mirror of
https://github.com/kata-containers/kata-containers.git
synced 2025-09-28 20:15:51 +00:00
2ed94cbd9d
Fixes: #2023 We can get OCI spec config from bundle instead of annotations, so this field isn't necessary. Signed-off-by: Wei Zhang <weizhang555.zw@gmail.com>
725 lines
19 KiB
Go
725 lines
19 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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"context"
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"flag"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"regexp"
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"testing"
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ktu "github.com/kata-containers/runtime/pkg/katatestutils"
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"github.com/kata-containers/runtime/pkg/katautils"
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vc "github.com/kata-containers/runtime/virtcontainers"
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"github.com/kata-containers/runtime/virtcontainers/pkg/compatoci"
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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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specs "github.com/opencontainers/runtime-spec/specs-go"
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"github.com/stretchr/testify/assert"
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"github.com/urfave/cli"
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)
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const (
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testPID = 100
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testConsole = "/dev/pts/999"
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testContainerTypeAnnotation = "io.kubernetes.cri-o.ContainerType"
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testContainerTypeSandbox = "sandbox"
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testContainerTypeContainer = "container"
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)
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var (
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testStrPID = fmt.Sprintf("%d", testPID)
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ctrsMapTreePath = "/var/run/kata-containers/containers-mapping"
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)
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func TestCreatePIDFileSuccessful(t *testing.T) {
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pidDirPath, err := ioutil.TempDir(testDir, "pid-path-")
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if err != nil {
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t.Fatalf("Could not create temporary PID directory: %s", err)
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}
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pidFilePath := filepath.Join(pidDirPath, "pid-file-path")
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if err := createPIDFile(context.Background(), pidFilePath, testPID); err != nil {
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t.Fatal(err)
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}
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fileBytes, err := ioutil.ReadFile(pidFilePath)
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if err != nil {
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os.RemoveAll(pidFilePath)
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t.Fatalf("Could not read %q: %s", pidFilePath, err)
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}
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if string(fileBytes) != testStrPID {
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os.RemoveAll(pidFilePath)
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t.Fatalf("PID %s read from %q different from expected PID %s", string(fileBytes), pidFilePath, testStrPID)
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}
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os.RemoveAll(pidFilePath)
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}
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func TestCreatePIDFileEmptyPathSuccessful(t *testing.T) {
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file := ""
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if err := createPIDFile(context.Background(), file, testPID); err != nil {
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t.Fatalf("This test should not fail (pidFilePath %q, pid %d)", file, testPID)
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}
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}
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func TestCreatePIDFileUnableToRemove(t *testing.T) {
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if tc.NotValid(ktu.NeedNonRoot()) {
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// The os.FileMode(0000) trick doesn't work for root.
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t.Skip(ktu.TestDisabledNeedNonRoot)
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}
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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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subdir := filepath.Join(tmpdir, "dir")
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file := filepath.Join(subdir, "pidfile")
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// stop non-root user from removing the directory later
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err = os.MkdirAll(subdir, os.FileMode(0000))
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assert.NoError(err)
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err = createPIDFile(context.Background(), file, testPID)
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assert.Error(err)
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// let it be deleted
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os.Chmod(subdir, testDirMode)
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}
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func TestCreatePIDFileUnableToCreate(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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subdir := filepath.Join(tmpdir, "dir")
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file := filepath.Join(subdir, "pidfile")
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err = createPIDFile(context.Background(), file, testPID)
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// subdir doesn't exist
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assert.Error(err)
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os.Chmod(subdir, testDirMode)
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}
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func TestCreateCLIFunctionNoRuntimeConfig(t *testing.T) {
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assert := assert.New(t)
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ctx := createCLIContext(nil)
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ctx.App.Name = "foo"
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ctx.App.Metadata["foo"] = "bar"
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fn, ok := createCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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err := fn(ctx)
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// no runtime config in the Metadata
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assert.Error(err)
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}
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func TestCreateCLIFunctionSetupConsoleFail(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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runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
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assert.NoError(err)
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subdir := filepath.Join(tmpdir, "dir")
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// does not exist
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consoleSocketPath := filepath.Join(subdir, "console")
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set := flag.NewFlagSet("", 0)
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set.String("console-socket", consoleSocketPath, "")
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ctx := createCLIContext(set)
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ctx.App.Name = "foo"
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ctx.App.Metadata["runtimeConfig"] = runtimeConfig
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fn, ok := createCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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err = fn(ctx)
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// failed to setup console
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assert.Error(err)
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}
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func TestCreateCLIFunctionCreateFail(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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runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
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assert.NoError(err)
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set := flag.NewFlagSet("", 0)
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set.String("console-socket", "", "")
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ctx := createCLIContext(set)
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ctx.App.Name = "foo"
