kubernetes qos_container_manager_linux_test 源码

kubernetes qos_container_manager_linux_test 代码

文件路径：/pkg/kubelet/cm/qos_container_manager_linux_test.go

//go:build linux
// +build linux

/*
Copyright 2021 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 cm

import (
	"fmt"
	"strconv"
	"testing"

	"github.com/stretchr/testify/assert"
	v1 "k8s.io/api/core/v1"
	"k8s.io/apimachinery/pkg/api/resource"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)

func activeTestPods() []*v1.Pod {
	return []*v1.Pod{
		{
			ObjectMeta: metav1.ObjectMeta{
				UID:       "12345678",
				Name:      "guaranteed-pod",
				Namespace: "test",
			},
			Spec: v1.PodSpec{
				Containers: []v1.Container{
					{
						Name:  "foo",
						Image: "busybox",
						Resources: v1.ResourceRequirements{
							Requests: v1.ResourceList{
								v1.ResourceMemory: resource.MustParse("128Mi"),
								v1.ResourceCPU:    resource.MustParse("1"),
							},
							Limits: v1.ResourceList{
								v1.ResourceMemory: resource.MustParse("128Mi"),
								v1.ResourceCPU:    resource.MustParse("1"),
							},
						},
					},
				},
			},
		},
		{
			ObjectMeta: metav1.ObjectMeta{
				UID:       "87654321",
				Name:      "burstable-pod-1",
				Namespace: "test",
			},
			Spec: v1.PodSpec{
				Containers: []v1.Container{
					{
						Name:  "foo",
						Image: "busybox",
						Resources: v1.ResourceRequirements{
							Requests: v1.ResourceList{
								v1.ResourceMemory: resource.MustParse("128Mi"),
								v1.ResourceCPU:    resource.MustParse("1"),
							},
							Limits: v1.ResourceList{
								v1.ResourceMemory: resource.MustParse("256Mi"),
								v1.ResourceCPU:    resource.MustParse("2"),
							},
						},
					},
				},
			},
		},
		{
			ObjectMeta: metav1.ObjectMeta{
				UID:       "01234567",
				Name:      "burstable-pod-2",
				Namespace: "test",
			},
			Spec: v1.PodSpec{
				Containers: []v1.Container{
					{
						Name:  "foo",
						Image: "busybox",
						Resources: v1.ResourceRequirements{
							Requests: v1.ResourceList{
								v1.ResourceMemory: resource.MustParse("256Mi"),
								v1.ResourceCPU:    resource.MustParse("2"),
							},
						},
					},
				},
			},
		},
	}
}

func createTestQOSContainerManager() (*qosContainerManagerImpl, error) {
	subsystems, err := GetCgroupSubsystems()
	if err != nil {
		return nil, fmt.Errorf("failed to get mounted cgroup subsystems: %v", err)
	}

	cgroupRoot := ParseCgroupfsToCgroupName("/")
	cgroupRoot = NewCgroupName(cgroupRoot, defaultNodeAllocatableCgroupName)

	qosContainerManager := &qosContainerManagerImpl{
		subsystems:    subsystems,
		cgroupManager: NewCgroupManager(subsystems, "cgroupfs"),
		cgroupRoot:    cgroupRoot,
		qosReserved:   nil,
	}

	qosContainerManager.activePods = activeTestPods

	return qosContainerManager, nil
}

func TestQoSContainerCgroup(t *testing.T) {
	m, err := createTestQOSContainerManager()
	assert.Nil(t, err)

	qosConfigs := map[v1.PodQOSClass]*CgroupConfig{
		v1.PodQOSGuaranteed: {
			Name:               m.qosContainersInfo.Guaranteed,
			ResourceParameters: &ResourceConfig{},
		},
		v1.PodQOSBurstable: {
			Name:               m.qosContainersInfo.Burstable,
			ResourceParameters: &ResourceConfig{},
		},
		v1.PodQOSBestEffort: {
			Name:               m.qosContainersInfo.BestEffort,
			ResourceParameters: &ResourceConfig{},
		},
	}

	m.setMemoryQoS(qosConfigs)

	burstableMin := resource.MustParse("384Mi")
	guaranteedMin := resource.MustParse("128Mi")
	assert.Equal(t, qosConfigs[v1.PodQOSGuaranteed].ResourceParameters.Unified["memory.min"], strconv.FormatInt(burstableMin.Value()+guaranteedMin.Value(), 10))
	assert.Equal(t, qosConfigs[v1.PodQOSBurstable].ResourceParameters.Unified["memory.min"], strconv.FormatInt(burstableMin.Value(), 10))
}

相关信息

kubernetes 源码目录

相关文章

kubernetes cgroup_manager_linux 源码

kubernetes cgroup_manager_linux_test 源码

kubernetes cgroup_manager_test 源码

kubernetes cgroup_manager_unsupported 源码

kubernetes container_manager 源码

kubernetes container_manager_linux 源码

kubernetes container_manager_linux_test 源码

kubernetes container_manager_stub 源码

kubernetes container_manager_unsupported 源码

kubernetes container_manager_windows 源码