func (lb *FileBackend) BuildACI(layerNumber int, layerID string, dockerURL *types.ParsedDockerURL, outputDir string, tmpBaseDir string, curPwl []string, compression common.Compression) (string, *schema.ImageManifest, error) {
tmpDir, err := ioutil.TempDir(tmpBaseDir, "docker2aci-")
if err != nil {
return "", nil, fmt.Errorf("error creating dir: %v", err)
}
defer os.RemoveAll(tmpDir)
j, err := getJson(lb.file, layerID)
if err != nil {
return "", nil, fmt.Errorf("error getting image json: %v", err)
}
layerData := types.DockerImageData{}
if err := json.Unmarshal(j, &layerData); err != nil {
return "", nil, fmt.Errorf("error unmarshaling layer data: %v", err)
}
tmpLayerPath := path.Join(tmpDir, layerID)
tmpLayerPath += ".tar"
layerFile, err := extractEmbeddedLayer(lb.file, layerID, tmpLayerPath)
if err != nil {
return "", nil, fmt.Errorf("error getting layer from file: %v", err)
}
defer layerFile.Close()
log.Debug("Generating layer ACI...")
aciPath, manifest, err := internal.GenerateACI(layerNumber, layerData, dockerURL, outputDir, layerFile, curPwl, compression)
if err != nil {
return "", nil, fmt.Errorf("error generating ACI: %v", err)
}
return aciPath, manifest, nil
}
func getParent(file *os.File, imgID string) (string, error) {
var parent string
_, err := file.Seek(0, 0)
if err != nil {
return "", fmt.Errorf("error seeking file: %v", err)
}
jsonPath := filepath.Join(imgID, "json")
parentWalker := func(t *tarball.TarFile) error {
if filepath.Clean(t.Name()) == jsonPath {
jsonb, err := ioutil.ReadAll(t.TarStream)
if err != nil {
return fmt.Errorf("error reading layer json: %v", err)
}
var dockerData types.DockerImageData
if err := json.Unmarshal(jsonb, &dockerData); err != nil {
return fmt.Errorf("error unmarshaling layer data: %v", err)
}
parent = dockerData.Parent
}
return nil
}
tr := tar.NewReader(file)
if err := tarball.Walk(*tr, parentWalker); err != nil {
return "", err
}
log.Debug(fmt.Sprintf("Layer %q depends on layer %q", imgID, parent))
return parent, nil
}
func convertPorts(dockerExposedPorts map[string]struct{}, dockerPortSpecs []string) ([]appctypes.Port, error) {
ports := []appctypes.Port{}
for ep := range dockerExposedPorts {
appcPort, err := parseDockerPort(ep)
if err != nil {
return nil, err
}
ports = append(ports, *appcPort)
}
if dockerExposedPorts == nil && dockerPortSpecs != nil {
log.Debug("warning: docker image uses deprecated PortSpecs field")
for _, ep := range dockerPortSpecs {
appcPort, err := parseDockerPort(ep)
if err != nil {
return nil, err
}
ports = append(ports, *appcPort)
}
}
sort.Sort(appcPortSorter(ports))
return ports, nil
}
func (rb *RepositoryBackend) buildACIV1(layerNumber int, layerID string, dockerURL *types.ParsedDockerURL, outputDir string, tmpBaseDir string, curPwl []string, compression common.Compression) (string, *schema.ImageManifest, error) {
tmpDir, err := ioutil.TempDir(tmpBaseDir, "docker2aci-")
if err != nil {
return "", nil, fmt.Errorf("error creating dir: %v", err)
}
defer os.RemoveAll(tmpDir)
j, size, err := rb.getJsonV1(layerID, rb.repoData.Endpoints[0], rb.repoData)
if err != nil {
return "", nil, fmt.Errorf("error getting image json: %v", err)
}
layerData := types.DockerImageData{}
if err := json.Unmarshal(j, &layerData); err != nil {
return "", nil, fmt.Errorf("error unmarshaling layer data: %v", err)
}
layerFile, err := rb.getLayerV1(layerID, rb.repoData.Endpoints[0], rb.repoData, size, tmpDir)
if err != nil {
return "", nil, fmt.Errorf("error getting the remote layer: %v", err)
}
defer layerFile.Close()
log.Debug("Generating layer ACI...")
