This project aims to provide a simple and complete user interface for your private docker registry. You can customize the interface with various options. The major option is `SINGLE_REGISTRY` which allows you to disable the dynamic selection of docker registeries (same behavior as the old **static** tag).
You may need the [migration guide from 1.x to 2.x](https://github.com/Joxit/docker-registry-ui/wiki/Migrating-from-1.x-to-2.x) or [the 1.x readme](https://github.com/Joxit/docker-registry-ui/blob/8fe3adf12540d1316cb57628ebe86a392a703d90/README.md)
This web user interface uses [Riot](https://github.com/Riot/riot) the react-like user interface micro-library and [riot-mui](https://github.com/kysonic/riot-mui) components.
- Multi arch support in history page (see [#130](https://github.com/Joxit/docker-registry-ui/issues/130) and [#134](https://github.com/Joxit/docker-registry-ui/pull/134))
- Filter images and tags with a search bar. You can select the search bar with the shortcut `CRTL` + `F` or `F3`. When the search bar is already focused, the shortcut will fallback to the default behavior (see [#213](https://github.com/Joxit/docker-registry-ui/issues/213)).
-**Forward** custom header to your backend registry via environment variable and file via `NGINX_PROXY_PASS_HEADER_*` (see [#206](https://github.com/Joxit/docker-registry-ui/pull/206)).
- Run the container with user nginx instead of root via `--user nginx` and listend on custom port via `NGINX_LISTEN_PORT` (see [#224](https://github.com/Joxit/docker-registry-ui/issues/224)).
- Show number of tags per images on catalog page. This will produce + nb images requests, not recommended on large registries via `SHOW_CATALOG_NB_TAGS` (default: `false`) (see [#161](https://github.com/Joxit/docker-registry-ui/issues/161) and [#239](https://github.com/Joxit/docker-registry-ui/pull/239)).
- Expose custom labels in history page, custom labels will be processed like maintainer label via `HISTORY_CUSTOM_LABELS` (see [#160](https://github.com/Joxit/docker-registry-ui/issues/160) and [#240](https://github.com/Joxit/docker-registry-ui/pull/240)).
- Why, when I delete all tags of an image, the image is still in the UI ?
- This is a limitation of docker registry, the garbage collector don't remove empty images. If you want to delete dangling images, you will need to delete the folder in your registry data. (see [#77](https://github.com/Joxit/docker-registry-ui/issues/77))
- Yes, but it supports only basic auth. It's a simple standalone frontend, it will use your browser window for authentication.
- Can I use the UI and docker client with an insecure registry (registry url without https) ?
- Yes you can, you must first configure your docker client. (see [#76](https://github.com/Joxit/docker-registry-ui/issues/76))
- What does Mixed Content error mean ?
- This means you are using a UI with HTTPS and your registry is using HTTP (unsecured). When you are on a HTTPS site, you can't get HTTP content. Upgrade you registry with a HTTPS connection.
- Why the default nginx `Host` is set to `$http_host` ?
- This fixes the issue [#88](https://github.com/Joxit/docker-registry-ui/issues/88). More about this in [#113](https://github.com/Joxit/docker-registry-ui/issues/113).
- This is caused by a bug in docker registry, I suggest to have your UI on the same domain than your registry and use `NGINX_PROXY_PASS_URL` e.g. registry.example.com/ui/. (see [#104](https://github.com/Joxit/docker-registry-ui/issues/104), [#204](https://github.com/Joxit/docker-registry-ui/issues/204), [#207](https://github.com/Joxit/docker-registry-ui/issues/207), [#214](https://github.com/Joxit/docker-registry-ui/issues/214)).
- Yes, check out the example [here](https://github.com/Joxit/docker-registry-ui/tree/main/examples/electron). (see [#129](https://github.com/Joxit/docker-registry-ui/pull/129))
- I deleted images through the UI, but they are still present on the server. How can I delete them?
- When you delete an image with the UI, only the reference is deleted and not the content. To remove dangling images, you need to run the garbage collector of the registry with the command `registry garbage-collect config.yml` or `docker exec registry registry garbage-collect config.yml`. (see [#77](https://github.com/Joxit/docker-registry-ui/issues/77) [#147](https://github.com/Joxit/docker-registry-ui/issues/147))
- Why when I delete one tag, all tags with the same SHA are deleted ?
- This a docker registry API limitation, there is only one way to [delete images with tag](https://docs.docker.com/registry/spec/api/#deleting-an-image), it's by its `name` and its `manifest` (it's a sha of the content). So when you delete a tag, this will delete all tags of this image with the same SHA/manifest.
