastructure pods
-var infraNamespaces = [...]string{
- "kube-system", "armada", "cert-manager", "platform-deployment-manager", "portieris", "vault", "notification", "flux-helm", "metrics-server", "node-feature-discovery", "intel-power", "power-metrics", "sriov-fec-system",
-}
-
// staticPolicy is a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@@ -101,6 +109,10 @@ type staticPolicy struct {
topology *topology.CPUTopology
// set of CPUs that is not available for exclusive assignment
reserved cpuset.CPUSet
@ -242,7 +274,7 @@ index a3c93a896df..d6fe69e7165 100644
// If true, default CPUSet should exclude reserved CPUs
excludeReserved bool
// topology manager reference to get container Topology affinity
@@ -117,7 +123,8 @@ var _ Policy = &staticPolicy{}
@@ -117,7 +129,8 @@ var _ Policy = &staticPolicy{}
// NewStaticPolicy returns a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@ -252,7 +284,7 @@ index a3c93a896df..d6fe69e7165 100644
opts, err := NewStaticPolicyOptions(cpuPolicyOptions)
if err != nil {
return nil, err
@@ -128,6 +135,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -128,6 +141,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
policy := &staticPolicy{
topology: topology,
affinity: affinity,
@ -261,7 +293,7 @@ index a3c93a896df..d6fe69e7165 100644
excludeReserved: excludeReserved,
cpusToReuse: make(map[string]cpuset.CPUSet),
options: opts,
@@ -154,6 +163,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -154,6 +169,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
klog.InfoS("Reserved CPUs not available for exclusive assignment", "reservedSize", reserved.Size(), "reserved", reserved)
policy.reserved = reserved
@ -274,7 +306,7 @@ index a3c93a896df..d6fe69e7165 100644
return policy, nil
}
@@ -187,8 +202,9 @@ func (p *staticPolicy) validateState(s state.State) error {
@@ -187,8 +208,9 @@ func (p *staticPolicy) validateState(s state.State) error {
} else {
s.SetDefaultCPUSet(allCPUs)
}
@ -286,7 +318,17 @@ index a3c93a896df..d6fe69e7165 100644
return nil
}
@@ -278,10 +294,11 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -269,6 +291,9 @@ func (p *staticPolicy) updateCPUsToReuse(pod *v1.Pod, container *v1.Container, c
}
func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Container) error {
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = clientcmd.BuildConfigFromFlags
// Process infra pods before guaranteed pods
if isKubeInfra(pod) {
// Container belongs in reserved pool.
@@ -278,10 +303,11 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
return nil
}
@ -300,7 +342,7 @@ index a3c93a896df..d6fe69e7165 100644
}
s.SetCPUSet(string(pod.UID), container.Name, cpuset)
klog.Infof("[cpumanager] static policy: reserved: AddContainer (namespace: %s, pod UID: %s, pod: %s, container: %s); cpuset=%v", pod.Namespace, string(pod.UID), pod.Name, container.Name, cpuset)
@@ -325,8 +342,34 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -325,8 +351,34 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
}
s.SetCPUSet(string(pod.UID), container.Name, cpuset)
p.updateCPUsToReuse(pod, container, cpuset)
@ -335,10 +377,70 @@ index a3c93a896df..d6fe69e7165 100644
// container belongs in the shared pool (nothing to do; use default cpuset)
return nil
}
@@ -634,3 +677,33 @@ func isKubeInfra(pod *v1.Pod) bool {
}
return false
@@ -625,12 +677,89 @@ func (p *staticPolicy) generateCPUTopologyHints(availableCPUs cpuset.CPUSet, reu
return hints
}
+func getPodNamespaceObject(podNamespaceName string) (*v1.Namespace, error) {
+
+ cfg, err := varBuildConfigFromFlags("", "/etc/kubernetes/kubelet.conf")
+ if err != nil {
+ klog.Error("Failed to build client config from /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ clientset, err := k8sclient.NewForConfig(cfg)
+ if err != nil {
+ klog.Error("Failed to get clientset for KUBECONFIG /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ namespaceObj, err := clientset.CoreV1().Namespaces().Get(context.TODO(), podNamespaceName, metav1.GetOptions{})
+ if err != nil {
+ klog.Error("Error getting namespace object:", err.Error())
+ return nil, err
+ }
+
+ return namespaceObj, nil
+
+}
+
// check if a given pod is in a platform infrastructure namespace
func isKubeInfra(pod *v1.Pod) bool {
- for _, namespace := range infraNamespaces {
- if namespace == pod.Namespace {
- return true
- }
+
+ podName := pod.GetName()
+ podNamespaceName := pod.GetNamespace()
+
+ klog.InfoS("Checking pod ", podName , " for label 'app.starlingx.io/component=platform'.")
+ podLabels := pod.GetLabels()
+ val, ok := podLabels["app.starlingx.io/component"]
+ if (ok && val == "platform") {
+ klog.InfoS("Pod ", podName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
+ }
+
+ klog.InfoS("Pod ", pod.GetName(), " does not have 'app.starlingx.io/component=platform' label. Checking its namespace information...")
+
+ namespaceObj, err := varGetNamespaceObject(podNamespaceName)
+ if err != nil {
+ return false
+ }
+
+ namespaceLabels := namespaceObj.GetLabels()
+ val, ok = namespaceLabels["app.starlingx.io/component"]
+ if ok && val == "platform" {
+ klog.InfoS("For pod: ", podName, ", its Namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
}
+
+ klog.InfoS("Neither pod ", podName, " nor its namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Not assigning platform CPUs.")
return false
+
+}
+
+// get the isolated CPUs (if any) from the devices associated with a specific container
+func (p *staticPolicy) podIsolCPUs(pod *v1.Pod, container *v1.Container) cpuset.CPUSet {
@ -368,12 +470,24 @@ index a3c93a896df..d6fe69e7165 100644
+ }
+ }
+ return cpuSet
+}
}
diff --git a/pkg/kubelet/cm/cpumanager/policy_static_test.go b/pkg/kubelet/cm/cpumanager/policy_static_test.go
index d4b4b790210..ecd3e9598d0 100644
index 7938f787a57..fa3e99fb2bb 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static_test.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static_test.go
@@ -25,6 +25,7 @@ import (
@@ -17,14 +17,19 @@ limitations under the License.
package cpumanager
import (
+ "errors"
"fmt"
"reflect"
"testing"
v1 "k8s.io/api/core/v1"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
+
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
@ -381,7 +495,7 @@ index d4b4b790210..ecd3e9598d0 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
)
@@ -65,8 +66,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
@@ -65,8 +70,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
}
func TestStaticPolicyName(t *testing.T) {
@ -392,7 +506,7 @@ index d4b4b790210..ecd3e9598d0 100644
policyName := policy.Name()
if policyName != "static" {
@@ -76,6 +78,7 @@ func TestStaticPolicyName(t *testing.T) {
@@ -76,6 +82,7 @@ func TestStaticPolicyName(t *testing.T) {
}
func TestStaticPolicyStart(t *testing.T) {
@ -400,7 +514,7 @@ index d4b4b790210..ecd3e9598d0 100644
testCases := []staticPolicyTest{
{
description: "non-corrupted state",
@@ -151,7 +154,7 @@ func TestStaticPolicyStart(t *testing.T) {
@@ -151,7 +158,7 @@ func TestStaticPolicyStart(t *testing.T) {
}
for _, testCase := range testCases {
t.Run(testCase.description, func(t *testing.T) {
@ -409,7 +523,7 @@ index d4b4b790210..ecd3e9598d0 100644
policy := p.(*staticPolicy)
st := &mockState{
@@ -199,7 +202,7 @@ func TestStaticPolicyAdd(t *testing.T) {
@@ -199,7 +206,7 @@ func TestStaticPolicyAdd(t *testing.T) {
largeTopoCPUSet := largeTopoBuilder.Result()
largeTopoSock0CPUSet := largeTopoSock0Builder.Result()
largeTopoSock1CPUSet := largeTopoSock1Builder.Result()
@ -418,7 +532,7 @@ index d4b4b790210..ecd3e9598d0 100644
// these are the cases which must behave the same regardless the policy options.
// So we will permutate the options to ensure this holds true.
optionsInsensitiveTestCases := []staticPolicyTest{
@@ -529,8 +532,9 @@ func TestStaticPolicyAdd(t *testing.T) {
@@ -529,8 +536,9 @@ func TestStaticPolicyAdd(t *testing.T) {
}
func runStaticPolicyTestCase(t *testing.T, testCase staticPolicyTest) {
@ -429,7 +543,7 @@ index d4b4b790210..ecd3e9598d0 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -596,7 +600,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -596,7 +604,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
}
for _, testCase := range testCases {
@ -438,7 +552,7 @@ index d4b4b790210..ecd3e9598d0 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -629,6 +633,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -629,6 +637,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
func TestStaticPolicyRemove(t *testing.T) {
excludeReserved := false
@ -446,7 +560,7 @@ index d4b4b790210..ecd3e9598d0 100644
testCases := []staticPolicyTest{
{
description: "SingleSocketHT, DeAllocOneContainer",
@@ -710,6 +715,7 @@ func TestStaticPolicyRemove(t *testing.T) {
@@ -710,6 +719,7 @@ func TestStaticPolicyRemove(t *testing.T) {
func TestTopologyAwareAllocateCPUs(t *testing.T) {
excludeReserved := false
@ -454,7 +568,7 @@ index d4b4b790210..ecd3e9598d0 100644
testCases := []struct {
description string
topo *topology.CPUTopology
@@ -778,7 +784,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
@@ -778,7 +788,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
},
}
for _, tc := range testCases {
@ -464,7 +578,7 @@ index d4b4b790210..ecd3e9598d0 100644
policy := p.(*staticPolicy)
st := &mockState{
assignments: tc.stAssignments,
@@ -811,6 +818,7 @@ type staticPolicyTestWithResvList struct {
@@ -811,6 +822,7 @@ type staticPolicyTestWithResvList struct {
topo *topology.CPUTopology
numReservedCPUs int
reserved cpuset.CPUSet
@ -472,7 +586,7 @@ index d4b4b790210..ecd3e9598d0 100644
stAssignments state.ContainerCPUAssignments
stDefaultCPUSet cpuset.CPUSet
pod *v1.Pod
@@ -821,6 +829,8 @@ type staticPolicyTestWithResvList struct {
@@ -821,6 +833,8 @@ type staticPolicyTestWithResvList struct {
}
func TestStaticPolicyStartWithResvList(t *testing.T) {
@ -481,7 +595,7 @@ index d4b4b790210..ecd3e9598d0 100644
testCases := []staticPolicyTestWithResvList{
{
description: "empty cpuset",
@@ -850,11 +860,9 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
@@ -850,11 +864,9 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
expNewErr: fmt.Errorf("[cpumanager] unable to reserve the required amount of CPUs (size of 0-1 did not equal 1)"),
},
}
@ -494,7 +608,7 @@ index d4b4b790210..ecd3e9598d0 100644
if !reflect.DeepEqual(err, testCase.expNewErr) {
t.Errorf("StaticPolicy Start() error (%v). expected error: %v but got: %v",
testCase.description, testCase.expNewErr, err)
@@ -894,6 +902,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -894,6 +906,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 1,
reserved: cpuset.NewCPUSet(0),
@ -502,7 +616,7 @@ index d4b4b790210..ecd3e9598d0 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(1, 2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "8000m", "8000m"),
@@ -906,6 +915,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -906,6 +919,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.NewCPUSet(0, 1),
@ -510,7 +624,7 @@ index d4b4b790210..ecd3e9598d0 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "1000m", "1000m"),
@@ -918,6 +928,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -918,6 +932,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.NewCPUSet(0, 1),
