martinknafve / bitifier.configuration Goto Github PK

It would be nice to add the ability to override the configuration for a specific target.

Usage scenario

1. You have a configuration at http://azurestorage.com/configs/myapplication.config
2. You have many instaces of myapplication running, all using the same config file
3. Some subset of the instances are misbehaving, so you want to enable detailed logging on this subset but not all of the instances. This means you want to change the logging configuration from "info" to "trace" to be able to figure out what is happening
4. Doing this on all instances is not feasible since it would overwhelm the logging system, but doing it on a subset is ok

Simple solution

This solution doesn´t scale well but it gives some nice benefits. The suggestion is to make Bitifier.Configuration do two requests each time it looks for updated configs. One to an instance specific url and the other one to the specified configuration url.

http://azurestorage.com/configs/myapplication.config<.instanceid>

This way it would be easy to enable features of specific instaces for different purposes.

Scaling, more advanced solution

A solution that would scale better could be to include multiple versions of the config in the encrypted file along with metadata that specifies which instances the config is valid for (a regexp or an ip range maybe).