Composition

This composition is intended for Helioviewer development. The composition is made up of 6 containers and 3 storage volumes.

container	description
mariadb	Implements the mysql database which stores hv metadata
redis	Redis server for fast caching and temporary storage
api	API server
webserver	[Helioviewer web server](https://github.com/Helioviewer-Project/helioviewer.org
movie builder	Creates movies on request
cli	Admin/Management console

Storage Volume	description
JP2 Storage	Stores jpeg2000 images. Initially only 1 image, more can be downloaded via the cli container
cache storage	Stores image tiles, movies, screenshots, and other temporary data
log storage	Stores application logs (php errors and warnings)

All containers are on the default network. The lines in the above diagram represent the logical relationship between containers. The cli directly updates database info and writes to jp2 storage when downloading data, these relationships are left out to keep the diagram simple.