Merge pull request #1144 from dotcloud/standalone_registry
* Registry: Standalone registry
This commit is contained in:
Guillaume J. Charmes
commit
a9e04fa4a5
145
docs/registry.go
145
docs/registry.go
@ -12,18 +12,74 @@ import (
|
||||
"net/http"
|
||||
"net/http/cookiejar"
|
||||
"net/url"
|
||||
"regexp"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var ErrAlreadyExists = errors.New("Image already exists")
|
||||
|
||||
func URLScheme() string {
|
||||
u, err := url.Parse(auth.IndexServerAddress())
|
||||
func pingRegistryEndpoint(endpoint string) error {
|
||||
resp, err := http.Get(endpoint + "_ping")
|
||||
if err != nil {
|
||||
return "https"
|
||||
return err
|
||||
}
|
||||
return u.Scheme
|
||||
if resp.Header.Get("X-Docker-Registry-Version") == "" {
|
||||
return errors.New("This does not look like a Registry server (\"X-Docker-Registry-Version\" header not found in the response)")
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func validateRepositoryName(repositoryName string) error {
|
||||
var (
|
||||
namespace string
|
||||
name string
|
||||
)
|
||||
nameParts := strings.SplitN(repositoryName, "/", 2)
|
||||
if len(nameParts) < 2 {
|
||||
namespace = "library"
|
||||
name = nameParts[0]
|
||||
} else {
|
||||
namespace = nameParts[0]
|
||||
name = nameParts[1]
|
||||
}
|
||||
validNamespace := regexp.MustCompile(`^([a-z0-9_]{4,30})$`)
|
||||
if !validNamespace.MatchString(namespace) {
|
||||
return fmt.Errorf("Invalid namespace name (%s), only [a-z0-9_] are allowed, size between 4 and 30", namespace)
|
||||
}
|
||||
validRepo := regexp.MustCompile(`^([a-zA-Z0-9-_.]+)$`)
|
||||
if !validRepo.MatchString(name) {
|
||||
return fmt.Errorf("Invalid repository name (%s), only [a-zA-Z0-9-_.] are allowed", name)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Resolves a repository name to a endpoint + name
|
||||
func ResolveRepositoryName(reposName string) (string, string, error) {
|
||||
nameParts := strings.SplitN(reposName, "/", 2)
|
||||
if !strings.Contains(nameParts[0], ".") {
|
||||
// This is a Docker Index repos (ex: samalba/hipache or ubuntu)
|
||||
err := validateRepositoryName(reposName)
|
||||
return "https://index.docker.io/v1/", reposName, err
|
||||
}
|
||||
if len(nameParts) < 2 {
|
||||
// There is a dot in repos name (and no registry address)
|
||||
// Is it a Registry address without repos name?
|
||||
return "", "", fmt.Errorf("Invalid repository name (ex: \"registry.domain.tld/myrepos\")")
|
||||
}
|
||||
hostname := nameParts[0]
|
||||
reposName = nameParts[1]
|
||||
endpoint := fmt.Sprintf("https://%s/v1/", hostname)
|
||||
if err := pingRegistryEndpoint(endpoint); err != nil {
|
||||
utils.Debugf("Registry %s does not work (%s), falling back to http", endpoint, err)
|
||||
endpoint = fmt.Sprintf("http://%s/v1/", hostname)
|
||||
if err = pingRegistryEndpoint(endpoint); err != nil {
|
||||
//TODO: triggering highland build can be done there without "failing"
|
||||
return "", "", errors.New("Invalid Registry endpoint: " + err.Error())
|
||||
}
|
||||
}
|
||||
err := validateRepositoryName(reposName)
|
||||
return endpoint, reposName, err
|
||||
}
|
||||
|
||||
func doWithCookies(c *http.Client, req *http.Request) (*http.Response, error) {
|
||||
@ -36,7 +92,7 @@ func doWithCookies(c *http.Client, req *http.Request) (*http.Response, error) {
|
||||
// Retrieve the history of a given image from the Registry.
