mirror of
https://github.com/kata-containers/kata-containers.git
synced 2025-10-21 11:58:41 +00:00
e6f066b828
This commit will allow for better performance regarding the time spent to retrieve the sandbox ID related to a container ID. The way it works is by relying on a specific mapping between container IDs and sanbox IDs, meaning it allows to retrieve directly the sandbox ID related to a container ID from the CLI. This lowers complexity from O(n²) to O(1), because we don't need to call into ListPod() which was parsing all the pods and all the containers on the system everytime the CLI need to retrieve this mapping. This commit also updates the whole unit tests as a consequence. This is involving most of them since they were all relying on ListPod() before. Fixes #212 Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
618 lines
15 KiB
Go
618 lines
15 KiB
Go
// Copyright (c) 2017 Intel Corporation
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package main
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import (
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"fmt"
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"io/ioutil"
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"math/rand"
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"net"
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"os"
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"path/filepath"
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"reflect"
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"syscall"
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"testing"
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"time"
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vc "github.com/kata-containers/runtime/virtcontainers"
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vcAnnotations "github.com/kata-containers/runtime/virtcontainers/pkg/annotations"
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"github.com/kata-containers/runtime/virtcontainers/pkg/oci"
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"github.com/kata-containers/runtime/virtcontainers/pkg/vcmock"
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"github.com/opencontainers/runc/libcontainer/utils"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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"github.com/stretchr/testify/assert"
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)
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var (
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consolePathTest = "console-test"
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consoleSocketPathTest = "console-socket-test"
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)
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type cgroupTestDataType struct {
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resource string
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linuxSpec *specs.LinuxResources
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}
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var cgroupTestData = []cgroupTestDataType{
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{
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"memory",
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&specs.LinuxResources{
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Memory: &specs.LinuxMemory{},
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},
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},
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{
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"cpu",
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&specs.LinuxResources{
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CPU: &specs.LinuxCPU{},
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},
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},
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{
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"pids",
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&specs.LinuxResources{
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Pids: &specs.LinuxPids{},
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},
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},
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{
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"blkio",
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&specs.LinuxResources{
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BlockIO: &specs.LinuxBlockIO{},
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},
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},
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}
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func TestGetContainerInfoContainerIDEmptyFailure(t *testing.T) {
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assert := assert.New(t)
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status, _, err := getContainerInfo("")
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assert.Error(err, "This test should fail because containerID is empty")
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assert.Empty(status.ID, "Expected blank fullID, but got %v", status.ID)
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}
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func TestGetContainerInfo(t *testing.T) {
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assert := assert.New(t)
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sandbox := &vcmock.Sandbox{
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MockID: testSandboxID,
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}
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containerID := testContainerID
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containerStatus := vc.ContainerStatus{
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ID: containerID,
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Annotations: map[string]string{
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vcAnnotations.ContainerTypeKey: string(vc.PodSandbox),
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},
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}
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path, err := createTempContainerIDMapping(containerID, testSandboxID)
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assert.NoError(err)
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defer os.RemoveAll(path)
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testingImpl.StatusContainerFunc = func(sandboxID, containerID string) (vc.ContainerStatus, error) {
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return containerStatus, nil
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}
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defer func() {
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testingImpl.StatusContainerFunc = nil
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}()
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status, sandboxID, err := getContainerInfo(testContainerID)
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assert.NoError(err)