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ctx.App.Metadata["runtimeConfig"] = runtimeConfig
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fn, ok := createCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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err = fn(ctx)
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// create() failed
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assert.Error(err)
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}
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func TestCreateInvalidArgs(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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MockContainers: []*vcmock.Container{
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{MockID: testContainerID},
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{MockID: testContainerID},
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{MockID: testContainerID},
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},
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}
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testingImpl.CreateSandboxFunc = func(ctx context.Context, sandboxConfig vc.SandboxConfig) (vc.VCSandbox, error) {
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return sandbox, nil
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}
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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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katautils.SetCtrsMapTreePath(ctrsMapTreePath)
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defer func() {
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testingImpl.CreateSandboxFunc = nil
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}()
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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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runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
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assert.NoError(err)
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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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pidFilePath := filepath.Join(tmpdir, "pidfile.txt")
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type testData struct {
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containerID string
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bundlePath string
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console string
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pidFilePath string
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detach bool
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systemdCgroup bool
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runtimeConfig oci.RuntimeConfig
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}
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data := []testData{
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{"", "", "", "", false, false, oci.RuntimeConfig{}},
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{"", "", "", "", true, true, oci.RuntimeConfig{}},
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{"foo", "", "", "", true, false, oci.RuntimeConfig{}},
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{testContainerID, bundlePath, testConsole, pidFilePath, false, false, runtimeConfig},
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{testContainerID, bundlePath, testConsole, pidFilePath, true, true, runtimeConfig},
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}
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for i, d := range data {
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err := create(context.Background(), d.containerID, d.bundlePath, d.console, d.pidFilePath, d.detach, d.systemdCgroup, d.runtimeConfig)
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assert.Errorf(err, "test %d (%+v)", i, d)
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}
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}
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func TestCreateInvalidConfigJSON(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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katautils.SetCtrsMapTreePath(ctrsMapTreePath)
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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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runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
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assert.NoError(err)
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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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pidFilePath := filepath.Join(tmpdir, "pidfile.txt")
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ociConfigFile := filepath.Join(bundlePath, "config.json")
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assert.True(katautils.FileExists(ociConfigFile))
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f, err := os.OpenFile(ociConfigFile, os.O_APPEND|os.O_WRONLY, testFileMode)
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assert.NoError(err)
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// invalidate the JSON
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_, err = f.WriteString("{")
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assert.NoError(err)
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f.Close()
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for detach := range []bool{true, false} {
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err := create(context.Background(), testContainerID, bundlePath, testConsole, pidFilePath, true, true, runtimeConfig)
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assert.Errorf(err, "%+v", detach)
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assert.False(vcmock.IsMockError(err))
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os.RemoveAll(path)
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}
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}
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func TestCreateInvalidContainerType(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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katautils.SetCtrsMapTreePath(ctrsMapTreePath)
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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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runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
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assert.NoError(err)
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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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pidFilePath := filepath.Join(tmpdir, "pidfile.txt")
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ociConfigFile := filepath.Join(bundlePath, "config.json")
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assert.True(katautils.FileExists(ociConfigFile))
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spec, err := compatoci.ParseConfigJSON(bundlePath)
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assert.NoError(err)
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// Force an invalid container type
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spec.Annotations = make(map[string]string)
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spec.Annotations[testContainerTypeAnnotation] = "I-am-not-a-valid-container-type"
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// rewrite the file
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err = writeOCIConfigFile(spec, ociConfigFile)
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assert.NoError(err)
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for detach := range []bool{true, false} {
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err := create(context.Background(), testContainerID, bundlePath, testConsole, pidFilePath, true, true, runtimeConfig)
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assert.Errorf(err, "%+v", detach)
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assert.False(vcmock.IsMockError(err))
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os.RemoveAll(path)
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}
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}
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func TestCreateContainerInvalid(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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katautils.SetCtrsMapTreePath(ctrsMapTreePath)
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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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runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
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assert.NoError(err)
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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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pidFilePath := filepath.Join(tmpdir, "pidfile.txt")
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ociConfigFile := filepath.Join(bundlePath, "config.json")
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assert.True(katautils.FileExists(ociConfigFile))
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spec, err := compatoci.ParseConfigJSON(bundlePath)
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assert.NoError(err)
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// Force createContainer() to be called.
