da988294ec
HPA needs metrics for exited init containers before it will take action. By setting memory and CPU usage to zero for any containers that cAdvisor didn't provide statistics for, we are assured that HPA will be able to correctly calculate pod resource usage.
725 lines
25 KiB
Go
725 lines
25 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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"fmt"
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"testing"
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"time"
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cadvisorapiv1 "github.com/google/cadvisor/info/v1"
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cadvisorapiv2 "github.com/google/cadvisor/info/v2"
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fuzz "github.com/google/gofuzz"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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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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kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
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kubecontainertest "k8s.io/kubernetes/pkg/kubelet/container/testing"
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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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kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
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)
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const (
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// Offsets from seed value in generated container stats.
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offsetCPUUsageCores = iota
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offsetCPUUsageCoreSeconds
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offsetMemPageFaults
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offsetMemMajorPageFaults
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offsetMemUsageBytes
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offsetMemRSSBytes
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offsetMemWorkingSetBytes
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offsetNetRxBytes
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offsetNetRxErrors
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offsetNetTxBytes
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offsetNetTxErrors
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offsetFsCapacity
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offsetFsAvailable
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offsetFsUsage
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offsetFsInodes
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offsetFsInodesFree
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offsetFsTotalUsageBytes
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offsetFsBaseUsageBytes
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offsetFsInodeUsage
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)
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var (
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timestamp = time.Now()
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creationTime = timestamp.Add(-5 * time.Minute)
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)
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func TestGetCgroupStats(t *testing.T) {
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const (
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cgroupName = "test-cgroup-name"
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containerInfoSeed = 1000
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updateStats = false
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)
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var (
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mockCadvisor = new(cadvisortest.Mock)
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mockPodManager = new(kubepodtest.MockManager)
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mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
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assert = assert.New(t)
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options = cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false}
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containerInfo = getTestContainerInfo(containerInfoSeed, "test-pod", "test-ns", "test-container")
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containerInfoMap = map[string]cadvisorapiv2.ContainerInfo{cgroupName: containerInfo}
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)
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mockCadvisor.On("ContainerInfoV2", cgroupName, options).Return(containerInfoMap, nil)
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provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
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cs, ns, err := provider.GetCgroupStats(cgroupName, updateStats)
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assert.NoError(err)
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checkCPUStats(t, "", containerInfoSeed, cs.CPU)
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checkMemoryStats(t, "", containerInfoSeed, containerInfo, cs.Memory)
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checkNetworkStats(t, "", containerInfoSeed, ns)
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assert.Equal(cgroupName, cs.Name)
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assert.Equal(metav1.NewTime(containerInfo.Spec.CreationTime), cs.StartTime)
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mockCadvisor.AssertExpectations(t)
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}
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func TestGetCgroupCPUAndMemoryStats(t *testing.T) {
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const (
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cgroupName = "test-cgroup-name"
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containerInfoSeed = 1000
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updateStats = false
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)
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var (
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mockCadvisor = new(cadvisortest.Mock)
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mockPodManager = new(kubepodtest.MockManager)
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mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
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assert = assert.New(t)
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options = cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false}
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containerInfo = getTestContainerInfo(containerInfoSeed, "test-pod", "test-ns", "test-container")
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containerInfoMap = map[string]cadvisorapiv2.ContainerInfo{cgroupName: containerInfo}
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)
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mockCadvisor.On("ContainerInfoV2", cgroupName, options).Return(containerInfoMap, nil)
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provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
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cs, err := provider.GetCgroupCPUAndMemoryStats(cgroupName, updateStats)
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assert.NoError(err)
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checkCPUStats(t, "", containerInfoSeed, cs.CPU)
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checkMemoryStats(t, "", containerInfoSeed, containerInfo, cs.Memory)
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assert.Equal(cgroupName, cs.Name)
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assert.Equal(metav1.NewTime(containerInfo.Spec.CreationTime), cs.StartTime)
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mockCadvisor.AssertExpectations(t)
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}
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func TestRootFsStats(t *testing.T) {
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const (
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rootFsInfoSeed = 1000
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containerInfoSeed = 2000
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)
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var (
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mockCadvisor = new(cadvisortest.Mock)
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mockPodManager = new(kubepodtest.MockManager)
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mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
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assert = assert.New(t)
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options = cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false}
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rootFsInfo = getTestFsInfo(rootFsInfoSeed)
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containerInfo = getTestContainerInfo(containerInfoSeed, "test-pod", "test-ns", "test-container")
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containerInfoMap = map[string]cadvisorapiv2.ContainerInfo{"/": containerInfo}
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)
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mockCadvisor.
