e10042d22f
This also incorporates the version string into the package name so that incompatibile versions will fail to connect. Arbitrary choices: - The proto3 package name is runtime.v1alpha2. The proto compiler normally translates this to a go package of "runtime_v1alpha2", but I renamed it to "v1alpha2" for consistency with existing packages. - kubelet/apis/cri is used as "internalapi". I left it alone and put the public "runtimeapi" in kubelet/apis/cri/runtime.
419 lines
16 KiB
Go
419 lines
16 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package stats
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import (
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"math/rand"
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"testing"
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"time"
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cadvisorfs "github.com/google/cadvisor/fs"
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cadvisorapiv2 "github.com/google/cadvisor/info/v2"
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"github.com/stretchr/testify/assert"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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runtimeapi "k8s.io/kubernetes/pkg/kubelet/apis/cri/runtime/v1alpha2"
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critest "k8s.io/kubernetes/pkg/kubelet/apis/cri/testing"
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statsapi "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1"
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cadvisortest "k8s.io/kubernetes/pkg/kubelet/cadvisor/testing"
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kubecontainertest "k8s.io/kubernetes/pkg/kubelet/container/testing"
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"k8s.io/kubernetes/pkg/kubelet/leaky"
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kubepodtest "k8s.io/kubernetes/pkg/kubelet/pod/testing"
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serverstats "k8s.io/kubernetes/pkg/kubelet/server/stats"
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)
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func TestCRIListPodStats(t *testing.T) {
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const (
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seedRoot = 0
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seedKubelet = 200
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seedMisc = 300
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seedSandbox0 = 1000
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seedContainer0 = 2000
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seedSandbox1 = 3000
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seedContainer1 = 4000
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seedContainer2 = 5000
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seedSandbox2 = 6000
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seedContainer3 = 7000
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)
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const (
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pName0 = "pod0"
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pName1 = "pod1"
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pName2 = "pod2"
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)
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const (
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cName0 = "container0-name"
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cName1 = "container1-name"
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cName2 = "container2-name"
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cName3 = "container3-name"
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)
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var (
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imageFsStorageUUID = "imagefs-storage-uuid"
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unknownStorageUUID = "unknown-storage-uuid"
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imageFsInfo = getTestFsInfo(2000)
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rootFsInfo = getTestFsInfo(1000)
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sandbox0 = makeFakePodSandbox("sandbox0-name", "sandbox0-uid", "sandbox0-ns")
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container0 = makeFakeContainer(sandbox0, cName0, 0, false)
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containerStats0 = makeFakeContainerStats(container0, imageFsStorageUUID)
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container1 = makeFakeContainer(sandbox0, cName1, 0, false)
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containerStats1 = makeFakeContainerStats(container1, unknownStorageUUID)
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sandbox1 = makeFakePodSandbox("sandbox1-name", "sandbox1-uid", "sandbox1-ns")
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container2 = makeFakeContainer(sandbox1, cName2, 0, false)
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containerStats2 = makeFakeContainerStats(container2, imageFsStorageUUID)
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sandbox2 = makeFakePodSandbox("sandbox2-name", "sandbox2-uid", "sandbox2-ns")
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container3 = makeFakeContainer(sandbox2, cName3, 0, true)
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containerStats3 = makeFakeContainerStats(container3, imageFsStorageUUID)
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container4 = makeFakeContainer(sandbox2, cName3, 1, false)
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containerStats4 = makeFakeContainerStats(container4, imageFsStorageUUID)
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)
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var (
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mockCadvisor = new(cadvisortest.Mock)
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mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
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mockPodManager = new(kubepodtest.MockManager)
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resourceAnalyzer = new(fakeResourceAnalyzer)
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fakeRuntimeService = critest.NewFakeRuntimeService()
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fakeImageService = critest.NewFakeImageService()
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)
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infos := map[string]cadvisorapiv2.ContainerInfo{
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"/": getTestContainerInfo(seedRoot, "", "", ""),
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"/kubelet": getTestContainerInfo(seedKubelet, "", "", ""),
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"/system": getTestContainerInfo(seedMisc, "", "", ""),
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sandbox0.PodSandboxStatus.Id: getTestContainerInfo(seedSandbox0, pName0, sandbox0.PodSandboxStatus.Metadata.Namespace, leaky.PodInfraContainerName),
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container0.ContainerStatus.Id: getTestContainerInfo(seedContainer0, pName0, sandbox0.PodSandboxStatus.Metadata.Namespace, cName0),
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container1.ContainerStatus.Id: getTestContainerInfo(seedContainer1, pName0, sandbox0.PodSandboxStatus.Metadata.Namespace, cName1),
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sandbox1.PodSandboxStatus.Id: getTestContainerInfo(seedSandbox1, pName1, sandbox1.PodSandboxStatus.Metadata.Namespace, leaky.PodInfraContainerName),
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container2.ContainerStatus.Id: getTestContainerInfo(seedContainer2, pName1, sandbox1.PodSandboxStatus.Metadata.Namespace, cName2),
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sandbox2.PodSandboxStatus.Id: getTestContainerInfo(seedSandbox2, pName2, sandbox2.PodSandboxStatus.Metadata.Namespace, leaky.PodInfraContainerName),
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container4.ContainerStatus.Id: getTestContainerInfo(seedContainer3, pName2, sandbox2.PodSandboxStatus.Metadata.Namespace, cName3),
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}
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options := cadvisorapiv2.RequestOptions{
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IdType: cadvisorapiv2.TypeName,
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Count: 2,
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Recursive: true,
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}
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mockCadvisor.
