5ad6f34329
Before snapshotter per runtime, CRI only supports a global snapshotter. So a snapshot can be uniquely identified by `snapshot_key`. With snapshotter per runtime enabled, there may be multiple snapshotters used by CRI. So only (snapshotter_id, snapshot_key) can uniquely identify a snapshot. Also extends CRI/store/snapshot/Store to support multiple snapshotters. Signed-off-by: Jiang Liu <gerry@linux.alibaba.com>
610 lines
18 KiB
Go
610 lines
18 KiB
Go
/*
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Copyright The containerd 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 server
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import (
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"testing"
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"time"
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wstats "github.com/Microsoft/hcsshim/cmd/containerd-shim-runhcs-v1/stats"
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containerstore "github.com/containerd/containerd/pkg/cri/store/container"
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sandboxstore "github.com/containerd/containerd/pkg/cri/store/sandbox"
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"github.com/containerd/containerd/pkg/cri/store/stats"
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"github.com/containerd/containerd/protobuf"
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"github.com/stretchr/testify/assert"
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runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
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)
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func TestGetUsageNanoCores(t *testing.T) {
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timestamp := time.Now()
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secondAfterTimeStamp := timestamp.Add(time.Second)
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ID := "ID"
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for _, test := range []struct {
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desc string
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firstCPUValue uint64
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secondCPUValue uint64
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expectedNanoCoreUsageFirst uint64
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expectedNanoCoreUsageSecond uint64
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}{
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{
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desc: "metrics",
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firstCPUValue: 50,
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secondCPUValue: 500,
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expectedNanoCoreUsageFirst: 0,
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expectedNanoCoreUsageSecond: 450,
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},
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} {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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container, err := containerstore.NewContainer(
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containerstore.Metadata{ID: ID},
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)
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assert.NoError(t, err)
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// calculate for first iteration
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// first run so container stats will be nil
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assert.Nil(t, container.Stats)
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cpuUsage := getUsageNanoCores(test.firstCPUValue, container.Stats, timestamp.UnixNano())
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assert.NoError(t, err)
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assert.Equal(t, test.expectedNanoCoreUsageFirst, cpuUsage)
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// fill in the stats as if they now exist
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container.Stats = &stats.ContainerStats{}
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container.Stats.UsageCoreNanoSeconds = test.firstCPUValue
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container.Stats.Timestamp = timestamp
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assert.NotNil(t, container.Stats)
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// calculate for second iteration
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cpuUsage = getUsageNanoCores(test.secondCPUValue, container.Stats, secondAfterTimeStamp.UnixNano())
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assert.NoError(t, err)
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assert.Equal(t, test.expectedNanoCoreUsageSecond, cpuUsage)
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})
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}
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}
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func Test_criService_podSandboxStats(t *testing.T) {
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initialStatsTimestamp := time.Now()
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currentStatsTimestamp := initialStatsTimestamp.Add(time.Second)
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c := newTestCRIService()
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type expectedStats struct {
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UsageCoreNanoSeconds uint64
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UsageNanoCores uint64
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WorkingSetBytes uint64
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CommitMemoryBytes uint64
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}
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for _, test := range []struct {
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desc string
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metrics map[string]*wstats.Statistics
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sandbox sandboxstore.Sandbox
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containers []containerstore.Container
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expectedPodStats *expectedStats
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expectedContainerStats []expectedStats
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expectError bool
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}{
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{
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desc: "no metrics found should return error",
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metrics: map[string]*wstats.Statistics{},
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sandbox: sandboxstore.Sandbox{},
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containers: []containerstore.Container{},
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expectedPodStats: &expectedStats{},
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expectedContainerStats: []expectedStats{},
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expectError: true,
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},
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{
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desc: "pod stats will include the container stats",
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metrics: map[string]*wstats.Statistics{
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"c1": {
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Container: windowsStat(currentStatsTimestamp, 200, 20, 20),
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},
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"s1": {
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Container: windowsStat(currentStatsTimestamp, 200, 20, 20),
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},
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},