aciPath, manifest, err := internal.GenerateACI(layerNumber, layerData, dockerURL, outputDir, layerFile, curPwl, compression)
if err != nil {
return "", nil, fmt.Errorf("error generating ACI: %v", err)
}
return aciPath, manifest, nil
}
// squashLayers receives a list of ACI layer file names ordered from base image
// to application image and squashes them into one ACI
func squashLayers(images []acirenderer.Image, aciRegistry acirenderer.ACIRegistry, parsedDockerURL types.ParsedDockerURL, outputDir string, compression common.Compression) (path string, err error) {
log.Debug("Squashing layers...")
log.Debug("Rendering ACI...")
renderedACI, err := acirenderer.GetRenderedACIFromList(images, aciRegistry)
if err != nil {
return "", fmt.Errorf("error rendering squashed image: %v", err)
}
manifests, err := getManifests(renderedACI, aciRegistry)
if err != nil {
return "", fmt.Errorf("error getting manifests: %v", err)
}
squashedFilename := getSquashedFilename(parsedDockerURL)
squashedImagePath := filepath.Join(outputDir, squashedFilename)
squashedTempFile, err := ioutil.TempFile(outputDir, "docker2aci-squashedFile-")
if err != nil {
return "", err
}
defer func() {
if err == nil {
err = squashedTempFile.Close()
} else {
// remove temp file on error
// we ignore its error to not mask the real error
os.Remove(squashedTempFile.Name())
}
}()
log.Debug("Writing squashed ACI...")
if err := writeSquashedImage(squashedTempFile, renderedACI, aciRegistry, manifests, compression); err != nil {
return "", fmt.Errorf("error writing squashed image: %v", err)
}
log.Debug("Validating squashed ACI...")
if err := internal.ValidateACI(squashedTempFile.Name()); err != nil {
return "", fmt.Errorf("error validating image: %v", err)
}
if err := os.Rename(squashedTempFile.Name(), squashedImagePath); err != nil {
return "", err
}
log.Debug("ACI squashed!")
return squashedImagePath, nil
}
func convertReal(backend internal.Docker2ACIBackend, dockerURL string, squash bool, outputDir string, tmpDir string, compression common.Compression) ([]string, error) {
log.Debug("Getting image info...")
ancestry, parsedDockerURL, err := backend.GetImageInfo(dockerURL)
if err != nil {
return nil, err
}
layersOutputDir := outputDir
if squash {
layersOutputDir, err = ioutil.TempDir(tmpDir, "docker2aci-")
if err != nil {
return nil, fmt.Errorf("error creating dir: %v", err)
}
defer os.RemoveAll(layersOutputDir)
}
conversionStore := newConversionStore()
var images acirenderer.Images
var aciLayerPaths []string
var curPwl []string
for i := len(ancestry) - 1; i >= 0; i-- {
layerID := ancestry[i]
// only compress individual layers if we're not squashing
layerCompression := compression
if squash {
layerCompression = common.NoCompression
}
aciPath, manifest, err := backend.BuildACI(i, layerID, parsedDockerURL, layersOutputDir, tmpDir, curPwl, layerCompression)
if err != nil {
return nil, fmt.Errorf("error building layer: %v", err)
}
key, err := conversionStore.WriteACI(aciPath)
if err != nil {
return nil, fmt.Errorf("error inserting in the conversion store: %v", err)
}
images = append(images, acirenderer.Image{Im: manifest, Key: key, Level: uint16(i)})
aciLayerPaths = append(aciLayerPaths, aciPath)
curPwl = manifest.PathWhitelist
}
// acirenderer expects images in order from upper to base layer
images = util.ReverseImages(images)
if squash {
squashedImagePath, err := squashLayers(images, conversionStore, *parsedDockerURL, outputDir, compression)
if err != nil {
return nil, fmt.Errorf("error squashing image: %v", err)
}
aciLayerPaths = []string{squashedImagePath}
}
return aciLayerPaths, nil
}
func (lb *FileBackend) BuildACIV22(layerIDs []string, dockerURL *types.ParsedDockerURL, outputDir string, tmpBaseDir string, compression common.Compression) ([]string, []*schema.ImageManifest, error) {
if len(layerIDs) < 2 {
return nil, nil, fmt.Errorf("insufficient layers for oci image")
}
var aciLayerPaths []string
var aciManifests []*schema.ImageManifest
var curPwl []string
imageID := layerIDs[0]
layerIDs = layerIDs[1:]
j, err := getJsonV22(lb.file, imageID)
if err != nil {
return nil, nil, fmt.Errorf("error getting layer from file: %v", err)
}
imageConfig := typesV2.ImageConfig{}
if err := json.Unmarshal(j, &imageConfig); err != nil {
return nil, nil, fmt.Errorf("error unmarshaling image data: %v", err)
}
tmpDir, err := ioutil.TempDir(tmpBaseDir, "docker2aci-")
if err != nil {
return nil, nil, fmt.Errorf("error creating dir: %v", err)
}
defer os.RemoveAll(tmpDir)
for i := len(layerIDs) - 1; i >= 0; i-- {
parts := strings.Split(layerIDs[i], ":")
tmpLayerPath := path.Join(tmpDir, parts[1])
tmpLayerPath += ".tar"
layerTarPath := path.Join(append([]string{"blobs"}, parts...)...)
