package daemon import ( "encoding/json" "io" "net/http" "net/url" "runtime" "strings" "time" "github.com/docker/distribution/reference" "github.com/docker/docker/api/types/container" "github.com/docker/docker/builder/dockerfile" "github.com/docker/docker/dockerversion" "github.com/docker/docker/image" "github.com/docker/docker/layer" "github.com/docker/docker/pkg/archive" "github.com/docker/docker/pkg/httputils" "github.com/docker/docker/pkg/progress" "github.com/docker/docker/pkg/streamformatter" "github.com/pkg/errors" ) // ImportImage imports an image, getting the archived layer data either from // inConfig (if src is "-"), or from a URI specified in src. Progress output is // written to outStream. Repository and tag names can optionally be given in // the repo and tag arguments, respectively. func (daemon *Daemon) ImportImage(src string, repository, tag string, msg string, inConfig io.ReadCloser, outStream io.Writer, changes []string) error { var ( sf = streamformatter.NewJSONStreamFormatter() rc io.ReadCloser resp *http.Response newRef reference.Named ) if repository != "" { var err error newRef, err = reference.ParseNormalizedNamed(repository) if err != nil { return err } if _, isCanonical := newRef.(reference.Canonical); isCanonical { return errors.New("cannot import digest reference") } if tag != "" { newRef, err = reference.WithTag(newRef, tag) if err != nil { return err } } } config, err := dockerfile.BuildFromConfig(&container.Config{}, changes) if err != nil { return err } if src == "-" { rc = inConfig } else { inConfig.Close() if len(strings.Split(src, "://")) == 1 { src = "http://" + src } u, err := url.Parse(src) if err != nil { return err } resp, err = httputils.Download(u.String()) if err != nil { return err } outStream.Write(sf.FormatStatus("", "Downloading from %s", u)) progressOutput := sf.NewProgressOutput(outStream, true) rc = progress.NewProgressReader(resp.Body, progressOutput, resp.ContentLength, "", "Importing") } defer rc.Close() if len(msg) == 0 { msg = "Imported from " + src } inflatedLayerData, err := archive.DecompressStream(rc) if err != nil { return err } // TODO: support windows baselayer? l, err := daemon.layerStore.Register(inflatedLayerData, "") if err != nil { return err } defer layer.ReleaseAndLog(daemon.layerStore, l) created := time.Now().UTC() imgConfig, err := json.Marshal(&image.Image{ V1Image: image.V1Image{ DockerVersion: dockerversion.Version, Config: config, Architecture: runtime.GOARCH, OS: runtime.GOOS, Created: created, Comment: msg, }, RootFS: &image.RootFS{ Type: "layers", DiffIDs: []layer.DiffID{l.DiffID()}, }, History: []image.History{{ Created: created, Comment: msg, }}, }) if err != nil { return err } id, err := daemon.imageStore.Create(imgConfig) if err != nil { return err } // FIXME: connect with commit code and call refstore directly if newRef != nil { if err := daemon.TagImageWithReference(id, newRef); err != nil { return err } } daemon.LogImageEvent(id.String(), id.String(), "import") outStream.Write(sf.FormatStatus("", id.String())) return nil }