@ -518,7 +632,7 @@ index d4b4b790210..ecd3e9598d0 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.NewCPUSet(2, 3, 6, 7),
@@ -934,6 +945,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -934,6 +949,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.NewCPUSet(0, 1),
@ -526,7 +640,7 @@ index d4b4b790210..ecd3e9598d0 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.NewCPUSet(2, 3, 6, 7),
@@ -945,11 +957,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -945,11 +961,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
expCPUAlloc: true,
expCSet: cpuset.NewCPUSet(0, 1),
},
@ -557,6 +671,132 @@ index d4b4b790210..ecd3e9598d0 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -1075,3 +1109,125 @@ func TestStaticPolicyOptions(t *testing.T) {
})
}
}
+
+func makePodWithLabels(podLabels map[string]string) *v1.Pod {
+ return &v1.Pod{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-pod",
+ Namespace: "test-namespace",
+ Labels: podLabels,
+ },
+ }
+}
+
+func fakeBuildConfigFromFlags(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ return &restclient.Config{}, nil
+}
+
+func fakeBuildConfigFromFlagsError(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ errString := fmt.Sprintf("%s file not found", kubeconfigPath)
+ return nil, errors.New(errString)
+
+}
+
+func getFakeInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "app.starlingx.io/component": "platform",
+ },
+ }}, nil
+}
+
+func getFakeNonInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "fake": "label",
+ }}}, nil
+
+}
+
+type kubeInfraPodTestCase struct {
+ description string
+ pod *v1.Pod
+ namespaceFunc getPodNamespace
+ expectedValue bool
+}
+
+func TestKubeInfraPod(t *testing.T) {
+ testCases := []kubeInfraPodTestCase{
+ {
+ description: "Pod with platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "app.starlingx.io/component": "platform",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: true,
+
+ },
+ {
+ description: "Pod without platform label and namespace with platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "label",
+ }),
+ namespaceFunc: getFakeInfraPodNamespace,
+ expectedValue: true,
+ },
+ {
+ description: "Pod without platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ },
+
+ }
+
+ for _, testCase := range testCases {
+ t.Run(testCase.description, func(t *testing.T) {
+
+ varGetNamespaceObject = testCase.namespaceFunc
+ varBuildConfigFromFlags = fakeBuildConfigFromFlags
+ gotValue := isKubeInfra(testCase.pod)
+
+ if gotValue != testCase.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ testCase.description, testCase.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", testCase.description)
+ }
+
+ })
+ }
+
+ test := kubeInfraPodTestCase{
+ description: "Failure reading kubeconfig file",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ }
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = fakeBuildConfigFromFlagsError
+
+ gotValue := isKubeInfra(test.pod)
+
+ if gotValue != test.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ test.description, test.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", test.description)
+ }
+
+}
+
--
2.25.1

329
kubernetes/kubernetes-1.25.3/debian/deb_folder/patches/kubelet-cpumanager-introduce-concept-of-isolated-CPU.patch
View File

@ -1,4 +1,4 @@
From e8608eb7c300b6e0503885a4848fafc75f20d909 Mon Sep 17 00:00:00 2001
From 27f0c5ba4cdd5f8f850fa4a5b110a39eaba7cd65 Mon Sep 17 00:00:00 2001
From: Ramesh Kumar Sivanandam <rameshkumar.sivanandam@windriver.com>
Date: Mon, 7 Nov 2022 13:33:03 -0500
Subject: [PATCH] kubelet cpumanager introduce concept of isolated CPUs
@ -45,13 +45,14 @@ Co-authored-by: Jim Gauld <james.gauld@windriver.com>
Co-authored-by: Chris Friesen <chris.friesen@windriver.com>
Signed-off-by: Gleb Aronsky <gleb.aronsky@windriver.com>
Signed-off-by: Ramesh Kumar Sivanandam <rameshkumar.sivanandam@windriver.com>
Signed-off-by: Kaustubh Dhokte <kaustubh.dhokte@windriver.com>
---
pkg/kubelet/cm/container_manager_linux.go | 1 +
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 +++++++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 20 ++++-
pkg/kubelet/cm/cpumanager/policy_static.go | 83 +++++++++++++++++--
.../cm/cpumanager/policy_static_test.go | 53 +++++++++---
5 files changed, 172 insertions(+), 20 deletions(-)
pkg/kubelet/cm/container_manager_linux.go | 1 +
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 +++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 20 +-
pkg/kubelet/cm/cpumanager/policy_static.go | 158 ++++++++++++++--
.../cm/cpumanager/policy_static_test.go | 177 +++++++++++++++++-
5 files changed, 362 insertions(+), 29 deletions(-)
diff --git a/pkg/kubelet/cm/container_manager_linux.go b/pkg/kubelet/cm/container_manager_linux.go
index 44c8cda6c40..a3f92b23c69 100644
@ -242,18 +243,24 @@ index d553b182e0b..57f3f9a1c97 100644
t.Errorf("Expected error, but NewManager succeeded")
}
diff --git a/pkg/kubelet/cm/cpumanager/policy_static.go b/pkg/kubelet/cm/cpumanager/policy_static.go
index 341e9f3dffe..802e289bfaf 100644
index 4fc96303622..4631841fe01 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static.go
@@ -18,6 +18,7 @@ package cpumanager
@@ -17,14 +17,21 @@ limitations under the License.
package cpumanager
import (
+ "context"
"fmt"
+ "strconv"
+ k8sclient "k8s.io/client-go/kubernetes"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
v1 "k8s.io/api/core/v1"
+ "k8s.io/client-go/tools/clientcmd"
"k8s.io/klog/v2"
@@ -25,6 +26,7 @@ import (
v1qos "k8s.io/kubernetes/pkg/apis/core/v1/helper/qos"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
@ -261,7 +268,33 @@ index 341e9f3dffe..802e289bfaf 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
)
@@ -101,6 +103,10 @@ type staticPolicy struct {
@@ -39,6 +46,13 @@ const (
ErrorSMTAlignment = "SMTAlignmentError"
)
+type getPodNamespace func(string) (*v1.Namespace, error)
+type buildFromConfigFlag func(masterUrl string, kubeconfigPath string) (*restclient.Config, error)
+
+var varGetNamespaceObject getPodNamespace
+var varBuildConfigFromFlags buildFromConfigFlag
+
+
// SMTAlignmentError represents an error due to SMT alignment
type SMTAlignmentError struct {
RequestedCPUs int
@@ -53,11 +67,6 @@ func (e SMTAlignmentError) Type() string {
return ErrorSMTAlignment
}
-// Define namespaces used by platform infrastructure pods
-var infraNamespaces = [...]string{
- "kube-system", "armada", "cert-manager", "platform-deployment-manager", "portieris", "vault", "notification", "flux-helm", "metrics-server", "node-feature-discovery", "intel-power", "power-metrics", "sriov-fec-system",
-}
-
// staticPolicy is a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@@ -101,6 +110,10 @@ type staticPolicy struct {
topology *topology.CPUTopology
// set of CPUs that is not available for exclusive assignment
reserved cpuset.CPUSet
@ -272,7 +305,7 @@ index 341e9f3dffe..802e289bfaf 100644
// If true, default CPUSet should exclude reserved CPUs
excludeReserved bool
// topology manager reference to get container Topology affinity
@@ -117,7 +123,8 @@ var _ Policy = &staticPolicy{}
@@ -117,7 +130,8 @@ var _ Policy = &staticPolicy{}
// NewStaticPolicy returns a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@ -282,7 +315,7 @@ index 341e9f3dffe..802e289bfaf 100644
opts, err := NewStaticPolicyOptions(cpuPolicyOptions)
if err != nil {
return nil, err
@@ -132,6 +139,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -132,6 +146,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
policy := &staticPolicy{
topology: topology,
affinity: affinity,
@ -291,7 +324,7 @@ index 341e9f3dffe..802e289bfaf 100644
excludeReserved: excludeReserved,
cpusToReuse: make(map[string]cpuset.CPUSet),
options: opts,
@@ -158,6 +167,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -158,6 +174,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
klog.InfoS("Reserved CPUs not available for exclusive assignment", "reservedSize", reserved.Size(), "reserved", reserved)
policy.reserved = reserved
@ -304,7 +337,7 @@ index 341e9f3dffe..802e289bfaf 100644
return policy, nil
}
@@ -191,8 +206,9 @@ func (p *staticPolicy) validateState(s state.State) error {
@@ -191,8 +213,9 @@ func (p *staticPolicy) validateState(s state.State) error {
} else {
s.SetDefaultCPUSet(allCPUs)
}
@ -316,7 +349,17 @@ index 341e9f3dffe..802e289bfaf 100644
return nil
}
@@ -282,10 +298,11 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -273,6 +296,9 @@ func (p *staticPolicy) updateCPUsToReuse(pod *v1.Pod, container *v1.Container, c
}
func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Container) error {
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = clientcmd.BuildConfigFromFlags
// Process infra pods before guaranteed pods
if isKubeInfra(pod) {
// Container belongs in reserved pool.
@@ -282,10 +308,11 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
return nil
}
@ -330,7 +373,7 @@ index 341e9f3dffe..802e289bfaf 100644
}
s.SetCPUSet(string(pod.UID), container.Name, cpuset)
klog.Infof("[cpumanager] static policy: reserved: AddContainer (namespace: %s, pod UID: %s, pod: %s, container: %s); cpuset=%v", pod.Namespace, string(pod.UID), pod.Name, container.Name, cpuset)
@@ -329,8 +346,34 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -329,8 +356,34 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
}
s.SetCPUSet(string(pod.UID), container.Name, cpuset)
p.updateCPUsToReuse(pod, container, cpuset)
@ -365,10 +408,71 @@ index 341e9f3dffe..802e289bfaf 100644
// container belongs in the shared pool (nothing to do; use default cpuset)
return nil
}
@@ -640,6 +683,36 @@ func isKubeInfra(pod *v1.Pod) bool {
return false
@@ -630,14 +683,91 @@ func (p *staticPolicy) generateCPUTopologyHints(availableCPUs cpuset.CPUSet, reu
return hints
}
+func getPodNamespaceObject(podNamespaceName string) (*v1.Namespace, error) {
+
+ cfg, err := varBuildConfigFromFlags("", "/etc/kubernetes/kubelet.conf")
+ if err != nil {
+ klog.Error("Failed to build client config from /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ clientset, err := k8sclient.NewForConfig(cfg)
+ if err != nil {
+ klog.Error("Failed to get clientset for KUBECONFIG /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ namespaceObj, err := clientset.CoreV1().Namespaces().Get(context.TODO(), podNamespaceName, metav1.GetOptions{})
+ if err != nil {
+ klog.Error("Error getting namespace object:", err.Error())
+ return nil, err
+ }
+
+ return namespaceObj, nil
+
+}
+
// check if a given pod is in a platform infrastructure namespace
func isKubeInfra(pod *v1.Pod) bool {
- for _, namespace := range infraNamespaces {
- if namespace == pod.Namespace {
- return true
- }
+
+ podName := pod.GetName()
+ podNamespaceName := pod.GetNamespace()
+
+ klog.InfoS("Checking pod ", podName , " for label 'app.starlingx.io/component=platform'.")
+ podLabels := pod.GetLabels()
+ val, ok := podLabels["app.starlingx.io/component"]
+ if (ok && val == "platform") {
+ klog.InfoS("Pod ", podName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
}
+
+ klog.InfoS("Pod ", pod.GetName(), " does not have 'app.starlingx.io/component=platform' label. Checking its namespace information...")
