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README.md

Supported tags and respective Dockerfile links

Quick reference

What is Redmine?

Redmine is a free and open source, web-based project management and issue tracking tool. It allows users to manage multiple projects and associated subprojects. It features per project wikis and forums, time tracking, and flexible role based access control. It includes a calendar and Gantt charts to aid visual representation of projects and their deadlines. Redmine integrates with various version control systems and includes a repository browser and diff viewer.

wikipedia.org/wiki/Redmine

logo

How to use this image

Run Redmine with SQLite3

This is the simplest setup; just run redmine.

$ docker run -d --name some-redmine redmine

not for multi-user production use (redmine wiki)

Run Redmine with a Database Container

Running Redmine with a database server is the recommended way.

  1. start a database container

    • PostgreSQL

      $ docker run -d --name some-postgres --network some-network -e POSTGRES_PASSWORD=secret -e POSTGRES_USER=redmine postgres

    • MySQL (replace -e REDMINE_DB_POSTGRES=some-postgres with -e REDMINE_DB_MYSQL=some-mysql when running Redmine)

      $ docker run -d --name some-mysql --network some-network -e MYSQL_USER=redmine -e MYSQL_PASSWORD=secret -e MYSQL_DATABASE=redmine -e MYSQL_RANDOM_ROOT_PASSWORD=1 mysql:5.7

  2. start redmine

    $ docker run -d --name some-redmine --network some-network -e REDMINE_DB_POSTGRES=some-postgres -e REDMINE_DB_USERNAME=redmine -e REDMINE_DB_PASSWORD=secret redmine

... via docker stack deploy or docker-compose

Example stack.yml for redmine:

version: '3.1'

services:

  redmine:
    image: redmine
    restart: always
    ports:
      - 8080:3000
    environment:
      REDMINE_DB_MYSQL: db
      REDMINE_DB_PASSWORD: example

  db:
    image: mysql:5.7
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: example
      MYSQL_DATABASE: redmine

Try in PWD

Run docker stack deploy -c stack.yml redmine (or docker-compose -f stack.yml up), wait for it to initialize completely, and visit http://swarm-ip:8080, http://localhost:8080, or http://host-ip:8080 (as appropriate).

Alternative Web Server

The other tags in this repository, like those with passenger, use the same environment and --links as the default tags that use WEBrick (rails s) but instead give you the option of a different web and application server. passenger uses Phusion Passenger. tini is used for reaping zombies.

Accessing the Application

Currently, the default user and password from upstream is admin/admin (logging into the application).

Where to Store Data

Important note: There are several ways to store data used by applications that run in Docker containers. We encourage users of the redmine images to familiarize themselves with the options available, including:

  • Let Docker manage the storage of your files by writing the files to disk on the host system using its own internal volume management. This is the default and is easy and fairly transparent to the user. The downside is that the files may be hard to locate for tools and applications that run directly on the host system, i.e. outside containers.
  • Create a data directory on the host system (outside the container) and mount this to a directory visible from inside the container. This places the database files in a known location on the host system, and makes it easy for tools and applications on the host system to access the files. The downside is that the user needs to make sure that the directory exists, and that e.g. directory permissions and other security mechanisms on the host system are set up correctly.

The Docker documentation is a good starting point for understanding the different storage options and variations, and there are multiple blogs and forum postings that discuss and give advice in this area. We will simply show the basic procedure here for the latter option above:

  1. Create a data directory on a suitable volume on your host system, e.g. /my/own/datadir.

  2. Start your redmine container like this:

    $ docker run -d --name some-redmine -v /my/own/datadir:/usr/src/redmine/files --link some-postgres:postgres redmine

The -v /my/own/datadir:/usr/src/redmine/files part of the command mounts the /my/own/datadir directory from the underlying host system as /usr/src/redmine/files inside the container, where Redmine will store uploaded files.

Port Mapping

If you'd like to be able to access the instance from the host without the container's IP, standard port mappings can be used. Just add -p 3000:3000 to the docker run arguments and then access either http://localhost:3000 or http://host-ip:3000 in a browser.

Environment Variables

When you start the redmine image, you can adjust the configuration of the instance by passing one or more environment variables on the docker run command line.

REDMINE_DB_MYSQL or REDMINE_DB_POSTGRES

These two variables allow you to set the hostname or IP address of the MySQL or PostgreSQL host, respectively. These values are mutually exclusive so it is undefined behavior if both are set. If neither variable is set, the image will fall back to using SQLite.