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On("RootFsInfo").Return(rootFsInfo, nil).
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On("ContainerInfoV2", "/", options).Return(containerInfoMap, nil)
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provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
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stats, err := provider.RootFsStats()
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assert.NoError(err)
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checkFsStats(t, "", rootFsInfoSeed, stats)
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assert.Equal(metav1.NewTime(containerInfo.Stats[0].Timestamp), stats.Time)
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assert.Equal(rootFsInfo.Usage, *stats.UsedBytes)
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assert.Equal(*rootFsInfo.Inodes-*rootFsInfo.InodesFree, *stats.InodesUsed)
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mockCadvisor.AssertExpectations(t)
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}
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func TestGetContainerInfo(t *testing.T) {
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cadvisorAPIFailure := fmt.Errorf("cAdvisor failure")
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runtimeError := fmt.Errorf("List containers error")
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tests := []struct {
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name string
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containerID string
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containerPath string
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cadvisorContainerInfo cadvisorapiv1.ContainerInfo
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runtimeError error
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podList []*kubecontainer.Pod
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requestedPodFullName string
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requestedPodUID types.UID
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requestedContainerName string
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expectDockerContainerCall bool
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mockError error
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expectedError error
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expectStats bool
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}{
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{
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name: "get container info",
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containerID: "ab2cdf",
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containerPath: "/docker/ab2cdf",
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cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{
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ContainerReference: cadvisorapiv1.ContainerReference{
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Name: "/docker/ab2cdf",
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},
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},
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runtimeError: nil,
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podList: []*kubecontainer.Pod{
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{
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ID: "12345678",
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Name: "qux",
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Namespace: "ns",
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Containers: []*kubecontainer.Container{
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{
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Name: "foo",
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ID: kubecontainer.ContainerID{Type: "test", ID: "ab2cdf"},
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},
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},
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},
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},
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requestedPodFullName: "qux_ns",
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requestedPodUID: "",
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requestedContainerName: "foo",
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expectDockerContainerCall: true,
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mockError: nil,
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expectedError: nil,
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expectStats: true,
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},
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{
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name: "get container info when cadvisor failed",
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containerID: "ab2cdf",
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containerPath: "/docker/ab2cdf",
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cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
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runtimeError: nil,
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podList: []*kubecontainer.Pod{
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{
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ID: "uuid",
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Name: "qux",
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Namespace: "ns",
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Containers: []*kubecontainer.Container{
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{
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Name: "foo",
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ID: kubecontainer.ContainerID{Type: "test", ID: "ab2cdf"},
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},
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},