+
+ namespaceObj, err := varGetNamespaceObject(podNamespaceName)
+ if err != nil {
+ return false
+ }
+
+ namespaceLabels := namespaceObj.GetLabels()
+ val, ok = namespaceLabels["app.starlingx.io/component"]
+ if ok && val == "platform" {
+ klog.InfoS("For pod: ", podName, ", its Namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
+ }
+
+ klog.InfoS("Neither pod ", podName, " nor its namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Not assigning platform CPUs.")
return false
+
+}
+
+// get the isolated CPUs (if any) from the devices associated with a specific container
+func (p *staticPolicy) podIsolCPUs(pod *v1.Pod, container *v1.Container) cpuset.CPUSet {
+ // NOTE: This is required for TestStaticPolicyAdd() since makePod() does
@ -397,16 +501,28 @@ index 341e9f3dffe..802e289bfaf 100644
+ }
+ }
+ return cpuSet
+}
+
}
// isHintSocketAligned function return true if numa nodes in hint are socket aligned.
func (p *staticPolicy) isHintSocketAligned(hint topologymanager.TopologyHint, minAffinitySize int) bool {
numaNodesBitMask := hint.NUMANodeAffinity.GetBits()
diff --git a/pkg/kubelet/cm/cpumanager/policy_static_test.go b/pkg/kubelet/cm/cpumanager/policy_static_test.go
index 414e5ce144c..1c43df3b85f 100644
index 414e5ce144c..b6aad48576f 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static_test.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static_test.go
@@ -28,6 +28,7 @@ import (
@@ -17,10 +17,13 @@ limitations under the License.
package cpumanager
import (
+ "errors"
"fmt"
"reflect"
"testing"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
v1 "k8s.io/api/core/v1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
featuregatetesting "k8s.io/component-base/featuregate/testing"
@@ -28,6 +31,7 @@ import (
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
@ -414,7 +530,7 @@ index 414e5ce144c..1c43df3b85f 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
)
@@ -69,8 +70,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
@@ -69,8 +73,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
}
func TestStaticPolicyName(t *testing.T) {
@ -425,7 +541,7 @@ index 414e5ce144c..1c43df3b85f 100644
policyName := policy.Name()
if policyName != "static" {
@@ -80,6 +82,7 @@ func TestStaticPolicyName(t *testing.T) {
@@ -80,6 +85,7 @@ func TestStaticPolicyName(t *testing.T) {
}
func TestStaticPolicyStart(t *testing.T) {
@ -433,7 +549,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []staticPolicyTest{
{
description: "non-corrupted state",
@@ -155,7 +158,7 @@ func TestStaticPolicyStart(t *testing.T) {
@@ -155,7 +161,7 @@ func TestStaticPolicyStart(t *testing.T) {
}
for _, testCase := range testCases {
t.Run(testCase.description, func(t *testing.T) {
@ -442,7 +558,7 @@ index 414e5ce144c..1c43df3b85f 100644
policy := p.(*staticPolicy)
st := &mockState{
@@ -203,7 +206,6 @@ func TestStaticPolicyAdd(t *testing.T) {
@@ -203,7 +209,6 @@ func TestStaticPolicyAdd(t *testing.T) {
largeTopoCPUSet := largeTopoBuilder.Result()
largeTopoSock0CPUSet := largeTopoSock0Builder.Result()
largeTopoSock1CPUSet := largeTopoSock1Builder.Result()
@ -450,7 +566,7 @@ index 414e5ce144c..1c43df3b85f 100644
// these are the cases which must behave the same regardless the policy options.
// So we will permutate the options to ensure this holds true.
@@ -577,8 +579,10 @@ func runStaticPolicyTestCase(t *testing.T, testCase staticPolicyTest) {
@@ -577,8 +582,10 @@ func runStaticPolicyTestCase(t *testing.T, testCase staticPolicyTest) {
if testCase.topologyHint != nil {
tm = topologymanager.NewFakeManagerWithHint(testCase.topologyHint)
}
@ -462,7 +578,7 @@ index 414e5ce144c..1c43df3b85f 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -625,6 +629,8 @@ func runStaticPolicyTestCaseWithFeatureGate(t *testing.T, testCase staticPolicyT
@@ -625,6 +632,8 @@ func runStaticPolicyTestCaseWithFeatureGate(t *testing.T, testCase staticPolicyT
}
func TestStaticPolicyReuseCPUs(t *testing.T) {
@ -471,7 +587,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []struct {
staticPolicyTest
expCSetAfterAlloc cpuset.CPUSet
@@ -649,7 +655,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -649,7 +658,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
}
for _, testCase := range testCases {
@ -480,7 +596,7 @@ index 414e5ce144c..1c43df3b85f 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -682,6 +688,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -682,6 +691,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
func TestStaticPolicyRemove(t *testing.T) {
excludeReserved := false
@ -488,7 +604,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []staticPolicyTest{
{
description: "SingleSocketHT, DeAllocOneContainer",
@@ -740,7 +747,7 @@ func TestStaticPolicyRemove(t *testing.T) {
@@ -740,7 +750,7 @@ func TestStaticPolicyRemove(t *testing.T) {
}
for _, testCase := range testCases {
@ -497,7 +613,7 @@ index 414e5ce144c..1c43df3b85f 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -763,6 +770,7 @@ func TestStaticPolicyRemove(t *testing.T) {
@@ -763,6 +773,7 @@ func TestStaticPolicyRemove(t *testing.T) {
func TestTopologyAwareAllocateCPUs(t *testing.T) {
excludeReserved := false
@ -505,7 +621,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []struct {
description string
topo *topology.CPUTopology
@@ -831,7 +839,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
@@ -831,7 +842,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
},
}
for _, tc := range testCases {
@ -515,7 +631,7 @@ index 414e5ce144c..1c43df3b85f 100644
policy := p.(*staticPolicy)
st := &mockState{
assignments: tc.stAssignments,
@@ -864,6 +873,7 @@ type staticPolicyTestWithResvList struct {
@@ -864,6 +876,7 @@ type staticPolicyTestWithResvList struct {
topo *topology.CPUTopology
numReservedCPUs int
reserved cpuset.CPUSet
@ -523,7 +639,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments state.ContainerCPUAssignments
stDefaultCPUSet cpuset.CPUSet
pod *v1.Pod
@@ -874,6 +884,8 @@ type staticPolicyTestWithResvList struct {
@@ -874,6 +887,8 @@ type staticPolicyTestWithResvList struct {
}
func TestStaticPolicyStartWithResvList(t *testing.T) {
@ -532,7 +648,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []staticPolicyTestWithResvList{
{
description: "empty cpuset",
@@ -903,11 +915,10 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
@@ -903,11 +918,10 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
expNewErr: fmt.Errorf("[cpumanager] unable to reserve the required amount of CPUs (size of 0-1 did not equal 1)"),
},
}
@ -545,7 +661,7 @@ index 414e5ce144c..1c43df3b85f 100644
if !reflect.DeepEqual(err, testCase.expNewErr) {
t.Errorf("StaticPolicy Start() error (%v). expected error: %v but got: %v",
testCase.description, testCase.expNewErr, err)
@@ -947,6 +958,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -947,6 +961,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 1,
reserved: cpuset.NewCPUSet(0),
@ -553,7 +669,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(1, 2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "8000m", "8000m"),
@@ -959,6 +971,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -959,6 +974,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.NewCPUSet(0, 1),
@ -561,7 +677,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "1000m", "1000m"),
@@ -971,6 +984,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -971,6 +987,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.NewCPUSet(0, 1),
@ -569,7 +685,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.NewCPUSet(2, 3, 6, 7),
@@ -987,6 +1001,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -987,6 +1004,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.NewCPUSet(0, 1),
@ -577,7 +693,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.NewCPUSet(2, 3, 6, 7),
@@ -998,11 +1013,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -998,11 +1016,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
expCPUAlloc: true,
expCSet: cpuset.NewCPUSet(0, 1),
},
@ -608,6 +724,131 @@ index 414e5ce144c..1c43df3b85f 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -1128,3 +1164,124 @@ func TestStaticPolicyOptions(t *testing.T) {
})
}
}
+
+func makePodWithLabels(podLabels map[string]string) *v1.Pod {
+ return &v1.Pod{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-pod",
+ Namespace: "test-namespace",
+ Labels: podLabels,
+ },
+ }
+}
+
+func fakeBuildConfigFromFlags(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ return &restclient.Config{}, nil
+}
+
+func fakeBuildConfigFromFlagsError(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ errString := fmt.Sprintf("%s file not found", kubeconfigPath)
+ return nil, errors.New(errString)
+
+}
+
+func getFakeInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "app.starlingx.io/component": "platform",
+ },
+ }}, nil
+}
+
+func getFakeNonInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "fake": "label",
+ }}}, nil
+
+}
+
+type kubeInfraPodTestCase struct {
+ description string
+ pod *v1.Pod
+ namespaceFunc getPodNamespace
+ expectedValue bool
+}
+
+func TestKubeInfraPod(t *testing.T) {
+ testCases := []kubeInfraPodTestCase{
+ {
+ description: "Pod with platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "app.starlingx.io/component": "platform",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: true,
+
+ },
+ {
+ description: "Pod without platform label and namespace with platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "label",
+ }),
+ namespaceFunc: getFakeInfraPodNamespace,
+ expectedValue: true,
+ },
+ {
+ description: "Pod without platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ },
+
+ }
+
+ for _, testCase := range testCases {
+ t.Run(testCase.description, func(t *testing.T) {
+
+ varGetNamespaceObject = testCase.namespaceFunc
+ varBuildConfigFromFlags = fakeBuildConfigFromFlags
+ gotValue := isKubeInfra(testCase.pod)
+
+ if gotValue != testCase.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ testCase.description, testCase.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", testCase.description)
+ }
+
+ })
+ }
+
+ test := kubeInfraPodTestCase{
+ description: "Failure reading kubeconfig file",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ }
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = fakeBuildConfigFromFlagsError
+
+ gotValue := isKubeInfra(test.pod)
+
+ if gotValue != test.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ test.description, test.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", test.description)
+ }
+
+}
--
2.25.1

334
kubernetes/kubernetes-1.26.1/debian/deb_folder/patches/kubelet-cpumanager-introduce-concept-of-isolated-CPU.patch
View File

@ -1,7 +1,7 @@
From ed1f8c6a04e7fed096eaae5081c2b5e0c3bc6fed Mon Sep 17 00:00:00 2001
From 36170864cc9ebb2183e6301cb745e49238d21397 Mon Sep 17 00:00:00 2001
From: Ramesh Kumar Sivanandam <rameshkumar.sivanandam@windriver.com>
Date: Mon, 7 Nov 2022 13:33:03 -0500
Subject: [PATCH 08/10] kubelet cpumanager introduce concept of isolated CPUs
Subject: [PATCH] kubelet cpumanager introduce concept of isolated CPUs
This introduces the concept of "isolated CPUs", which are CPUs that
have been isolated at the kernel level via the "isolcpus" kernel boot
@ -46,14 +46,15 @@ Co-authored-by: Chris Friesen <chris.friesen@windriver.com>
Signed-off-by: Gleb Aronsky <gleb.aronsky@windriver.com>
Signed-off-by: Ramesh Kumar Sivanandam <rameshkumar.sivanandam@windriver.com>
Signed-off-by: Sachin Gopala Krishna <saching.krishna@windriver.com>
Signed-off-by: Kaustubh Dhokte <kaustubh.dhokte@windriver.com>
---
pkg/kubelet/cm/container_manager_linux.go | 1 +
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 ++++++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 23 ++++-
pkg/kubelet/cm/cpumanager/policy_static.go | 83 ++++++++++++++--
.../cm/cpumanager/policy_static_test.go | 53 ++++++++--
pkg/kubelet/cm/devicemanager/manager_stub.go | 99 +++++++++++++++++++
6 files changed, 273 insertions(+), 21 deletions(-)
pkg/kubelet/cm/container_manager_linux.go | 1 +
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 +++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 23 ++-
pkg/kubelet/cm/cpumanager/policy_static.go | 157 +++++++++++++--
.../cm/cpumanager/policy_static_test.go | 178 +++++++++++++++++-
pkg/kubelet/cm/devicemanager/manager_stub.go | 99 ++++++++++
6 files changed, 463 insertions(+), 30 deletions(-)
create mode 100644 pkg/kubelet/cm/devicemanager/manager_stub.go
diff --git a/pkg/kubelet/cm/container_manager_linux.go b/pkg/kubelet/cm/container_manager_linux.go
@ -264,18 +265,25 @@ index e7c74453472..78b4ada1a73 100644
testCases := []struct {
diff --git a/pkg/kubelet/cm/cpumanager/policy_static.go b/pkg/kubelet/cm/cpumanager/policy_static.go
index 180d018565c..8d18ce65309 100644
index 26eb400cee6..13bcad5a531 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static.go
@@ -18,6 +18,7 @@ package cpumanager
@@ -17,15 +17,22 @@ limitations under the License.