REDMINE_DB_PORT

This variable allows you to specify a custom database connection port. If unspecified, it will default to the regular connection ports: 3306 for MySQL, 5432 for PostgreSQL, and empty string for SQLite.

REDMINE_DB_USERNAME

This variable sets the user that Redmine and any rake tasks use to connect to the specified database. If unspecified, it will default to root for MySQL, postgres for PostgreSQL, or redmine for SQLite.

REDMINE_DB_PASSWORD

This variable sets the password that the specified user will use in connecting to the database. There is no default value.

REDMINE_DB_DATABASE

This variable sets the database that Redmine will use in the specified database server. If not specified, it will default to redmine for MySQL, the value of REDMINE_DB_USERNAME for PostgreSQL, or sqlite/redmine.db for SQLite.

REDMINE_DB_ENCODING

This variable sets the character encoding to use when connecting to the database server. If unspecified, it will use the default for the mysql2 library (UTF-8) for MySQL, utf8 for PostgreSQL, or utf8 for SQLite.

REDMINE_NO_DB_MIGRATE

This variable allows you to control if rake db:migrate is run on container start. Just set the variable to a non-empty string like 1 or true and the migrate script will not automatically run on container start.

db:migrate will also not run if you start your image with something other than the default CMD, like bash. See the current docker-entrypoint.sh in your image for details.

REDMINE_PLUGINS_MIGRATE

This variable allows you to control if rake redmine:plugins:migrate is run on container start. Just set the variable to a non-empty string like 1 or true and the migrate script will be automatically run on every container start. It will be run after db:migrate.

redmine:plugins:migrate will not run if you start your image with something other than the default CMD, like bash. See the current docker-entrypoint.sh in your image for details.

REDMINE_SECRET_KEY_BASE

This variable is used to create an initial config/secrets.yml and set the secret_key_base value, which is "used by Rails to encode cookies storing session data thus preventing their tampering. Generating a new secret token invalidates all existing sessions after restart" (session store). If you do not set this variable or provide a secrets.yml one will be generated using rake generate_secret_token.

Docker Secrets

As an alternative to passing sensitive information via environment variables, _FILE may be appended to the previously listed environment variables, causing the initialization script to load the values for those variables from files present in the container. In particular, this can be used to load passwords from Docker secrets stored in /run/secrets/<secret_name> files. For example:

$ docker run -d --name some-redmine -e REDMINE_DB_MYSQL_FILE=/run/secrets/mysql-host -e REDMINE_DB_PASSWORD_FILE=/run/secrets/mysql-root redmine:tag

Currently, this is only supported for REDMINE_DB_MYSQL, REDMINE_DB_POSTGRES, REDMINE_DB_PORT, REDMINE_DB_USERNAME, REDMINE_DB_PASSWORD, REDMINE_DB_DATABASE, REDMINE_DB_ENCODING, and REDMINE_SECRET_KEY_BASE.

Image Variants

The redmine images come in many flavors, each designed for a specific use case.

redmine:<version>

This is the defacto image. If you are unsure about what your needs are, you probably want to use this one. It is designed to be used both as a throw away container (mount your source code and start the container to start your app), as well as the base to build other images off of.

redmine:<version>-alpine

This image is based on the popular Alpine Linux project, available in the alpine official image. Alpine Linux is much smaller than most distribution base images (~5MB), and thus leads to much slimmer images in general.

This variant is highly recommended when final image size being as small as possible is desired. The main caveat to note is that it does use musl libc instead of glibc and friends, so certain software might run into issues depending on the depth of their libc requirements. However, most software doesn't have an issue with this, so this variant is usually a very safe choice. See this Hacker News comment thread for more discussion of the issues that might arise and some pro/con comparisons of using Alpine-based images.

To minimize image size, it's uncommon for additional related tools (such as git or bash) to be included in Alpine-based images. Using this image as a base, add the things you need in your own Dockerfile (see the alpine image description for examples of how to install packages if you are unfamiliar).

License

Redmine is open source and released under the terms of the GNU General Public License v2 (GPL).

As with all Docker images, these likely also contain other software which may be under other licenses (such as Bash, etc from the base distribution, along with any direct or indirect dependencies of the primary software being contained).

Some additional license information which was able to be auto-detected might be found in the repo-info repository's redmine/ directory.

As for any pre-built image usage, it is the image user's responsibility to ensure that any use of this image complies with any relevant licenses for all software contained within.