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},
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},
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requestedPodFullName: "qux_ns",
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requestedPodUID: "uuid",
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requestedContainerName: "foo",
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expectDockerContainerCall: true,
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mockError: cadvisorAPIFailure,
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expectedError: cadvisorAPIFailure,
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expectStats: false,
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},
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{
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name: "get container info on non-existent container",
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containerID: "",
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containerPath: "",
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cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
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runtimeError: nil,
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podList: []*kubecontainer.Pod{},
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requestedPodFullName: "qux",
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requestedPodUID: "",
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requestedContainerName: "foo",
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expectDockerContainerCall: false,
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mockError: nil,
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expectedError: kubecontainer.ErrContainerNotFound,
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expectStats: false,
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},
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{
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name: "get container info when container runtime failed",
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containerID: "",
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containerPath: "",
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cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
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runtimeError: runtimeError,
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podList: []*kubecontainer.Pod{},
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requestedPodFullName: "qux",
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requestedPodUID: "",
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requestedContainerName: "foo",
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mockError: nil,
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expectedError: runtimeError,
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expectStats: false,
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},
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{
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name: "get container info with no containers",
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containerID: "",
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containerPath: "",
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cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
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runtimeError: nil,
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podList: []*kubecontainer.Pod{},
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requestedPodFullName: "qux_ns",
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requestedPodUID: "",
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requestedContainerName: "foo",
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mockError: nil,
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expectedError: kubecontainer.ErrContainerNotFound,
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expectStats: false,
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},
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{
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name: "get container info with no matching containers",
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containerID: "",
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containerPath: "",
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cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
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runtimeError: nil,
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podList: []*kubecontainer.Pod{
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{
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ID: "12345678",
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Name: "qux",
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Namespace: "ns",
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Containers: []*kubecontainer.Container{
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{
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Name: "bar",
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ID: kubecontainer.ContainerID{Type: "test", ID: "fakeID"},
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},
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},
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},
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},
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requestedPodFullName: "qux_ns",
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requestedPodUID: "",
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requestedContainerName: "foo",
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mockError: nil,
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expectedError: kubecontainer.ErrContainerNotFound,
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expectStats: false,
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},
