mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-27 13:37:30 +00:00
e2e: node: add tests for cpumanager metrics
Add tests to verify the cpumanager metrics are populated. Signed-off-by: Francesco Romani <fromani@redhat.com>
This commit is contained in:
Francesco Romani
parent
47d3299781
commit
bdc08eaa4b
206
test/e2e_node/cpu_manager_metrics_test.go
Normal file
206
test/e2e_node/cpu_manager_metrics_test.go
Normal file
@ -0,0 +1,206 @@
|
|||||||
|
/*
|
||||||
|
Copyright 2022 The Kubernetes Authors.
|
||||||
|
|
||||||
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
you may not use this file except in compliance with the License.
|
||||||
|
You may obtain a copy of the License at
|
||||||
|
|
||||||
|
http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
|
||||||
|
Unless required by applicable law or agreed to in writing, software
|
||||||
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
See the License for the specific language governing permissions and
|
||||||
|
limitations under the License.
|
||||||
|
*/
|
||||||
|
|
||||||
|
package e2enode
|
||||||
|
|
||||||
|
import (
|
||||||
|
"fmt"
|
||||||
|
"time"
|
||||||
|
|
||||||
|
"github.com/onsi/ginkgo/v2"
|
||||||
|
"github.com/onsi/gomega"
|
||||||
|
"github.com/onsi/gomega/gstruct"
|
||||||
|
"github.com/onsi/gomega/types"
|
||||||
|
|
||||||
|
v1 "k8s.io/api/core/v1"
|
||||||
|
"k8s.io/apimachinery/pkg/api/resource"
|
||||||
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||||
|
kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
|
||||||
|
"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager"
|
||||||
|
"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
|
||||||
|
"k8s.io/kubernetes/test/e2e/framework"
|
||||||
|
e2emetrics "k8s.io/kubernetes/test/e2e/framework/metrics"
|
||||||
|
e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
|
||||||
|
e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
|
||||||
|
admissionapi "k8s.io/pod-security-admission/api"
|
||||||
|
)
|
||||||
|
|
||||||
|
var _ = SIGDescribe("CPU Manager Metrics [Serial][Feature:CPUManager]", func() {
|
||||||
|
f := framework.NewDefaultFramework("cpumanager-metrics")
|
||||||
|
f.NamespacePodSecurityEnforceLevel = admissionapi.LevelPrivileged
|
||||||
|
|
||||||
|
ginkgo.Context("when querying /metrics", func() {
|
||||||
|
var oldCfg *kubeletconfig.KubeletConfiguration
|
||||||
|
var testPod *v1.Pod
|
||||||
|
var smtLevel int
|
||||||
|
|
||||||
|
ginkgo.BeforeEach(func() {
|
||||||
|
var err error
|
||||||
|
if oldCfg == nil {
|
||||||
|
oldCfg, err = getCurrentKubeletConfig()
|
||||||
|
framework.ExpectNoError(err)
|
||||||
|
}
|
||||||
|
|
||||||
|
fullCPUsOnlyOpt := fmt.Sprintf("option=%s", cpumanager.FullPCPUsOnlyOption)
|
||||||
|
_, cpuAlloc, _ := getLocalNodeCPUDetails(f)
|
||||||
|
smtLevel = getSMTLevel()
|
||||||
|
|
||||||
|
// strict SMT alignment is trivially verified and granted on non-SMT systems
|
||||||
|
if smtLevel < 2 {
|
||||||
|
e2eskipper.Skipf("Skipping CPU Manager %s tests since SMT disabled", fullCPUsOnlyOpt)
|
||||||
|
}
|
||||||
|
|
||||||
|
// our tests want to allocate up to a full core, so we need at last 2*2=4 virtual cpus
|
||||||
|
if cpuAlloc < int64(smtLevel*2) {
|
||||||
|
e2eskipper.Skipf("Skipping CPU Manager %s tests since the CPU capacity < 4", fullCPUsOnlyOpt)
|
||||||
|
}
|
||||||
|
|
||||||
|
framework.Logf("SMT level %d", smtLevel)
|
||||||
|
|
||||||
|
// TODO: we assume the first available CPUID is 0, which is pretty fair, but we should probably
|
||||||
|
// check what we do have in the node.
