Server Config

Introduction

A small python package to manage configuration as a service backed by a cloud storage for a client-server application.

The need and basic application is from my game development experience. Some constants and definitions (cards, units, spells) needed to be changed remotely on the server, but they were required by the client as well in order to dysplay information for the user.

The first implementation will use AWS S3 as storage

The ideea is to provide a package that can be used in any project with minimal dependencies, as part of a biger application or as a seprate service.

Here comes a list of things that would make my happy :)

Features:

Config AWS
CloudFront and Sign URLS
Read data as JSON from S3
Serve data API
Version data
Bundle data in a zip that can be downloaded by a client
Enviroments (dev, prod)
Promote data different environements (dev -> prod)
Example Service
JSON Schema validation
Scripts for validation of data
Frontend
Trigger data reload remotely

Architecture

Assumptions and limitiations

The data will be kept only as json. The validity of the data is enforced using JSON Schema.

For differents environments, it's assumed that the same structure is kept with a different prefix.

Using dev and prod as the named environments, example of file structure in a bucket:

dev/version.json

dev/files/server_constants.json

dev/files/units/faction1_units.json

dev/files/units/faction2_units.json
prod/version.json

prod/files/server_constants.json

prod/files/units/faction1_units.json

prod/files/units/faction2_units.json

version.json is managed by this package

Config AWS

Having provided valid credentials of an aws account connect using BOTO, specify bucket

Config:

aws credentials
aws region
aws S3 bucket
version file name prefix (default is none) - to avoid clashing with user files
environments

Sign URLS