The original Docker Registry server (v1) did not provide any support for authentication or authorization. Access control had to be performed externally, typically by deploying Nginx in the reverse proxy mode with Basic or other type of authentication. While performing simple user authentication is pretty straightforward, performing more fine-grained access control was cumbersome.
Docker Registry 2.0 introduced a new, token-based authentication and authorization protocol, but the server to generate them was not released. Thus, most guides found on the internet still describe a set up with a reverse proxy performing access control.
This server fills the gap and implements the protocol described here.
Supported authentication methods:
- Static list of users
- Google Sign-In (incl. Google for Work / GApps for domain) (documented here)
- LDAP bind
- MongoDB user collection
Supported authorization methods:
- Static ACL
- MongoDB-backed ACL
A public Docker image is available on Docker Hub: cesanta/docker_auth:stable.
The binary takes a single argument - path to the config file.
If no arguments are given, the Dockerfile defaults to /config/auth_config.yml.
Example command line:
$ docker run \
--rm -it --name docker_auth -p 5001:5001 \
-v /path/to/config_dir:/config:ro \
-v /var/log/docker_auth:/logs \
cesanta/docker_auth:stable /config/auth_config.yml
See the example config files to get an idea of what is possible.
Run with increased verbosity:
docker run ... cesanta/docker_auth:stable --v=2 --alsologtostderr /config/auth_config.yml
Bug reports, feature requests and pull requests (for small fixes) are welcome. If you require larger changes, please file an issue. We cannot guarantee response but will do our best to address them.
This software is licensed under the Apache 2 license, quoted below.
Copyright 2018 Kakao Corp. http://www.kakaocorp.com
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this project except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.