Golang imagestore.NewStore函数代码示例

func TestGetStoreKeyFromApp(t *testing.T) {
	dir, err := ioutil.TempDir("", "fetch-image")
	if err != nil {
		t.Fatalf("error creating tempdir: %v", err)
	}
	defer os.RemoveAll(dir)
	s, err := imagestore.NewStore(dir)
	if err != nil {
		t.Fatalf("unexpected error %v", err)
	}
	defer s.Dump(false)

	// Test an aci without os and arch labels
	a, err := aci.NewBasicACI(dir, "example.com/app")
	defer a.Close()
	if err != nil {
		t.Fatalf("unexpected error %v", err)
	}
	// Rewind the ACI
	if _, err := a.Seek(0, 0); err != nil {
		t.Fatalf("unexpected error %v", err)
	}
	_, err = s.WriteACI(a, imagestore.ACIFetchInfo{Latest: false})
	if err != nil {
		t.Fatalf("unexpected error %v", err)
	}

	_, err = getStoreKeyFromApp(s, "example.com/app")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
}

func runGCImage(cmd *cobra.Command, args []string) (exit int) {
	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 1
	}

	ts, err := treestore.NewStore(treeStoreDir(), s)
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return
	}

	if err := gcTreeStore(ts); err != nil {
		stderr.PrintE("failed to remove unreferenced treestores", err)
		return 1
	}

	if err := gcStore(s, flagImageGracePeriod); err != nil {
		stderr.Error(err)
		return 1
	}

	return 0
}

func runImageExport(cmd *cobra.Command, args []string) (exit int) {
	if len(args) != 2 {
		cmd.Usage()
		return 1
	}

	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 1
	}

	key, err := getStoreKeyFromAppOrHash(s, args[0])
	if err != nil {
		stderr.Error(err)
		return 1
	}

	aci, err := s.ReadStream(key)
	if err != nil {
		stderr.PrintE("error reading image", err)
		return 1
	}
	defer aci.Close()

	mode := os.O_CREATE | os.O_WRONLY
	if flagOverwriteACI {
		mode |= os.O_TRUNC
	} else {
		mode |= os.O_EXCL
	}
	f, err := os.OpenFile(args[1], mode, 0644)
	if err != nil {
		if os.IsExist(err) {
			stderr.Print("output ACI file exists (try --overwrite)")
		} else {
			stderr.PrintE(fmt.Sprintf("unable to open output ACI file %s", args[1]), err)
		}
		return 1
	}
	defer func() {
		err := f.Close()
		if err != nil {
			stderr.PrintE("error closing output ACI file", err)
			exit = 1
		}
	}()

	_, err = io.Copy(f, aci)
	if err != nil {
		stderr.PrintE("error writing to output ACI file", err)
		return 1
	}

	return 0
}

// deletePod cleans up files and resource associated with the pod
// pod must be under exclusive lock and be in either ExitedGarbage
// or Garbage state
func deletePod(p *pkgPod.Pod) {
	podState := p.State()
	if podState != pkgPod.ExitedGarbage && podState != pkgPod.Garbage {
		stderr.Panicf("logic error: deletePod called with non-garbage pod %q (status %q)", p.UUID, p.State())
	}

	if podState == pkgPod.ExitedGarbage {
		s, err := imagestore.NewStore(storeDir())
		if err != nil {
			stderr.PrintE("cannot open store", err)
			return
		}
		defer s.Close()

		ts, err := treestore.NewStore(treeStoreDir(), s)
		if err != nil {
			stderr.PrintE("cannot open store", err)
			return
		}

		if globalFlags.Debug {
			stage0.InitDebug()
		}

		if err := mountPodStage1(ts, p); err == nil {
			if err = stage0.GC(p.Path(), p.UUID); err != nil {
				stderr.PrintE(fmt.Sprintf("problem performing stage1 GC on %q", p.UUID), err)
			}
			// an overlay fs can be mounted over itself, let's unmount it here
			// if we mounted it before to avoid problems when running
			// stage0.MountGC
			if p.UsesOverlay() {
				stage1Mnt := common.Stage1RootfsPath(p.Path())
				if err := syscall.Unmount(stage1Mnt, 0); err != nil {
					stderr.PrintE("error unmounting stage1", err)
				}
			}
		} else {
			stderr.PrintE("skipping stage1 GC", err)
		}

