[joshstrange]

Pretty much. Salt pushes out a supplemental config file that we use to build a php file (after merging with the defaults) with `define('FLAG_NAME_HERE', value);` that out core application reads at startup. We have different classes/roles for our boxes so we can roll out a flag to a specific type or some of a specific type if we are going to canary. I wouldn't say that our specific method is anything special but it works very well in practice.