mailgun/vulcand — pull request #146 by klizhentas (2014-12-30 00:55:33+00:00)
Title: Alexander/scope

Purpose
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In the existing implementation there is no way to limit the listener socket to a particular host.

Implementation
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This pull request introduces Listener scope. Listener scope is a request matching expression that allows the request that is accepted on this socket to proceed only if it matches the routing expression.