		// unmount all leftover mounts
		if err := stage0.MountGC(p.Path(), p.UUID.String()); err != nil {
			stderr.PrintE(fmt.Sprintf("GC of leftover mounts for pod %q failed", p.UUID), err)
			return
		}
	}

	if err := os.RemoveAll(p.Path()); err != nil {
		stderr.PrintE(fmt.Sprintf("unable to remove pod %q", p.UUID), err)
		os.Exit(254)
	}
}

func newV1AlphaAPIServer() (*v1AlphaAPIServer, error) {
	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		return nil, err
	}

	cache, err := lru.New(defaultCacheSize)
	if err != nil {
		return nil, err
	}

	return &v1AlphaAPIServer{
		store:    s,
		podCache: cache,
	}, nil
}

func TestTreeStoreRemove(t *testing.T) {
	if !sys.HasChrootCapability() {
		t.Skipf("chroot capability not available. Disabling test.")
	}

	dir, err := ioutil.TempDir("", tstprefix)
	if err != nil {
		t.Fatalf("error creating tempdir: %v", err)
	}
	defer os.RemoveAll(dir)

	s, err := imagestore.NewStore(dir)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	ts, err := NewStore(dir, s)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	key, err := testStoreWriteACI(dir, s)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	id := "treestoreid01"

	// Test non existent dir
	err = ts.remove(id)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	// Test rendered tree
	_, err = ts.render(id, key)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	err = ts.remove(id)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
}

func runRmImage(cmd *cobra.Command, args []string) (exit int) {
	if len(args) < 1 {
		stderr.Print("must provide at least one image ID")
		return 254
	}

	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 254
	}

	if err := rmImages(s, args); err != nil {
		stderr.Error(err)
		return 254
	}

	return 0
}

// mountOverlay mounts the app from the overlay-rendered pod to the destination directory.
func mountOverlay(pod *pod, app *schema.RuntimeApp, dest string) error {
	if _, err := os.Stat(dest); err != nil {
		return err
	}

	s, err := imagestore.NewStore(getDataDir())
	if err != nil {
		return errwrap.Wrap(errors.New("cannot open store"), err)
	}

	ts, err := treestore.NewStore(treeStoreDir(), s)
	if err != nil {
		return errwrap.Wrap(errors.New("cannot open treestore"), err)
	}

	treeStoreID, err := pod.getAppTreeStoreID(app.Name)
	if err != nil {
		return err
	}
	lower := ts.GetRootFS(treeStoreID)
	imgDir := filepath.Join(filepath.Join(pod.path(), "overlay"), treeStoreID)
	if _, err := os.Stat(imgDir); err != nil {
		return err
	}
	upper := filepath.Join(imgDir, "upper", app.Name.String())
	if _, err := os.Stat(upper); err != nil {
		return err
	}
	work := filepath.Join(imgDir, "work", app.Name.String())
	if _, err := os.Stat(work); err != nil {
		return err
	}

	if err := overlay.Mount(&overlay.MountCfg{lower, upper, work, dest, ""}); err != nil {
		return errwrap.Wrap(errors.New("problem mounting overlayfs directory"), err)
	}

	return nil
}

func runImageCatManifest(cmd *cobra.Command, args []string) (exit int) {
	if len(args) != 1 {
		cmd.Usage()
		return 1
	}

	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 1
	}

	key, err := getStoreKeyFromAppOrHash(s, args[0])
	if err != nil {
		stderr.Error(err)
		return 1
	}

	manifest, err := s.GetImageManifest(key)
	if err != nil {
		stderr.PrintE("cannot get image manifest", err)
		return 1
	}

	var b []byte
	if flagPrettyPrint {
		b, err = json.MarshalIndent(manifest, "", "\t")
	} else {
		b, err = json.Marshal(manifest)
	}
	if err != nil {
		stderr.PrintE("cannot read the image manifest", err)
		return 1
	}

	stdout.Print(string(b))
	return 0
}

func runImages(cmd *cobra.Command, args []string) int {
	var errors []error
	tabBuffer := new(bytes.Buffer)
	tabOut := getTabOutWithWriter(tabBuffer)

	if !flagNoLegend {
		var headerFields []string
		for _, f := range flagImagesFields.Options {
			headerFields = append(headerFields, ImagesFieldHeaderMap[f])
		}
		fmt.Fprintf(tabOut, "%s\n", strings.Join(headerFields, "\t"))
	}