|
||||||
|
cpuPolicyOptions := map[string]string{
|
||||||
|
cpumanager.FullPCPUsOnlyOption: "true",
|
||||||
|
}
|
||||||
|
newCfg := configureCPUManagerInKubelet(oldCfg,
|
||||||
|
&cpuManagerKubeletArguments{
|
||||||
|
policyName: string(cpumanager.PolicyStatic),
|
||||||
|
enableCPUManager: true,
|
||||||
|
reservedSystemCPUs: cpuset.NewCPUSet(0),
|
||||||
|
enableCPUManagerOptions: true,
|
||||||
|
options: cpuPolicyOptions,
|
||||||
|
},
|
||||||
|
)
|
||||||
|
updateKubeletConfig(f, newCfg, true)
|
||||||
|
})
|
||||||
|
|
||||||
|
ginkgo.AfterEach(func() {
|
||||||
|
if testPod != nil {
|
||||||
|
deletePodSyncByName(f, testPod.Name)
|
||||||
|
}
|
||||||
|
updateKubeletConfig(f, oldCfg, true)
|
||||||
|
})
|
||||||
|
|
||||||
|
ginkgo.It("should report zero pinning counters after a fresh restart", func() {
|
||||||
|
// we updated the kubelet config in BeforeEach, so we can assume we start fresh.
|
||||||
|
// being [Serial], we can also assume noone else but us is running pods.
|
||||||
|
ginkgo.By("Checking the cpumanager metrics right after the kubelet restart, with no pods running")
|
||||||
|
|
||||||
|
matchResourceMetrics := gstruct.MatchKeys(gstruct.IgnoreExtras, gstruct.Keys{
|
||||||
|
"kubelet_cpu_manager_pinning_requests_total": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
||||||
|
"": timelessSample(0),
|
||||||
|
}),
|
||||||
|
"kubelet_cpu_manager_pinning_errors_total": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
||||||
|
"": timelessSample(0),
|
||||||
|
}),
|
||||||
|
})
|
||||||
|
|
||||||
|
ginkgo.By("Giving the Kubelet time to start up and produce metrics")
|
||||||
|
gomega.Eventually(getCPUManagerMetrics, 1*time.Minute, 15*time.Second).Should(matchResourceMetrics)
|
||||||
|
ginkgo.By("Ensuring the metrics match the expectations a few more times")
|
||||||
|
gomega.Consistently(getCPUManagerMetrics, 1*time.Minute, 15*time.Second).Should(matchResourceMetrics)
|
||||||
|
})
|
||||||
|
|
||||||
|
ginkgo.It("should report pinning failures when the cpumanager allocation is known to fail", func() {
|
||||||
|
ginkgo.By("Creating the test pod which will be rejected for SMTAlignmentError")
|
||||||
|
testPod = e2epod.NewPodClient(f).Create(makeGuaranteedCPUExclusiveSleeperPod("smt-align-err", 1))
|
||||||
|
|
||||||
|
// we updated the kubelet config in BeforeEach, so we can assume we start fresh.
|
||||||
|
// being [Serial], we can also assume noone else but us is running pods.
|
||||||
|
ginkgo.By("Checking the cpumanager metrics right after the kubelet restart, with pod failed to admit")
|
||||||
|
|
||||||
|
matchResourceMetrics := gstruct.MatchKeys(gstruct.IgnoreExtras, gstruct.Keys{
|
||||||
|
"kubelet_cpu_manager_pinning_requests_total": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
||||||
|
"": timelessSample(1),
|
||||||
|
}),
|
||||||
|
"kubelet_cpu_manager_pinning_errors_total": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
||||||
|
"": timelessSample(1),
|
||||||
|
}),
|
||||||
|
})
|
||||||
|
|
||||||
|
ginkgo.By("Giving the Kubelet time to start up and produce metrics")
|
||||||
|
gomega.Eventually(getCPUManagerMetrics, 1*time.Minute, 15*time.Second).Should(matchResourceMetrics)
|
||||||
|
ginkgo.By("Ensuring the metrics match the expectations a few more times")
|
||||||
|
gomega.Consistently(getCPUManagerMetrics, 1*time.Minute, 15*time.Second).Should(matchResourceMetrics)
|
||||||
|
})
|
||||||
|
|
||||||
|
ginkgo.It("should not report any pinning failures when the cpumanager allocation is expected to succeed", func() {
|
||||||
|
ginkgo.By("Creating the test pod")
|
||||||
|
testPod = e2epod.NewPodClient(f).Create(makeGuaranteedCPUExclusiveSleeperPod("smt-align-ok", smtLevel))
|
||||||
|
|
||||||
|
// we updated the kubelet config in BeforeEach, so we can assume we start fresh.