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sandbox: sandboxstore.Sandbox{Metadata: sandboxstore.Metadata{ID: "s1"}},
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containers: []containerstore.Container{
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newContainer("c1", running, nil),
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},
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expectedPodStats: &expectedStats{
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UsageCoreNanoSeconds: 400,
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UsageNanoCores: 0,
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WorkingSetBytes: 40,
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CommitMemoryBytes: 40,
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},
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expectedContainerStats: []expectedStats{
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{
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UsageCoreNanoSeconds: 200,
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UsageNanoCores: 0,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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},
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expectError: false,
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},
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{
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desc: "pod stats will include the init container stats",
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metrics: map[string]*wstats.Statistics{
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"c1": {
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Container: windowsStat(currentStatsTimestamp, 200, 20, 20),
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},
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"s1": {
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Container: windowsStat(currentStatsTimestamp, 200, 20, 20),
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},
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"i1": {
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Container: windowsStat(currentStatsTimestamp, 200, 20, 20),
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},
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},
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sandbox: sandboxstore.Sandbox{Metadata: sandboxstore.Metadata{ID: "s1"}},
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containers: []containerstore.Container{
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newContainer("c1", running, nil),
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newContainer("i1", running, nil),
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},
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expectedPodStats: &expectedStats{
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UsageCoreNanoSeconds: 600,
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UsageNanoCores: 0,
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WorkingSetBytes: 60,
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CommitMemoryBytes: 60,
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},
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expectedContainerStats: []expectedStats{
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{
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UsageCoreNanoSeconds: 200,
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UsageNanoCores: 0,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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{
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UsageCoreNanoSeconds: 200,
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UsageNanoCores: 0,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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},
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expectError: false,
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},
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{
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desc: "pod stats will not include the init container stats if it is stopped",
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metrics: map[string]*wstats.Statistics{
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"c1": {
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Container: windowsStat(currentStatsTimestamp, 200, 20, 20),
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},
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"s1": {
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Container: windowsStat(currentStatsTimestamp, 200, 20, 20),
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},
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},
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sandbox: sandboxstore.Sandbox{Metadata: sandboxstore.Metadata{ID: "s1"}},
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containers: []containerstore.Container{
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newContainer("c1", running, nil),
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newContainer("i1", exitedValid, nil),
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},
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expectedPodStats: &expectedStats{
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UsageCoreNanoSeconds: 400,
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UsageNanoCores: 0,
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WorkingSetBytes: 40,
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CommitMemoryBytes: 40,
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},
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expectedContainerStats: []expectedStats{
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{
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UsageCoreNanoSeconds: 200,
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UsageNanoCores: 0,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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},
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expectError: false,
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},
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{
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desc: "pod stats will not include the init container stats if it is stopped in failed state",
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metrics: map[string]*wstats.Statistics{
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"c1": {
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Container: windowsStat(currentStatsTimestamp, 200, 20, 20),
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},
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"s1": {
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Container: windowsStat(currentStatsTimestamp, 200, 20, 20),
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},
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},
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sandbox: sandboxstore.Sandbox{Metadata: sandboxstore.Metadata{ID: "s1"}},
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containers: []containerstore.Container{
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newContainer("c1", running, nil),
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newContainer("i1", exitedInvalid, nil),
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},
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expectedPodStats: &expectedStats{
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UsageCoreNanoSeconds: 400,
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UsageNanoCores: 0,
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WorkingSetBytes: 40,
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CommitMemoryBytes: 40,
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},
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expectedContainerStats: []expectedStats{
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{