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}
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for _, tc := range tests {
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var (
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mockCadvisor = new(cadvisortest.Mock)
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mockPodManager = new(kubepodtest.MockManager)
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mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
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cadvisorReq = &cadvisorapiv1.ContainerInfoRequest{}
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)
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mockPodManager.On("TranslatePodUID", tc.requestedPodUID).Return(kubetypes.ResolvedPodUID(tc.requestedPodUID))
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mockRuntimeCache.On("GetPods").Return(tc.podList, tc.runtimeError)
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if tc.expectDockerContainerCall {
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mockCadvisor.On("DockerContainer", tc.containerID, cadvisorReq).Return(tc.cadvisorContainerInfo, tc.mockError)
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}
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provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
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stats, err := provider.GetContainerInfo(tc.requestedPodFullName, tc.requestedPodUID, tc.requestedContainerName, cadvisorReq)
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assert.Equal(t, tc.expectedError, err)
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if tc.expectStats {
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require.NotNil(t, stats)
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}
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mockCadvisor.AssertExpectations(t)
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}
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}
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func TestGetRawContainerInfoRoot(t *testing.T) {
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var (
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mockCadvisor = new(cadvisortest.Mock)
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mockPodManager = new(kubepodtest.MockManager)
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mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
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cadvisorReq = &cadvisorapiv1.ContainerInfoRequest{}
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containerPath = "/"
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containerInfo = &cadvisorapiv1.ContainerInfo{
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ContainerReference: cadvisorapiv1.ContainerReference{
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Name: containerPath,
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},
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}
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)
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mockCadvisor.On("ContainerInfo", containerPath, cadvisorReq).Return(containerInfo, nil)
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provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
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_, err := provider.GetRawContainerInfo(containerPath, cadvisorReq, false)
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assert.NoError(t, err)
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mockCadvisor.AssertExpectations(t)
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}
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func TestGetRawContainerInfoSubcontainers(t *testing.T) {
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var (
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mockCadvisor = new(cadvisortest.Mock)
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mockPodManager = new(kubepodtest.MockManager)
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mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
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cadvisorReq = &cadvisorapiv1.ContainerInfoRequest{}
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containerPath = "/kubelet"
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containerInfo = map[string]*cadvisorapiv1.ContainerInfo{
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containerPath: {
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ContainerReference: cadvisorapiv1.ContainerReference{
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Name: containerPath,
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},
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},
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"/kubelet/sub": {
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ContainerReference: cadvisorapiv1.ContainerReference{
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Name: "/kubelet/sub",
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},
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},
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}
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)
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mockCadvisor.On("SubcontainerInfo", containerPath, cadvisorReq).Return(containerInfo, nil)
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provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
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result, err := provider.GetRawContainerInfo(containerPath, cadvisorReq, true)
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assert.NoError(t, err)
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assert.Len(t, result, 2)
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mockCadvisor.AssertExpectations(t)
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}
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func TestHasDedicatedImageFs(t *testing.T) {