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On("ContainerInfoV2", "/", options).Return(infos, nil).
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On("RootFsInfo").Return(rootFsInfo, nil).
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On("GetFsInfoByFsUUID", imageFsStorageUUID).Return(imageFsInfo, nil).
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On("GetFsInfoByFsUUID", unknownStorageUUID).Return(cadvisorapiv2.FsInfo{}, cadvisorfs.ErrNoSuchDevice)
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fakeRuntimeService.SetFakeSandboxes([]*critest.FakePodSandbox{
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sandbox0, sandbox1, sandbox2,
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})
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fakeRuntimeService.SetFakeContainers([]*critest.FakeContainer{
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container0, container1, container2, container3, container4,
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})
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fakeRuntimeService.SetFakeContainerStats([]*runtimeapi.ContainerStats{
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containerStats0, containerStats1, containerStats2, containerStats3, containerStats4,
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})
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ephemeralVolumes := makeFakeVolumeStats([]string{"ephVolume1, ephVolumes2"})
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persistentVolumes := makeFakeVolumeStats([]string{"persisVolume1, persisVolumes2"})
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resourceAnalyzer.podVolumeStats = serverstats.PodVolumeStats{
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EphemeralVolumes: ephemeralVolumes,
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PersistentVolumes: persistentVolumes,
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}
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provider := NewCRIStatsProvider(
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mockCadvisor,
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resourceAnalyzer,
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mockPodManager,
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mockRuntimeCache,
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fakeRuntimeService,
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fakeImageService)
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stats, err := provider.ListPodStats()
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assert := assert.New(t)
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assert.NoError(err)
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assert.Equal(3, len(stats))
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podStatsMap := make(map[statsapi.PodReference]statsapi.PodStats)
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for _, s := range stats {
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podStatsMap[s.PodRef] = s
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}
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p0 := podStatsMap[statsapi.PodReference{Name: "sandbox0-name", UID: "sandbox0-uid", Namespace: "sandbox0-ns"}]
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assert.Equal(sandbox0.CreatedAt, p0.StartTime.UnixNano())
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assert.Equal(2, len(p0.Containers))
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checkEphemeralStorageStats(assert, p0, ephemeralVolumes, []*runtimeapi.ContainerStats{containerStats0, containerStats1})
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containerStatsMap := make(map[string]statsapi.ContainerStats)
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for _, s := range p0.Containers {
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containerStatsMap[s.Name] = s
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}
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c0 := containerStatsMap[cName0]
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assert.Equal(container0.CreatedAt, c0.StartTime.UnixNano())
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checkCRICPUAndMemoryStats(assert, c0, infos[container0.ContainerStatus.Id].Stats[0])
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checkCRIRootfsStats(assert, c0, containerStats0, &imageFsInfo)
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checkCRILogsStats(assert, c0, &rootFsInfo)
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c1 := containerStatsMap[cName1]
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assert.Equal(container1.CreatedAt, c1.StartTime.UnixNano())
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checkCRICPUAndMemoryStats(assert, c1, infos[container1.ContainerStatus.Id].Stats[0])
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checkCRIRootfsStats(assert, c1, containerStats1, nil)
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checkCRILogsStats(assert, c1, &rootFsInfo)
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checkCRINetworkStats(assert, p0.Network, infos[sandbox0.PodSandboxStatus.Id].Stats[0].Network)
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p1 := podStatsMap[statsapi.PodReference{Name: "sandbox1-name", UID: "sandbox1-uid", Namespace: "sandbox1-ns"}]
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assert.Equal(sandbox1.CreatedAt, p1.StartTime.UnixNano())
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assert.Equal(1, len(p1.Containers))
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checkEphemeralStorageStats(assert, p1, ephemeralVolumes, []*runtimeapi.ContainerStats{containerStats2})
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c2 := p1.Containers[0]
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assert.Equal(cName2, c2.Name)
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assert.Equal(container2.CreatedAt, c2.StartTime.UnixNano())
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checkCRICPUAndMemoryStats(assert, c2, infos[container2.ContainerStatus.Id].Stats[0])
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checkCRIRootfsStats(assert, c2, containerStats2, &imageFsInfo)
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checkCRILogsStats(assert, c2, &rootFsInfo)
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checkCRINetworkStats(assert, p1.Network, infos[sandbox1.PodSandboxStatus.Id].Stats[0].Network)