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UsageCoreNanoSeconds: 200,
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UsageNanoCores: 0,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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},
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expectError: false,
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},
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{
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desc: "pod with existing stats will have usagenanocores totalled across pods and containers",
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metrics: map[string]*wstats.Statistics{
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"c1": {
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Container: windowsStat(currentStatsTimestamp, 400, 20, 20),
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},
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"s1": {
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Container: windowsStat(currentStatsTimestamp, 400, 20, 20),
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},
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},
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sandbox: sandboxPod("s1", initialStatsTimestamp, 400),
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containers: []containerstore.Container{
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newContainer("c1", running, &stats.ContainerStats{
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Timestamp: initialStatsTimestamp,
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UsageCoreNanoSeconds: 200,
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}),
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},
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expectedPodStats: &expectedStats{
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UsageCoreNanoSeconds: 800,
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UsageNanoCores: 400,
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WorkingSetBytes: 40,
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CommitMemoryBytes: 40,
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},
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expectedContainerStats: []expectedStats{
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{
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UsageCoreNanoSeconds: 400,
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UsageNanoCores: 200,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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},
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expectError: false,
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},
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{
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desc: "pod sandbox with nil stats still works (hostprocess container scenario)",
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metrics: map[string]*wstats.Statistics{
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"c1": {
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Container: windowsStat(currentStatsTimestamp, 400, 20, 20),
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},
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"s1": nil,
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},
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sandbox: sandboxPod("s1", initialStatsTimestamp, 200),
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containers: []containerstore.Container{
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newContainer("c1", running, &stats.ContainerStats{
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Timestamp: initialStatsTimestamp,
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UsageCoreNanoSeconds: 200,
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}),
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},
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expectedPodStats: &expectedStats{
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UsageCoreNanoSeconds: 400,
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UsageNanoCores: 200,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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expectedContainerStats: []expectedStats{
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{
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UsageCoreNanoSeconds: 400,
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UsageNanoCores: 200,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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},
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expectError: false,
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},
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{
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desc: "pod sandbox with empty stats still works (hostprocess container scenario)",
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metrics: map[string]*wstats.Statistics{
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"c1": {
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Container: windowsStat(currentStatsTimestamp, 400, 20, 20),
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},
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"s1": {},
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},
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sandbox: sandboxPod("s1", initialStatsTimestamp, 200),
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containers: []containerstore.Container{
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newContainer("c1", running, &stats.ContainerStats{
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Timestamp: initialStatsTimestamp,
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UsageCoreNanoSeconds: 200,
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}),
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},
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expectedPodStats: &expectedStats{
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UsageCoreNanoSeconds: 400,
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UsageNanoCores: 200,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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expectedContainerStats: []expectedStats{
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{
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UsageCoreNanoSeconds: 400,
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UsageNanoCores: 200,
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WorkingSetBytes: 20,
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CommitMemoryBytes: 20,
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},
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},
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expectError: false,
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},
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{
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desc: "pod sandbox with a container that has no cpu shouldn't error",
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metrics: map[string]*wstats.Statistics{
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"c1": {},
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"s1": {},
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},
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sandbox: sandboxPod("s1", initialStatsTimestamp, 200),
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containers: []containerstore.Container{
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newContainer("c1", running, &stats.ContainerStats{
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Timestamp: initialStatsTimestamp,
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UsageCoreNanoSeconds: 200,
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}),
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},
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expectedPodStats: nil,
