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# docker-overleaf-ldap
[](https://git.stuvus.uni-stuttgart.de/ref-it/docker-overleaf-ldap/-/pipelines?ref=main)
This repository provides an OCI image for
[Overleaf](https://github.com/overleaf/overleaf) bundled with
[ldap-overleaf-sl](https://github.com/smhaller/ldap-overleaf-sl)
to support LDAP authentication.
One can use [Docker](https://www.docker.com/) in order to build the image,
as follows.
```sh
docker build -t docker-overleaf-ldap .
```
## Environment variables
Two environment variables are used at runtime to configure the bind user:
- `LDAP_BIND_USER`: Bind-DN, i.e., DN of the bind user.
- `LDAP_BIND_PW`: Password of the bind user.
## Build arguments
The following arguments can be passed via `--build-args`.
| Argument | Default | Description |
| ----------------- | --------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `BASE` | `docker.io/sharelatex/sharelatex` | Can be set to any Overleaf image tag. See [here](https://hub.docker.com/r/sharelatex/sharelatex/tags?page=1&ordering=last_updated) for a list of tags. |
| `LDAP_PLUGIN_URL` | `https://codeload.github.com/smhaller/ldap-overleaf-sl/tar.gz/master` | URL to download ldap-overleaf-sl from. |
## GitLab CI
The `environment` file is used to specify some environment variables for the GitLab CI:
* `BASE`: Gets passed to the `BASE` build argument.
* `LDAP_PLUGIN_URL`: Gets passed to the `LDAP_PLUGIN_URL` build argument.
* `IMAGE_TAG`: Is used as image tag, but only in the build for the branch `main`.
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