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for desc, test := range map[string]struct {
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rootfsDevice string
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imagefsDevice string
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dedicated bool
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}{
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"dedicated device for image filesystem": {
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rootfsDevice: "root/device",
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imagefsDevice: "image/device",
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dedicated: true,
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},
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"shared device for image filesystem": {
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rootfsDevice: "share/device",
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imagefsDevice: "share/device",
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dedicated: false,
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},
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} {
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t.Logf("TestCase %q", desc)
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var (
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mockCadvisor = new(cadvisortest.Mock)
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mockPodManager = new(kubepodtest.MockManager)
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mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
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)
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mockCadvisor.On("RootFsInfo").Return(cadvisorapiv2.FsInfo{Device: test.rootfsDevice}, nil)
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provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{
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device: test.imagefsDevice,
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})
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dedicated, err := provider.HasDedicatedImageFs()
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assert.NoError(t, err)
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assert.Equal(t, test.dedicated, dedicated)
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mockCadvisor.AssertExpectations(t)
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}
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}
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func getTerminatedContainerInfo(seed int, podName string, podNamespace string, containerName string) cadvisorapiv2.ContainerInfo {
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cinfo := getTestContainerInfo(seed, podName, podNamespace, containerName)
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cinfo.Stats[0].Memory.RSS = 0
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cinfo.Stats[0].CpuInst.Usage.Total = 0
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return cinfo
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}
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|
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func getTestContainerInfo(seed int, podName string, podNamespace string, containerName string) cadvisorapiv2.ContainerInfo {
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labels := map[string]string{}
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if podName != "" {
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labels = map[string]string{
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"io.kubernetes.pod.name": podName,
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"io.kubernetes.pod.uid": "UID" + podName,
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"io.kubernetes.pod.namespace": podNamespace,
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"io.kubernetes.container.name": containerName,
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}
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}
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// by default, kernel will set memory.limit_in_bytes to 1 << 63 if not bounded
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unlimitedMemory := uint64(1 << 63)
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spec := cadvisorapiv2.ContainerSpec{
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CreationTime: testTime(creationTime, seed),
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HasCpu: true,
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HasMemory: true,
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HasNetwork: true,
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Labels: labels,
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Memory: cadvisorapiv2.MemorySpec{
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Limit: unlimitedMemory,
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},
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CustomMetrics: generateCustomMetricSpec(),
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}
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totalUsageBytes := uint64(seed + offsetFsTotalUsageBytes)
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baseUsageBytes := uint64(seed + offsetFsBaseUsageBytes)
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inodeUsage := uint64(seed + offsetFsInodeUsage)
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stats := cadvisorapiv2.ContainerStats{
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Timestamp: testTime(timestamp, seed),
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Cpu: &cadvisorapiv1.CpuStats{},
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CpuInst: &cadvisorapiv2.CpuInstStats{},
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Memory: &cadvisorapiv1.MemoryStats{
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Usage: uint64(seed + offsetMemUsageBytes),