layerFile, err := extractEmbeddedLayer(lb.file, layerTarPath, tmpLayerPath)
if err != nil {
return nil, nil, fmt.Errorf("error getting layer from file: %v", err)
}
defer layerFile.Close()
log.Debug("Generating layer ACI...")
var aciPath string
var manifest *schema.ImageManifest
if i != 0 {
aciPath, manifest, err = internal.GenerateACI22LowerLayer(dockerURL, parts[1], outputDir, layerFile, curPwl, compression)
} else {
aciPath, manifest, err = internal.GenerateACI22TopLayer(dockerURL, &imageConfig, parts[1], outputDir, layerFile, curPwl, compression, aciManifests)
}
if err != nil {
return nil, nil, fmt.Errorf("error generating ACI: %v", err)
}
aciLayerPaths = append(aciLayerPaths, aciPath)
aciManifests = append(aciManifests, manifest)
curPwl = manifest.PathWhitelist
}
return aciLayerPaths, aciManifests, nil
}
func (lb *FileBackend) BuildACI(layerIDs []string, dockerURL *types.ParsedDockerURL, outputDir string, tmpBaseDir string, compression common.Compression) ([]string, []*schema.ImageManifest, error) {
if strings.Contains(layerIDs[0], ":") {
return lb.BuildACIV22(layerIDs, dockerURL, outputDir, tmpBaseDir, compression)
}
var aciLayerPaths []string
var aciManifests []*schema.ImageManifest
var curPwl []string
tmpDir, err := ioutil.TempDir(tmpBaseDir, "docker2aci-")
if err != nil {
return nil, nil, fmt.Errorf("error creating dir: %v", err)
}
defer os.RemoveAll(tmpDir)
for i := len(layerIDs) - 1; i >= 0; i-- {
if err := common.ValidateLayerId(layerIDs[i]); err != nil {
return nil, nil, err
}
j, err := getJson(lb.file, layerIDs[i])
if err != nil {
return nil, nil, fmt.Errorf("error getting layer json: %v", err)
}
layerData := types.DockerImageData{}
if err := json.Unmarshal(j, &layerData); err != nil {
return nil, nil, fmt.Errorf("error unmarshaling layer data: %v", err)
}
tmpLayerPath := path.Join(tmpDir, layerIDs[i])
tmpLayerPath += ".tar"
layerTarPath := path.Join(layerIDs[i], "layer.tar")
layerFile, err := extractEmbeddedLayer(lb.file, layerTarPath, tmpLayerPath)
if err != nil {
return nil, nil, fmt.Errorf("error getting layer from file: %v", err)
}
defer layerFile.Close()
log.Debug("Generating layer ACI...")
aciPath, manifest, err := internal.GenerateACI(i, layerData, dockerURL, outputDir, layerFile, curPwl, compression)
if err != nil {
return nil, nil, fmt.Errorf("error generating ACI: %v", err)
}
aciLayerPaths = append(aciLayerPaths, aciPath)
aciManifests = append(aciManifests, manifest)
curPwl = manifest.PathWhitelist
}
return aciLayerPaths, aciManifests, nil
}
// getAncestry computes an image ancestry, returning an ordered list
// of dependencies starting from the topmost image to the base.