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expectedContainerStats: []expectedStats{},
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expectError: false,
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},
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{
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desc: "pod sandbox with no stats in metric mapp will fail",
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metrics: map[string]*wstats.Statistics{},
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sandbox: sandboxPod("s1", initialStatsTimestamp, 200),
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containers: []containerstore.Container{},
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expectedPodStats: nil,
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expectedContainerStats: []expectedStats{},
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expectError: true,
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},
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} {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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actualPodStats, actualContainerStats, err := c.toPodSandboxStats(test.sandbox, test.metrics, test.containers, currentStatsTimestamp)
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if test.expectError {
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assert.NotNil(t, err)
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return
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}
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assert.Nil(t, err)
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if test.expectedPodStats == nil {
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assert.Nil(t, actualPodStats.Cpu)
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assert.Nil(t, actualPodStats.Memory)
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return
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}
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assert.Equal(t, test.expectedPodStats.UsageCoreNanoSeconds, actualPodStats.Cpu.UsageCoreNanoSeconds.Value)
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assert.Equal(t, test.expectedPodStats.UsageNanoCores, actualPodStats.Cpu.UsageNanoCores.Value)
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for i, expectedStat := range test.expectedContainerStats {
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actutalStat := actualContainerStats[i]
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assert.Equal(t, expectedStat.UsageCoreNanoSeconds, actutalStat.Cpu.UsageCoreNanoSeconds.Value)
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assert.Equal(t, expectedStat.UsageNanoCores, actutalStat.Cpu.UsageNanoCores.Value)
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}
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})
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}
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}
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func sandboxPod(id string, timestamp time.Time, cachedCPU uint64) sandboxstore.Sandbox {
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return sandboxstore.Sandbox{
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Metadata: sandboxstore.Metadata{ID: id, RuntimeHandler: "runc"},
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Stats: &stats.ContainerStats{
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Timestamp: timestamp,
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UsageCoreNanoSeconds: cachedCPU,
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}}
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}
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func windowsStat(timestamp time.Time, cpu uint64, memory uint64, commitMemory uint64) *wstats.Statistics_Windows {
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return &wstats.Statistics_Windows{
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Windows: &wstats.WindowsContainerStatistics{
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Timestamp: protobuf.ToTimestamp(timestamp),
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Processor: &wstats.WindowsContainerProcessorStatistics{
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TotalRuntimeNS: cpu,
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},
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Memory: &wstats.WindowsContainerMemoryStatistics{
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MemoryUsagePrivateWorkingSetBytes: memory,
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MemoryUsageCommitBytes: commitMemory,
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},
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},
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}
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}
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func newContainer(id string, status containerstore.Status, stats *stats.ContainerStats) containerstore.Container {
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cntr, err := containerstore.NewContainer(containerstore.Metadata{ID: id}, containerstore.WithFakeStatus(status))
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if err != nil {
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panic(err)
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}
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if stats != nil {
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cntr.Stats = stats
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}
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return cntr
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}
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var exitedValid = containerstore.Status{
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StartedAt: time.Now().UnixNano(),
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FinishedAt: time.Now().UnixNano(),
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ExitCode: 0,
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}
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var exitedInvalid = containerstore.Status{
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StartedAt: time.Now().UnixNano(),
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FinishedAt: time.Now().UnixNano(),
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ExitCode: 1,
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}
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var running = containerstore.Status{
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StartedAt: time.Now().UnixNano(),
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}
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func Test_criService_saveSandBoxMetrics(t *testing.T) {
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timestamp := time.Now()
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containerID := "c1"
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sandboxID := "s1"
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for _, test := range []struct {
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desc string
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sandboxStats *runtime.PodSandboxStats
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expectError bool
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expectedSandboxvalue *stats.ContainerStats
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expectedContainervalue *stats.ContainerStats
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}{
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{
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desc: "if sandboxstats is nil then skip ",
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sandboxStats: nil,
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expectError: false,
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expectedSandboxvalue: nil,
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},
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{