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assert.Equal(sandboxID, sandbox.ID())
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assert.Equal(status, containerStatus)
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}
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func TestValidCreateParamsContainerIDEmptyFailure(t *testing.T) {
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assert := assert.New(t)
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_, err := validCreateParams("", "")
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assert.Error(err, "This test should fail because containerID is empty")
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assert.False(vcmock.IsMockError(err))
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}
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func TestGetExistingContainerInfoContainerIDEmptyFailure(t *testing.T) {
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assert := assert.New(t)
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status, _, err := getExistingContainerInfo("")
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assert.Error(err, "This test should fail because containerID is empty")
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assert.Empty(status.ID, "Expected blank fullID, but got %v", status.ID)
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}
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func TestValidCreateParamsContainerIDNotUnique(t *testing.T) {
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assert := assert.New(t)
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testSandboxID2 := testSandboxID + "2"
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path, err := createTempContainerIDMapping(testContainerID, testSandboxID)
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assert.NoError(err)
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defer os.RemoveAll(path)
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err = os.MkdirAll(filepath.Join(ctrsMapTreePath, testContainerID, testSandboxID2), 0750)
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assert.NoError(err)
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_, err = validCreateParams(testContainerID, "")
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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}
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func TestValidCreateParamsInvalidBundle(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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bundlePath := filepath.Join(tmpdir, "bundle")
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path, err := ioutil.TempDir("", "containers-mapping")
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assert.NoError(err)
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defer os.RemoveAll(path)
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ctrsMapTreePath = path
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_, err = validCreateParams(testContainerID, bundlePath)
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// bundle is ENOENT
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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}
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func TestValidCreateParamsBundleIsAFile(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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bundlePath := filepath.Join(tmpdir, "bundle")
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err = createEmptyFile(bundlePath)
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assert.NoError(err)
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path, err := ioutil.TempDir("", "containers-mapping")
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assert.NoError(err)
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defer os.RemoveAll(path)
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ctrsMapTreePath = path
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_, err = validCreateParams(testContainerID, bundlePath)
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// bundle exists as a file, not a directory
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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}
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func testProcessCgroupsPath(t *testing.T, ociSpec oci.CompatOCISpec, expected []string) {
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assert := assert.New(t)
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result, err := processCgroupsPath(ociSpec, true)
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assert.NoError(err)
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if reflect.DeepEqual(result, expected) == false {
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assert.FailNow("DeepEqual failed", "Result path %q should match the expected one %q", result, expected)
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}
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}
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func TestProcessCgroupsPathEmptyPathSuccessful(t *testing.T) {
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ociSpec := oci.CompatOCISpec{}
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ociSpec.Linux = &specs.Linux{
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CgroupsPath: "",
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}
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testProcessCgroupsPath(t, ociSpec, []string{})
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}
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func TestProcessCgroupsPathEmptyResources(t *testing.T) {
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ociSpec := oci.CompatOCISpec{}
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ociSpec.Linux = &specs.Linux{
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CgroupsPath: "foo",
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}
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testProcessCgroupsPath(t, ociSpec, []string{})
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}
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func TestProcessCgroupsPathRelativePathSuccessful(t *testing.T) {
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relativeCgroupsPath := "relative/cgroups/path"
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cgroupsDirPath = "/foo/runtime/base"
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ociSpec := oci.CompatOCISpec{}
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ociSpec.Linux = &specs.Linux{
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CgroupsPath: relativeCgroupsPath,
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}
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for _, d := range cgroupTestData {
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ociSpec.Linux.Resources = d.linuxSpec
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p := filepath.Join(cgroupsDirPath, d.resource, relativeCgroupsPath)
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testProcessCgroupsPath(t, ociSpec, []string{p})
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}
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}