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spec.Annotations = make(map[string]string)
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spec.Annotations[testContainerTypeAnnotation] = testContainerTypeContainer
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// rewrite the file
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err = writeOCIConfigFile(spec, ociConfigFile)
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assert.NoError(err)
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for detach := range []bool{true, false} {
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err := create(context.Background(), testContainerID, bundlePath, testConsole, pidFilePath, true, true, runtimeConfig)
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assert.Errorf(err, "%+v", detach)
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assert.False(vcmock.IsMockError(err))
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os.RemoveAll(path)
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}
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}
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func TestCreateProcessCgroupsPathSuccessful(t *testing.T) {
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if tc.NotValid(ktu.NeedRoot()) {
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t.Skip(ktu.TestDisabledNeedRoot)
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}
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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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MockContainers: []*vcmock.Container{
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{MockID: testContainerID},
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},
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}
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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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katautils.SetCtrsMapTreePath(ctrsMapTreePath)
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testingImpl.CreateSandboxFunc = func(ctx context.Context, sandboxConfig vc.SandboxConfig) (vc.VCSandbox, error) {
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return sandbox, nil
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}
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defer func() {
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testingImpl.CreateSandboxFunc = nil
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}()
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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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runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
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assert.NoError(err)
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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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pidFilePath := filepath.Join(tmpdir, "pidfile.txt")
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ociConfigFile := filepath.Join(bundlePath, "config.json")
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assert.True(katautils.FileExists(ociConfigFile))
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spec, err := compatoci.ParseConfigJSON(bundlePath)
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assert.NoError(err)
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// Force sandbox-type container
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spec.Annotations = make(map[string]string)
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spec.Annotations[testContainerTypeAnnotation] = testContainerTypeSandbox
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// Set a limit to ensure processCgroupsPath() considers the
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// cgroup part of the spec
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limit := int64(1024 * 1024)
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spec.Linux.Resources.Memory = &specs.LinuxMemory{
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Limit: &limit,
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}
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// Set an absolute path
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spec.Linux.CgroupsPath = "/this/is/a/cgroup/path"
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var mounts []specs.Mount
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foundMount := false
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// Replace the standard cgroup destination with a temporary one.
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for _, mount := range spec.Mounts {
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if mount.Type == "cgroup" {
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foundMount = true
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cgroupDir, err := ioutil.TempDir("", "cgroup")
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assert.NoError(err)
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defer os.RemoveAll(cgroupDir)
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mount.Destination = cgroupDir
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}
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mounts = append(mounts, mount)
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}
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assert.True(foundMount)
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// Replace mounts with the newly created one.
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spec.Mounts = mounts
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// Rewrite the file
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err = writeOCIConfigFile(spec, ociConfigFile)
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assert.NoError(err)
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err = create(context.Background(), testContainerID, "", testConsole, pidFilePath, false, true, runtimeConfig)
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assert.Error(err, "bundle path not set")
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re := regexp.MustCompile("config.json.*no such file or directory")
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matches := re.FindAllStringSubmatch(err.Error(), -1)
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assert.NotEmpty(matches)
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for _, detach := range []bool{true, false} {
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err := create(context.Background(), testContainerID, bundlePath, testConsole, pidFilePath, detach, true, runtimeConfig)
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assert.NoError(err, "detached: %+v", detach)
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os.RemoveAll(path)
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}
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}
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func TestCreateCreateCgroupsFilesFail(t *testing.T) {
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if tc.NotValid(ktu.NeedNonRoot()) {
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// The os.FileMode(0000) trick doesn't work for root.
