Unofficial OTRS 5 docker image
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OTRS 5 Ticketing System

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Unofficial OTRS 5 Free docker image. This repository contains the Dockerfiles and all other files needed to build and run the container.

We also include a MariaDB Dockerfile for a pre-configured image with the required database settings.

The OTRS image doesn't include a SMTP service, decoupling applications into multiple containers makes it much easier to scale horizontally and reuse containers. If you don't have access to a SMTP server, you can instead link against this SMTP relay postfix container.

These images are based on the official CentOS images and include the latest OTRS version. Older images will be tagged with the OTRS version they run.

Mod_perl is enabled by default.

OTRS 4 image sources are still available in otrs-4_0_x branch.

Build instructions

We use docker-compose to build the images. Clone this repo and then:

cd docker-otrs
sudo docker-compose build

This command will build all the images and pull the missing ones like the SMTP relay.

You can also find a prebuilt image from Docker Hub, which can be pulled with this command:

sudo docker pull juanluisbaptiste/otrs:latest

How to run it

By default, when the container is run it will load a default vanilla OTRS installation (OTRS_INSTALL=no) that is ready to be configured as you need. However, you can load a backup or run the installer by defining one of these env variables:

  • OTRS_INSTALL=restore Will restore the backup specified by OTRS_BACKUP_DATE environment variable.
  • OTRS_BACKUP_DATE is the backup name to restore, in the same date_time format that the OTRS backup script uses, for example OTRS_BACKUP_DATE="2015-05-26_00-32" (This is the notation that the backup script that comes with OTRS uses). Backups must be inside the /var/otrs/backups directory (you should host mount it).
  • OTRS_DROP_DATABASE=yes Will drop the otrs database it if already exists (by default the container will fail if the database already exists).

You need to mount that backups volume from somewhere, it can be from another volume (using --volumes-from) or mounting a host volume which contains the backup files.

  • OTRS_INSTALL=yes Will run the installer which you can access at:


If you are running the container remotely, replace localhost with the server's hostname.

There are also some other environment variables that can be set to customize the default install:

  • OTRS_HOSTNAME Sets the container's hostname (autogenerated if not defined).
  • OTRS_SYSTEM_ID Sets the system's ticketing ID.
  • OTRS_ADMIN_EMAIL Sets the admin user email.
  • OTRS_ORGANIZATION Sets the organization name (ex: MyCompany Ltd.)
  • OTRS_DB_PASSWORD otrs user database password. If it's not set the password will be randomly generated (recommended).
  • OTRS_ROOT_PASSWORD root@localhost user password. Default password is changeme.
  • OTRS_POSTMASTER_FETCH_TIME Sets the time interval (at otrs user's crontab) OTRS should fetch emails from the configured postmaster accounts. This value it's 10 minutes by default, but I like to set it to 5 minutes. Email fetching can be disabled altogether by setting this variable to 0 (useful while configuring).
  • OTRS_LANGUAGE Set the default language for both agent and customer interfaces (For example, "es" for spanish).
  • OTRS_TICKET_COUNTER Sets the starting point for the ticket counter.
  • OTRS_NUMBER_GENERATOR Sets the ticket number generator, possible values are : DateChecksum, Date, AutoIncrement or Random.

Those environment variables is what you can configure by running the installer for a default install.

After adjusting the docker-compose.yml, you can test the containers with docker-compose:

sudo docker-compose build
sudo docker-compose up

This will bring up all needed containers, link them and mount volumes according to the docker-compose.yml configuration file.

The default database password is changeme, to change it, edit the docker-compose.yml file and change the MYSQL_ROOT_PASSWORD environment variable on the mariadb image definition before running docker-compose.

To start the containers in production mode use this docker-compose.yml file that points to images to be pulled and run instead of Dockerfiles being built:

sudo docker-compose -f docker-compose-prod.yml -p companyotrs up -d

After the containers finish starting up you can access the OTRS system at the following addresses:

Administration Interface


Customer Interface


Changing OTRS default skins

The default skins and logos for the agent and customer interfaces can be controlled with the following environment variables:

To set the agent interface skin set OTRS_AGENT_SKIN environment variable, for example:


To set the agent Interface logo set OTRS_AGENT_LOGO:

OTRS_AGENT_LOGO: skins/Agent/ivory/img/your_logo.png

You can also control the logo's size and placement (set in px units):


To set the customer interface skin set OTRS_CUSTOMER_SKIN environment variable, for example:


To set the customer Interface logo set OTRS_CUSTOMER_LOGO:

OTRS_CUSTOMER_LOGO: skins/Customer/ivory/img/your_logo.png

You can also control the logo's size and placement (set in px units):


If you are adding your own skins, the easiest way is create your own Dockerfile inherited from this image and then COPY the skin files there. You can also set all the environment variables in there too, for example:

FROM juanluisbaptiste/otrs:latest
ENV OTRS_AGENT_LOGO skins/Agent/mycompany/img/logo.png
ENV OTRS_CUSTOMER_LOGO skins/Customer/default/img/logo_customer.png

RUN mkdir -p $OTRS_ROOT/Kernel/Config/Files/
COPY skins/Agent/MyCompanySkin.xml $OTRS_ROOT/Kernel/Config/Files/

Using host-mounted data containers

If you want to store OTRS MySQL and configuration files outside the containers then you need to modify the docker-compose.yml file to map those directories to a directory in the host (available on both OTRS 4 & 5 images). First, modify the data containers to map the volume directories to the host:

  image: centos/mariadb:latest
  - ./volumes/mysql:/var/lib/mysql
  - /etc/localtime:/etc/localtime:ro
  command: /bin/true
  image: juanluisbaptiste/otrs:latest
  - ./volumes/config:/opt/otrs/Kernel
  - ./backups:/var/otrs/backups
  - /etc/localtime:/etc/localtime:ro
  command: /bin/true


Make sure that the directories on the docker host for both OTRS configuration and the MySQL data containers has the correct permissions to be accessed from within the containers. The volumes/mysql directory should be owned by the MySQL user (27) and the volumes/config directory must be owned by id 500 and group id 48. Before running docker-compose up make sure permissions are ok:

chown 27 volumes/mysql
chown 500:48 volumes/config

Backing up the container configuration

Run /opt/otrs/scripts/ script to create a full backup that will be copied to /var/otrs/backups. If you mounted that directory as a host volume then you will have access to the backups files from the docker host server. You can setup a periodic cron job on the host that runs the following command:

docker exec otrs /opt/otrs/scripts/