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func TestProcessCgroupsPathAbsoluteNoCgroupMountSuccessful(t *testing.T) {
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absoluteCgroupsPath := "/absolute/cgroups/path"
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cgroupsDirPath = "/foo/runtime/base"
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ociSpec := oci.CompatOCISpec{}
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ociSpec.Linux = &specs.Linux{
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CgroupsPath: absoluteCgroupsPath,
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}
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for _, d := range cgroupTestData {
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ociSpec.Linux.Resources = d.linuxSpec
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p := filepath.Join(cgroupsDirPath, d.resource, absoluteCgroupsPath)
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testProcessCgroupsPath(t, ociSpec, []string{p})
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}
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}
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func TestProcessCgroupsPathAbsoluteNoCgroupMountDestinationFailure(t *testing.T) {
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assert := assert.New(t)
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absoluteCgroupsPath := "/absolute/cgroups/path"
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ociSpec := oci.CompatOCISpec{}
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ociSpec.Mounts = []specs.Mount{
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{
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Type: "cgroup",
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},
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}
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ociSpec.Linux = &specs.Linux{
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CgroupsPath: absoluteCgroupsPath,
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}
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for _, d := range cgroupTestData {
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ociSpec.Linux.Resources = d.linuxSpec
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for _, isSandbox := range []bool{true, false} {
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_, err := processCgroupsPath(ociSpec, isSandbox)
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assert.Error(err, "This test should fail because no cgroup mount destination provided")
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}
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}
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}
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func TestProcessCgroupsPathAbsoluteSuccessful(t *testing.T) {
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assert := assert.New(t)
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if os.Geteuid() != 0 {
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t.Skip(testDisabledNeedRoot)
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}
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memoryResource := "memory"
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absoluteCgroupsPath := "/cgroup/mount/destination"
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cgroupMountDest, err := ioutil.TempDir("", "cgroup-memory-")
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assert.NoError(err)
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defer os.RemoveAll(cgroupMountDest)
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resourceMountPath := filepath.Join(cgroupMountDest, memoryResource)
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err = os.MkdirAll(resourceMountPath, cgroupsDirMode)
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assert.NoError(err)
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err = syscall.Mount("go-test", resourceMountPath, "cgroup", 0, memoryResource)
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assert.NoError(err)
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defer syscall.Unmount(resourceMountPath, 0)
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ociSpec := oci.CompatOCISpec{}
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ociSpec.Linux = &specs.Linux{
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Resources: &specs.LinuxResources{
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Memory: &specs.LinuxMemory{},
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},
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CgroupsPath: absoluteCgroupsPath,
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}
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ociSpec.Mounts = []specs.Mount{
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{
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Type: "cgroup",
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Destination: cgroupMountDest,
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},
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}
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testProcessCgroupsPath(t, ociSpec, []string{filepath.Join(resourceMountPath, absoluteCgroupsPath)})
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}
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func TestSetupConsoleExistingConsolePathSuccessful(t *testing.T) {
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assert := assert.New(t)
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console, err := setupConsole(consolePathTest, "")
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assert.NoError(err)
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assert.Equal(console, consolePathTest, "Got %q, Expecting %q", console, consolePathTest)
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}
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func TestSetupConsoleExistingConsolePathAndConsoleSocketPathSuccessful(t *testing.T) {
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assert := assert.New(t)
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console, err := setupConsole(consolePathTest, consoleSocketPathTest)
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assert.NoError(err)
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assert.Equal(console, consolePathTest, "Got %q, Expecting %q", console, consolePathTest)
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}
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func TestSetupConsoleEmptyPathsSuccessful(t *testing.T) {
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assert := assert.New(t)
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console, err := setupConsole("", "")
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assert.NoError(err)
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assert.Empty(console, "Console path should be empty, got %q instead", console)
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}
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func TestSetupConsoleExistingConsoleSocketPath(t *testing.T) {
