TemaTres Docker image

This repository holds the TemaTres Dockerfile to be used with the docker-compose configuration in https://gitlab1.ptb.de/m4d/tematres_docker. There you will find an example configuration and more information about the actual start-up process.

About the image itself

This image is based on alpine and populates a docker volume with the application TemaTres Vocabulary Server.

Build process

The build process comprises few steps.

Install curl, wget and unzip

First update the package sources and install curl, wget and unzip (line 5).

Download the application

Pull the current stable version of the application from the latest GitHub.com release using curl (lines 10-13), unzip and delete the downloaded file. Afterwards rearrange the folder structure.

Copy script to enable application set up

Copy docker-entrypoint.sh to the root directory of the image to enable the setup process of the database connection on container startup.

Make sure the data is persistent

To make sure, that the TemaTres files are not overridden by a volume but populate a volume as expected, we make /opt/tematres' content available to the outside world.

Environment variables

During container start there are several mandatory and optional environment variables available to connect to an existing database. The following descriptions are a slightly enhanced versions of the documentation taken from TemaTres GitHub-Repo.

Available environment variables

DBPASS: The only mandatory environment variable to set is the password for the MySQL user to write to the specified database table.

Optional variables

This list mentions the default value if not explicitly specified differently.

• DBDRIVER = : Select driver to use can be mysqli, postgres, oci8, mssql, and more.
• SERVER = tematres_mysql: Dirección IP o nombre del servidor - IP Address or qualified name of the database server. Use the container name in Docker context.
• DBNAME = tematres: Nombre de la base de datos Database name.
• DBLOGIN = tematres: Nombre de usuario - login. Use the MySQL username for the specified database.
• DBPREFIX = vocab_: Prefijo para tablas. Prefix for tables.