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9bb0b79709
When running with cgroupsv2 and the deeply nested nature of our CI, we need to take extra steps to make sure tests are working fine. Some tests were disabled under cgroupsv2 as I can't make them work. Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
298 lines
9.0 KiB
Go
298 lines
9.0 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package cri_test
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import (
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"context"
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"io/ioutil"
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"os"
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"path/filepath"
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"runtime/debug"
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"sync"
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"testing"
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"time"
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"github.com/containerd/cgroups"
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cgroupsv2 "github.com/containerd/cgroups/v2"
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"github.com/opencontainers/runtime-spec/specs-go"
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"github.com/stretchr/testify/suite"
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runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
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"github.com/talos-systems/talos/internal/app/machined/pkg/runtime/logging"
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"github.com/talos-systems/talos/internal/app/machined/pkg/system/events"
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"github.com/talos-systems/talos/internal/app/machined/pkg/system/runner"
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"github.com/talos-systems/talos/internal/app/machined/pkg/system/runner/process"
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ctrs "github.com/talos-systems/talos/internal/pkg/containers"
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"github.com/talos-systems/talos/internal/pkg/containers/cri"
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criclient "github.com/talos-systems/talos/internal/pkg/cri"
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"github.com/talos-systems/talos/pkg/machinery/constants"
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)
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const (
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busyboxImage = "docker.io/library/busybox:1.30.1"
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// busyboxImageDigest = "sha256:64f5d945efcc0f39ab11b3cd4ba403cc9fefe1fa3613123ca016cf3708e8cafb".
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// pauseImage = "k8s.gcr.io/pause:3.1".
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// pauseImageDigest = "sha256:da86e6ba6ca197bf6bc5e9d900febd906b133eaa4750e6bed647b0fbe50ed43e".
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)
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func MockEventSink(state events.ServiceState, message string, args ...interface{}) {
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}
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type CRISuite struct {
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suite.Suite
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tmpDir string
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containerdRunner runner.Runner
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containerdWg sync.WaitGroup
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containerdAddress string
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client *criclient.Client
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ctx context.Context
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ctxCancel context.CancelFunc
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inspector ctrs.Inspector
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pods []string
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}
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func (suite *CRISuite) SetupSuite() {
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if cgroups.Mode() == cgroups.Unified {
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suite.T().Skip("test doesn't pass under cgroupsv2")
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}
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var err error
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suite.tmpDir, err = ioutil.TempDir("", "talos")
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suite.Require().NoError(err)
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stateDir, rootDir := filepath.Join(suite.tmpDir, "state"), filepath.Join(suite.tmpDir, "root")
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suite.Require().NoError(os.Mkdir(stateDir, 0o777))
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suite.Require().NoError(os.Mkdir(rootDir, 0o777))
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suite.containerdAddress = filepath.Join(suite.tmpDir, "run.sock")
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if cgroups.Mode() == cgroups.Unified {
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var (
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groupPath string
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manager *cgroupsv2.Manager
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)
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groupPath, err = cgroupsv2.NestedGroupPath(suite.tmpDir)
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suite.Require().NoError(err)
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manager, err = cgroupsv2.NewManager(constants.CgroupMountPath, groupPath, &cgroupsv2.Resources{})
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suite.Require().NoError(err)
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defer manager.Delete() //nolint:errcheck
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} else {
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var manager cgroups.Cgroup
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manager, err = cgroups.New(cgroups.V1, cgroups.NestedPath(suite.tmpDir), &specs.LinuxResources{})
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suite.Require().NoError(err)
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defer manager.Delete() //nolint:errcheck
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}
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args := &runner.Args{
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ID: "containerd",
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ProcessArgs: []string{
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"/bin/containerd",
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"--address", suite.containerdAddress,
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"--state", stateDir,
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"--root", rootDir,
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"--config", constants.CRIContainerdConfig,
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},
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}
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suite.containerdRunner = process.NewRunner(
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false,
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args,
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runner.WithLoggingManager(logging.NewFileLoggingManager(suite.tmpDir)),
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runner.WithEnv([]string{"PATH=/bin:" + constants.PATH}),
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runner.WithCgroupPath(suite.tmpDir),
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)
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suite.Require().NoError(suite.containerdRunner.Open(context.Background()))
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suite.containerdWg.Add(1)
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go func() {
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defer suite.containerdWg.Done()
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defer suite.containerdRunner.Close() //nolint:errcheck
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suite.containerdRunner.Run(MockEventSink) //nolint:errcheck
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}()
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suite.client, err = criclient.NewClient("unix:"+suite.containerdAddress, 30*time.Second)
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suite.Require().NoError(err)
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suite.ctx, suite.ctxCancel = context.WithTimeout(context.Background(), 30*time.Second)
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suite.inspector, err = cri.NewInspector(suite.ctx, cri.WithCRIEndpoint("unix:"+suite.containerdAddress))
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suite.Require().NoError(err)
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}
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func (suite *CRISuite) TearDownSuite() {
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suite.ctxCancel()
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suite.Require().NoError(suite.inspector.Close())
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suite.Require().NoError(suite.client.Close())
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suite.Require().NoError(suite.containerdRunner.Stop())
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suite.containerdWg.Wait()
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suite.Require().NoError(os.RemoveAll(suite.tmpDir))
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}
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func (suite *CRISuite) SetupTest() {
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suite.ctx, suite.ctxCancel = context.WithTimeout(context.Background(), 30*time.Second)
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suite.pods = nil
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podSandboxConfig := &runtimeapi.PodSandboxConfig{
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Metadata: &runtimeapi.PodSandboxMetadata{
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Name: "etcd-master-1",
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Uid: "ed1a599a53090941c9b4025c7e3e883d",
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Namespace: "kube-system",