// It checks for dependency loops via duplicate detection in the image
// chain and errors out in such cases.
func getAncestry(file *os.File, imgID string) ([]string, error) {
var ancestry []string
deps := make(map[string]bool)
curImgID := imgID
var err error
for curImgID != "" {
if deps[curImgID] {
return nil, fmt.Errorf("dependency loop detected at image %q", curImgID)
}
deps[curImgID] = true
ancestry = append(ancestry, curImgID)
log.Debug(fmt.Sprintf("Getting ancestry for layer %q", curImgID))
curImgID, err = getParent(file, curImgID)
if err != nil {
return nil, err
}
}
return ancestry, nil
}
func (rb *RepositoryBackend) buildACIV2(layerNumber int, layerID string, dockerURL *types.ParsedDockerURL, outputDir string, tmpBaseDir string, curPwl []string, compression common.Compression) (string, *schema.ImageManifest, error) {
manifest := rb.imageManifests[*dockerURL]
layerIndex, err := getLayerIndex(layerID, manifest)
if err != nil {
return "", nil, err
}
if len(manifest.History) <= layerIndex {
return "", nil, fmt.Errorf("history not found for layer %s", layerID)
}
layerData := types.DockerImageData{}
if err := json.Unmarshal([]byte(manifest.History[layerIndex].V1Compatibility), &layerData); err != nil {
return "", nil, fmt.Errorf("error unmarshaling layer data: %v", err)
}
tmpDir, err := ioutil.TempDir(tmpBaseDir, "docker2aci-")
if err != nil {
return "", nil, fmt.Errorf("error creating dir: %v", err)
}
defer os.RemoveAll(tmpDir)
layerFile, err := rb.getLayerV2(layerID, dockerURL, tmpDir)
if err != nil {
return "", nil, fmt.Errorf("error getting the remote layer: %v", err)
}
defer layerFile.Close()
log.Debug("Generating layer ACI...")
aciPath, aciManifest, err := internal.GenerateACI(layerNumber, layerData, dockerURL, outputDir, layerFile, curPwl, compression)
if err != nil {
return "", nil, fmt.Errorf("error generating ACI: %v", err)
}
return aciPath, aciManifest, nil
}
func getImageID(file *os.File, dockerURL *types.ParsedDockerURL, name string) (string, []string, *types.ParsedDockerURL, error) {
log.Debug("getting image id...")
type tags map[string]string
type apps map[string]tags
_, err := file.Seek(0, 0)
if err != nil {
return "", nil, nil, fmt.Errorf("error seeking file: %v", err)
}
tag := "latest"
if dockerURL != nil {
tag = dockerURL.Tag
}
var imageID string
var ancestry []string
var appName string
reposWalker := func(t *tarball.TarFile) error {
clean := filepath.Clean(t.Name())
if clean == "repositories" {
repob, err := ioutil.ReadAll(t.TarStream)
if err != nil {
return fmt.Errorf("error reading repositories file: %v", err)
}
var repositories apps
if err := json.Unmarshal(repob, &repositories); err != nil {
return fmt.Errorf("error unmarshaling repositories file")
}
if dockerURL == nil {
n := len(repositories)
switch {
case n == 1:
for key, _ := range repositories {
appName = key
}
case n > 1:
var appNames []string
for key, _ := range repositories {
appNames = append(appNames, key)
}
return &common.ErrSeveralImages{
Msg: "several images found",
Images: appNames,
}
default:
return fmt.Errorf("no images found")
}
} else {
appName = dockerURL.ImageName
}
app, ok := repositories[appName]
if !ok {
return fmt.Errorf("app %q not found", appName)
}
_, ok = app[tag]
if !ok {
if len(app) == 1 {
for key, _ := range app {
tag = key
}
} else {
return fmt.Errorf("tag %q not found", tag)
}
}
if dockerURL == nil {
dockerURL = &types.ParsedDockerURL{
IndexURL: "",
Tag: tag,
ImageName: appName,
}
}
imageID = string(app[tag])
}
if clean == "refs/"+tag {
refb, err := ioutil.ReadAll(t.TarStream)
if err != nil {
return fmt.Errorf("error reading ref descriptor for tag %s: %v", tag, err)
}
if dockerURL == nil {
dockerURL = &types.ParsedDockerURL{
IndexURL: "",
Tag: tag,
ImageName: name,
}
}
var ref spec.Descriptor
if err := json.Unmarshal(refb, &ref); err != nil {
return fmt.Errorf("error unmarshaling ref descriptor for tag %s", tag)
}
imageID, ancestry, err = getDataFromManifest(file, ref.Digest)
if err != nil {
return err
}
return io.EOF
}
return nil
}
tr := tar.NewReader(file)
if err := tarball.Walk(*tr, reposWalker); err != nil && err != io.EOF {
return "", nil, nil, err
}
if imageID == "" {
return "", nil, nil, fmt.Errorf("Could not find image")
}
return imageID, ancestry, dockerURL, nil
}
