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 (c *converter) convert() ([]string, error) {
c.config.Debug.Println("Getting image info...")
ancestry, parsedDockerURL, err := c.backend.GetImageInfo(c.dockerURL)
if err != nil {
return nil, err
}
layersOutputDir := c.config.OutputDir
if c.config.Squash {
layersOutputDir, err = ioutil.TempDir(c.config.TmpDir, "docker2aci-")
if err != nil {
return nil, fmt.Errorf("error creating dir: %v", err)
}
defer os.RemoveAll(layersOutputDir)
}
conversionStore := newConversionStore()
// only compress individual layers if we're not squashing
layerCompression := c.config.Compression
if c.config.Squash {
layerCompression = common.NoCompression
}
aciLayerPaths, aciManifests, err := c.backend.BuildACI(ancestry, parsedDockerURL, layersOutputDir, c.config.TmpDir, layerCompression)
if err != nil {
return nil, err
}
var images acirenderer.Images
for i, aciLayerPath := range aciLayerPaths {
key, err := conversionStore.WriteACI(aciLayerPath)
if err != nil {
return nil, fmt.Errorf("error inserting in the conversion store: %v", err)
}
images = append(images, acirenderer.Image{Im: aciManifests[i], Key: key, Level: uint16(len(aciLayerPaths) - 1 - i)})
}
// acirenderer expects images in order from upper to base layer
images = util.ReverseImages(images)
if c.config.Squash {
squashedImagePath, err := squashLayers(images, conversionStore, *parsedDockerURL, c.config.OutputDir, c.config.Compression, c.config.Debug)
if err != nil {
return nil, fmt.Errorf("error squashing image: %v", err)
}
aciLayerPaths = []string{squashedImagePath}
}
return aciLayerPaths, nil
}