openshift/origin-server — pull request #4323 by mmcgrath-openshift (2013-12-11 22:28:04+00:00)
Title: Customized haproxy auto scaling algorithm support

This allows users to create a .openshift/action_hooks/haproxy_ctld.rb file to override the default haproxy_ctl daemon. There's also several 'psudo' examples of what they could do with the script.