System Overview

You can run everything in one container, but the recommended setup is to split Koha in three/four parts:

• Koha container
• Mysql server (Official docker mysql image)
• Mysql data (Named Data Volume)
• Index data (Named Data Volume, if you want persistent search inside koha).

Koha container

• The running Koha code, including plack, REST API, SIP server and Zebra indexer.
• It also includes a supervisor daemon to rule them all. Using-the-Koha-Docker-image#supervisord
• Connects to mysql server either via docker network or link to mysql server container.

Mysql server

• Standard mysql server, optionally exposed to host at port 3306
• Mounts Mysql Data Volume

Mysql data

• A Docker Named Volume, meaning an isolated file/folder structure that can be mounted anywhere.
• Typically mounted when starting mysql server :

docker run -d -v "koha_mysql_data:/var/lib/mysql" mysql:5.6.20

Koha index data

• Same as above, typically mounted when starting koha container

docker run -d -v "koha_index:/var/lib/koha/myKoha" digibib/koha:<GITREF>