	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 1
	}

	remotes, err := s.GetAllRemotes()
	if err != nil {
		stderr.PrintE("unable to get remotes", err)
		return 1
	}

	remoteMap := make(map[string]*imagestore.Remote)
	for _, r := range remotes {
		remoteMap[r.BlobKey] = r
	}

	var sortAciinfoFields []string
	for _, f := range flagImagesSortFields.Options {
		sortAciinfoFields = append(sortAciinfoFields, ImagesFieldAciInfoMap[f])
	}
	aciInfos, err := s.GetAllACIInfos(sortAciinfoFields, bool(flagImagesSortAsc))
	if err != nil {
		stderr.PrintE("unable to get aci infos", err)
		return 1
	}

	for _, aciInfo := range aciInfos {
		imj, err := s.GetImageManifestJSON(aciInfo.BlobKey)
		if err != nil {
			// ignore aciInfo with missing image manifest as it can be deleted in the meantime
			continue
		}
		var im *schema.ImageManifest
		if err = json.Unmarshal(imj, &im); err != nil {
			errors = append(errors, newImgListLoadError(err, imj, aciInfo.BlobKey))
			continue
		}
		version, ok := im.Labels.Get("version")
		var fieldValues []string
		for _, f := range flagImagesFields.Options {
			fieldValue := ""
			switch f {
			case l(id):
				hashKey := aciInfo.BlobKey
				if !flagFullOutput {
					// The short hash form is [HASH_ALGO]-[FIRST 12 CHAR]
					// For example, sha512-123456789012
					pos := strings.Index(hashKey, "-")
					trimLength := pos + 13
					if pos > 0 && trimLength < len(hashKey) {
						hashKey = hashKey[:trimLength]
					}
				}
				fieldValue = hashKey
			case l(name):
				fieldValue = aciInfo.Name
				if ok {
					fieldValue = fmt.Sprintf("%s:%s", fieldValue, version)
				}
			case l(importTime):
				if flagFullOutput {
					fieldValue = aciInfo.ImportTime.Format(defaultTimeLayout)
				} else {
					fieldValue = humanize.Time(aciInfo.ImportTime)
				}
			case l(lastUsed):
				if flagFullOutput {
					fieldValue = aciInfo.LastUsed.Format(defaultTimeLayout)
				} else {
					fieldValue = humanize.Time(aciInfo.LastUsed)
				}
			case l(size):
				totalSize := aciInfo.Size + aciInfo.TreeStoreSize
				if flagFullOutput {
					fieldValue = fmt.Sprintf("%d", totalSize)
				} else {
					fieldValue = humanize.IBytes(uint64(totalSize))
				}
			case l(latest):
				fieldValue = fmt.Sprintf("%t", aciInfo.Latest)
			case l(insecureOptions):
				f, err := rktflag.NewSecFlagsFromValue(int(aciInfo.InsecureOptions))
				if err != nil {
					stderr.Error(err)
					return 1
				}
//.........这里部分代码省略.........

func TestTreeStore(t *testing.T) {
	if !sys.HasChrootCapability() {
		t.Skipf("chroot capability not available. Disabling test.")
	}

	dir, err := ioutil.TempDir("", tstprefix)
	if err != nil {
		t.Fatalf("error creating tempdir: %v", err)
	}
	defer os.RemoveAll(dir)

	s, err := imagestore.NewStore(dir)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	ts, err := NewStore(dir, s)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	imj := `
		{
		    "acKind": "ImageManifest",
		    "acVersion": "0.8.8",
		    "name": "example.com/test01"
		}
	`

	entries := []*aci.ACIEntry{
		// An empty dir
		{
			Header: &tar.Header{
				Name:     "rootfs/a",
				Typeflag: tar.TypeDir,
			},
		},
		{
			Contents: "hello",
			Header: &tar.Header{
				Name: "hello.txt",
				Size: 5,
			},
		},
		{
			Header: &tar.Header{
				Name:     "rootfs/link.txt",
				Linkname: "rootfs/hello.txt",
				Typeflag: tar.TypeSymlink,
			},
		},
		// dangling symlink
		{
			Header: &tar.Header{
				Name:     "rootfs/link2.txt",
				Linkname: "rootfs/missingfile.txt",
				Typeflag: tar.TypeSymlink,
			},
		},
		{
			Header: &tar.Header{
				Name:     "rootfs/fifo",
				Typeflag: tar.TypeFifo,
			},
		},
	}
	aci, err := aci.NewACI(dir, imj, entries)
	if err != nil {
		t.Fatalf("error creating test tar: %v", err)
	}
	defer aci.Close()

