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moby--moby/api/server/router/image/image_routes.go
Vincent Demeester 820b809e70
Add reference filter and deprecated filter param…
… for `docker images`.

This deprecates the `filter` param for the `/images` endpoint and make a
new filter called `reference` to replace it. It does change the CLI
side (still possible to do `docker images busybox:musl`) but changes the
cli code to use the filter instead (so that `docker images --filter
busybox:musl` and `docker images busybox:musl` act the same).

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
2016-11-11 15:34:01 +01:00

348 lines
9.6 KiB
Go

package image
import (
"encoding/base64"
"encoding/json"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"github.com/docker/docker/api/server/httputils"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/backend"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/filters"
"github.com/docker/docker/api/types/versions"
"github.com/docker/docker/pkg/ioutils"
"github.com/docker/docker/pkg/streamformatter"
"github.com/docker/docker/registry"
"golang.org/x/net/context"
)
func (s *imageRouter) 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") == "" && versions.GreaterThanOrEqualTo(version, "1.13") {
pause = true
}
c, _, _, err := s.decoder.DecodeConfig(r.Body)
if err != nil && err != io.EOF { //Do not fail if body is empty.
return err
}
if c == nil {
c = &container.Config{}
}
commitCfg := &backend.ContainerCommitConfig{
ContainerCommitConfig: 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: c,
MergeConfigs: true,
},
Changes: r.Form["changes"],
}
imgID, err := s.backend.Commit(cname, commitCfg)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusCreated, &types.IDResponse{
ID: string(imgID),
})
}
// Creates an image from Pull or from Import
func (s *imageRouter) 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")
err error
output = ioutils.NewWriteFlusher(w)
)
defer output.Close()
w.Header().Set("Content-Type", "application/json")
if image != "" { //pull
metaHeaders := map[string][]string{}
for k, v := range r.Header {
if strings.HasPrefix(k, "X-Meta-") {
metaHeaders[k] = v
}
}
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{}
}
}
err = s.backend.PullImage(ctx, image, tag, metaHeaders, authConfig, output)
} else { //import
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
err = s.backend.ImportImage(src, repo, tag, message, r.Body, output, r.Form["changes"])
}
if err != nil {
if !output.Flushed() {
return err
}
sf := streamformatter.NewJSONStreamFormatter()
output.Write(sf.FormatError(err))
}
return nil
}
func (s *imageRouter) postImagesPush(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
metaHeaders := map[string][]string{}
for k, v := range r.Header {
if strings.HasPrefix(k, "X-Meta-") {
metaHeaders[k] = v
}
}
if err := httputils.ParseForm(r); err != nil {
return err
}
authConfig := &types.AuthConfig{}
authEncoded := r.Header.Get("X-Registry-Auth")
if authEncoded != "" {
// the new format is to handle the authConfig as a header
authJSON := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
if err := json.NewDecoder(authJSON).Decode(authConfig); err != nil {
// to increase compatibility to existing api it is defaulting to be empty
authConfig = &types.AuthConfig{}
}
} else {
// the old format is supported for compatibility if there was no authConfig header
if err := json.NewDecoder(r.Body).Decode(authConfig); err != nil {
return fmt.Errorf("Bad parameters and missing X-Registry-Auth: %v", err)
}
}
image := vars["name"]
tag := r.Form.Get("tag")
output := ioutils.NewWriteFlusher(w)
defer output.Close()
w.Header().Set("Content-Type", "application/json")
if err := s.backend.PushImage(ctx, image, tag, metaHeaders, authConfig, output); err != nil {
if !output.Flushed() {
return err
}
sf := streamformatter.NewJSONStreamFormatter()
output.Write(sf.FormatError(err))
}
return nil
}
func (s *imageRouter) getImagesGet(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
w.Header().Set("Content-Type", "application/x-tar")
output := ioutils.NewWriteFlusher(w)
defer output.Close()
var names []string
if name, ok := vars["name"]; ok {
names = []string{name}
} else {
names = r.Form["names"]
}
if err := s.backend.ExportImage(names, output); err != nil {
if !output.Flushed() {
return err
}
sf := streamformatter.NewJSONStreamFormatter()
output.Write(sf.FormatError(err))
}
return nil
}
func (s *imageRouter) postImagesLoad(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
quiet := httputils.BoolValueOrDefault(r, "quiet", true)
w.Header().Set("Content-Type", "application/json")
output := ioutils.NewWriteFlusher(w)
defer output.Close()
if err := s.backend.LoadImage(r.Body, output, quiet); err != nil {
output.Write(streamformatter.NewJSONStreamFormatter().FormatError(err))
}
return nil
}
func (s *imageRouter) deleteImages(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
name := vars["name"]
if strings.TrimSpace(name) == "" {
return fmt.Errorf("image name cannot be blank")
}
force := httputils.BoolValue(r, "force")
prune := !httputils.BoolValue(r, "noprune")
list, err := s.backend.ImageDelete(name, force, prune)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, list)
}
func (s *imageRouter) getImagesByName(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
imageInspect, err := s.backend.LookupImage(vars["name"])
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, imageInspect)
}
func (s *imageRouter) getImagesJSON(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
imageFilters, err := filters.FromParam(r.Form.Get("filters"))
if err != nil {
return err
}
version := httputils.VersionFromContext(ctx)
filterParam := r.Form.Get("filter")
if versions.LessThan(version, "1.28") && filterParam != "" {
imageFilters.Add("reference", filterParam)
}
images, err := s.backend.Images(imageFilters, httputils.BoolValue(r, "all"), false)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, images)
}
func (s *imageRouter) getImagesHistory(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
name := vars["name"]
history, err := s.backend.ImageHistory(name)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, history)
}
func (s *imageRouter) postImagesTag(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 := s.backend.TagImage(vars["name"], r.Form.Get("repo"), r.Form.Get("tag")); err != nil {
return err
}
w.WriteHeader(http.StatusCreated)
return nil
}
func (s *imageRouter) getImagesSearch(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
if err := httputils.ParseForm(r); err != nil {
return err
}
var (
config *types.AuthConfig
authEncoded = r.Header.Get("X-Registry-Auth")
headers = map[string][]string{}
)
if authEncoded != "" {
authJSON := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
if err := json.NewDecoder(authJSON).Decode(&config); err != nil {
// for a search it is not an error if no auth was given
// to increase compatibility with the existing api it is defaulting to be empty
config = &types.AuthConfig{}
}
}
for k, v := range r.Header {
if strings.HasPrefix(k, "X-Meta-") {
headers[k] = v
}
}
limit := registry.DefaultSearchLimit
if r.Form.Get("limit") != "" {
limitValue, err := strconv.Atoi(r.Form.Get("limit"))
if err != nil {
return err
}
limit = limitValue
}
query, err := s.backend.SearchRegistryForImages(ctx, r.Form.Get("filters"), r.Form.Get("term"), limit, config, headers)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, query.Results)
}
func (s *imageRouter) postImagesPrune(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
}
var cfg types.ImagesPruneConfig
if err := json.NewDecoder(r.Body).Decode(&cfg); err != nil {
return err
}
pruneReport, err := s.backend.ImagesPrune(&cfg)
if err != nil {
return err
}
return httputils.WriteJSON(w, http.StatusOK, pruneReport)
}