package cpumanager
import (
+ "context"
"fmt"
+ "strconv"
+ k8sclient "k8s.io/client-go/kubernetes"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
v1 "k8s.io/api/core/v1"
+ "k8s.io/client-go/tools/clientcmd"
"k8s.io/klog/v2"
@@ -26,6 +27,7 @@ import (
v1qos "k8s.io/kubernetes/pkg/apis/core/v1/helper/qos"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
@ -283,7 +291,32 @@ index 180d018565c..8d18ce65309 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
"k8s.io/kubernetes/pkg/kubelet/metrics"
@@ -104,6 +106,10 @@ type staticPolicy struct {
@@ -41,6 +48,12 @@ const (
ErrorSMTAlignment = "SMTAlignmentError"
)
+type getPodNamespace func(string) (*v1.Namespace, error)
+type buildFromConfigFlag func(masterUrl string, kubeconfigPath string) (*restclient.Config, error)
+
+var varGetNamespaceObject getPodNamespace
+var varBuildConfigFromFlags buildFromConfigFlag
+
// SMTAlignmentError represents an error due to SMT alignment
type SMTAlignmentError struct {
RequestedCPUs int
@@ -56,11 +69,6 @@ func (e SMTAlignmentError) Type() string {
return ErrorSMTAlignment
}
-// Define namespaces used by platform infrastructure pods
-var infraNamespaces = [...]string{
- "kube-system", "armada", "cert-manager", "platform-deployment-manager", "portieris", "vault", "notification", "flux-helm", "metrics-server", "node-feature-discovery", "intel-power", "power-metrics", "sriov-fec-system",
-}
-
// staticPolicy is a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@@ -104,6 +112,10 @@ type staticPolicy struct {
topology *topology.CPUTopology
// set of CPUs that is not available for exclusive assignment
reserved cpuset.CPUSet
@ -294,7 +327,7 @@ index 180d018565c..8d18ce65309 100644
// If true, default CPUSet should exclude reserved CPUs
excludeReserved bool
// topology manager reference to get container Topology affinity
@@ -120,7 +126,8 @@ var _ Policy = &staticPolicy{}
@@ -120,7 +132,8 @@ var _ Policy = &staticPolicy{}
// NewStaticPolicy returns a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@ -304,7 +337,7 @@ index 180d018565c..8d18ce65309 100644
opts, err := NewStaticPolicyOptions(cpuPolicyOptions)
if err != nil {
return nil, err
@@ -135,6 +142,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -135,6 +148,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
policy := &staticPolicy{
topology: topology,
affinity: affinity,
@ -313,7 +346,7 @@ index 180d018565c..8d18ce65309 100644
excludeReserved: excludeReserved,
cpusToReuse: make(map[string]cpuset.CPUSet),
options: opts,
@@ -161,6 +170,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -161,6 +176,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
klog.InfoS("Reserved CPUs not available for exclusive assignment", "reservedSize", reserved.Size(), "reserved", reserved)
policy.reserved = reserved
@ -326,7 +359,7 @@ index 180d018565c..8d18ce65309 100644
return policy, nil
}
@@ -194,8 +209,9 @@ func (p *staticPolicy) validateState(s state.State) error {
@@ -194,8 +215,9 @@ func (p *staticPolicy) validateState(s state.State) error {
} else {
s.SetDefaultCPUSet(allCPUs)
}
@ -338,7 +371,17 @@ index 180d018565c..8d18ce65309 100644
return nil
}
@@ -290,16 +306,39 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -281,6 +303,9 @@ func (p *staticPolicy) updateCPUsToReuse(pod *v1.Pod, container *v1.Container, c
}
func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Container) (rerr error) {
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = clientcmd.BuildConfigFromFlags
// Process infra pods before guaranteed pods
if isKubeInfra(pod) {
// Container belongs in reserved pool.
@@ -290,16 +315,39 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
return nil
}
@ -380,7 +423,7 @@ index 180d018565c..8d18ce65309 100644
numCPUs := p.guaranteedCPUs(pod, container)
if numCPUs == 0 {
// container belongs in the shared pool (nothing to do; use default cpuset)
@@ -348,7 +387,9 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -348,7 +396,9 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
}
s.SetCPUSet(string(pod.UID), container.Name, cpuset)
p.updateCPUsToReuse(pod, container, cpuset)
@ -391,10 +434,71 @@ index 180d018565c..8d18ce65309 100644
return nil
}
@@ -657,6 +698,36 @@ func isKubeInfra(pod *v1.Pod) bool {
return false
@@ -647,14 +697,91 @@ func (p *staticPolicy) generateCPUTopologyHints(availableCPUs cpuset.CPUSet, reu
return hints
}
+func getPodNamespaceObject(podNamespaceName string) (*v1.Namespace, error) {
+
+ cfg, err := varBuildConfigFromFlags("", "/etc/kubernetes/kubelet.conf")
+ if err != nil {
+ klog.Error("Failed to build client config from /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ clientset, err := k8sclient.NewForConfig(cfg)
+ if err != nil {
+ klog.Error("Failed to get clientset for KUBECONFIG /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ namespaceObj, err := clientset.CoreV1().Namespaces().Get(context.TODO(), podNamespaceName, metav1.GetOptions{})
+ if err != nil {
+ klog.Error("Error getting namespace object:", err.Error())
+ return nil, err
+ }
+
+ return namespaceObj, nil
+
+}
+
// check if a given pod is in a platform infrastructure namespace
func isKubeInfra(pod *v1.Pod) bool {
- for _, namespace := range infraNamespaces {
- if namespace == pod.Namespace {
- return true
- }
+
+ podName := pod.GetName()
+ podNamespaceName := pod.GetNamespace()
+
+ klog.InfoS("Checking pod ", podName , " for label 'app.starlingx.io/component=platform'.")
+ podLabels := pod.GetLabels()
+ val, ok := podLabels["app.starlingx.io/component"]
+ if (ok && val == "platform") {
+ klog.InfoS("Pod ", podName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
}
+
+ klog.InfoS("Pod ", pod.GetName(), " does not have 'app.starlingx.io/component=platform' label. Checking its namespace information...")
+
+ namespaceObj, err := varGetNamespaceObject(podNamespaceName)
+ if err != nil {
+ return false
+ }
+
+ namespaceLabels := namespaceObj.GetLabels()
+ val, ok = namespaceLabels["app.starlingx.io/component"]
+ if ok && val == "platform" {
+ klog.InfoS("For pod: ", podName, ", its Namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
+ }
+
+ klog.InfoS("Neither pod ", podName, " nor its namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Not assigning platform CPUs.")
return false
+
+}
+
+// get the isolated CPUs (if any) from the devices associated with a specific container
+func (p *staticPolicy) podIsolCPUs(pod *v1.Pod, container *v1.Container) cpuset.CPUSet {
+ // NOTE: This is required for TestStaticPolicyAdd() since makePod() does
@ -423,16 +527,28 @@ index 180d018565c..8d18ce65309 100644
+ }
+ }
+ return cpuSet
+}
+
}
// isHintSocketAligned function return true if numa nodes in hint are socket aligned.
func (p *staticPolicy) isHintSocketAligned(hint topologymanager.TopologyHint, minAffinitySize int) bool {
numaNodesBitMask := hint.NUMANodeAffinity.GetBits()
diff --git a/pkg/kubelet/cm/cpumanager/policy_static_test.go b/pkg/kubelet/cm/cpumanager/policy_static_test.go
index 414e5ce144c..1c43df3b85f 100644
index 414e5ce144c..f79c23accb4 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static_test.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static_test.go
@@ -28,6 +28,7 @@ import (
@@ -17,10 +17,13 @@ limitations under the License.
package cpumanager
import (
+ "errors"
"fmt"
"reflect"
"testing"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
v1 "k8s.io/api/core/v1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
featuregatetesting "k8s.io/component-base/featuregate/testing"
@@ -28,6 +31,7 @@ import (
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
@ -440,7 +556,7 @@ index 414e5ce144c..1c43df3b85f 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
)
@@ -69,8 +70,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
@@ -69,8 +73,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
}
func TestStaticPolicyName(t *testing.T) {
@ -451,7 +567,7 @@ index 414e5ce144c..1c43df3b85f 100644
policyName := policy.Name()
if policyName != "static" {
@@ -80,6 +82,7 @@ func TestStaticPolicyName(t *testing.T) {
@@ -80,6 +85,7 @@ func TestStaticPolicyName(t *testing.T) {
}
func TestStaticPolicyStart(t *testing.T) {
@ -459,7 +575,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []staticPolicyTest{
{
description: "non-corrupted state",
@@ -155,7 +158,7 @@ func TestStaticPolicyStart(t *testing.T) {
@@ -155,7 +161,7 @@ func TestStaticPolicyStart(t *testing.T) {
}
for _, testCase := range testCases {
t.Run(testCase.description, func(t *testing.T) {
@ -468,7 +584,7 @@ index 414e5ce144c..1c43df3b85f 100644
policy := p.(*staticPolicy)
st := &mockState{
@@ -203,7 +206,6 @@ func TestStaticPolicyAdd(t *testing.T) {
@@ -203,7 +209,6 @@ func TestStaticPolicyAdd(t *testing.T) {
largeTopoCPUSet := largeTopoBuilder.Result()
largeTopoSock0CPUSet := largeTopoSock0Builder.Result()
largeTopoSock1CPUSet := largeTopoSock1Builder.Result()
@ -476,7 +592,7 @@ index 414e5ce144c..1c43df3b85f 100644
// these are the cases which must behave the same regardless the policy options.
// So we will permutate the options to ensure this holds true.