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desc: "if sandboxstats.windows is nil then skip",
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sandboxStats: &runtime.PodSandboxStats{
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Windows: nil,
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},
|
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expectError: false,
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expectedSandboxvalue: nil,
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},
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{
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desc: "if sandboxstats.windows.cpu is nil then skip",
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sandboxStats: &runtime.PodSandboxStats{
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Windows: &runtime.WindowsPodSandboxStats{
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Cpu: nil,
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},
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},
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expectError: false,
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expectedSandboxvalue: nil,
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},
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{
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desc: "if sandboxstats.windows.cpu.UsageCoreNanoSeconds is nil then skip",
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sandboxStats: &runtime.PodSandboxStats{
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Windows: &runtime.WindowsPodSandboxStats{
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|
Cpu: &runtime.WindowsCpuUsage{
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UsageCoreNanoSeconds: nil,
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},
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},
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},
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expectError: false,
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expectedSandboxvalue: nil,
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},
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{
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desc: "Stats for containers that have cpu nil are skipped",
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sandboxStats: &runtime.PodSandboxStats{
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Windows: &runtime.WindowsPodSandboxStats{
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Cpu: &runtime.WindowsCpuUsage{
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Timestamp: timestamp.UnixNano(),
|
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UsageCoreNanoSeconds: &runtime.UInt64Value{Value: 100},
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},
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Containers: []*runtime.WindowsContainerStats{
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{
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Attributes: &runtime.ContainerAttributes{Id: containerID},
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Cpu: nil,
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},
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},
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},
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},
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expectError: false,
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expectedSandboxvalue: &stats.ContainerStats{
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Timestamp: timestamp,
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UsageCoreNanoSeconds: 100,
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},
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expectedContainervalue: nil,
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},
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{
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desc: "Stats for containers that have UsageCoreNanoSeconds nil are skipped",
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sandboxStats: &runtime.PodSandboxStats{
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Windows: &runtime.WindowsPodSandboxStats{
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Cpu: &runtime.WindowsCpuUsage{
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Timestamp: timestamp.UnixNano(),
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UsageCoreNanoSeconds: &runtime.UInt64Value{Value: 100},
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},
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Containers: []*runtime.WindowsContainerStats{
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{
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Attributes: &runtime.ContainerAttributes{Id: containerID},
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Cpu: &runtime.WindowsCpuUsage{
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Timestamp: timestamp.UnixNano(),
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UsageCoreNanoSeconds: nil},
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},
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},
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},
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},
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expectError: false,
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expectedSandboxvalue: &stats.ContainerStats{
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Timestamp: timestamp,
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UsageCoreNanoSeconds: 100,
|
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},
|
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expectedContainervalue: nil,
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},
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{
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|
desc: "Stats are updated for sandbox and containers",
|
|
sandboxStats: &runtime.PodSandboxStats{
|
|
Windows: &runtime.WindowsPodSandboxStats{
|
|
Cpu: &runtime.WindowsCpuUsage{
|
|
Timestamp: timestamp.UnixNano(),
|
|
UsageCoreNanoSeconds: &runtime.UInt64Value{Value: 100},
|
|
},
|
|
Containers: []*runtime.WindowsContainerStats{
|
|
{
|
|
Attributes: &runtime.ContainerAttributes{Id: containerID},
|
|
Cpu: &runtime.WindowsCpuUsage{
|
|
Timestamp: timestamp.UnixNano(),
|
|
UsageCoreNanoSeconds: &runtime.UInt64Value{Value: 50},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
expectError: false,
|
|
expectedSandboxvalue: &stats.ContainerStats{
|
|
Timestamp: timestamp,
|
|
UsageCoreNanoSeconds: 100,
|
|
},
|
|
expectedContainervalue: &stats.ContainerStats{
|
|
Timestamp: timestamp,
|
|
UsageCoreNanoSeconds: 50,
|
|
},
|
|
},
|
|
} {
|
|
test := test
|
|
t.Run(test.desc, func(t *testing.T) {
|
|
c := newTestCRIService()
|
|
c.sandboxStore.Add(sandboxstore.Sandbox{
|
|
Metadata: sandboxstore.Metadata{ID: sandboxID},
|
|
})
|
|
|
|
c.containerStore.Add(containerstore.Container{
|
|
Metadata: containerstore.Metadata{ID: containerID},
|
|
})
|
|
|
|
err := c.saveSandBoxMetrics(sandboxID, test.sandboxStats)
|
|
|
|
if test.expectError {
|
|
assert.NotNil(t, err)
|
|
} else {
|
|
assert.Nil(t, err)
|
|
}
|
|
|
|
sandbox, err := c.sandboxStore.Get(sandboxID)
|
|
assert.Nil(t, err)
|
|
|
|
if test.expectedSandboxvalue != nil {
|
|
assert.Equal(t, test.expectedSandboxvalue.Timestamp.UnixNano(), sandbox.Stats.Timestamp.UnixNano())
|
|
assert.Equal(t, test.expectedSandboxvalue.UsageCoreNanoSeconds, sandbox.Stats.UsageCoreNanoSeconds)
|
|
} else {
|
|
assert.Nil(t, sandbox.Stats)
|
|
}
|
|
|
|
container, err := c.containerStore.Get(containerID)
|
|
assert.Nil(t, err)
|
|
if test.expectedContainervalue != nil {
|
|
assert.Equal(t, test.expectedContainervalue.Timestamp.UnixNano(), container.Stats.Timestamp.UnixNano())
|
|
assert.Equal(t, test.expectedContainervalue.UsageCoreNanoSeconds, container.Stats.UsageCoreNanoSeconds)
|
|
} else {
|
|
assert.Nil(t, container.Stats)
|
|
}
|
|
})
|
|
}
|
|
}
|