func (s *router) postCommit(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
if err := httputils.CheckForJSON(r); err != nil {
return err
}
cname := r.Form.Get("container")
pause := httputils.BoolValue(r, "pause")
version := httputils.VersionFromContext(ctx)
if r.FormValue("pause") == "" && version.GreaterThanOrEqualTo("1.13") {
pause = true
}
c, _, _, err := runconfig.DecodeContainerConfig(r.Body)
if err != nil && err != io.EOF { //Do not fail if body is empty.
return err
}
if c == nil {
c = &container.Config{}
}
if !s.daemon.Exists(cname) {
return derr.ErrorCodeNoSuchContainer.WithArgs(cname)
}
newConfig, err := dockerfile.BuildFromConfig(c, r.Form["changes"])
if err != nil {
return err
}
commitCfg := &types.ContainerCommitConfig{
Pause: pause,
Repo: r.Form.Get("repo"),
Tag: r.Form.Get("tag"),
Author: r.Form.Get("author"),
Comment: r.Form.Get("comment"),
Config: newConfig,
MergeConfigs: true,
}
imgID, err := s.daemon.Commit(cname, commitCfg)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusCreated, &types.ContainerCommitResponse{
ID: string(imgID),
})
}
func (c *containerRouter) postContainerCommit(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
cname := r.Form.Get("container")
pause := httputils.BoolValue(r, "pause")
config, _, _, err := runconfig.DecodeContainerConfig(r.Body)
if err != nil && err != io.EOF { //Do not fail if body is empty.
return err
}
if config == nil {
config = &container.Config{}
}
newConfig, err := dockerfile.BuildFromConfig(config, r.Form["changes"])
if err != nil {
return err
}
commitCfg := &types.ContainerCommitConfig{
Pause: pause,
Repo: r.Form.Get("repo"),
Tag: r.Form.Get("tag"),
Author: r.Form.Get("author"),
Comment: r.Form.Get("comment"),
Config: newConfig,
MergeConfigs: true,
}
env, err := c.backend.CmdCommitImage(cname, commitCfg)
if err != nil {
return err
}
return env.WriteJSON(w, http.StatusOK)
}
// 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.ParseNamed(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()
u, err := url.Parse(src)
if err != nil {
return err
}
if u.Scheme == "" {
u.Scheme = "http"
u.Host = src
u.Path = ""
}
outStream.Write(sf.FormatStatus("", "Downloading from %s", u))
resp, err = httputils.Download(u.String())
if err != nil {
return err
}
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
}
// Commit creates a new filesystem image from the current state of a container.
// The image can optionally be tagged into a repository.
func (daemon *Daemon) Commit(name string, c *backend.ContainerCommitConfig) (string, error) {
container, err := daemon.GetContainer(name)
if err != nil {
return "", err
}
// It is not possible to commit a running container on Windows
if runtime.GOOS == "windows" && container.IsRunning() {
return "", fmt.Errorf("Windows does not support commit of a running container")
}
if c.Pause && !container.IsPaused() {
daemon.containerPause(container)
defer daemon.containerUnpause(container)
}
newConfig, err := dockerfile.BuildFromConfig(c.Config, c.Changes)
if err != nil {
return "", err
}
if c.MergeConfigs {
if err := merge(newConfig, container.Config); err != nil {
return "", err
}
}
rwTar, err := daemon.exportContainerRw(container)
if err != nil {
return "", err
}
defer func() {
if rwTar != nil {
rwTar.Close()
}
}()
var history []image.History
rootFS := image.NewRootFS()
osVersion := ""
var osFeatures []string
if container.ImageID != "" {
img, err := daemon.imageStore.Get(container.ImageID)
if err != nil {
return "", err
}
history = img.History
rootFS = img.RootFS
osVersion = img.OSVersion
osFeatures = img.OSFeatures
}
l, err := daemon.layerStore.Register(rwTar, rootFS.ChainID())
if err != nil {
return "", err
}
defer layer.ReleaseAndLog(daemon.layerStore, l)
h := image.History{
Author: c.Author,
Created: time.Now().UTC(),
CreatedBy: strings.Join(container.Config.Cmd, " "),
Comment: c.Comment,
EmptyLayer: true,
}
if diffID := l.DiffID(); layer.DigestSHA256EmptyTar != diffID {
h.EmptyLayer = false
rootFS.Append(diffID)
}
history = append(history, h)
config, err := json.Marshal(&image.Image{
V1Image: image.V1Image{
DockerVersion: dockerversion.Version,
Config: newConfig,
Architecture: runtime.GOARCH,
OS: runtime.GOOS,
Container: container.ID,
ContainerConfig: *container.Config,
Author: c.Author,
Created: h.Created,
},
RootFS: rootFS,
History: history,
OSFeatures: osFeatures,
OSVersion: osVersion,
})
if err != nil {
return "", err
}
id, err := daemon.imageStore.Create(config)
if err != nil {
return "", err
}
if container.ImageID != "" {
