This document describes the concept of Zend Server Plugins, including basic instructions on how to use the feature and code samples.
A Zend Server plugin is an archive file that consists of a Z-Ray extension and Routing information, each one of these being optional. A plugin can be installed via the Zend Server UI.
A plugin is comprised of two main directories: zray and route, respectively including Z-Ray extension and routing information. An additional file that is required for deployment is the deployment.json file which describes the plugin package.
You can download the skeleton package from here: Z-Ray Skeleton Plugin
A very useful UI plugin, which also facilitates the UI Extensions API, can be downloaded from here: Zend Server Web Api Client