@@ -577,8 +579,10 @@ func runStaticPolicyTestCase(t *testing.T, testCase staticPolicyTest) {
@@ -577,8 +582,10 @@ func runStaticPolicyTestCase(t *testing.T, testCase staticPolicyTest) {
if testCase.topologyHint != nil {
tm = topologymanager.NewFakeManagerWithHint(testCase.topologyHint)
}
@ -488,7 +604,7 @@ index 414e5ce144c..1c43df3b85f 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -625,6 +629,8 @@ func runStaticPolicyTestCaseWithFeatureGate(t *testing.T, testCase staticPolicyT
@@ -625,6 +632,8 @@ func runStaticPolicyTestCaseWithFeatureGate(t *testing.T, testCase staticPolicyT
}
func TestStaticPolicyReuseCPUs(t *testing.T) {
@ -497,7 +613,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []struct {
staticPolicyTest
expCSetAfterAlloc cpuset.CPUSet
@@ -649,7 +655,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -649,7 +658,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
}
for _, testCase := range testCases {
@ -506,7 +622,7 @@ index 414e5ce144c..1c43df3b85f 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -682,6 +688,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -682,6 +691,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
func TestStaticPolicyRemove(t *testing.T) {
excludeReserved := false
@ -514,7 +630,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []staticPolicyTest{
{
description: "SingleSocketHT, DeAllocOneContainer",
@@ -740,7 +747,7 @@ func TestStaticPolicyRemove(t *testing.T) {
@@ -740,7 +750,7 @@ func TestStaticPolicyRemove(t *testing.T) {
}
for _, testCase := range testCases {
@ -523,7 +639,7 @@ index 414e5ce144c..1c43df3b85f 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -763,6 +770,7 @@ func TestStaticPolicyRemove(t *testing.T) {
@@ -763,6 +773,7 @@ func TestStaticPolicyRemove(t *testing.T) {
func TestTopologyAwareAllocateCPUs(t *testing.T) {
excludeReserved := false
@ -531,7 +647,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []struct {
description string
topo *topology.CPUTopology
@@ -831,7 +839,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
@@ -831,7 +842,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
},
}
for _, tc := range testCases {
@ -541,7 +657,7 @@ index 414e5ce144c..1c43df3b85f 100644
policy := p.(*staticPolicy)
st := &mockState{
assignments: tc.stAssignments,
@@ -864,6 +873,7 @@ type staticPolicyTestWithResvList struct {
@@ -864,6 +876,7 @@ type staticPolicyTestWithResvList struct {
topo *topology.CPUTopology
numReservedCPUs int
reserved cpuset.CPUSet
@ -549,7 +665,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments state.ContainerCPUAssignments
stDefaultCPUSet cpuset.CPUSet
pod *v1.Pod
@@ -874,6 +884,8 @@ type staticPolicyTestWithResvList struct {
@@ -874,6 +887,8 @@ type staticPolicyTestWithResvList struct {
}
func TestStaticPolicyStartWithResvList(t *testing.T) {
@ -558,7 +674,7 @@ index 414e5ce144c..1c43df3b85f 100644
testCases := []staticPolicyTestWithResvList{
{
description: "empty cpuset",
@@ -903,11 +915,10 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
@@ -903,11 +918,10 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
expNewErr: fmt.Errorf("[cpumanager] unable to reserve the required amount of CPUs (size of 0-1 did not equal 1)"),
},
}
@ -571,7 +687,7 @@ index 414e5ce144c..1c43df3b85f 100644
if !reflect.DeepEqual(err, testCase.expNewErr) {
t.Errorf("StaticPolicy Start() error (%v). expected error: %v but got: %v",
testCase.description, testCase.expNewErr, err)
@@ -947,6 +958,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -947,6 +961,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 1,
reserved: cpuset.NewCPUSet(0),
@ -579,7 +695,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(1, 2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "8000m", "8000m"),
@@ -959,6 +971,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -959,6 +974,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.NewCPUSet(0, 1),
@ -587,7 +703,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "1000m", "1000m"),
@@ -971,6 +984,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -971,6 +987,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.NewCPUSet(0, 1),
@ -595,7 +711,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.NewCPUSet(2, 3, 6, 7),
@@ -987,6 +1001,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -987,6 +1004,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.NewCPUSet(0, 1),
@ -603,7 +719,7 @@ index 414e5ce144c..1c43df3b85f 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.NewCPUSet(2, 3, 6, 7),
@@ -998,11 +1013,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -998,11 +1016,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
expCPUAlloc: true,
expCSet: cpuset.NewCPUSet(0, 1),
},
@ -634,6 +750,132 @@ index 414e5ce144c..1c43df3b85f 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -1128,3 +1164,125 @@ func TestStaticPolicyOptions(t *testing.T) {
})
}
}
+
+func makePodWithLabels(podLabels map[string]string) *v1.Pod {
+ return &v1.Pod{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-pod",
+ Namespace: "test-namespace",
+ Labels: podLabels,
+ },
+ }
+}
+
+func fakeBuildConfigFromFlags(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ return &restclient.Config{}, nil
+}
+
+func fakeBuildConfigFromFlagsError(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ errString := fmt.Sprintf("%s file not found", kubeconfigPath)
+ return nil, errors.New(errString)
+
+}
+
+func getFakeInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "app.starlingx.io/component": "platform",
+ },
+ }}, nil
+}
+
+func getFakeNonInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "fake": "label",
+ }}}, nil
+
+}
+
+type kubeInfraPodTestCase struct {
+ description string
+ pod *v1.Pod
+ namespaceFunc getPodNamespace
+ expectedValue bool
+}
+
+func TestKubeInfraPod(t *testing.T) {
+ testCases := []kubeInfraPodTestCase{
+ {
+ description: "Pod with platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "app.starlingx.io/component": "platform",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: true,
+
+ },
+ {
+ description: "Pod without platform label and namespace with platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "label",
+ }),
+ namespaceFunc: getFakeInfraPodNamespace,
+ expectedValue: true,
+ },
+ {
+ description: "Pod without platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ },
+
+ }
+
+ for _, testCase := range testCases {
+ t.Run(testCase.description, func(t *testing.T) {
+
+ varGetNamespaceObject = testCase.namespaceFunc
+ varBuildConfigFromFlags = fakeBuildConfigFromFlags
+ gotValue := isKubeInfra(testCase.pod)
+
+ if gotValue != testCase.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ testCase.description, testCase.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", testCase.description)
+ }
+
+ })
+ }
+
+ test := kubeInfraPodTestCase{
+ description: "Failure reading kubeconfig file",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ }
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = fakeBuildConfigFromFlagsError
+
+ gotValue := isKubeInfra(test.pod)
+
+ if gotValue != test.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ test.description, test.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", test.description)
+ }
+
+}
+
diff --git a/pkg/kubelet/cm/devicemanager/manager_stub.go b/pkg/kubelet/cm/devicemanager/manager_stub.go
new file mode 100644
index 00000000000..e6874f88d8a

333
kubernetes/kubernetes-1.27.5/debian/deb_folder/patches/kubelet-cpumanager-introduce-concept-of-isolated-CPU.patch
View File

@ -1,4 +1,4 @@
From b51d6c0ba6dfd9a34c7f6832d17840820f9985eb Mon Sep 17 00:00:00 2001
From 8cdc168daa7fa8adc3a47c2e40900e4bf435babe Mon Sep 17 00:00:00 2001
From: Boovan Rajendran <boovan.rajendran@windriver.com>
Date: Fri, 8 Sep 2023 10:46:07 -0400
Subject: [PATCH] kubelet cpumanager introduce concept of isolated CPUs
@ -47,14 +47,15 @@ Signed-off-by: Gleb Aronsky <gleb.aronsky@windriver.com>
Signed-off-by: Ramesh Kumar Sivanandam <rameshkumar.sivanandam@windriver.com>
Signed-off-by: Sachin Gopala Krishna <saching.krishna@windriver.com>
Signed-off-by: Boovan Rajendran <boovan.rajendran@windriver.com>
Signed-off-by: Kaustubh Dhokte <kaustubh.dhokte@windriver.com>
---
pkg/kubelet/cm/container_manager_linux.go | 1 +
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 ++++++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 23 ++++-
pkg/kubelet/cm/cpumanager/policy_static.go | 83 ++++++++++++++--
.../cm/cpumanager/policy_static_test.go | 53 ++++++++--
pkg/kubelet/cm/devicemanager/manager_stub.go | 99 +++++++++++++++++++
6 files changed, 273 insertions(+), 21 deletions(-)
pkg/kubelet/cm/container_manager_linux.go | 1 +
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 +++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 23 ++-
pkg/kubelet/cm/cpumanager/policy_static.go | 157 ++++++++++++++--
.../cm/cpumanager/policy_static_test.go | 177 +++++++++++++++++-
pkg/kubelet/cm/devicemanager/manager_stub.go | 99 ++++++++++
6 files changed, 462 insertions(+), 30 deletions(-)
create mode 100644 pkg/kubelet/cm/devicemanager/manager_stub.go
diff --git a/pkg/kubelet/cm/container_manager_linux.go b/pkg/kubelet/cm/container_manager_linux.go
@ -265,18 +266,27 @@ index bb69b0ac084..44a88429a12 100644
testCases := []struct {
diff --git a/pkg/kubelet/cm/cpumanager/policy_static.go b/pkg/kubelet/cm/cpumanager/policy_static.go
index 1fdb49b52ad..49f63dd9efd 100644
index 1fdb49b52ad..99990fb596a 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static.go
@@ -18,6 +18,7 @@ package cpumanager
@@ -17,10 +17,16 @@ limitations under the License.
package cpumanager
import (
+ "context"
"fmt"
+ "strconv"
+ k8sclient "k8s.io/client-go/kubernetes"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
v1 "k8s.io/api/core/v1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
@@ -28,6 +29,7 @@ import (
+ "k8s.io/client-go/tools/clientcmd"
"k8s.io/klog/v2"
podutil "k8s.io/kubernetes/pkg/api/v1/pod"
v1qos "k8s.io/kubernetes/pkg/apis/core/v1/helper/qos"
@@ -28,6 +34,7 @@ import (
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
@ -284,7 +294,32 @@ index 1fdb49b52ad..49f63dd9efd 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
"k8s.io/kubernetes/pkg/kubelet/metrics"
@@ -110,6 +112,10 @@ type staticPolicy struct {
@@ -43,6 +50,12 @@ const (
ErrorSMTAlignment = "SMTAlignmentError"
)
+type getPodNamespace func(string) (*v1.Namespace, error)
+type buildFromConfigFlag func(masterUrl string, kubeconfigPath string) (*restclient.Config, error)
+
+var varGetNamespaceObject getPodNamespace
+var varBuildConfigFromFlags buildFromConfigFlag
+
// SMTAlignmentError represents an error due to SMT alignment
type SMTAlignmentError struct {
RequestedCPUs int
@@ -62,11 +75,6 @@ func (e SMTAlignmentError) Type() string {
return ErrorSMTAlignment
}
-// Define namespaces used by platform infrastructure pods
-var infraNamespaces = [...]string{
- "kube-system", "armada", "cert-manager", "platform-deployment-manager", "portieris", "vault", "notification", "flux-helm", "metrics-server",
-}
-
// staticPolicy is a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@@ -110,6 +118,10 @@ type staticPolicy struct {
topology *topology.CPUTopology
// set of CPUs that is not available for exclusive assignment
reservedCPUs cpuset.CPUSet
@ -295,7 +330,7 @@ index 1fdb49b52ad..49f63dd9efd 100644
// If true, default CPUSet should exclude reserved CPUs
excludeReserved bool
// Superset of reservedCPUs. It includes not just the reservedCPUs themselves,
@@ -132,7 +138,8 @@ var _ Policy = &staticPolicy{}
@@ -132,7 +144,8 @@ var _ Policy = &staticPolicy{}
// NewStaticPolicy returns a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@ -305,7 +340,7 @@ index 1fdb49b52ad..49f63dd9efd 100644
opts, err := NewStaticPolicyOptions(cpuPolicyOptions)
if err != nil {
return nil, err
@@ -147,6 +154,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -147,6 +160,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
policy := &staticPolicy{
topology: topology,
affinity: affinity,
@ -314,7 +349,7 @@ index 1fdb49b52ad..49f63dd9efd 100644
excludeReserved: excludeReserved,
cpusToReuse: make(map[string]cpuset.CPUSet),
options: opts,
@@ -183,6 +192,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -183,6 +198,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
policy.reservedCPUs = reserved
policy.reservedPhysicalCPUs = reservedPhysicalCPUs
@ -327,7 +362,7 @@ index 1fdb49b52ad..49f63dd9efd 100644
return policy, nil
}
@@ -216,8 +231,9 @@ func (p *staticPolicy) validateState(s state.State) error {
@@ -216,8 +237,9 @@ func (p *staticPolicy) validateState(s state.State) error {
} else {
s.SetDefaultCPUSet(allCPUs)
}
@ -339,7 +374,17 @@ index 1fdb49b52ad..49f63dd9efd 100644
return nil
}
@@ -316,16 +332,39 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -307,6 +329,9 @@ func (p *staticPolicy) updateCPUsToReuse(pod *v1.Pod, container *v1.Container, c
}
func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Container) (rerr error) {
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = clientcmd.BuildConfigFromFlags
// Process infra pods before guaranteed pods
if isKubeInfra(pod) {
// Container belongs in reserved pool.