func (rb *RepositoryBackend) buildACIV21(layerIDs []string, dockerURL *types.ParsedDockerURL, outputDir string, tmpBaseDir string, compression common.Compression) ([]string, []*schema.ImageManifest, error) {
layerFiles := make([]*os.File, len(layerIDs))
layerDatas := make([]types.DockerImageData, len(layerIDs))
tmpParentDir, err := ioutil.TempDir(tmpBaseDir, "docker2aci-")
if err != nil {
return nil, nil, err
}
defer os.RemoveAll(tmpParentDir)
copier := progressutil.NewCopyProgressPrinter()
var errChannels []chan error
closers := make([]io.ReadCloser, len(layerIDs))
var wg sync.WaitGroup
for i, layerID := range layerIDs {
wg.Add(1)
errChan := make(chan error, 1)
errChannels = append(errChannels, errChan)
// https://github.com/golang/go/wiki/CommonMistakes
i := i // golang--
layerID := layerID
go func() {
defer wg.Done()
manifest := rb.imageManifests[*dockerURL]
layerIndex, err := getLayerIndex(layerID, manifest)
if err != nil {
errChan <- err
return
}
if len(manifest.History) <= layerIndex {
errChan <- fmt.Errorf("history not found for layer %s", layerID)
return
}
layerDatas[i] = types.DockerImageData{}
if err := json.Unmarshal([]byte(manifest.History[layerIndex].V1Compatibility), &layerDatas[i]); err != nil {
errChan <- fmt.Errorf("error unmarshaling layer data: %v", err)
return
}
tmpDir, err := ioutil.TempDir(tmpParentDir, "")
if err != nil {
errChan <- fmt.Errorf("error creating dir: %v", err)
return
}
layerFiles[i], closers[i], err = rb.getLayerV2(layerID, dockerURL, tmpDir, copier)
if err != nil {
errChan <- fmt.Errorf("error getting the remote layer: %v", err)
return
}
errChan <- nil
}()
}
// Need to wait for all of the readers to be added to the copier (which happens during rb.getLayerV2)
wg.Wait()
err = copier.PrintAndWait(os.Stderr, 500*time.Millisecond, nil)
if err != nil {
return nil, nil, err
}
for _, closer := range closers {
if closer != nil {
closer.Close()
}
}
for _, errChan := range errChannels {
err := <-errChan
if err != nil {
return nil, nil, err
}
}
for _, layerFile := range layerFiles {
err := layerFile.Sync()
if err != nil {
return nil, nil, err
}
}
var aciLayerPaths []string
var aciManifests []*schema.ImageManifest
var curPwl []string
for i := len(layerIDs) - 1; i >= 0; i-- {
log.Debug("Generating layer ACI...")
aciPath, aciManifest, err := internal.GenerateACI(i, layerDatas[i], dockerURL, outputDir, layerFiles[i], curPwl, compression)
if err != nil {
return nil, nil, fmt.Errorf("error generating ACI: %v", err)
}
aciLayerPaths = append(aciLayerPaths, aciPath)
aciManifests = append(aciManifests, aciManifest)
curPwl = aciManifest.PathWhitelist
layerFiles[i].Close()
}
return aciLayerPaths, aciManifests, nil
}
func (rb *RepositoryBackend) buildACIV22(layerIDs []string, dockerURL *types.ParsedDockerURL, outputDir string, tmpBaseDir string, compression common.Compression) ([]string, []*schema.ImageManifest, error) {
layerFiles := make([]*os.File, len(layerIDs))
tmpParentDir, err := ioutil.TempDir(tmpBaseDir, "docker2aci-")
if err != nil {
return nil, nil, err
}
defer os.RemoveAll(tmpParentDir)
copier := progressutil.NewCopyProgressPrinter()
resultChan := make(chan layer, len(layerIDs))
for i, layerID := range layerIDs {
// https://github.com/golang/go/wiki/CommonMistakes
i := i // golang--
layerID := layerID
go func() {
tmpDir, err := ioutil.TempDir(tmpParentDir, "")
if err != nil {
resultChan <- layer{
index: i,
err: fmt.Errorf("error creating dir: %v", err),
}
return
}
layerFile, closer, err := rb.getLayerV2(layerID, dockerURL, tmpDir, copier)
if err != nil {
resultChan <- layer{
index: i,
err: fmt.Errorf("error getting the remote layer: %v", err),
}
return
}
resultChan <- layer{
index: i,
file: layerFile,
closer: closer,
err: nil,
}
}()
}
var errs []error
for i := 0; i < len(layerIDs); i++ {
res := <-resultChan
if res.closer != nil {
defer res.closer.Close()
}
if res.file != nil {
defer res.file.Close()
}
if res.err != nil {
errs = append(errs, res.err)
}
layerFiles[res.index] = res.file
}
if len(errs) > 0 {
return nil, nil, errs[0]
}
err = copier.PrintAndWait(os.Stderr, 500*time.Millisecond, nil)
if err != nil {
return nil, nil, err
}
for _, layerFile := range layerFiles {
err := layerFile.Sync()
if err != nil {
return nil, nil, err
}
}
var aciLayerPaths []string
var aciManifests []*schema.ImageManifest
var curPwl []string
for i := len(layerIDs) - 1; i > 0; i-- {
log.Debug("Generating layer ACI...")