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assert := assert.New(t)
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dir, err := ioutil.TempDir("", "test-socket")
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assert.NoError(err)
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defer os.RemoveAll(dir)
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sockName := filepath.Join(dir, "console.sock")
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l, err := net.Listen("unix", sockName)
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assert.NoError(err)
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console, err := setupConsole("", sockName)
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assert.NoError(err)
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waitCh := make(chan error)
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go func() {
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conn, err1 := l.Accept()
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if err != nil {
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waitCh <- err1
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}
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uConn, ok := conn.(*net.UnixConn)
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if !ok {
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waitCh <- fmt.Errorf("casting to *net.UnixConn failed")
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}
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f, err1 := uConn.File()
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if err != nil {
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waitCh <- err1
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}
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_, err1 = utils.RecvFd(f)
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waitCh <- err1
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}()
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assert.NotEmpty(console, "Console socket path should not be empty")
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err = <-waitCh
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assert.NoError(err)
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}
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func TestSetupConsoleNotExistingSocketPathFailure(t *testing.T) {
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assert := assert.New(t)
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console, err := setupConsole("", "unknown-sock-path")
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assert.Error(err, "This test should fail because the console socket path does not exist")
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assert.Empty(console, "This test should fail because the console socket path does not exist")
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}
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func testNoNeedForOutput(t *testing.T, detach bool, tty bool, expected bool) {
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assert := assert.New(t)
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result := noNeedForOutput(detach, tty)
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assert.Equal(result, expected)
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}
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func TestNoNeedForOutputDetachTrueTtyTrue(t *testing.T) {
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testNoNeedForOutput(t, true, true, true)
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}
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func TestNoNeedForOutputDetachFalseTtyTrue(t *testing.T) {
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testNoNeedForOutput(t, false, true, false)
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}
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func TestNoNeedForOutputDetachFalseTtyFalse(t *testing.T) {
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testNoNeedForOutput(t, false, false, false)
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}
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func TestNoNeedForOutputDetachTrueTtyFalse(t *testing.T) {
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testNoNeedForOutput(t, true, false, false)
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}
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func TestIsCgroupMounted(t *testing.T) {
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assert := assert.New(t)
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r := rand.New(rand.NewSource(time.Now().Unix()))
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randPath := fmt.Sprintf("/path/to/random/%d", r.Int63())
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assert.False(isCgroupMounted(randPath), "%s does not exist", randPath)
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assert.False(isCgroupMounted(os.TempDir()), "%s is not a cgroup", os.TempDir())
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cgroupsDirPath = ""
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cgroupRootPath, err := getCgroupsDirPath(procMountInfo)
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if err != nil {
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assert.NoError(err)
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}
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memoryCgroupPath := filepath.Join(cgroupRootPath, "memory")
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if _, err := os.Stat(memoryCgroupPath); os.IsNotExist(err) {
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t.Skipf("memory cgroup does not exist: %s", memoryCgroupPath)
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}
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assert.True(isCgroupMounted(memoryCgroupPath), "%s is a cgroup", memoryCgroupPath)
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}
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func TestProcessCgroupsPathForResource(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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bundlePath := filepath.Join(tmpdir, "bundle")
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err = makeOCIBundle(bundlePath)
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assert.NoError(err)
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ociConfigFile := filepath.Join(bundlePath, specConfig)
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assert.True(fileExists(ociConfigFile))
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spec, err := readOCIConfigFile(ociConfigFile)
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assert.NoError(err)
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for _, isSandbox := range []bool{true, false} {
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_, err := processCgroupsPathForResource(spec, "", isSandbox)
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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}
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}
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func TestGetCgroupsDirPath(t *testing.T) {