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Attempt: 0,
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},
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Labels: map[string]string{
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"io.kubernetes.pod.name": "etcd-master-1",
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"io.kubernetes.pod.namespace": "kube-system",
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},
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LogDirectory: suite.tmpDir,
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Linux: &runtimeapi.LinuxPodSandboxConfig{
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SecurityContext: &runtimeapi.LinuxSandboxSecurityContext{
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NamespaceOptions: &runtimeapi.NamespaceOption{
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Network: runtimeapi.NamespaceMode_NODE,
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},
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},
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},
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}
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podSandboxID, err := suite.client.RunPodSandbox(suite.ctx, podSandboxConfig, "")
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suite.Require().NoError(err)
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suite.pods = append(suite.pods, podSandboxID)
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suite.Require().Len(podSandboxID, 64)
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imageRef, err := suite.client.PullImage(suite.ctx, &runtimeapi.ImageSpec{
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Image: busyboxImage,
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}, podSandboxConfig)
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suite.Require().NoError(err)
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ctrID, err := suite.client.CreateContainer(suite.ctx, podSandboxID,
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&runtimeapi.ContainerConfig{
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Metadata: &runtimeapi.ContainerMetadata{
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Name: "etcd",
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},
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Labels: map[string]string{
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"io.kubernetes.container.name": "etcd",
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"io.kubernetes.pod.name": "etcd-master-1",
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"io.kubernetes.pod.namespace": "kube-system",
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},
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Annotations: map[string]string{
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"io.kubernetes.container.restartCount": "1",
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},
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Image: &runtimeapi.ImageSpec{
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Image: imageRef,
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},
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Command: []string{"/bin/sh", "-c", "sleep 3600"},
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}, podSandboxConfig)
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suite.Require().NoError(err)
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suite.Require().Len(ctrID, 64)
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err = suite.client.StartContainer(suite.ctx, ctrID)
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suite.Require().NoError(err)
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}
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func (suite *CRISuite) TearDownTest() {
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for _, pod := range suite.pods {
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suite.Require().NoError(suite.client.StopPodSandbox(suite.ctx, pod))
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suite.Require().NoError(suite.client.RemovePodSandbox(suite.ctx, pod))
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}
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suite.ctxCancel()
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}
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func (suite *CRISuite) TestPods() {
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pods, err := suite.inspector.Pods()
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suite.Require().NoError(err)
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suite.Require().Len(pods, 1)
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suite.Assert().Equal("kube-system/etcd-master-1", pods[0].Name)
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suite.Require().Len(pods[0].Containers, 2)
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suite.Assert().Equal(pods[0].Name, pods[0].Containers[0].Display)
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suite.Assert().Equal(pods[0].Name, pods[0].Containers[0].Name)
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suite.Assert().Equal("SANDBOX_READY", pods[0].Containers[0].Status)
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// suite.Assert().Equal(pauseImageDigest, pods[0].Containers[0].Digest)
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// suite.Assert().Equal(pauseImage, pods[0].Containers[0].Image)
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suite.Assert().True(pods[0].Containers[0].Pid > 0)
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suite.Assert().Equal("kube-system/etcd-master-1:etcd", pods[0].Containers[1].Display)
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suite.Assert().Equal("etcd", pods[0].Containers[1].Name)
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// suite.Assert().Equal(busyboxImage, pods[0].Containers[1].Image)
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// suite.Assert().Equal(busyboxImageDigest, pods[0].Containers[1].Digest)
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suite.Assert().Equal("CONTAINER_RUNNING", pods[0].Containers[1].Status)
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suite.Assert().Equal("1", pods[0].Containers[1].RestartCount)
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suite.Assert().True(pods[0].Containers[1].Pid > 0)
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}
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func (suite *CRISuite) TestContainer() {
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defer func() {
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r := recover()
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if r != nil {
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t := suite.T()
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t.Errorf("test panicked: %v %s", r, debug.Stack())
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t.FailNow()
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}
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}()
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container, err := suite.inspector.Container("kube-system/etcd-master-1")
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suite.Require().NoError(err)
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suite.Assert().Equal("kube-system/etcd-master-1", container.Display)
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suite.Assert().Equal(container.Display, container.Name)
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suite.Assert().Equal("SANDBOX_READY", container.Status)
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// suite.Assert().Equal(pauseImageDigest, container.Digest)
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suite.Assert().True(container.Pid > 0)
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container, err = suite.inspector.Container("kube-system/etcd-master-1:etcd")
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suite.Require().NoError(err)
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suite.Assert().Equal("kube-system/etcd-master-1:etcd", container.Display)
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suite.Assert().Equal("etcd", container.Name)
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suite.Assert().Equal("CONTAINER_RUNNING", container.Status)
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// suite.Assert().Equal(busyboxImageDigest, container.Image)
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// suite.Assert().Equal(busyboxImageDigest, container.Digest)
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suite.Assert().Equal("1", container.RestartCount)
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suite.Assert().True(container.Pid > 0)
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container, err = suite.inspector.Container("kube-system/etcd-master-1:etcd2")
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suite.Require().NoError(err)
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suite.Require().Nil(container)
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container, err = suite.inspector.Container("kube-system/etcd-master-2")
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suite.Require().NoError(err)
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suite.Require().Nil(container)
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container, err = suite.inspector.Container("talos")
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suite.Require().NoError(err)
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suite.Require().Nil(container)
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}
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func TestCRISuite(t *testing.T) {
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if os.Getuid() != 0 {
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t.Skip("can't run the test as non-root")
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}
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_, err := os.Stat("/bin/containerd")
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if err != nil {
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t.Skip("containerd binary is not available, skipping the test")
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}
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suite.Run(t, new(CRISuite))
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}
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