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WorkingSet: uint64(seed + offsetMemWorkingSetBytes),
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RSS: uint64(seed + offsetMemRSSBytes),
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ContainerData: cadvisorapiv1.MemoryStatsMemoryData{
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Pgfault: uint64(seed + offsetMemPageFaults),
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Pgmajfault: uint64(seed + offsetMemMajorPageFaults),
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},
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},
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Network: &cadvisorapiv2.NetworkStats{
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Interfaces: []cadvisorapiv1.InterfaceStats{{
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Name: "eth0",
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RxBytes: uint64(seed + offsetNetRxBytes),
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RxErrors: uint64(seed + offsetNetRxErrors),
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TxBytes: uint64(seed + offsetNetTxBytes),
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TxErrors: uint64(seed + offsetNetTxErrors),
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}, {
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Name: "cbr0",
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RxBytes: 100,
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RxErrors: 100,
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TxBytes: 100,
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TxErrors: 100,
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}},
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},
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CustomMetrics: generateCustomMetrics(spec.CustomMetrics),
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Filesystem: &cadvisorapiv2.FilesystemStats{
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TotalUsageBytes: &totalUsageBytes,
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BaseUsageBytes: &baseUsageBytes,
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InodeUsage: &inodeUsage,
|
|
},
|
|
}
|
|
stats.Cpu.Usage.Total = uint64(seed + offsetCPUUsageCoreSeconds)
|
|
stats.CpuInst.Usage.Total = uint64(seed + offsetCPUUsageCores)
|
|
return cadvisorapiv2.ContainerInfo{
|
|
Spec: spec,
|
|
Stats: []*cadvisorapiv2.ContainerStats{&stats},
|
|
}
|
|
}
|
|
|
|
func getTestFsInfo(seed int) cadvisorapiv2.FsInfo {
|
|
var (
|
|
inodes = uint64(seed + offsetFsInodes)
|
|
inodesFree = uint64(seed + offsetFsInodesFree)
|
|
)
|
|
return cadvisorapiv2.FsInfo{
|
|
Timestamp: time.Now(),
|
|
Device: "test-device",
|
|
Mountpoint: "test-mount-point",
|
|
Capacity: uint64(seed + offsetFsCapacity),
|
|
Available: uint64(seed + offsetFsAvailable),
|
|
Usage: uint64(seed + offsetFsUsage),
|
|
Inodes: &inodes,
|
|
InodesFree: &inodesFree,
|
|
}
|
|
}
|
|
|
|
func getPodVolumeStats(seed int, volumeName string) statsapi.VolumeStats {
|
|
availableBytes := uint64(seed + offsetFsAvailable)
|
|
capacityBytes := uint64(seed + offsetFsCapacity)
|
|
usedBytes := uint64(seed + offsetFsUsage)
|
|
inodes := uint64(seed + offsetFsInodes)
|
|
inodesFree := uint64(seed + offsetFsInodesFree)
|
|
inodesUsed := uint64(seed + offsetFsInodeUsage)
|
|
fsStats := statsapi.FsStats{
|
|
Time: metav1.NewTime(time.Now()),
|
|
AvailableBytes: &availableBytes,
|
|
CapacityBytes: &capacityBytes,
|
|
UsedBytes: &usedBytes,
|
|
Inodes: &inodes,
|
|
InodesFree: &inodesFree,
|
|
InodesUsed: &inodesUsed,
|
|
}
|
|
return statsapi.VolumeStats{
|
|
FsStats: fsStats,
|
|
Name: volumeName,
|
|
}
|
|
}
|
|
|
|
func generateCustomMetricSpec() []cadvisorapiv1.MetricSpec {
|
|
f := fuzz.New().NilChance(0).Funcs(
|
|
func(e *cadvisorapiv1.MetricSpec, c fuzz.Continue) {
|
|
c.Fuzz(&e.Name)
|
|
switch c.Intn(3) {
|
|
case 0:
|
|
e.Type = cadvisorapiv1.MetricGauge
|
|
case 1:
|
|
e.Type = cadvisorapiv1.MetricCumulative
|
|
case 2:
|
|
e.Type = cadvisorapiv1.MetricDelta
|
|
}
|
|
switch c.Intn(2) {
|
|
case 0:
|
|
e.Format = cadvisorapiv1.IntType
|
|
case 1:
|
|
e.Format = cadvisorapiv1.FloatType
|
|
}
|
|
c.Fuzz(&e.Units)
|
|
})
|
|
var ret []cadvisorapiv1.MetricSpec
|
|
f.Fuzz(&ret)
|
|
return ret
|
|
}
|
|
|
|
func generateCustomMetrics(spec []cadvisorapiv1.MetricSpec) map[string][]cadvisorapiv1.MetricVal {
|
|
ret := map[string][]cadvisorapiv1.MetricVal{}
|
|
for _, metricSpec := range spec {
|
|
f := fuzz.New().NilChance(0).Funcs(
|
|
func(e *cadvisorapiv1.MetricVal, c fuzz.Continue) {
|
|
switch metricSpec.Format {
|
|
case cadvisorapiv1.IntType:
|
|
c.Fuzz(&e.IntValue)
|
|
case cadvisorapiv1.FloatType:
|
|
c.Fuzz(&e.FloatValue)
|
|
}
|
|
})
|
|
|
|
var metrics []cadvisorapiv1.MetricVal
|
|
f.Fuzz(&metrics)
|
|
ret[metricSpec.Name] = metrics
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func testTime(base time.Time, seed int) time.Time {
|
|
return base.Add(time.Duration(seed) * time.Second)
|
|
}
|
|
|
|
func checkNetworkStats(t *testing.T, label string, seed int, stats *statsapi.NetworkStats) {
|
|
assert.NotNil(t, stats)
|
|
assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".Net.Time")
|
|
assert.EqualValues(t, "eth0", stats.Name, "default interface name is not eth0")
|
|
assert.EqualValues(t, seed+offsetNetRxBytes, *stats.RxBytes, label+".Net.RxBytes")
|
|
assert.EqualValues(t, seed+offsetNetRxErrors, *stats.RxErrors, label+".Net.RxErrors")
|
|
assert.EqualValues(t, seed+offsetNetTxBytes, *stats.TxBytes, label+".Net.TxBytes")
|
|
assert.EqualValues(t, seed+offsetNetTxErrors, *stats.TxErrors, label+".Net.TxErrors")
|
|
|
|
assert.EqualValues(t, 2, len(stats.Interfaces), "network interfaces should contain 2 elements")
|
|
|
|
assert.EqualValues(t, "eth0", stats.Interfaces[0].Name, "default interface name is not eth0")
|
|
assert.EqualValues(t, seed+offsetNetRxBytes, *stats.Interfaces[0].RxBytes, label+".Net.TxErrors")
|
|