|
||||
// Return a list of the parent's json (requested image included)
|
||||
func (r *Registry) GetRemoteHistory(imgID, registry string, token []string) ([]string, error) {
|
||||
req, err := http.NewRequest("GET", registry+"/images/"+imgID+"/ancestry", nil)
|
||||
req, err := http.NewRequest("GET", registry+"images/"+imgID+"/ancestry", nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
@ -67,7 +123,7 @@ func (r *Registry) GetRemoteHistory(imgID, registry string, token []string) ([]s
|
||||
func (r *Registry) LookupRemoteImage(imgID, registry string, token []string) bool {
|
||||
rt := &http.Transport{Proxy: http.ProxyFromEnvironment}
|
||||
|
||||
req, err := http.NewRequest("GET", registry+"/v1/images/"+imgID+"/json", nil)
|
||||
req, err := http.NewRequest("GET", registry+"images/"+imgID+"/json", nil)
|
||||
if err != nil {
|
||||
return false
|
||||
}
|
||||
@ -79,44 +135,10 @@ func (r *Registry) LookupRemoteImage(imgID, registry string, token []string) boo
|
||||
return res.StatusCode == 200
|
||||
}
|
||||
|
||||
func (r *Registry) getImagesInRepository(repository string, authConfig *auth.AuthConfig) ([]map[string]string, error) {
|
||||
u := auth.IndexServerAddress() + "/repositories/" + repository + "/images"
|
||||
req, err := http.NewRequest("GET", u, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if authConfig != nil && len(authConfig.Username) > 0 {
|
||||
req.SetBasicAuth(authConfig.Username, authConfig.Password)
|
||||
}
|
||||
res, err := r.client.Do(req)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer res.Body.Close()
|
||||
|
||||
// Repository doesn't exist yet
|
||||
if res.StatusCode == 404 {
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
jsonData, err := ioutil.ReadAll(res.Body)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
imageList := []map[string]string{}
|
||||
if err := json.Unmarshal(jsonData, &imageList); err != nil {
|
||||
utils.Debugf("Body: %s (%s)\n", res.Body, u)
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return imageList, nil
|
||||
}
|
||||
|
||||
// Retrieve an image from the Registry.
|
||||
func (r *Registry) GetRemoteImageJSON(imgID, registry string, token []string) ([]byte, int, error) {
|
||||
// Get the JSON
|
||||
req, err := http.NewRequest("GET", registry+"/images/"+imgID+"/json", nil)
|
||||
req, err := http.NewRequest("GET", registry+"images/"+imgID+"/json", nil)
|
||||
if err != nil {
|
||||
return nil, -1, fmt.Errorf("Failed to download json: %s", err)
|
||||
}
|
||||
@ -143,7 +165,7 @@ func (r *Registry) GetRemoteImageJSON(imgID, registry string, token []string) ([
|
||||
}
|
||||
|
||||
func (r *Registry) GetRemoteImageLayer(imgID, registry string, token []string) (io.ReadCloser, error) {
|
||||
req, err := http.NewRequest("GET", registry+"/images/"+imgID+"/layer", nil)
|
||||
req, err := http.NewRequest("GET", registry+"images/"+imgID+"/layer", nil)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Error while getting from the server: %s\n", err)
|
||||
}
|
||||
@ -162,10 +184,7 @@ func (r *Registry) GetRemoteTags(registries []string, repository string, token [
|
||||
repository = "library/" + repository
|
||||
}
|
||||
for _, host := range registries {
|
||||
endpoint := fmt.Sprintf("%s/v1/repositories/%s/tags", host, repository)
|
||||
if !(strings.HasPrefix(endpoint, "http://") || strings.HasPrefix(endpoint, "https://")) {
|
||||
endpoint = fmt.Sprintf("%s://%s", URLScheme(), endpoint)
|
||||
}
|
||||
endpoint := fmt.Sprintf("%srepositories/%s/tags", host, repository)
|
||||
req, err := r.opaqueRequest("GET", endpoint, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
@ -198,8 +217,8 @@ func (r *Registry) GetRemoteTags(registries []string, repository string, token [
|
||||
return nil, fmt.Errorf("Could not reach any registry endpoint")
|
||||
}
|
||||
|
||||
func (r *Registry) GetRepositoryData(remote string) (*RepositoryData, error) {
|
||||
repositoryTarget := auth.IndexServerAddress() + "/repositories/" + remote + "/images"
|
||||
func (r *Registry) GetRepositoryData(indexEp, remote string) (*RepositoryData, error) {
|
||||
repositoryTarget := fmt.Sprintf("%srepositories/%s/images", indexEp, remote)
|
||||
|
||||
req, err := r.opaqueRequest("GET", repositoryTarget, nil)
|
||||
if err != nil {
|
||||
@ -230,8 +249,12 @@ func (r *Registry) GetRepositoryData(remote string) (*RepositoryData, error) {
|
||||
}
|
||||
|
||||
var endpoints []string
|
||||
var urlScheme = indexEp[:strings.Index(indexEp, ":")]
|
||||
if res.Header.Get("X-Docker-Endpoints") != "" {
|
||||
endpoints = res.Header["X-Docker-Endpoints"]