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assert := assert.New(t)
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type testData struct {
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contents string
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expectedResult string
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expectError bool
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}
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dir, err := ioutil.TempDir("", "")
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if err != nil {
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assert.NoError(err)
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}
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defer os.RemoveAll(dir)
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// make sure tested cgroupsDirPath is existed
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testedCgroupDir := filepath.Join(dir, "weirdCgroup")
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err = os.Mkdir(testedCgroupDir, testDirMode)
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assert.NoError(err)
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weirdCgroupPath := filepath.Join(testedCgroupDir, "memory")
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data := []testData{
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{fmt.Sprintf("num1 num2 num3 / %s num6 num7 - cgroup cgroup rw,memory", weirdCgroupPath), testedCgroupDir, false},
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// cgroup mount is not properly formated, if fields post - less than 3
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{fmt.Sprintf("num1 num2 num3 / %s num6 num7 - cgroup cgroup ", weirdCgroupPath), "", true},
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{"a a a a a a a - b c d", "", true},
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{"a \na b \na b c\na b c d", "", true},
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{"", "", true},
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}
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file := filepath.Join(dir, "mountinfo")
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//file does not exist, should error here
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_, err = getCgroupsDirPath(file)
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assert.Error(err)
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for _, d := range data {
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err := ioutil.WriteFile(file, []byte(d.contents), testFileMode)
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assert.NoError(err)
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cgroupsDirPath = ""
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path, err := getCgroupsDirPath(file)
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if d.expectError {
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assert.Error(err, fmt.Sprintf("got %q, test data: %+v", path, d))
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} else {
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assert.NoError(err, fmt.Sprintf("got %q, test data: %+v", path, d))
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}
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assert.Equal(d.expectedResult, path)
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}
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}
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func TestFetchContainerIDMappingContainerIDEmptyFailure(t *testing.T) {
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assert := assert.New(t)
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sandboxID, err := fetchContainerIDMapping("")
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assert.Error(err)
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assert.Empty(sandboxID)
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}
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func TestFetchContainerIDMappingEmptyMappingSuccess(t *testing.T) {
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assert := assert.New(t)
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path, err := ioutil.TempDir("", "containers-mapping")
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assert.NoError(err)
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defer os.RemoveAll(path)
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ctrsMapTreePath = path
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sandboxID, err := fetchContainerIDMapping(testContainerID)
|
|
assert.NoError(err)
|
|
assert.Empty(sandboxID)
|
|
}
|
|
|
|
func TestFetchContainerIDMappingTooManyFilesFailure(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
path, err := createTempContainerIDMapping(testContainerID, testSandboxID)
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(path)
|
|
err = os.MkdirAll(filepath.Join(ctrsMapTreePath, testContainerID, testSandboxID+"2"), ctrsMappingDirMode)
|
|
assert.NoError(err)
|
|
|
|
sandboxID, err := fetchContainerIDMapping(testContainerID)
|
|
assert.Error(err)
|
|
assert.Empty(sandboxID)
|
|
}
|
|
|
|
func TestFetchContainerIDMappingSuccess(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
path, err := createTempContainerIDMapping(testContainerID, testSandboxID)
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(path)
|
|
|
|
sandboxID, err := fetchContainerIDMapping(testContainerID)
|
|
assert.NoError(err)
|
|
assert.Equal(sandboxID, testSandboxID)
|
|
}
|
|
|
|
func TestAddContainerIDMappingContainerIDEmptyFailure(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
err := addContainerIDMapping("", testSandboxID)
|
|
assert.Error(err)
|
|
}
|
|
|
|
func TestAddContainerIDMappingSandboxIDEmptyFailure(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
err := addContainerIDMapping(testContainerID, "")
|
|
assert.Error(err)
|
|
}
|
|
|
|
func TestAddContainerIDMappingSuccess(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
path, err := ioutil.TempDir("", "containers-mapping")
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(path)
|
|
ctrsMapTreePath = path
|
|
|
|
_, err = os.Stat(filepath.Join(ctrsMapTreePath, testContainerID, testSandboxID))
|
|
assert.True(os.IsNotExist(err))
|
|
|
|
err = addContainerIDMapping(testContainerID, testSandboxID)
|
|
assert.NoError(err)
|
|
|
|
_, err = os.Stat(filepath.Join(ctrsMapTreePath, testContainerID, testSandboxID))
|
|
assert.NoError(err)
|
|
}
|
|
|
|
func TestDelContainerIDMappingContainerIDEmptyFailure(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
err := delContainerIDMapping("")
|
|
assert.Error(err)
|
|
}
|
|
|
|
func TestDelContainerIDMappingSuccess(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
path, err := createTempContainerIDMapping(testContainerID, testSandboxID)
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(path)
|
|
|
|
_, err = os.Stat(filepath.Join(ctrsMapTreePath, testContainerID, testSandboxID))
|
|
assert.NoError(err)
|
|
|
|
err = delContainerIDMapping(testContainerID)
|
|
assert.NoError(err)
|
|
|
|
_, err = os.Stat(filepath.Join(ctrsMapTreePath, testContainerID, testSandboxID))
|
|
assert.True(os.IsNotExist(err))
|
|
}
|