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p2 := podStatsMap[statsapi.PodReference{Name: "sandbox2-name", UID: "sandbox2-uid", Namespace: "sandbox2-ns"}]
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assert.Equal(sandbox2.CreatedAt, p2.StartTime.UnixNano())
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assert.Equal(1, len(p2.Containers))
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checkEphemeralStorageStats(assert, p2, ephemeralVolumes, []*runtimeapi.ContainerStats{containerStats4})
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c3 := p2.Containers[0]
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assert.Equal(cName3, c3.Name)
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assert.Equal(container4.CreatedAt, c3.StartTime.UnixNano())
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checkCRICPUAndMemoryStats(assert, c3, infos[container4.ContainerStatus.Id].Stats[0])
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checkCRIRootfsStats(assert, c3, containerStats4, &imageFsInfo)
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checkCRILogsStats(assert, c3, &rootFsInfo)
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checkCRINetworkStats(assert, p2.Network, infos[sandbox2.PodSandboxStatus.Id].Stats[0].Network)
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mockCadvisor.AssertExpectations(t)
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}
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func TestCRIImagesFsStats(t *testing.T) {
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var (
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imageFsStorageUUID = "imagefs-storage-uuid"
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imageFsInfo = getTestFsInfo(2000)
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imageFsUsage = makeFakeImageFsUsage(imageFsStorageUUID)
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)
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var (
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mockCadvisor = new(cadvisortest.Mock)
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mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
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mockPodManager = new(kubepodtest.MockManager)
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resourceAnalyzer = new(fakeResourceAnalyzer)
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fakeRuntimeService = critest.NewFakeRuntimeService()
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fakeImageService = critest.NewFakeImageService()
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)
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mockCadvisor.On("GetFsInfoByFsUUID", imageFsStorageUUID).Return(imageFsInfo, nil)
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fakeImageService.SetFakeFilesystemUsage([]*runtimeapi.FilesystemUsage{
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imageFsUsage,
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})
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provider := NewCRIStatsProvider(
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mockCadvisor,
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resourceAnalyzer,
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mockPodManager,
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mockRuntimeCache,
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fakeRuntimeService,
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fakeImageService)
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stats, err := provider.ImageFsStats()
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assert := assert.New(t)
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assert.NoError(err)
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assert.Equal(imageFsUsage.Timestamp, stats.Time.UnixNano())
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assert.Equal(imageFsInfo.Available, *stats.AvailableBytes)
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assert.Equal(imageFsInfo.Capacity, *stats.CapacityBytes)
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assert.Equal(imageFsInfo.InodesFree, stats.InodesFree)
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assert.Equal(imageFsInfo.Inodes, stats.Inodes)
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assert.Equal(imageFsUsage.UsedBytes.Value, *stats.UsedBytes)
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assert.Equal(imageFsUsage.InodesUsed.Value, *stats.InodesUsed)
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mockCadvisor.AssertExpectations(t)
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}
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func makeFakePodSandbox(name, uid, namespace string) *critest.FakePodSandbox {
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p := &critest.FakePodSandbox{
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PodSandboxStatus: runtimeapi.PodSandboxStatus{
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Metadata: &runtimeapi.PodSandboxMetadata{
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Name: name,
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Uid: uid,
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Namespace: namespace,
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},
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State: runtimeapi.PodSandboxState_SANDBOX_READY,
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CreatedAt: time.Now().UnixNano(),
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},
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}
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p.PodSandboxStatus.Id = critest.BuildSandboxName(p.PodSandboxStatus.Metadata)
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return p
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}
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func makeFakeContainer(sandbox *critest.FakePodSandbox, name string, attempt uint32, terminated bool) *critest.FakeContainer {
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sandboxID := sandbox.PodSandboxStatus.Id
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c := &critest.FakeContainer{
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SandboxID: sandboxID,
