registry/docs/proxy/proxyauth.go
Richard Scothern d1cb12fa3d Add pull through cache functionality to the Registry which can be configured
with a new `proxy` section in the configuration file.

Create a new registry type which delegates storage to a proxyBlobStore
and proxyManifestStore.  These stores will pull through data if not present
locally.  proxyBlobStore takes care not to write duplicate data to disk.

Add a scheduler to cleanup expired content. The scheduler runs as a background
goroutine.  When a blob or manifest is pulled through from the remote registry,
an entry is added to the scheduler with a TTL.  When the TTL expires the
scheduler calls a pre-specified function to remove the fetched resource.

Add token authentication to the registry middleware.  Get a token at startup
and preload the credential store with the username and password supplied in the
config file.

Allow resumable digest functionality to be disabled at runtime and disable
it when the registry is a pull through cache.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-08-04 16:09:55 -07:00

54 lines
1 KiB
Go

package proxy
import (
"net/http"
"net/url"
"github.com/docker/distribution/registry/client/auth"
)
const tokenURL = "https://auth.docker.io/token"
type userpass struct {
username string
password string
}
type credentials struct {
creds map[string]userpass
}
func (c credentials) Basic(u *url.URL) (string, string) {
up := c.creds[u.String()]
return up.username, up.password
}
// ConfigureAuth authorizes with the upstream registry
func ConfigureAuth(remoteURL, username, password string, cm auth.ChallengeManager) (auth.CredentialStore, error) {
if err := ping(cm, remoteURL+"/v2/", "Docker-Distribution-Api-Version"); err != nil {
return nil, err
}
creds := map[string]userpass{
tokenURL: {
username: username,
password: password,
},
}
return credentials{creds: creds}, nil
}
func ping(manager auth.ChallengeManager, endpoint, versionHeader string) error {
resp, err := http.Get(endpoint)
if err != nil {
return err
}
defer resp.Body.Close()
if err := manager.AddResponse(resp); err != nil {
return err
}
return nil
}