@@ -316,16 +341,39 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
return nil
}
@ -381,7 +426,7 @@ index 1fdb49b52ad..49f63dd9efd 100644
numCPUs := p.guaranteedCPUs(pod, container)
if numCPUs == 0 {
// container belongs in the shared pool (nothing to do; use default cpuset)
@@ -391,7 +430,9 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -391,7 +439,9 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
}
s.SetCPUSet(string(pod.UID), container.Name, cpuset)
p.updateCPUsToReuse(pod, container, cpuset)
@ -392,10 +437,71 @@ index 1fdb49b52ad..49f63dd9efd 100644
return nil
}
@@ -709,6 +750,36 @@ func isKubeInfra(pod *v1.Pod) bool {
return false
@@ -699,14 +749,91 @@ func (p *staticPolicy) generateCPUTopologyHints(availableCPUs cpuset.CPUSet, reu
return hints
}
+func getPodNamespaceObject(podNamespaceName string) (*v1.Namespace, error) {
+
+ cfg, err := varBuildConfigFromFlags("", "/etc/kubernetes/kubelet.conf")
+ if err != nil {
+ klog.Error("Failed to build client config from /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ clientset, err := k8sclient.NewForConfig(cfg)
+ if err != nil {
+ klog.Error("Failed to get clientset for KUBECONFIG /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ namespaceObj, err := clientset.CoreV1().Namespaces().Get(context.TODO(), podNamespaceName, metav1.GetOptions{})
+ if err != nil {
+ klog.Error("Error getting namespace object:", err.Error())
+ return nil, err
+ }
+
+ return namespaceObj, nil
+
+}
+
// check if a given pod is in a platform infrastructure namespace
func isKubeInfra(pod *v1.Pod) bool {
- for _, namespace := range infraNamespaces {
- if namespace == pod.Namespace {
- return true
- }
+
+ podName := pod.GetName()
+ podNamespaceName := pod.GetNamespace()
+
+ klog.InfoS("Checking pod ", podName , " for label 'app.starlingx.io/component=platform'.")
+ podLabels := pod.GetLabels()
+ val, ok := podLabels["app.starlingx.io/component"]
+ if (ok && val == "platform") {
+ klog.InfoS("Pod ", podName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
}
+
+ klog.InfoS("Pod ", pod.GetName(), " does not have 'app.starlingx.io/component=platform' label. Checking its namespace information...")
+
+ namespaceObj, err := varGetNamespaceObject(podNamespaceName)
+ if err != nil {
+ return false
+ }
+
+ namespaceLabels := namespaceObj.GetLabels()
+ val, ok = namespaceLabels["app.starlingx.io/component"]
+ if ok && val == "platform" {
+ klog.InfoS("For pod: ", podName, ", its Namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
+ }
+
+ klog.InfoS("Neither pod ", podName, " nor its namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Not assigning platform CPUs.")
return false
+
+}
+
+// get the isolated CPUs (if any) from the devices associated with a specific container
+func (p *staticPolicy) podIsolCPUs(pod *v1.Pod, container *v1.Container) cpuset.CPUSet {
+ // NOTE: This is required for TestStaticPolicyAdd() since makePod() does
@ -424,16 +530,28 @@ index 1fdb49b52ad..49f63dd9efd 100644
+ }
+ }
+ return cpuSet
+}
+
}
// isHintSocketAligned function return true if numa nodes in hint are socket aligned.
func (p *staticPolicy) isHintSocketAligned(hint topologymanager.TopologyHint, minAffinitySize int) bool {
numaNodesBitMask := hint.NUMANodeAffinity.GetBits()
diff --git a/pkg/kubelet/cm/cpumanager/policy_static_test.go b/pkg/kubelet/cm/cpumanager/policy_static_test.go
index 63f31486d19..c25ee484a94 100644
index 63f31486d19..b0ce9d497d9 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static_test.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static_test.go
@@ -28,6 +28,7 @@ import (
@@ -17,10 +17,13 @@ limitations under the License.
package cpumanager
import (
+ "errors"
"fmt"
"reflect"
"testing"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
v1 "k8s.io/api/core/v1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
featuregatetesting "k8s.io/component-base/featuregate/testing"
@@ -28,6 +31,7 @@ import (
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
@ -441,7 +559,7 @@ index 63f31486d19..c25ee484a94 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
)
@@ -70,8 +71,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
@@ -70,8 +74,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
}
func TestStaticPolicyName(t *testing.T) {
@ -452,7 +570,7 @@ index 63f31486d19..c25ee484a94 100644
policyName := policy.Name()
if policyName != "static" {
@@ -81,6 +83,7 @@ func TestStaticPolicyName(t *testing.T) {
@@ -81,6 +86,7 @@ func TestStaticPolicyName(t *testing.T) {
}
func TestStaticPolicyStart(t *testing.T) {
@ -460,7 +578,7 @@ index 63f31486d19..c25ee484a94 100644
testCases := []staticPolicyTest{
{
description: "non-corrupted state",
@@ -156,7 +159,7 @@ func TestStaticPolicyStart(t *testing.T) {
@@ -156,7 +162,7 @@ func TestStaticPolicyStart(t *testing.T) {
}
for _, testCase := range testCases {
t.Run(testCase.description, func(t *testing.T) {
@ -469,7 +587,7 @@ index 63f31486d19..c25ee484a94 100644
policy := p.(*staticPolicy)
st := &mockState{
@@ -204,7 +207,6 @@ func TestStaticPolicyAdd(t *testing.T) {
@@ -204,7 +210,6 @@ func TestStaticPolicyAdd(t *testing.T) {
largeTopoCPUSet := cpuset.New(largeTopoCPUids...)
largeTopoSock0CPUSet := cpuset.New(largeTopoSock0CPUids...)
largeTopoSock1CPUSet := cpuset.New(largeTopoSock1CPUids...)
@ -477,7 +595,7 @@ index 63f31486d19..c25ee484a94 100644
// these are the cases which must behave the same regardless the policy options.
// So we will permutate the options to ensure this holds true.
@@ -627,7 +629,9 @@ func runStaticPolicyTestCase(t *testing.T, testCase staticPolicyTest) {
@@ -627,7 +632,9 @@ func runStaticPolicyTestCase(t *testing.T, testCase staticPolicyTest) {
cpus = testCase.reservedCPUs.Clone()
}
testExcl := false
@ -488,7 +606,7 @@ index 63f31486d19..c25ee484a94 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -674,6 +678,8 @@ func runStaticPolicyTestCaseWithFeatureGate(t *testing.T, testCase staticPolicyT
@@ -674,6 +681,8 @@ func runStaticPolicyTestCaseWithFeatureGate(t *testing.T, testCase staticPolicyT
}
func TestStaticPolicyReuseCPUs(t *testing.T) {
@ -497,7 +615,7 @@ index 63f31486d19..c25ee484a94 100644
testCases := []struct {
staticPolicyTest
expCSetAfterAlloc cpuset.CPUSet
@@ -698,7 +704,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -698,7 +707,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
}
for _, testCase := range testCases {
@ -506,7 +624,7 @@ index 63f31486d19..c25ee484a94 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -731,6 +737,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -731,6 +740,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
func TestStaticPolicyRemove(t *testing.T) {
excludeReserved := false
@ -514,7 +632,7 @@ index 63f31486d19..c25ee484a94 100644
testCases := []staticPolicyTest{
{
description: "SingleSocketHT, DeAllocOneContainer",
@@ -789,7 +796,7 @@ func TestStaticPolicyRemove(t *testing.T) {
@@ -789,7 +799,7 @@ func TestStaticPolicyRemove(t *testing.T) {
}
for _, testCase := range testCases {
@ -523,7 +641,7 @@ index 63f31486d19..c25ee484a94 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -812,6 +819,7 @@ func TestStaticPolicyRemove(t *testing.T) {
@@ -812,6 +822,7 @@ func TestStaticPolicyRemove(t *testing.T) {
func TestTopologyAwareAllocateCPUs(t *testing.T) {
excludeReserved := false
@ -531,7 +649,7 @@ index 63f31486d19..c25ee484a94 100644
testCases := []struct {
description string
topo *topology.CPUTopology
@@ -880,7 +888,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
@@ -880,7 +891,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
},
}
for _, tc := range testCases {
@ -541,7 +659,7 @@ index 63f31486d19..c25ee484a94 100644
policy := p.(*staticPolicy)
st := &mockState{
assignments: tc.stAssignments,
@@ -913,6 +922,7 @@ type staticPolicyTestWithResvList struct {
@@ -913,6 +925,7 @@ type staticPolicyTestWithResvList struct {
topo *topology.CPUTopology
numReservedCPUs int
reserved cpuset.CPUSet
@ -549,7 +667,7 @@ index 63f31486d19..c25ee484a94 100644
stAssignments state.ContainerCPUAssignments
stDefaultCPUSet cpuset.CPUSet
pod *v1.Pod
@@ -923,6 +933,8 @@ type staticPolicyTestWithResvList struct {
@@ -923,6 +936,8 @@ type staticPolicyTestWithResvList struct {
}
func TestStaticPolicyStartWithResvList(t *testing.T) {
@ -558,7 +676,7 @@ index 63f31486d19..c25ee484a94 100644
testCases := []staticPolicyTestWithResvList{
{
description: "empty cpuset",
@@ -952,10 +964,9 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
@@ -952,10 +967,9 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
expNewErr: fmt.Errorf("[cpumanager] unable to reserve the required amount of CPUs (size of 0-1 did not equal 1)"),
},
}
@ -570,7 +688,7 @@ index 63f31486d19..c25ee484a94 100644
if !reflect.DeepEqual(err, testCase.expNewErr) {
t.Errorf("StaticPolicy Start() error (%v). expected error: %v but got: %v",
@@ -996,6 +1007,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -996,6 +1010,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 1,
reserved: cpuset.New(0),
@ -578,7 +696,7 @@ index 63f31486d19..c25ee484a94 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.New(1, 2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "8000m", "8000m"),
@@ -1008,6 +1020,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -1008,6 +1023,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.New(0, 1),
@ -586,7 +704,7 @@ index 63f31486d19..c25ee484a94 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.New(2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "1000m", "1000m"),
@@ -1020,6 +1033,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -1020,6 +1036,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.New(0, 1),
@ -594,7 +712,7 @@ index 63f31486d19..c25ee484a94 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.New(2, 3, 6, 7),
@@ -1036,6 +1050,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -1036,6 +1053,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.New(0, 1),
@ -602,7 +720,7 @@ index 63f31486d19..c25ee484a94 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.New(2, 3, 6, 7),
@@ -1047,11 +1062,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -1047,11 +1065,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
expCPUAlloc: true,
expCSet: cpuset.New(0, 1),
},
@ -633,6 +751,131 @@ index 63f31486d19..c25ee484a94 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -1182,3 +1218,124 @@ func newCPUSetPtr(cpus ...int) *cpuset.CPUSet {
ret := cpuset.New(cpus...)