|
||||
// The Registry's URL scheme has to match the Index'
|
||||
for _, ep := range res.Header["X-Docker-Endpoints"] {
|
||||
endpoints = append(endpoints, fmt.Sprintf("%s://%s/v1/", urlScheme, ep))
|
||||
}
|
||||
} else {
|
||||
return nil, fmt.Errorf("Index response didn't contain any endpoints")
|
||||
}
|
||||
@ -260,9 +283,8 @@ func (r *Registry) GetRepositoryData(remote string) (*RepositoryData, error) {
|
||||
|
||||
// Push a local image to the registry
|
||||
func (r *Registry) PushImageJSONRegistry(imgData *ImgData, jsonRaw []byte, registry string, token []string) error {
|
||||
registry = registry + "/v1"
|
||||
// FIXME: try json with UTF8
|
||||
req, err := http.NewRequest("PUT", registry+"/images/"+imgData.ID+"/json", strings.NewReader(string(jsonRaw)))
|
||||
req, err := http.NewRequest("PUT", registry+"images/"+imgData.ID+"/json", strings.NewReader(string(jsonRaw)))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
@ -296,8 +318,7 @@ func (r *Registry) PushImageJSONRegistry(imgData *ImgData, jsonRaw []byte, regis
|
||||
}
|
||||
|
||||
func (r *Registry) PushImageLayerRegistry(imgID string, layer io.Reader, registry string, token []string) error {
|
||||
registry = registry + "/v1"
|
||||
req, err := http.NewRequest("PUT", registry+"/images/"+imgID+"/layer", layer)
|
||||
req, err := http.NewRequest("PUT", registry+"images/"+imgID+"/layer", layer)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
@ -334,9 +355,8 @@ func (r *Registry) opaqueRequest(method, urlStr string, body io.Reader) (*http.R
|
||||
func (r *Registry) PushRegistryTag(remote, revision, tag, registry string, token []string) error {
|
||||
// "jsonify" the string
|
||||
revision = "\"" + revision + "\""
|
||||
registry = registry + "/v1"
|
||||
|
||||
req, err := r.opaqueRequest("PUT", registry+"/repositories/"+remote+"/tags/"+tag, strings.NewReader(revision))
|
||||
req, err := r.opaqueRequest("PUT", registry+"repositories/"+remote+"/tags/"+tag, strings.NewReader(revision))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
@ -354,7 +374,7 @@ func (r *Registry) PushRegistryTag(remote, revision, tag, registry string, token
|
||||
return nil
|
||||
}
|
||||
|
||||
func (r *Registry) PushImageJSONIndex(remote string, imgList []*ImgData, validate bool, regs []string) (*RepositoryData, error) {
|
||||
func (r *Registry) PushImageJSONIndex(indexEp, remote string, imgList []*ImgData, validate bool, regs []string) (*RepositoryData, error) {
|
||||
imgListJSON, err := json.Marshal(imgList)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
@ -364,9 +384,10 @@ func (r *Registry) PushImageJSONIndex(remote string, imgList []*ImgData, validat
|
||||
suffix = "images"
|
||||
}
|
||||
|
||||
u := fmt.Sprintf("%srepositories/%s/%s", indexEp, remote, suffix)
|
||||
utils.Debugf("PUT %s", u)
|
||||
utils.Debugf("Image list pushed to index:\n%s\n", imgListJSON)
|
||||
|
||||
req, err := r.opaqueRequest("PUT", auth.IndexServerAddress()+"/repositories/"+remote+"/"+suffix, bytes.NewReader(imgListJSON))
|
||||
req, err := r.opaqueRequest("PUT", u, bytes.NewReader(imgListJSON))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
@ -404,6 +425,7 @@ func (r *Registry) PushImageJSONIndex(remote string, imgList []*ImgData, validat
|
||||
}
|
||||
|
||||
var tokens, endpoints []string
|
||||
var urlScheme = indexEp[:strings.Index(indexEp, ":")]
|
||||
if !validate {
|
||||
if res.StatusCode != 200 && res.StatusCode != 201 {
|
||||
errBody, err := ioutil.ReadAll(res.Body)
|
||||
@ -420,7 +442,10 @@ func (r *Registry) PushImageJSONIndex(remote string, imgList []*ImgData, validat
|
||||
}
|
||||
|
||||
if res.Header.Get("X-Docker-Endpoints") != "" {
|
||||
endpoints = res.Header["X-Docker-Endpoints"]
|
||||
// The Registry's URL scheme has to match the Index'
|
||||
for _, ep := range res.Header["X-Docker-Endpoints"] {
|
||||
endpoints = append(endpoints, fmt.Sprintf("%s://%s/v1/", urlScheme, ep))
|
||||
}
|
||||
} else {
|
||||
return nil, fmt.Errorf("Index response didn't contain any endpoints")
|
||||
}
|
||||
@ -442,7 +467,7 @@ func (r *Registry) PushImageJSONIndex(remote string, imgList []*ImgData, validat
|
||||
}
|
||||
|
||||
func (r *Registry) SearchRepositories(term string) (*SearchResults, error) {
|
||||
u := auth.IndexServerAddress() + "/search?q=" + url.QueryEscape(term)
|
||||
u := auth.IndexServerAddress() + "search?q=" + url.QueryEscape(term)
|
||||
req, err := http.NewRequest("GET", u, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
|
||||
Loading…
Reference in New Issue
Block a user