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Support for custom authentication URL in proxying registry

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Signed-off-by: Serge Dubrouski <sergeyfd@gmail.com>
This commit is contained in:
Serge Dubrouski 2016-09-01 17:46:51 -06:00
parent cd27f179f2
commit 81c5870c86
2 changed files with 34 additions and 6 deletions
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38
registry/proxy/proxyauth.go
View file

@ -3,11 +3,12 @@ package proxy
import (
"net/http"
"net/url"
"strings"
"github.com/docker/distribution/context"
"github.com/docker/distribution/registry/client/auth"
)
const tokenURL = "https://auth.docker.io/token"
const challengeHeader = "Docker-Distribution-Api-Version"
type userpass struct {
@ -33,16 +34,43 @@ func (c credentials) SetRefreshToken(u *url.URL, service, token string) {
}
// configureAuth stores credentials for challenge responses
func configureAuth(username, password string) (auth.CredentialStore, error) {
creds := map[string]userpass{
tokenURL: {
func configureAuth(username, password, remoteURL string) (auth.CredentialStore, error) {
creds := map[string]userpass{}
authURLs, err := getAuthURLs(remoteURL)
if err != nil {
return nil, err
}
for _, url := range authURLs {
context.GetLogger(context.Background()).Infof("Discovered token authentication URL: %s", url)
creds[url] = userpass{
username: username,
password: password,
},
}
}
return credentials{creds: creds}, nil
}
func getAuthURLs(remoteURL string) ([]string, error) {
authURLs := []string{}
resp, err := http.Get(remoteURL + "/v2/")
if err != nil {
return nil, err
}
defer resp.Body.Close()
for _, c := range auth.ResponseChallenges(resp) {
if strings.EqualFold(c.Scheme, "bearer") {
authURLs = append(authURLs, c.Parameters["realm"])
}
}
return authURLs, nil
}
func ping(manager auth.ChallengeManager, endpoint, versionHeader string) error {
resp, err := http.Get(endpoint)
if err != nil {

2
registry/proxy/proxyregistry.go
View file

@ -91,7 +91,7 @@ func NewRegistryPullThroughCache(ctx context.Context, registry distribution.Name
return nil, err
}
cs, err := configureAuth(config.Username, config.Password)
cs, err := configureAuth(config.Username, config.Password, config.RemoteURL)
if err != nil {
return nil, err
}