aciPath, aciManifest, err := internal.GenerateACI22LowerLayer(dockerURL, layerIDs[i], outputDir, layerFiles[i], curPwl, compression)
if err != nil {
return nil, nil, fmt.Errorf("error generating ACI: %v", err)
}
aciLayerPaths = append(aciLayerPaths, aciPath)
aciManifests = append(aciManifests, aciManifest)
curPwl = aciManifest.PathWhitelist
}
aciPath, aciManifest, err := internal.GenerateACI22TopLayer(dockerURL, rb.imageConfigs[*dockerURL], layerIDs[0], outputDir, layerFiles[0], curPwl, compression, aciManifests)
if err != nil {
return nil, nil, fmt.Errorf("error generating ACI: %v", err)
}
aciLayerPaths = append(aciLayerPaths, aciPath)
aciManifests = append(aciManifests, aciManifest)
return aciLayerPaths, aciManifests, nil
}
func (rb *RepositoryBackend) buildACIV1(layerIDs []string, dockerURL *types.ParsedDockerURL, outputDir string, tmpBaseDir string, compression common.Compression) ([]string, []*schema.ImageManifest, error) {
layerFiles := make([]*os.File, len(layerIDs))
layerDatas := make([]types.DockerImageData, len(layerIDs))
tmpParentDir, err := ioutil.TempDir(tmpBaseDir, "docker2aci-")
if err != nil {
return nil, nil, err
}
defer os.RemoveAll(tmpParentDir)
var doneChannels []chan error
for i, layerID := range layerIDs {
doneChan := make(chan error)
doneChannels = append(doneChannels, doneChan)
// https://github.com/golang/go/wiki/CommonMistakes
i := i // golang--
layerID := layerID
go func() {
tmpDir, err := ioutil.TempDir(tmpParentDir, "")
if err != nil {
doneChan <- fmt.Errorf("error creating dir: %v", err)
return
}
j, size, err := rb.getJsonV1(layerID, rb.repoData.Endpoints[0], rb.repoData)
if err != nil {
doneChan <- fmt.Errorf("error getting image json: %v", err)
return
}
layerDatas[i] = types.DockerImageData{}
if err := json.Unmarshal(j, &layerDatas[i]); err != nil {
doneChan <- fmt.Errorf("error unmarshaling layer data: %v", err)
return
}
layerFiles[i], err = rb.getLayerV1(layerID, rb.repoData.Endpoints[0], rb.repoData, size, tmpDir)
if err != nil {
doneChan <- fmt.Errorf("error getting the remote layer: %v", err)
return
}
doneChan <- nil
}()
}
for _, doneChan := range doneChannels {
err := <-doneChan
if err != nil {
return nil, nil, err
}
}
var aciLayerPaths []string
var aciManifests []*schema.ImageManifest
var curPwl []string
for i := len(layerIDs) - 1; i >= 0; i-- {
log.Debug("Generating layer ACI...")
aciPath, manifest, err := internal.GenerateACI(i, layerDatas[i], dockerURL, outputDir, layerFiles[i], curPwl, compression)
if err != nil {
return nil, nil, fmt.Errorf("error generating ACI: %v", err)
}
aciLayerPaths = append(aciLayerPaths, aciPath)
aciManifests = append(aciManifests, manifest)
curPwl = manifest.PathWhitelist
layerFiles[i].Close()
}
return aciLayerPaths, aciManifests, nil
}