	// Rewind the ACI
	if _, err := aci.Seek(0, 0); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	// Import the new ACI
	key, err := s.WriteACI(aci, imagestore.ACIFetchInfo{Latest: false})
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	// Ask the store to render the treestore
	id, _, err := ts.Render(key, false)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	// Verify image Hash. Should be the same.
	_, err = ts.Check(id)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	// Change a file permission
	rootfs := ts.GetRootFS(id)
	err = os.Chmod(filepath.Join(rootfs, "a"), 0600)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
//.........这里部分代码省略.........

func runAppAdd(cmd *cobra.Command, args []string) (exit int) {
	if len(args) < 2 {
		stderr.Print("must provide the pod UUID and an IMAGEID")
		return 254
	}

	err := parseApps(&rktApps, args[1:], cmd.Flags(), true)
	if err != nil {
		stderr.PrintE("error parsing app image arguments", err)
		return 254
	}

	if rktApps.Count() > 1 {
		stderr.Print("must give only one app")
		return 254
	}

	p, err := pkgPod.PodFromUUIDString(getDataDir(), args[0])
	if err != nil {
		stderr.PrintE("problem retrieving pod", err)
		return 254
	}
	defer p.Close()

	if p.State() != pkgPod.Running {
		stderr.Printf("pod %q isn't currently running", p.UUID)
		return 254
	}

	if !p.IsSupervisorReady() {
		stderr.Printf("supervisor for pod %q is not yet ready", p.UUID)
		return 254
	}

	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 254
	}

	ts, err := treestore.NewStore(treeStoreDir(), s)
	if err != nil {
		stderr.PrintE("cannot open treestore", err)
		return 254
	}

	fn := &image.Finder{
		S:  s,
		Ts: ts,
		Ks: getKeystore(),

		StoreOnly: true,
		NoStore:   false,
	}

	img, err := fn.FindImage(args[1], "")
	if err != nil {
		stderr.PrintE("error finding images", err)
		return 254
	}

	podPID, err := p.ContainerPid1()
	if err != nil {
		stderr.PrintE(fmt.Sprintf("unable to determine the pid for pod %q", p.UUID), err)
		return 254
	}

	ccfg := stage0.CommonConfig{
		DataDir:   getDataDir(),
		Store:     s,
		TreeStore: ts,
		UUID:      p.UUID,
		Debug:     globalFlags.Debug,
	}

	rktgid, err := common.LookupGid(common.RktGroup)
	if err != nil {
		stderr.Printf("group %q not found, will use default gid when rendering images", common.RktGroup)
		rktgid = -1
	}

	cfg := stage0.AddConfig{
		CommonConfig: &ccfg,
		Image:        *img,
		Apps:         &rktApps,
		RktGid:       rktgid,
		UsesOverlay:  p.UsesOverlay(),
		PodPath:      p.Path(),
		PodPID:       podPID,
	}

	if globalFlags.Debug {
		stage0.InitDebug()
	}

	err = stage0.AddApp(cfg)
	if err != nil {
		stderr.PrintE("error adding app to pod", err)
		return 254
	}
//.........这里部分代码省略.........

func runImages(cmd *cobra.Command, args []string) int {
	var errors []error
	tabBuffer := new(bytes.Buffer)
	tabOut := getTabOutWithWriter(tabBuffer)

	if !flagNoLegend {
		var headerFields []string
		for _, f := range flagImagesFields.Options {
			headerFields = append(headerFields, ImagesFieldHeaderMap[f])
		}
		fmt.Fprintf(tabOut, "%s\n", strings.Join(headerFields, "\t"))
	}