return &ret
}
+
+func makePodWithLabels(podLabels map[string]string) *v1.Pod {
+ return &v1.Pod{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-pod",
+ Namespace: "test-namespace",
+ Labels: podLabels,
+ },
+ }
+}
+
+func fakeBuildConfigFromFlags(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ return &restclient.Config{}, nil
+}
+
+func fakeBuildConfigFromFlagsError(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ errString := fmt.Sprintf("%s file not found", kubeconfigPath)
+ return nil, errors.New(errString)
+
+}
+
+func getFakeInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "app.starlingx.io/component": "platform",
+ },
+ }}, nil
+}
+
+func getFakeNonInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "fake": "label",
+ }}}, nil
+
+}
+
+type kubeInfraPodTestCase struct {
+ description string
+ pod *v1.Pod
+ namespaceFunc getPodNamespace
+ expectedValue bool
+}
+
+func TestKubeInfraPod(t *testing.T) {
+ testCases := []kubeInfraPodTestCase{
+ {
+ description: "Pod with platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "app.starlingx.io/component": "platform",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: true,
+
+ },
+ {
+ description: "Pod without platform label and namespace with platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "label",
+ }),
+ namespaceFunc: getFakeInfraPodNamespace,
+ expectedValue: true,
+ },
+ {
+ description: "Pod without platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ },
+
+ }
+
+ for _, testCase := range testCases {
+ t.Run(testCase.description, func(t *testing.T) {
+
+ varGetNamespaceObject = testCase.namespaceFunc
+ varBuildConfigFromFlags = fakeBuildConfigFromFlags
+ gotValue := isKubeInfra(testCase.pod)
+
+ if gotValue != testCase.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ testCase.description, testCase.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", testCase.description)
+ }
+
+ })
+ }
+
+ test := kubeInfraPodTestCase{
+ description: "Failure reading kubeconfig file",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ }
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = fakeBuildConfigFromFlagsError
+
+ gotValue := isKubeInfra(test.pod)
+
+ if gotValue != test.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ test.description, test.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", test.description)
+ }
+
+}
diff --git a/pkg/kubelet/cm/devicemanager/manager_stub.go b/pkg/kubelet/cm/devicemanager/manager_stub.go
new file mode 100644
index 00000000000..e6874f88d8a

330
kubernetes/kubernetes-1.28.4/debian/deb_folder/patches/kubelet-cpumanager-introduce-concept-of-isolated-CPU.patch
View File

@ -1,4 +1,4 @@
From 856dfbe0960418618262998ebce65d0ae070c1bb Mon Sep 17 00:00:00 2001
From 4f74e4f9bbfd2909a3c740cb6a1b5233af277f72 Mon Sep 17 00:00:00 2001
From: Saba Touheed Mujawar <sabatouheed.mujawar@windriver.com>
Date: Fri, 1 Dec 2023 07:42:14 -0500
Subject: [PATCH] kubelet cpumanager introduce concept of isolated CPUs
@ -48,14 +48,15 @@ Signed-off-by: Ramesh Kumar Sivanandam <rameshkumar.sivanandam@windriver.com>
Signed-off-by: Sachin Gopala Krishna <saching.krishna@windriver.com>
Signed-off-by: Boovan Rajendran <boovan.rajendran@windriver.com>
Signed-off-by: Saba Touheed Mujawar <sabatouheed.mujawar@windriver.com>
Signed-off-by: Kaustubh Dhokte <kaustubh.dhokte@windriver.com>
---
pkg/kubelet/cm/container_manager_linux.go | 1 +
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 +++++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 23 +++-
pkg/kubelet/cm/cpumanager/policy_static.go | 83 ++++++++++++-
.../cm/cpumanager/policy_static_test.go | 53 +++++++--
pkg/kubelet/cm/devicemanager/manager_stub.go | 110 ++++++++++++++++++
6 files changed, 284 insertions(+), 21 deletions(-)
pkg/kubelet/cm/cpumanager/cpu_manager.go | 35 +++-
pkg/kubelet/cm/cpumanager/cpu_manager_test.go | 23 ++-
pkg/kubelet/cm/cpumanager/policy_static.go | 157 +++++++++++++--
.../cm/cpumanager/policy_static_test.go | 178 +++++++++++++++++-
pkg/kubelet/cm/devicemanager/manager_stub.go | 110 +++++++++++
6 files changed, 474 insertions(+), 30 deletions(-)
create mode 100644 pkg/kubelet/cm/devicemanager/manager_stub.go
diff --git a/pkg/kubelet/cm/container_manager_linux.go b/pkg/kubelet/cm/container_manager_linux.go
@ -266,18 +267,26 @@ index daecd35f67b..2298cc037fe 100644
testCases := []struct {
diff --git a/pkg/kubelet/cm/cpumanager/policy_static.go b/pkg/kubelet/cm/cpumanager/policy_static.go
index 9b7545c2207..e9a2defd848 100644
index 9b7545c2207..e32803306c0 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static.go
@@ -18,6 +18,7 @@ package cpumanager
@@ -17,9 +17,15 @@ limitations under the License.
package cpumanager
import (
+ "context"
"fmt"
+ "strconv"
+ k8sclient "k8s.io/client-go/kubernetes"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
v1 "k8s.io/api/core/v1"
+ "k8s.io/client-go/tools/clientcmd"
utilfeature "k8s.io/apiserver/pkg/util/feature"
@@ -27,6 +28,7 @@ import (
"k8s.io/klog/v2"
podutil "k8s.io/kubernetes/pkg/api/v1/pod"
@@ -27,6 +33,7 @@ import (
"k8s.io/kubernetes/pkg/features"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
@ -285,7 +294,32 @@ index 9b7545c2207..e9a2defd848 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
"k8s.io/kubernetes/pkg/kubelet/metrics"
@@ -110,6 +112,10 @@ type staticPolicy struct {
@@ -43,6 +50,12 @@ const (
ErrorSMTAlignment = "SMTAlignmentError"
)
+type getPodNamespace func(string) (*v1.Namespace, error)
+type buildFromConfigFlag func(masterUrl string, kubeconfigPath string) (*restclient.Config, error)
+
+var varGetNamespaceObject getPodNamespace
+var varBuildConfigFromFlags buildFromConfigFlag
+
// SMTAlignmentError represents an error due to SMT alignment
type SMTAlignmentError struct {
RequestedCPUs int
@@ -62,11 +75,6 @@ func (e SMTAlignmentError) Type() string {
return ErrorSMTAlignment
}
-// Define namespaces used by platform infrastructure pods
-var infraNamespaces = [...]string{
- "kube-system", "armada", "cert-manager", "platform-deployment-manager", "portieris", "vault", "notification", "flux-helm", "metrics-server",
-}
-
// staticPolicy is a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@@ -110,6 +118,10 @@ type staticPolicy struct {
topology *topology.CPUTopology
// set of CPUs that is not available for exclusive assignment
reservedCPUs cpuset.CPUSet
@ -296,7 +330,7 @@ index 9b7545c2207..e9a2defd848 100644
// If true, default CPUSet should exclude reserved CPUs
excludeReserved bool
// Superset of reservedCPUs. It includes not just the reservedCPUs themselves,
@@ -132,7 +138,8 @@ var _ Policy = &staticPolicy{}
@@ -132,7 +144,8 @@ var _ Policy = &staticPolicy{}
// NewStaticPolicy returns a CPU manager policy that does not change CPU
// assignments for exclusively pinned guaranteed containers after the main
// container process starts.
@ -306,7 +340,7 @@ index 9b7545c2207..e9a2defd848 100644
opts, err := NewStaticPolicyOptions(cpuPolicyOptions)
if err != nil {
return nil, err
@@ -147,6 +154,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -147,6 +160,8 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
policy := &staticPolicy{
topology: topology,
affinity: affinity,
@ -315,7 +349,7 @@ index 9b7545c2207..e9a2defd848 100644
excludeReserved: excludeReserved,
cpusToReuse: make(map[string]cpuset.CPUSet),
options: opts,
@@ -183,6 +192,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
@@ -183,6 +198,12 @@ func NewStaticPolicy(topology *topology.CPUTopology, numReservedCPUs int, reserv
policy.reservedCPUs = reserved
policy.reservedPhysicalCPUs = reservedPhysicalCPUs
@ -328,7 +362,7 @@ index 9b7545c2207..e9a2defd848 100644
return policy, nil
}
@@ -216,8 +231,9 @@ func (p *staticPolicy) validateState(s state.State) error {
@@ -216,8 +237,9 @@ func (p *staticPolicy) validateState(s state.State) error {
} else {
s.SetDefaultCPUSet(allCPUs)
}
@ -340,7 +374,17 @@ index 9b7545c2207..e9a2defd848 100644
return nil
}
@@ -316,16 +332,39 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -307,6 +329,9 @@ func (p *staticPolicy) updateCPUsToReuse(pod *v1.Pod, container *v1.Container, c
}
func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Container) (rerr error) {
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = clientcmd.BuildConfigFromFlags
// Process infra pods before guaranteed pods
if isKubeInfra(pod) {
// Container belongs in reserved pool.
@@ -316,16 +341,39 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
return nil
}
@ -382,7 +426,7 @@ index 9b7545c2207..e9a2defd848 100644
numCPUs := p.guaranteedCPUs(pod, container)
if numCPUs == 0 {
// container belongs in the shared pool (nothing to do; use default cpuset)
@@ -391,7 +430,9 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
@@ -391,7 +439,9 @@ func (p *staticPolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Contai
}
s.SetCPUSet(string(pod.UID), container.Name, cpuset)
p.updateCPUsToReuse(pod, container, cpuset)
@ -393,10 +437,71 @@ index 9b7545c2207..e9a2defd848 100644
return nil
}
@@ -709,6 +750,36 @@ func isKubeInfra(pod *v1.Pod) bool {
return false
@@ -699,14 +749,91 @@ func (p *staticPolicy) generateCPUTopologyHints(availableCPUs cpuset.CPUSet, reu
return hints
}
+func getPodNamespaceObject(podNamespaceName string) (*v1.Namespace, error) {
+
+ cfg, err := varBuildConfigFromFlags("", "/etc/kubernetes/kubelet.conf")
+ if err != nil {
+ klog.Error("Failed to build client config from /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ clientset, err := k8sclient.NewForConfig(cfg)
+ if err != nil {
+ klog.Error("Failed to get clientset for KUBECONFIG /etc/kubernetes/kubelet.conf: ", err.Error())
+ return nil, err
+ }
+
+ namespaceObj, err := clientset.CoreV1().Namespaces().Get(context.TODO(), podNamespaceName, metav1.GetOptions{})
+ if err != nil {
+ klog.Error("Error getting namespace object:", err.Error())
+ return nil, err
+ }
+
+ return namespaceObj, nil
+
+}
+
// check if a given pod is in a platform infrastructure namespace
func isKubeInfra(pod *v1.Pod) bool {
- for _, namespace := range infraNamespaces {
- if namespace == pod.Namespace {
- return true
- }
+
+ podName := pod.GetName()
+ podNamespaceName := pod.GetNamespace()
+
+ klog.InfoS("Checking pod ", podName , " for label 'app.starlingx.io/component=platform'.")
+ podLabels := pod.GetLabels()
+ val, ok := podLabels["app.starlingx.io/component"]
+ if (ok && val == "platform") {
+ klog.InfoS("Pod ", podName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
}
+
+ klog.InfoS("Pod ", pod.GetName(), " does not have 'app.starlingx.io/component=platform' label. Checking its namespace information...")
+
+ namespaceObj, err := varGetNamespaceObject(podNamespaceName)
+ if err != nil {
+ return false
+ }
+
+ namespaceLabels := namespaceObj.GetLabels()
+ val, ok = namespaceLabels["app.starlingx.io/component"]
+ if ok && val == "platform" {
+ klog.InfoS("For pod: ", podName, ", its Namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Assigning platform CPUs.")