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ContainerStatus: runtimeapi.ContainerStatus{
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Metadata: &runtimeapi.ContainerMetadata{Name: name, Attempt: attempt},
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Image: &runtimeapi.ImageSpec{},
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ImageRef: "fake-image-ref",
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CreatedAt: time.Now().UnixNano(),
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},
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}
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c.ContainerStatus.Labels = map[string]string{
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"io.kubernetes.pod.name": sandbox.Metadata.Name,
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"io.kubernetes.pod.uid": sandbox.Metadata.Uid,
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"io.kubernetes.pod.namespace": sandbox.Metadata.Namespace,
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"io.kubernetes.container.name": name,
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}
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if terminated {
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c.ContainerStatus.State = runtimeapi.ContainerState_CONTAINER_EXITED
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} else {
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c.ContainerStatus.State = runtimeapi.ContainerState_CONTAINER_RUNNING
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}
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c.ContainerStatus.Id = critest.BuildContainerName(c.ContainerStatus.Metadata, sandboxID)
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return c
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}
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func makeFakeContainerStats(container *critest.FakeContainer, imageFsUUID string) *runtimeapi.ContainerStats {
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containerStats := &runtimeapi.ContainerStats{
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Attributes: &runtimeapi.ContainerAttributes{
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Id: container.ContainerStatus.Id,
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Metadata: container.ContainerStatus.Metadata,
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},
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WritableLayer: &runtimeapi.FilesystemUsage{
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Timestamp: time.Now().UnixNano(),
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StorageId: &runtimeapi.StorageIdentifier{Uuid: imageFsUUID},
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UsedBytes: &runtimeapi.UInt64Value{Value: rand.Uint64() / 100},
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InodesUsed: &runtimeapi.UInt64Value{Value: rand.Uint64() / 100},
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},
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}
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if container.State == runtimeapi.ContainerState_CONTAINER_EXITED {
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containerStats.Cpu = nil
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containerStats.Memory = nil
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} else {
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containerStats.Cpu = &runtimeapi.CpuUsage{
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Timestamp: time.Now().UnixNano(),
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UsageCoreNanoSeconds: &runtimeapi.UInt64Value{Value: rand.Uint64()},
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}
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containerStats.Memory = &runtimeapi.MemoryUsage{
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Timestamp: time.Now().UnixNano(),
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WorkingSetBytes: &runtimeapi.UInt64Value{Value: rand.Uint64()},
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}
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}
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return containerStats
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}
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func makeFakeImageFsUsage(fsUUID string) *runtimeapi.FilesystemUsage {
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return &runtimeapi.FilesystemUsage{
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Timestamp: time.Now().UnixNano(),
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StorageId: &runtimeapi.StorageIdentifier{Uuid: fsUUID},
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UsedBytes: &runtimeapi.UInt64Value{Value: rand.Uint64()},
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InodesUsed: &runtimeapi.UInt64Value{Value: rand.Uint64()},
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}
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}
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func makeFakeVolumeStats(volumeNames []string) []statsapi.VolumeStats {
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volumes := make([]statsapi.VolumeStats, len(volumeNames))
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availableBytes := rand.Uint64()
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capacityBytes := rand.Uint64()
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usedBytes := rand.Uint64() / 100
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inodes := rand.Uint64()
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inodesFree := rand.Uint64()
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inodesUsed := rand.Uint64() / 100
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for i, name := range volumeNames {
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fsStats := statsapi.FsStats{
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Time: metav1.NewTime(time.Now()),
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AvailableBytes: &availableBytes,
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CapacityBytes: &capacityBytes,
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UsedBytes: &usedBytes,
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Inodes: &inodes,
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InodesFree: &inodesFree,