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t.Skip(ktu.TestDisabledNeedNonRoot)
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}
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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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MockContainers: []*vcmock.Container{
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{MockID: testContainerID},
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},
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}
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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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katautils.SetCtrsMapTreePath(ctrsMapTreePath)
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testingImpl.CreateSandboxFunc = func(ctx context.Context, sandboxConfig vc.SandboxConfig) (vc.VCSandbox, error) {
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return sandbox, nil
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}
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defer func() {
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testingImpl.CreateSandboxFunc = nil
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}()
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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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runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
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assert.NoError(err)
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bundlePath := filepath.Join(tmpdir, "bundle")
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|
err = makeOCIBundle(bundlePath)
|
|
assert.NoError(err)
|
|
|
|
pidFilePath := filepath.Join(tmpdir, "pidfile.txt")
|
|
|
|
ociConfigFile := filepath.Join(bundlePath, "config.json")
|
|
assert.True(katautils.FileExists(ociConfigFile))
|
|
|
|
spec, err := compatoci.ParseConfigJSON(bundlePath)
|
|
assert.NoError(err)
|
|
|
|
// Force sandbox-type container
|
|
spec.Annotations = make(map[string]string)
|
|
spec.Annotations[testContainerTypeAnnotation] = testContainerTypeSandbox
|
|
|
|
// Set a limit to ensure processCgroupsPath() considers the
|
|
// cgroup part of the spec
|
|
limit := int64(1024 * 1024)
|
|
spec.Linux.Resources.Memory = &specs.LinuxMemory{
|
|
Limit: &limit,
|
|
}
|
|
|
|
// Override
|
|
cgroupsDirPath = filepath.Join(tmpdir, "cgroups")
|
|
err = os.MkdirAll(cgroupsDirPath, testDirMode)
|
|
assert.NoError(err)
|
|
|
|
// Set a relative path
|
|
spec.Linux.CgroupsPath = "./a/relative/path"
|
|
|
|
dir := filepath.Join(cgroupsDirPath, "memory")
|
|
|
|
// Stop directory from being created
|
|
err = os.MkdirAll(dir, os.FileMode(0000))
|
|
assert.NoError(err)
|
|
|
|
// Rewrite the file
|
|
err = writeOCIConfigFile(spec, ociConfigFile)
|
|
assert.NoError(err)
|
|
|
|
for detach := range []bool{true, false} {
|
|
err := create(context.Background(), testContainerID, bundlePath, testConsole, pidFilePath, true, true, runtimeConfig)
|
|
assert.Errorf(err, "%+v", detach)
|
|
assert.False(vcmock.IsMockError(err))
|
|
os.RemoveAll(path)
|
|
}
|
|
}
|
|
|
|
func TestCreateCreateCreatePidFileFail(t *testing.T) {
|
|
if tc.NotValid(ktu.NeedNonRoot()) {
|
|
// The os.FileMode(0000) trick doesn't work for root.
|
|
t.Skip(ktu.TestDisabledNeedNonRoot)
|
|
}
|
|
|
|
assert := assert.New(t)
|
|
|
|
sandbox := &vcmock.Sandbox{
|
|
MockID: testSandboxID,
|
|
MockContainers: []*vcmock.Container{
|
|
{MockID: testContainerID},
|
|
},
|
|
}
|
|
|
|
path, err := ioutil.TempDir("", "containers-mapping")
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(path)
|
|
ctrsMapTreePath = path
|
|
katautils.SetCtrsMapTreePath(ctrsMapTreePath)
|
|