	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 254
	}

	remotes, err := s.GetAllRemotes()
	if err != nil {
		stderr.PrintE("unable to get remotes", err)
		return 254
	}

	remoteMap := make(map[string]*imagestore.Remote)
	for _, r := range remotes {
		remoteMap[r.BlobKey] = r
	}

	var sortAciinfoFields []string
	for _, f := range flagImagesSortFields.Options {
		sortAciinfoFields = append(sortAciinfoFields, ImagesFieldAciInfoMap[f])
	}
	aciInfos, err := s.GetAllACIInfos(sortAciinfoFields, bool(flagImagesSortAsc))
	if err != nil {
		stderr.PrintE("unable to get aci infos", err)
		return 254
	}

	for _, aciInfo := range aciInfos {
		imj, err := s.GetImageManifestJSON(aciInfo.BlobKey)
		if err != nil {
			// ignore aciInfo with missing image manifest as it can be deleted in the meantime
			continue
		}
		var im *schema.ImageManifest
		if err = json.Unmarshal(imj, &im); err != nil {
			errors = append(errors, newImgListLoadError(err, imj, aciInfo.BlobKey))
			continue
		}
		version, ok := im.Labels.Get("version")
		var fieldValues []string
		for _, f := range flagImagesFields.Options {
			fieldValue := ""
			switch f {
			case l(id):
				hashKey := aciInfo.BlobKey
				if !flagFullOutput {
					// The short hash form is [HASH_ALGO]-[FIRST 12 CHAR]
					// For example, sha512-123456789012
					pos := strings.Index(hashKey, "-")
					trimLength := pos + 13
					if pos > 0 && trimLength < len(hashKey) {
						hashKey = hashKey[:trimLength]
					}
				}
				fieldValue = hashKey
			case l(name):
				fieldValue = aciInfo.Name
				if ok {
					fieldValue = fmt.Sprintf("%s:%s", fieldValue, version)
				}
			case l(importTime):
				if flagFullOutput {
					fieldValue = aciInfo.ImportTime.Format(defaultTimeLayout)
				} else {
					fieldValue = humanize.Time(aciInfo.ImportTime)
				}
			case l(lastUsed):
				if flagFullOutput {
					fieldValue = aciInfo.LastUsed.Format(defaultTimeLayout)
				} else {
					fieldValue = humanize.Time(aciInfo.LastUsed)
				}
			case l(size):
				totalSize := aciInfo.Size + aciInfo.TreeStoreSize
				if flagFullOutput {
					fieldValue = fmt.Sprintf("%d", totalSize)
				} else {
					fieldValue = humanize.IBytes(uint64(totalSize))
				}
			case l(latest):
				fieldValue = fmt.Sprintf("%t", aciInfo.Latest)
			}
			fieldValues = append(fieldValues, fieldValue)
		}
		fmt.Fprintf(tabOut, "%s\n", strings.Join(fieldValues, "\t"))
	}

//.........这里部分代码省略.........

func runRunPrepared(cmd *cobra.Command, args []string) (exit int) {
	if len(args) != 1 {
		cmd.Usage()
		return 1
	}

	p, err := getPodFromUUIDString(args[0])
	if err != nil {
		stderr.PrintE("problem retrieving pod", err)
		return 1
	}
	defer p.Close()

	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 1
	}

	ts, err := treestore.NewStore(treeStoreDir(), s)
	if err != nil {
		stderr.PrintE("cannot open treestore", err)
		return 1
	}

	if !p.isPrepared {
		stderr.Printf("pod %q is not prepared", p.uuid)
		return 1
	}

	if flagInteractive {
		ac, err := p.getAppCount()
		if err != nil {
			stderr.PrintE("cannot get pod's app count", err)
			return 1
		}
		if ac > 1 {
			stderr.Print("interactive option only supports pods with one app")
			return 1
		}
	}

