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package images // import "github.com/docker/docker/daemon/images"
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/builder/remotecontext"
"github.com/docker/docker/dockerversion"
"github.com/docker/docker/errdefs"
"github.com/docker/docker/image"
"github.com/docker/docker/layer"
"github.com/docker/docker/pkg/archive"
"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 (i *ImageService) ImportImage(src string, repository, os string, tag string, msg string, inConfig io.ReadCloser, outStream io.Writer, changes []string) error {
var (
rc io.ReadCloser
resp *http.Response
newRef reference.Named
)
// Default the operating system if not supplied.
if os == "" {
os = runtime.GOOS
}
if repository != "" {
var err error
newRef, err = reference.ParseNormalizedNamed(repository)
if err != nil {
return errdefs.InvalidParameter(err)
}
if _, isCanonical := newRef.(reference.Canonical); isCanonical {
return errdefs.InvalidParameter(errors.New("cannot import digest reference"))
}
if tag != "" {
newRef, err = reference.WithTag(newRef, tag)
if err != nil {
return errdefs.InvalidParameter(err)
}
}
}
config, err := dockerfile.BuildFromConfig(&container.Config{}, changes, os)
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 errdefs.InvalidParameter(err)
}
resp, err = remotecontext.GetWithStatusError(u.String())
if err != nil {
return err
}
outStream.Write(streamformatter.FormatStatus("", "Downloading from %s", u))
progressOutput := streamformatter.NewJSONProgressOutput(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
}
l, err := i.layerStores[os].Register(inflatedLayerData, "")
if err != nil {
return err
}
defer layer.ReleaseAndLog(i.layerStores[os], l)
created := time.Now().UTC()
imgConfig, err := json.Marshal(&image.Image{
V1Image: image.V1Image{
DockerVersion: dockerversion.Version,
Config: config,
Architecture: runtime.GOARCH,
OS: os,
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 := i.imageStore.Create(imgConfig)
if err != nil {
return err
}
// FIXME: connect with commit code and call refstore directly
if newRef != nil {
if err := i.TagImageWithReference(id, newRef); err != nil {
return err
}
}
i.LogImageEvent(id.String(), id.String(), "import")
outStream.Write(streamformatter.FormatStatus("", id.String()))
return nil
}
|