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InodesUsed: &inodesUsed,
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}
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volumes[i] = statsapi.VolumeStats{
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FsStats: fsStats,
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Name: name,
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}
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}
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return volumes
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}
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func checkCRICPUAndMemoryStats(assert *assert.Assertions, actual statsapi.ContainerStats, cs *cadvisorapiv2.ContainerStats) {
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assert.Equal(cs.Timestamp.UnixNano(), actual.CPU.Time.UnixNano())
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assert.Equal(cs.Cpu.Usage.Total, *actual.CPU.UsageCoreNanoSeconds)
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assert.Equal(cs.CpuInst.Usage.Total, *actual.CPU.UsageNanoCores)
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assert.Equal(cs.Memory.Usage, *actual.Memory.UsageBytes)
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assert.Equal(cs.Memory.WorkingSet, *actual.Memory.WorkingSetBytes)
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assert.Equal(cs.Memory.RSS, *actual.Memory.RSSBytes)
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assert.Equal(cs.Memory.ContainerData.Pgfault, *actual.Memory.PageFaults)
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assert.Equal(cs.Memory.ContainerData.Pgmajfault, *actual.Memory.MajorPageFaults)
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}
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func checkCRIRootfsStats(assert *assert.Assertions, actual statsapi.ContainerStats, cs *runtimeapi.ContainerStats, imageFsInfo *cadvisorapiv2.FsInfo) {
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assert.Equal(cs.WritableLayer.Timestamp, actual.Rootfs.Time.UnixNano())
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if imageFsInfo != nil {
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assert.Equal(imageFsInfo.Available, *actual.Rootfs.AvailableBytes)
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assert.Equal(imageFsInfo.Capacity, *actual.Rootfs.CapacityBytes)
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assert.Equal(*imageFsInfo.InodesFree, *actual.Rootfs.InodesFree)
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assert.Equal(*imageFsInfo.Inodes, *actual.Rootfs.Inodes)
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} else {
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assert.Nil(actual.Rootfs.AvailableBytes)
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assert.Nil(actual.Rootfs.CapacityBytes)
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assert.Nil(actual.Rootfs.InodesFree)
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assert.Nil(actual.Rootfs.Inodes)
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}
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assert.Equal(cs.WritableLayer.UsedBytes.Value, *actual.Rootfs.UsedBytes)
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assert.Equal(cs.WritableLayer.InodesUsed.Value, *actual.Rootfs.InodesUsed)
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}
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func checkCRILogsStats(assert *assert.Assertions, actual statsapi.ContainerStats, rootFsInfo *cadvisorapiv2.FsInfo) {
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assert.Equal(rootFsInfo.Timestamp, actual.Logs.Time.Time)
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assert.Equal(rootFsInfo.Available, *actual.Logs.AvailableBytes)
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assert.Equal(rootFsInfo.Capacity, *actual.Logs.CapacityBytes)
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assert.Equal(*rootFsInfo.InodesFree, *actual.Logs.InodesFree)
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assert.Equal(*rootFsInfo.Inodes, *actual.Logs.Inodes)
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assert.Nil(actual.Logs.UsedBytes)
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assert.Nil(actual.Logs.InodesUsed)
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}
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func checkEphemeralStorageStats(assert *assert.Assertions, actual statsapi.PodStats, volumes []statsapi.VolumeStats, containers []*runtimeapi.ContainerStats) {
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var totalUsed, inodesUsed uint64
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for _, container := range containers {
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totalUsed = totalUsed + container.WritableLayer.UsedBytes.Value
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inodesUsed = inodesUsed + container.WritableLayer.InodesUsed.Value
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}
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for _, volume := range volumes {
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totalUsed = totalUsed + *volume.FsStats.UsedBytes
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inodesUsed = inodesUsed + *volume.FsStats.InodesUsed
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}
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assert.Equal(int(*actual.EphemeralStorage.UsedBytes), int(totalUsed))
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assert.Equal(int(*actual.EphemeralStorage.InodesUsed), int(inodesUsed))
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}
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func checkCRINetworkStats(assert *assert.Assertions, actual *statsapi.NetworkStats, expected *cadvisorapiv2.NetworkStats) {
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assert.Equal(expected.Interfaces[0].RxBytes, *actual.RxBytes)
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assert.Equal(expected.Interfaces[0].RxErrors, *actual.RxErrors)
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assert.Equal(expected.Interfaces[0].TxBytes, *actual.TxBytes)
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assert.Equal(expected.Interfaces[0].TxErrors, *actual.TxErrors)
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}
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