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