	// Make sure we have a metadata service available before we move to
	// run state so that the user can rerun the command without needing
	// to prepare the image again.
	if flagMDSRegister {
		if err := stage0.CheckMdsAvailability(); err != nil {
			stderr.Error(err)
			return 1
		}
	}

	if err := p.xToRun(); err != nil {
		stderr.PrintE("cannot transition to run", err)
		return 1
	}

	lfd, err := p.Fd()
	if err != nil {
		stderr.PrintE("unable to get lock fd", err)
		return 1
	}

	apps, err := p.getApps()
	if err != nil {
		stderr.PrintE("unable to get app list", err)
		return 1
	}

	rktgid, err := common.LookupGid(common.RktGroup)
	if err != nil {
		stderr.Printf("group %q not found, will use default gid when rendering images", common.RktGroup)
		rktgid = -1
	}

	rcfg := stage0.RunConfig{
		CommonConfig: &stage0.CommonConfig{
			Store:     s,
			TreeStore: ts,
			UUID:      p.uuid,
			Debug:     globalFlags.Debug,
		},
		Net:         flagNet,
		LockFd:      lfd,
		Interactive: flagInteractive,
		DNS:         flagDNS,
		DNSSearch:   flagDNSSearch,
		DNSOpt:      flagDNSOpt,
		MDSRegister: flagMDSRegister,
		Apps:        apps,
		RktGid:      rktgid,
		Hostname:    flagHostname,
	}
	if globalFlags.Debug {
		stage0.InitDebug()
	}
	stage0.Run(rcfg, p.path(), getDataDir()) // execs, never returns
	return 1
}

func runPrepare(cmd *cobra.Command, args []string) (exit int) {
	var err error
	origStdout := os.Stdout
	privateUsers := user.NewBlankUidRange()
	if flagQuiet {
		if os.Stdout, err = os.Open("/dev/null"); err != nil {
			stderr.PrintE("unable to open /dev/null", err)
			return 254
		}
	}

	if flagStoreOnly && flagNoStore {
		stderr.Print("both --store-only and --no-store specified")
		return 254
	}

	if flagPrivateUsers {
		if !common.SupportsUserNS() {
			stderr.Print("--private-users is not supported, kernel compiled without user namespace support")
			return 254
		}
		privateUsers.SetRandomUidRange(user.DefaultRangeCount)
	}

	if err = parseApps(&rktApps, args, cmd.Flags(), true); err != nil {
		stderr.PrintE("error parsing app image arguments", err)
		return 254
	}

	if len(flagPodManifest) > 0 && (rktApps.Count() > 0 ||
		(*appsVolume)(&rktApps).String() != "" || (*appMount)(&rktApps).String() != "" ||
		len(flagPorts) > 0 || flagStoreOnly || flagNoStore ||
		flagInheritEnv || !flagExplicitEnv.IsEmpty() || !flagEnvFromFile.IsEmpty()) {
		stderr.Print("conflicting flags set with --pod-manifest (see --help)")
		return 254
	}

	if rktApps.Count() < 1 && len(flagPodManifest) == 0 {
		stderr.Print("must provide at least one image or specify the pod manifest")
		return 254
	}

	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 254
	}

	ts, err := treestore.NewStore(treeStoreDir(), s)
	if err != nil {
		stderr.PrintE("cannot open treestore", err)
		return 254
	}

	config, err := getConfig()
	if err != nil {
		stderr.PrintE("cannot get configuration", err)
		return 254
	}

	s1img, err := getStage1Hash(s, ts, config)
	if err != nil {
		stderr.Error(err)
		return 254
	}

	fn := &image.Finder{
		S:                  s,
		Ts:                 ts,
		Ks:                 getKeystore(),
		Headers:            config.AuthPerHost,
		DockerAuth:         config.DockerCredentialsPerRegistry,
		InsecureFlags:      globalFlags.InsecureFlags,
		Debug:              globalFlags.Debug,
		TrustKeysFromHTTPS: globalFlags.TrustKeysFromHTTPS,

		StoreOnly: flagStoreOnly,
		NoStore:   flagNoStore,
		WithDeps:  true,
	}
	if err := fn.FindImages(&rktApps); err != nil {
		stderr.PrintE("error finding images", err)
		return 254
	}

	p, err := pkgPod.NewPod(getDataDir())
	if err != nil {
		stderr.PrintE("error creating new pod", err)
		return 254
	}

	cfg := stage0.CommonConfig{
		DataDir:     getDataDir(),
		Store:       s,
		TreeStore:   ts,
		Stage1Image: *s1img,
		UUID:        p.UUID,
		Debug:       globalFlags.Debug,
	}

//.........这里部分代码省略.........