+ return true
+ }
+
+ klog.InfoS("Neither pod ", podName, " nor its namespace ", podNamespaceName, " has 'app.starlingx.io/component=platform' label. Not assigning platform CPUs.")
return false
+
+}
+
+// get the isolated CPUs (if any) from the devices associated with a specific container
+func (p *staticPolicy) podIsolCPUs(pod *v1.Pod, container *v1.Container) cpuset.CPUSet {
+ // NOTE: This is required for TestStaticPolicyAdd() since makePod() does
@ -425,16 +530,27 @@ index 9b7545c2207..e9a2defd848 100644
+ }
+ }
+ return cpuSet
+}
+
}
// isHintSocketAligned function return true if numa nodes in hint are socket aligned.
func (p *staticPolicy) isHintSocketAligned(hint topologymanager.TopologyHint, minAffinitySize int) bool {
numaNodesBitMask := hint.NUMANodeAffinity.GetBits()
diff --git a/pkg/kubelet/cm/cpumanager/policy_static_test.go b/pkg/kubelet/cm/cpumanager/policy_static_test.go
index b864c6c57c6..cb363bb29ab 100644
index b864c6c57c6..d94f8fdac14 100644
--- a/pkg/kubelet/cm/cpumanager/policy_static_test.go
+++ b/pkg/kubelet/cm/cpumanager/policy_static_test.go
@@ -27,6 +27,7 @@ import (
@@ -17,16 +17,20 @@ limitations under the License.
package cpumanager
import (
+ "errors"
"fmt"
"reflect"
"testing"
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ restclient "k8s.io/client-go/rest"
v1 "k8s.io/api/core/v1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
featuregatetesting "k8s.io/component-base/featuregate/testing"
pkgfeatures "k8s.io/kubernetes/pkg/features"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/topology"
@ -442,7 +558,7 @@ index b864c6c57c6..cb363bb29ab 100644
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager/bitmask"
"k8s.io/utils/cpuset"
@@ -70,8 +71,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
@@ -70,8 +74,9 @@ func (spt staticPolicyTest) PseudoClone() staticPolicyTest {
}
func TestStaticPolicyName(t *testing.T) {
@ -453,7 +569,7 @@ index b864c6c57c6..cb363bb29ab 100644
policyName := policy.Name()
if policyName != "static" {
@@ -81,6 +83,7 @@ func TestStaticPolicyName(t *testing.T) {
@@ -81,6 +86,7 @@ func TestStaticPolicyName(t *testing.T) {
}
func TestStaticPolicyStart(t *testing.T) {
@ -461,7 +577,7 @@ index b864c6c57c6..cb363bb29ab 100644
testCases := []staticPolicyTest{
{
description: "non-corrupted state",
@@ -156,7 +159,7 @@ func TestStaticPolicyStart(t *testing.T) {
@@ -156,7 +162,7 @@ func TestStaticPolicyStart(t *testing.T) {
}
for _, testCase := range testCases {
t.Run(testCase.description, func(t *testing.T) {
@ -470,7 +586,7 @@ index b864c6c57c6..cb363bb29ab 100644
policy := p.(*staticPolicy)
st := &mockState{
@@ -204,7 +207,6 @@ func TestStaticPolicyAdd(t *testing.T) {
@@ -204,7 +210,6 @@ func TestStaticPolicyAdd(t *testing.T) {
largeTopoCPUSet := cpuset.New(largeTopoCPUids...)
largeTopoSock0CPUSet := cpuset.New(largeTopoSock0CPUids...)
largeTopoSock1CPUSet := cpuset.New(largeTopoSock1CPUids...)
@ -478,7 +594,7 @@ index b864c6c57c6..cb363bb29ab 100644
// these are the cases which must behave the same regardless the policy options.
// So we will permutate the options to ensure this holds true.
@@ -627,7 +629,9 @@ func runStaticPolicyTestCase(t *testing.T, testCase staticPolicyTest) {
@@ -627,7 +632,9 @@ func runStaticPolicyTestCase(t *testing.T, testCase staticPolicyTest) {
cpus = testCase.reservedCPUs.Clone()
}
testExcl := false
@ -489,7 +605,7 @@ index b864c6c57c6..cb363bb29ab 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -674,6 +678,8 @@ func runStaticPolicyTestCaseWithFeatureGate(t *testing.T, testCase staticPolicyT
@@ -674,6 +681,8 @@ func runStaticPolicyTestCaseWithFeatureGate(t *testing.T, testCase staticPolicyT
}
func TestStaticPolicyReuseCPUs(t *testing.T) {
@ -498,7 +614,7 @@ index b864c6c57c6..cb363bb29ab 100644
testCases := []struct {
staticPolicyTest
expCSetAfterAlloc cpuset.CPUSet
@@ -698,7 +704,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -698,7 +707,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
}
for _, testCase := range testCases {
@ -507,7 +623,7 @@ index b864c6c57c6..cb363bb29ab 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -731,6 +737,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
@@ -731,6 +740,7 @@ func TestStaticPolicyReuseCPUs(t *testing.T) {
func TestStaticPolicyRemove(t *testing.T) {
excludeReserved := false
@ -515,7 +631,7 @@ index b864c6c57c6..cb363bb29ab 100644
testCases := []staticPolicyTest{
{
description: "SingleSocketHT, DeAllocOneContainer",
@@ -789,7 +796,7 @@ func TestStaticPolicyRemove(t *testing.T) {
@@ -789,7 +799,7 @@ func TestStaticPolicyRemove(t *testing.T) {
}
for _, testCase := range testCases {
@ -524,7 +640,7 @@ index b864c6c57c6..cb363bb29ab 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -812,6 +819,7 @@ func TestStaticPolicyRemove(t *testing.T) {
@@ -812,6 +822,7 @@ func TestStaticPolicyRemove(t *testing.T) {
func TestTopologyAwareAllocateCPUs(t *testing.T) {
excludeReserved := false
@ -532,7 +648,7 @@ index b864c6c57c6..cb363bb29ab 100644
testCases := []struct {
description string
topo *topology.CPUTopology
@@ -880,7 +888,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
@@ -880,7 +891,8 @@ func TestTopologyAwareAllocateCPUs(t *testing.T) {
},
}
for _, tc := range testCases {
@ -542,7 +658,7 @@ index b864c6c57c6..cb363bb29ab 100644
policy := p.(*staticPolicy)
st := &mockState{
assignments: tc.stAssignments,
@@ -913,6 +922,7 @@ type staticPolicyTestWithResvList struct {
@@ -913,6 +925,7 @@ type staticPolicyTestWithResvList struct {
topo *topology.CPUTopology
numReservedCPUs int
reserved cpuset.CPUSet
@ -550,7 +666,7 @@ index b864c6c57c6..cb363bb29ab 100644
stAssignments state.ContainerCPUAssignments
stDefaultCPUSet cpuset.CPUSet
pod *v1.Pod
@@ -923,6 +933,8 @@ type staticPolicyTestWithResvList struct {
@@ -923,6 +936,8 @@ type staticPolicyTestWithResvList struct {
}
func TestStaticPolicyStartWithResvList(t *testing.T) {
@ -559,7 +675,7 @@ index b864c6c57c6..cb363bb29ab 100644
testCases := []staticPolicyTestWithResvList{
{
description: "empty cpuset",
@@ -952,10 +964,9 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
@@ -952,10 +967,9 @@ func TestStaticPolicyStartWithResvList(t *testing.T) {
expNewErr: fmt.Errorf("[cpumanager] unable to reserve the required amount of CPUs (size of 0-1 did not equal 1)"),
},
}
@ -571,7 +687,7 @@ index b864c6c57c6..cb363bb29ab 100644
if !reflect.DeepEqual(err, testCase.expNewErr) {
t.Errorf("StaticPolicy Start() error (%v). expected error: %v but got: %v",
@@ -996,6 +1007,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -996,6 +1010,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 1,
reserved: cpuset.New(0),
@ -579,7 +695,7 @@ index b864c6c57c6..cb363bb29ab 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.New(1, 2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "8000m", "8000m"),
@@ -1008,6 +1020,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -1008,6 +1023,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.New(0, 1),
@ -587,7 +703,7 @@ index b864c6c57c6..cb363bb29ab 100644
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.New(2, 3, 4, 5, 6, 7),
pod: makePod("fakePod", "fakeContainer2", "1000m", "1000m"),
@@ -1020,6 +1033,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -1020,6 +1036,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.New(0, 1),
@ -595,7 +711,7 @@ index b864c6c57c6..cb363bb29ab 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.New(2, 3, 6, 7),
@@ -1036,6 +1050,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -1036,6 +1053,7 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
topo: topoSingleSocketHT,
numReservedCPUs: 2,
reserved: cpuset.New(0, 1),
@ -603,7 +719,7 @@ index b864c6c57c6..cb363bb29ab 100644
stAssignments: state.ContainerCPUAssignments{
"fakePod": map[string]cpuset.CPUSet{
"fakeContainer100": cpuset.New(2, 3, 6, 7),
@@ -1047,11 +1062,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
@@ -1047,11 +1065,29 @@ func TestStaticPolicyAddWithResvList(t *testing.T) {
expCPUAlloc: true,
expCSet: cpuset.New(0, 1),
},
@ -634,6 +750,132 @@ index b864c6c57c6..cb363bb29ab 100644
st := &mockState{
assignments: testCase.stAssignments,
@@ -1182,3 +1218,125 @@ func newCPUSetPtr(cpus ...int) *cpuset.CPUSet {
ret := cpuset.New(cpus...)
return &ret
}
+
+func makePodWithLabels(podLabels map[string]string) *v1.Pod {
+ return &v1.Pod{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-pod",
+ Namespace: "test-namespace",
+ Labels: podLabels,
+ },
+ }
+}
+
+func fakeBuildConfigFromFlags(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ return &restclient.Config{}, nil
+}
+
+func fakeBuildConfigFromFlagsError(masterUrl string, kubeconfigPath string) (*restclient.Config, error) {
+
+ errString := fmt.Sprintf("%s file not found", kubeconfigPath)
+ return nil, errors.New(errString)
+
+}
+
+func getFakeInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "app.starlingx.io/component": "platform",
+ },
+ }}, nil
+}
+
+func getFakeNonInfraPodNamespace(_ string) (*v1.Namespace, error) {
+
+ return &v1.Namespace{
+ ObjectMeta: metav1.ObjectMeta{
+ Name: "test-namespace",
+ Labels: map[string]string{
+ "fake": "label",
+ }}}, nil
+
+}
+
+type kubeInfraPodTestCase struct {
+ description string
+ pod *v1.Pod
+ namespaceFunc getPodNamespace
+ expectedValue bool
+}
+
+func TestKubeInfraPod(t *testing.T) {
+ testCases := []kubeInfraPodTestCase{
+ {
+ description: "Pod with platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "app.starlingx.io/component": "platform",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: true,
+
+ },
+ {
+ description: "Pod without platform label and namespace with platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "label",
+ }),
+ namespaceFunc: getFakeInfraPodNamespace,
+ expectedValue: true,
+ },
+ {
+ description: "Pod without platform label and namespace without platform label",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ },
+
+ }
+
+ for _, testCase := range testCases {
+ t.Run(testCase.description, func(t *testing.T) {
+
+ varGetNamespaceObject = testCase.namespaceFunc
+ varBuildConfigFromFlags = fakeBuildConfigFromFlags
+ gotValue := isKubeInfra(testCase.pod)
+
+ if gotValue != testCase.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ testCase.description, testCase.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", testCase.description)
+ }
+
+ })
+ }
+
+ test := kubeInfraPodTestCase{
+ description: "Failure reading kubeconfig file",
+ pod: makePodWithLabels(map[string]string{
+ "test": "namespace",
+ }),
+ namespaceFunc: getFakeNonInfraPodNamespace,
+ expectedValue: false,
+ }
+
+ varGetNamespaceObject = getPodNamespaceObject
+ varBuildConfigFromFlags = fakeBuildConfigFromFlagsError
+
+ gotValue := isKubeInfra(test.pod)
+
+ if gotValue != test.expectedValue {
+ t.Errorf("StaticPolicy isKubeInfraPod() error %v. expected value %v actual value %v",
+ test.description, test.expectedValue, gotValue)
+ } else {
+ fmt.Printf("StaticPolicy isKubeInfraPod() test successful. : %v ", test.description)
+ }
+
+}
+
diff --git a/pkg/kubelet/cm/devicemanager/manager_stub.go b/pkg/kubelet/cm/devicemanager/manager_stub.go
new file mode 100644
index 00000000000..98abcde2519