if err := daemon.imageStore.SetParent(id, container.ImageID); err != nil {
return "", err
}
}
if c.Repo != "" {
newTag, err := reference.WithName(c.Repo) // todo: should move this to API layer
if err != nil {
return "", err
}
if c.Tag != "" {
if newTag, err = reference.WithTag(newTag, c.Tag); err != nil {
return "", err
}
}
if err := daemon.TagImageWithReference(id, newTag); err != nil {
return "", err
}
}
attributes := map[string]string{
"comment": c.Comment,
}
daemon.LogContainerEventWithAttributes(container, "commit", attributes)
return id.String(), nil
}
// Creates an image from Pull or from Import
func (s *router) postImagesCreate(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
var (
image = r.Form.Get("fromImage")
repo = r.Form.Get("repo")
tag = r.Form.Get("tag")
message = r.Form.Get("message")
)
authEncoded := r.Header.Get("X-Registry-Auth")
authConfig := &types.AuthConfig{}
if authEncoded != "" {
authJSON := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
if err := json.NewDecoder(authJSON).Decode(authConfig); err != nil {
// for a pull it is not an error if no auth was given
// to increase compatibility with the existing api it is defaulting to be empty
authConfig = &types.AuthConfig{}
}
}
var (
err error
output = ioutils.NewWriteFlusher(w)
)
defer output.Close()
w.Header().Set("Content-Type", "application/json")
if image != "" { //pull
// Special case: "pull -a" may send an image name with a
// trailing :. This is ugly, but let's not break API
// compatibility.
image = strings.TrimSuffix(image, ":")
var ref reference.Named
ref, err = reference.ParseNamed(image)
if err == nil {
if tag != "" {
// The "tag" could actually be a digest.
var dgst digest.Digest
dgst, err = digest.ParseDigest(tag)
if err == nil {
ref, err = reference.WithDigest(ref, dgst)
} else {
ref, err = reference.WithTag(ref, tag)
}
}
if err == nil {
metaHeaders := map[string][]string{}
for k, v := range r.Header {
if strings.HasPrefix(k, "X-Meta-") {
metaHeaders[k] = v
}
}
err = s.daemon.PullImage(ref, metaHeaders, authConfig, output)
}
}
} else { //import
var newRef reference.Named
if repo != "" {
var err error
newRef, err = reference.ParseNamed(repo)
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
}
}
}
src := r.Form.Get("fromSrc")
// 'err' MUST NOT be defined within this block, we need any error
// generated from the download to be available to the output
// stream processing below
var newConfig *container.Config
newConfig, err = dockerfile.BuildFromConfig(&container.Config{}, r.Form["changes"])
if err != nil {
return err
}
err = s.daemon.ImportImage(src, newRef, message, r.Body, output, newConfig)
}
if err != nil {
if !output.Flushed() {
return err
}
sf := streamformatter.NewJSONStreamFormatter()
output.Write(sf.FormatError(err))
}
return nil
}
// Creates an image from Pull or from Import
func (s *router) postImagesCreate(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
var (
image = r.Form.Get("fromImage")
repo = r.Form.Get("repo")
tag = r.Form.Get("tag")
message = r.Form.Get("message")
)
authEncoded := r.Header.Get("X-Registry-Auth")
authConfig := &cliconfig.AuthConfig{}
if authEncoded != "" {
authJSON := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
if err := json.NewDecoder(authJSON).Decode(authConfig); err != nil {
// for a pull it is not an error if no auth was given
// to increase compatibility with the existing api it is defaulting to be empty
authConfig = &cliconfig.AuthConfig{}
}
}
var (
err error
output = ioutils.NewWriteFlusher(w)
)
w.Header().Set("Content-Type", "application/json")
if image != "" { //pull
if tag == "" {
image, tag = parsers.ParseRepositoryTag(image)
}
metaHeaders := map[string][]string{}
for k, v := range r.Header {
if strings.HasPrefix(k, "X-Meta-") {
metaHeaders[k] = v
}
}
imagePullConfig := &graph.ImagePullConfig{
MetaHeaders: metaHeaders,
AuthConfig: authConfig,
OutStream: output,
}
err = s.daemon.PullImage(image, tag, imagePullConfig)
} else { //import
if tag == "" {
repo, tag = parsers.ParseRepositoryTag(repo)
}
src := r.Form.Get("fromSrc")
// 'err' MUST NOT be defined within this block, we need any error
// generated from the download to be available to the output
// stream processing below
var newConfig *runconfig.Config
newConfig, err = dockerfile.BuildFromConfig(&runconfig.Config{}, r.Form["changes"])
if err != nil {
return err
}
err = s.daemon.ImportImage(src, repo, tag, message, r.Body, output, newConfig)
}
if err != nil {
if !output.Flushed() {
return err
}
sf := streamformatter.NewJSONStreamFormatter()
output.Write(sf.FormatError(err))
}
return nil
}