|
|
testingImpl.CreateSandboxFunc = func(ctx context.Context, sandboxConfig vc.SandboxConfig) (vc.VCSandbox, error) {
|
|
return sandbox, nil
|
|
}
|
|
|
|
defer func() {
|
|
testingImpl.CreateSandboxFunc = nil
|
|
}()
|
|
|
|
tmpdir, err := ioutil.TempDir("", "")
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(tmpdir)
|
|
|
|
runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
|
|
assert.NoError(err)
|
|
|
|
bundlePath := filepath.Join(tmpdir, "bundle")
|
|
|
|
err = makeOCIBundle(bundlePath)
|
|
assert.NoError(err)
|
|
|
|
pidDir := filepath.Join(tmpdir, "pid")
|
|
pidFilePath := filepath.Join(pidDir, "pidfile.txt")
|
|
|
|
ociConfigFile := filepath.Join(bundlePath, "config.json")
|
|
assert.True(katautils.FileExists(ociConfigFile))
|
|
|
|
spec, err := compatoci.ParseConfigJSON(bundlePath)
|
|
assert.NoError(err)
|
|
|
|
// Force sandbox-type container
|
|
spec.Annotations = make(map[string]string)
|
|
spec.Annotations[testContainerTypeAnnotation] = testContainerTypeSandbox
|
|
|
|
// Set a limit to ensure processCgroupsPath() considers the
|
|
// cgroup part of the spec
|
|
limit := int64(1024 * 1024)
|
|
spec.Linux.Resources.Memory = &specs.LinuxMemory{
|
|
Limit: &limit,
|
|
}
|
|
|
|
// Rewrite the file
|
|
err = writeOCIConfigFile(spec, ociConfigFile)
|
|
assert.NoError(err)
|
|
|
|
// stop the pidfile from being created
|
|
err = os.MkdirAll(pidDir, os.FileMode(0000))
|
|
assert.NoError(err)
|
|
|
|
for detach := range []bool{true, false} {
|
|
err := create(context.Background(), testContainerID, bundlePath, testConsole, pidFilePath, true, true, runtimeConfig)
|
|
assert.Errorf(err, "%+v", detach)
|
|
assert.False(vcmock.IsMockError(err))
|
|
os.RemoveAll(path)
|
|
}
|
|
}
|
|
|
|
func TestCreate(t *testing.T) {
|
|
if tc.NotValid(ktu.NeedRoot()) {
|
|
t.Skip(ktu.TestDisabledNeedRoot)
|
|
}
|
|
|
|
assert := assert.New(t)
|
|
|
|
sandbox := &vcmock.Sandbox{
|
|
MockID: testSandboxID,
|
|
MockContainers: []*vcmock.Container{
|
|
{MockID: testContainerID},
|
|
},
|
|
}
|
|
|
|
path, err := ioutil.TempDir("", "containers-mapping")
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(path)
|
|
ctrsMapTreePath = path
|
|
katautils.SetCtrsMapTreePath(ctrsMapTreePath)
|
|
|
|
testingImpl.CreateSandboxFunc = func(ctx context.Context, sandboxConfig vc.SandboxConfig) (vc.VCSandbox, error) {
|
|
return sandbox, nil
|
|
}
|
|
|
|
defer func() {
|
|
testingImpl.CreateSandboxFunc = nil
|
|
}()
|
|
|
|
tmpdir, err := ioutil.TempDir("", "")
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(tmpdir)
|
|
|
|
runtimeConfig, err := newTestRuntimeConfig(tmpdir, testConsole, true)
|
|
assert.NoError(err)
|
|
|
|
bundlePath := filepath.Join(tmpdir, "bundle")
|
|
|
|
err = makeOCIBundle(bundlePath)
|
|
assert.NoError(err)
|
|
|
|
pidFilePath := filepath.Join(tmpdir, "pidfile.txt")
|
|
|
|
ociConfigFile := filepath.Join(bundlePath, "config.json")
|
|
assert.True(katautils.FileExists(ociConfigFile))
|
|
|
|
spec, err := compatoci.ParseConfigJSON(bundlePath)
|
|
assert.NoError(err)
|
|
|
|
// Force sandbox-type container
|
|
spec.Annotations = make(map[string]string)
|
|
spec.Annotations[testContainerTypeAnnotation] = testContainerTypeSandbox
|
|
|
|
// Set a limit to ensure processCgroupsPath() considers the
|
|
// cgroup part of the spec
|
|
limit := int64(1024 * 1024)
|
|
spec.Linux.Resources.Memory = &specs.LinuxMemory{
|
|
Limit: &limit,
|
|
}
|
|
|
|
// Rewrite the file
|
|
err = writeOCIConfigFile(spec, ociConfigFile)
|
|
assert.NoError(err)
|
|
|
|
for detach := range []bool{true, false} {
|
|
err := create(context.Background(), testContainerID, bundlePath, testConsole, pidFilePath, true, true, runtimeConfig)
|
|
assert.NoError(err, "%+v", detach)
|
|
os.RemoveAll(path)
|
|
}
|
|
}
|