linuxserver/ldap-auth

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​Ldap-auth software is for authenticating users who request protected resources from servers proxied by nginx. It includes a daemon (ldap-auth) that communicates with an authentication server, and a webserver daemon that generates an authentication cookie based on the user’s credentials. The daemons are written in Python for use with a Lightweight Directory Access Protocol (LDAP) authentication server (OpenLDAP or Microsoft Windows Active Directory 2003 and 2012).
Supported Architectures
Our images support multiple architectures such as x86-64, arm64 and armhf. We utilise the docker manifest for multi-platform awareness. More information is available from docker here and our announcement here.
Simply pulling lscr.io/linuxserver/ldap-auth should retrieve the correct image for your arch, but you can also pull specific arch images via tags.
The architectures supported by this image are:
Architecture
Tag
x86-64
amd64-latest
arm64
arm64v8-latest
armhf
arm32v7-latest
Application Setup
This container itself does not have any settings and it relies on the pertinent information passed through in http headers of incoming requests. Make sure that your webserver is set up with the right config.
Here's a sample config: nginx-ldap-auth.conf.
Unlike the upstream project, this image encodes the cookie information with fernet, using a randomly generated key during container creation (or optionally user defined).
Also unlike the upstream project, this image serves the login page at /ldaplogin (as well as /login) to prevent clashes with reverse proxied apps that may also use /login for their internal auth.
Usage
To help you get started creating a container from this image you can either use docker-compose or the docker cli.
docker-compose (recommended, click here for more info)
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---
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version: "2.1"
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services:
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  ldap-auth:
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    image: lscr.io/linuxserver/ldap-auth
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    container_name: ldap-auth
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    environment:
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      - TZ=Europe/London
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      - FERNETKEY= #optional
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      - CERTFILE= #optional
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      - KEYFILE= #optional
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    ports:
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      - 8888:8888
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      - 9000:9000
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    restart: unless-stopped
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docker cli (click here for more info)
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docker run -d \
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  --name=ldap-auth \
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  -e TZ=Europe/London \
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  -e FERNETKEY= `#optional` \
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  -e CERTFILE= `#optional` \
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  -e KEYFILE= `#optional` \
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  -p 8888:8888 \
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  -p 9000:9000 \
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  --restart unless-stopped \
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  lscr.io/linuxserver/ldap-auth
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Parameters
Docker images are configured using parameters passed at runtime (such as those above). These parameters are separated by a colon and indicate <external>:<internal> respectively. For example, -p 8080:80 would expose port 80 from inside the container to be accessible from the host's IP on port 8080 outside the container.
Ports (-p)
Parameter
Function
8888
the port for ldap auth daemon
9000
the port for ldap login page
Environment Variables (-e)
Env
Function
TZ=Europe/London
Specify a timezone to use EG Europe/London
FERNETKEY=
Optionally define a custom fernet key, has to be base64-encoded 32-byte (only needed if container is frequently recreated, or if using multi-node setups, invalidating previous authentications)
CERTFILE=
Point this to a certificate file to enable HTTP over SSL (HTTPS) for the ldap auth daemon
KEYFILE=
Point this to the private key file, matching the certificate file referred to in CERTFILE
Volume Mappings (-v)
Volume
Function
Miscellaneous Options
Parameter
Function
Environment variables from files (Docker secrets)
You can set any environment variable from a file by using a special prepend FILE__.
As an example:
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-e FILE__PASSWORD=/run/secrets/mysecretpassword
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Will set the environment variable PASSWORD based on the contents of the /run/secrets/mysecretpassword file.
Umask for running applications
For all of our images we provide the ability to override the default umask settings for services started within the containers using the optional -e UMASK=022 setting. Keep in mind umask is not chmod it subtracts from permissions based on it's value it does not add. Please read up here before asking for support.
Docker Mods
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We publish various Docker Mods to enable additional functionality within the containers. The list of Mods available for this image (if any) as well as universal mods that can be applied to any one of our images can be accessed via the dynamic badges above.
Support Info
Shell access whilst the container is running:
docker exec -it ldap-auth /bin/bash
To monitor the logs of the container in realtime:
docker logs -f ldap-auth
Container version number
docker inspect -f '{{ index .Config.Labels "build_version" }}' ldap-auth
Image version number
docker inspect -f '{{ index .Config.Labels "build_version" }}' lscr.io/linuxserver/ldap-auth
Versions
14.05.21: - Add linuxserver wheel index.
12.02.21: - Clean up cargo/rust cache.
10.02.21: - Rebasing to alpine 3.13.
08.09.20: - Set form action correctly.
30.07.20: - Fix bug related to unset optional CERTFILE and KEYFILE vars.
27.07.20: - Add support for HTTP over SSL (HTTPS).
21.07.20: - Add support for optional user defined fernet key.
02.06.20: - Rebasing to alpine 3.12, serve login page at /ldaplogin as well as /login, to prevent clashes with reverese proxied apps.
17.05.20: - Add support for self-signed CA certs.
20.02.20: - Switch to python3.
19.12.19: - Rebasing to alpine 3.11.
01.07.19: - Fall back to base64 encoding when basic http auth is used.
28.06.19: - Rebasing to alpine 3.10.
23.03.19: - Switching to new Base images, shift to arm32v7 tag.
22.02.19: - Rebasing to alpine 3.9.
18.09.18: - Update pip
14.09.18: - Add TZ parameter, remove unnecessary PUID/PGID params
11.08.18: - Initial release.