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phorge-phorge/src/infrastructure/env/PhabricatorConfigSiteSource.php
epriestley 6a5369b173 Add an extensible "SiteSource" for configuration
Summary:
Fixes T2792. This adds a pluggable configuration layer between all the stuff on disk (local/file) and the runtime configurable stuff (database).

An install can subclass this source and:

  - For Phacility, query a remote service (like Almanac) to retrieve hostname-based configuration, allowing one install to serve multiple instances.
  - Maybe for Phacility, query a remote service (like Phlux) to retrieve sitevar-like configuration (e.g., put everything in readonly mode to deal with a maintenance issue?). Not sure if we'll do this or not. We might just nuke Phlux since Almanac is sort-of-a-superset of it for our purposes.
  - For third parties, query some other remote service if that makes config management easier. In particular, it would theoretically let you put locked config in Zookeeper or whatever else you want.

Test Plan: Added a fake source and saw it inject configuration.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T2792

Differential Revision: https://secure.phabricator.com/D10787
2014-11-05 15:30:40 -08:00

17 lines
354 B
PHP

<?php
/**
* Optional configuration source which loads between local sources and the
* database source.
*
* Subclasses of this source can read external configuration sources (like a
* remote server).
*/
abstract class PhabricatorConfigSiteSource
extends PhabricatorConfigProxySource {
public function getPriority() {
return 1000.0;
}
}