|
||||||
|
// being [Serial], we can also assume noone else but us is running pods.
|
||||||
|
ginkgo.By("Checking the cpumanager metrics right after the kubelet restart, with pod should be admitted")
|
||||||
|
|
||||||
|
matchResourceMetrics := gstruct.MatchKeys(gstruct.IgnoreExtras, gstruct.Keys{
|
||||||
|
"kubelet_cpu_manager_pinning_requests_total": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
||||||
|
"": timelessSample(1),
|
||||||
|
}),
|
||||||
|
"kubelet_cpu_manager_pinning_errors_total": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
||||||
|
"": timelessSample(0),
|
||||||
|
}),
|
||||||
|
})
|
||||||
|
|
||||||
|
ginkgo.By("Giving the Kubelet time to start up and produce metrics")
|
||||||
|
gomega.Eventually(getCPUManagerMetrics, 1*time.Minute, 15*time.Second).Should(matchResourceMetrics)
|
||||||
|
ginkgo.By("Ensuring the metrics match the expectations a few more times")
|
||||||
|
gomega.Consistently(getCPUManagerMetrics, 1*time.Minute, 15*time.Second).Should(matchResourceMetrics)
|
||||||
|
})
|
||||||
|
})
|
||||||
|
})
|
||||||
|
|
||||||
|
func getCPUManagerMetrics() (e2emetrics.KubeletMetrics, error) {
|
||||||
|
// we are running out of good names, so we need to be unnecessarily specific to avoid clashes
|
||||||
|
ginkgo.By("getting CPU Manager metrics from the metrics API")
|
||||||
|
return e2emetrics.GrabKubeletMetricsWithoutProxy(framework.TestContext.NodeName+":10255", "/metrics")
|
||||||
|
}
|
||||||
|
|
||||||
|
func makeGuaranteedCPUExclusiveSleeperPod(name string, cpus int) *v1.Pod {
|
||||||
|
return &v1.Pod{
|
||||||
|
ObjectMeta: metav1.ObjectMeta{
|
||||||
|
Name: name + "-pod",
|
||||||
|
},
|
||||||
|
Spec: v1.PodSpec{
|
||||||
|
RestartPolicy: v1.RestartPolicyNever,
|
||||||
|
Containers: []v1.Container{
|
||||||
|
{
|
||||||
|
Name: name + "-cnt",
|
||||||
|
Image: busyboxImage,
|
||||||
|
Resources: v1.ResourceRequirements{
|
||||||
|
Requests: v1.ResourceList{
|
||||||
|
v1.ResourceCPU: resource.MustParse(fmt.Sprintf("%d", cpus)),
|
||||||
|
v1.ResourceMemory: resource.MustParse("64Mi"),
|
||||||
|
},
|
||||||
|
Limits: v1.ResourceList{
|
||||||
|
v1.ResourceCPU: resource.MustParse(fmt.Sprintf("%d", cpus)),
|
||||||
|
v1.ResourceMemory: resource.MustParse("64Mi"),
|
||||||
|
},
|
||||||
|
},
|
||||||
|
Command: []string{"sh", "-c", "sleep", "1d"},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func timelessSample(value interface{}) types.GomegaMatcher {
|
||||||
|
return gstruct.PointTo(gstruct.MatchAllFields(gstruct.Fields{
|
||||||
|
// We already check Metric when matching the Id
|
||||||
|
"Metric": gstruct.Ignore(),
|
||||||
|
"Value": gomega.BeNumerically("==", value),
|
||||||
|
"Timestamp": gstruct.Ignore(),
|
||||||
|
}))
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user