-`REGISTRY_URL`: The default url of your docker registry. You may need CORS configuration on your registry. This is usually the domain name or IP of your registry reachable by your computer (e.g `http://registry.example.com`). (default: derived from the hostname of your UI).
-`NGINX_PROXY_PASS_URL`: Update the default Nginx configuration and set the **proxy_pass** to your backend docker registry (this avoid CORS configuration). This is usually the name of your registry container in the form `http://registry:5000`.
-`NGINX_PROXY_HEADER_*`: Update the default Nginx configuration and **set custom headers** for your backend docker registry. Only when `NGINX_PROXY_PASS_URL` is used.
-`NGINX_PROXY_PASS_HEADER_*`: Update the default Nginx configuration and **forward custom headers** to your backend docker registry. Only when `NGINX_PROXY_PASS_URL` is used.
-`DEFAULT_REGISTRIES`: List of comma separated registry URLs (e.g `http://registry.example.com,http://registry:5000`), available only when `SINGLE_REGISTRY=false`. (default: ` `).
-`READ_ONLY_REGISTRIES`: Desactivate dialog for remove and add new registries, available only when `SINGLE_REGISTRY=false`. (default: `false`).
-`SHOW_CATALOG_NB_TAGS`: Show number of tags per images on catalog page. This will produce + nb images requests, not recommended on large registries. (default: `false`).
-`USE_CONTROL_CACHE_HEADER`: Use `Control-Cache` header and set to `no-store, no-cache`. This will avoid some issues on multi-arch images (see [#260](https://github.com/Joxit/docker-registry-ui/issues/260)). This option requires registry configuration: `Access-Control-Allow-Headers` with `Cache-Control`. (default: `false`).
There are some examples with [docker-compose](https://docs.docker.com/compose/) and docker-registry-ui as proxy [here](https://github.com/Joxit/docker-registry-ui/tree/main/examples/ui-as-proxy/) or docker-registry-ui as standalone [here](https://github.com/Joxit/docker-registry-ui/tree/main/examples/ui-as-standalone/).
If your docker registry need credentials, you will need to send these HEADERS (you must add the protocol `http`/`https` and the port when not default `80`/`443`):
An alternative for CORS issues is a plugin on your browser, more info [here](https://github.com/Joxit/docker-registry-ui/issues/25#issuecomment-621104846) (thank you [xmontero](https://github.com/xmontero)).
- [Use docker-registry-ui as a proxy (use REGISTRY_URL)](https://github.com/Joxit/docker-registry-ui/tree/main/examples/ui-as-proxy)
- [Use docker-registry-ui as standalone (use URL)](https://github.com/Joxit/docker-registry-ui/tree/main/examples/ui-as-standalone)
- [Use docker-registry-ui with traefik](https://github.com/Joxit/docker-registry-ui/tree/main/examples/traefik)
- [Use docker-registry-ui with docker registry and Amazon s3](https://github.com/Joxit/docker-registry-ui/tree/main/examples/issue-75) ([#75](https://github.com/Joxit/docker-registry-ui/issues/75))
- [FIX revproxy to registry does not work when published under non-root url](https://github.com/Joxit/docker-registry-ui/tree/main/examples/issue-73) ([#73](https://github.com/Joxit/docker-registry-ui/issues/73))
- [Use docker-registry-ui with HTTPS](https://github.com/Joxit/docker-registry-ui/tree/main/examples/issue-20) ([#20](https://github.com/Joxit/docker-registry-ui/issues/20))
- [Unable to push image when docker-registry-ui is used as a proxy on non 80 port](https://github.com/Joxit/docker-registry-ui/tree/main/examples/issue-88) ([#88](https://github.com/Joxit/docker-registry-ui/issues/88))
- [Add custom headers bases on environment variable and/or file when the ui is used as proxy](https://github.com/Joxit/docker-registry-ui/tree/main/examples/proxy-headers) ([#89](https://github.com/Joxit/docker-registry-ui/pull/89))
- [UI showing same sha256 content digest for all tags + Delete is not working](https://github.com/Joxit/docker-registry-ui/tree/main/examples/issue-116) ([#116](https://github.com/Joxit/docker-registry-ui/issues/116))
- [Use docker-registry-ui as proxy with read-only right](https://github.com/Joxit/docker-registry-ui/tree/main/examples/read-only-auth) ([#47](https://github.com/Joxit/docker-registry-ui/issues/47))