assert.EqualValues(t, seed+offsetNetRxErrors, *stats.Interfaces[0].RxErrors, label+".Net.TxErrors")
|
|
assert.EqualValues(t, seed+offsetNetTxBytes, *stats.Interfaces[0].TxBytes, label+".Net.TxErrors")
|
|
assert.EqualValues(t, seed+offsetNetTxErrors, *stats.Interfaces[0].TxErrors, label+".Net.TxErrors")
|
|
|
|
assert.EqualValues(t, "cbr0", stats.Interfaces[1].Name, "cbr0 interface name is not cbr0")
|
|
assert.EqualValues(t, 100, *stats.Interfaces[1].RxBytes, label+".Net.TxErrors")
|
|
assert.EqualValues(t, 100, *stats.Interfaces[1].RxErrors, label+".Net.TxErrors")
|
|
assert.EqualValues(t, 100, *stats.Interfaces[1].TxBytes, label+".Net.TxErrors")
|
|
assert.EqualValues(t, 100, *stats.Interfaces[1].TxErrors, label+".Net.TxErrors")
|
|
|
|
}
|
|
|
|
// container which had no stats should have zero-valued CPU usage
|
|
func checkEmptyCPUStats(t *testing.T, label string, seed int, stats *statsapi.CPUStats) {
|
|
require.NotNil(t, stats.Time, label+".CPU.Time")
|
|
require.NotNil(t, stats.UsageNanoCores, label+".CPU.UsageNanoCores")
|
|
require.NotNil(t, stats.UsageNanoCores, label+".CPU.UsageCoreSeconds")
|
|
assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".CPU.Time")
|
|
assert.EqualValues(t, 0, *stats.UsageNanoCores, label+".CPU.UsageCores")
|
|
assert.EqualValues(t, 0, *stats.UsageCoreNanoSeconds, label+".CPU.UsageCoreSeconds")
|
|
}
|
|
|
|
// container which had no stats should have zero-valued Memory usage
|
|
func checkEmptyMemoryStats(t *testing.T, label string, seed int, info cadvisorapiv2.ContainerInfo, stats *statsapi.MemoryStats) {
|
|
assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".Mem.Time")
|
|
require.NotNil(t, stats.WorkingSetBytes, label+".Mem.WorkingSetBytes")
|
|
assert.EqualValues(t, 0, *stats.WorkingSetBytes, label+".Mem.WorkingSetBytes")
|
|
assert.Nil(t, stats.UsageBytes, label+".Mem.UsageBytes")
|
|
assert.Nil(t, stats.RSSBytes, label+".Mem.RSSBytes")
|
|
assert.Nil(t, stats.PageFaults, label+".Mem.PageFaults")
|
|
assert.Nil(t, stats.MajorPageFaults, label+".Mem.MajorPageFaults")
|
|
assert.Nil(t, stats.AvailableBytes, label+".Mem.AvailableBytes")
|
|
}
|
|
|
|
func checkCPUStats(t *testing.T, label string, seed int, stats *statsapi.CPUStats) {
|
|
require.NotNil(t, stats.Time, label+".CPU.Time")
|
|
require.NotNil(t, stats.UsageNanoCores, label+".CPU.UsageNanoCores")
|
|
require.NotNil(t, stats.UsageNanoCores, label+".CPU.UsageCoreSeconds")
|
|
assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".CPU.Time")
|
|
assert.EqualValues(t, seed+offsetCPUUsageCores, *stats.UsageNanoCores, label+".CPU.UsageCores")
|
|
assert.EqualValues(t, seed+offsetCPUUsageCoreSeconds, *stats.UsageCoreNanoSeconds, label+".CPU.UsageCoreSeconds")
|
|
}
|
|
|
|
func checkMemoryStats(t *testing.T, label string, seed int, info cadvisorapiv2.ContainerInfo, stats *statsapi.MemoryStats) {
|
|
assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".Mem.Time")
|
|
assert.EqualValues(t, seed+offsetMemUsageBytes, *stats.UsageBytes, label+".Mem.UsageBytes")
|
|
assert.EqualValues(t, seed+offsetMemWorkingSetBytes, *stats.WorkingSetBytes, label+".Mem.WorkingSetBytes")
|
|
assert.EqualValues(t, seed+offsetMemRSSBytes, *stats.RSSBytes, label+".Mem.RSSBytes")
|
|
assert.EqualValues(t, seed+offsetMemPageFaults, *stats.PageFaults, label+".Mem.PageFaults")
|
|
assert.EqualValues(t, seed+offsetMemMajorPageFaults, *stats.MajorPageFaults, label+".Mem.MajorPageFaults")
|
|
if !info.Spec.HasMemory || isMemoryUnlimited(info.Spec.Memory.Limit) {
|
|
assert.Nil(t, stats.AvailableBytes, label+".Mem.AvailableBytes")
|
|
} else {
|
|
expected := info.Spec.Memory.Limit - *stats.WorkingSetBytes
|
|
assert.EqualValues(t, expected, *stats.AvailableBytes, label+".Mem.AvailableBytes")
|
|
}
|
|
}
|
|
|
|
func checkFsStats(t *testing.T, label string, seed int, stats *statsapi.FsStats) {
|
|
assert.EqualValues(t, seed+offsetFsCapacity, *stats.CapacityBytes, label+".CapacityBytes")
|
|
assert.EqualValues(t, seed+offsetFsAvailable, *stats.AvailableBytes, label+".AvailableBytes")
|
|
assert.EqualValues(t, seed+offsetFsInodes, *stats.Inodes, label+".Inodes")
|
|
assert.EqualValues(t, seed+offsetFsInodesFree, *stats.InodesFree, label+".InodesFree")
|
|
}
|
|
|
|
func checkEphemeralStats(t *testing.T, label string, containerSeeds []int, volumeSeeds []int, stats *statsapi.FsStats) {
|
|
var usedBytes, inodeUsage int
|
|
for _, cseed := range containerSeeds {
|
|
usedBytes = usedBytes + cseed + offsetFsTotalUsageBytes
|
|
inodeUsage += cseed + offsetFsInodeUsage
|
|
}
|
|
for _, vseed := range volumeSeeds {
|
|
usedBytes = usedBytes + vseed + offsetFsUsage
|
|
inodeUsage += vseed + offsetFsInodeUsage
|
|
}
|
|
assert.EqualValues(t, usedBytes, int(*stats.UsedBytes), label+".UsedBytes")
|
|
assert.EqualValues(t, inodeUsage, int(*stats.InodesUsed), label+".InodesUsed")
|
|
}
|
|
|
|
type fakeResourceAnalyzer struct {
|
|
podVolumeStats serverstats.PodVolumeStats
|
|
}
|
|
|
|
func (o *fakeResourceAnalyzer) Start() {}
|
|
func (o *fakeResourceAnalyzer) Get(bool) (*statsapi.Summary, error) { return nil, nil }
|
|
func (o *fakeResourceAnalyzer) GetCPUAndMemoryStats() (*statsapi.Summary, error) { return nil, nil }
|
|
func (o *fakeResourceAnalyzer) GetPodVolumeStats(uid types.UID) (serverstats.PodVolumeStats, bool) {
|
|
return o.podVolumeStats, true
|
|
}
|
|
|
|
type fakeContainerStatsProvider struct {
|
|
device string
|
|
}
|
|
|
|
func (p fakeContainerStatsProvider) ListPodStats() ([]statsapi.PodStats, error) {
|
|
return nil, fmt.Errorf("not implemented")
|
|
}
|
|
|
|
func (p fakeContainerStatsProvider) ListPodStatsAndUpdateCPUNanoCoreUsage() ([]statsapi.PodStats, error) {
|
|
return nil, fmt.Errorf("not implemented")
|
|
}
|
|
|
|
func (p fakeContainerStatsProvider) ListPodCPUAndMemoryStats() ([]statsapi.PodStats, error) {
|
|
return nil, fmt.Errorf("not implemented")
|
|
}
|
|
|
|
func (p fakeContainerStatsProvider) ImageFsStats() (*statsapi.FsStats, error) {
|
|
return nil, fmt.Errorf("not implemented")
|
|
}
|
|
|
|
func (p fakeContainerStatsProvider) ImageFsDevice() (string, error) {
|
|
return p.device, nil
|
|
}
|