pushpin 1.1.0-1 (ppc64el binary) in ubuntu vivid

 Pushpin is an HTTP reverse proxy server that makes it easy to implement
 streaming and long-polling services. It communicates with backend web
 applications using regular, short-lived HTTP requests (GRIP protocol). This
 allows the backend applications to be written in any language and use any
 webserver.
 .
 Additionally, Pushpin does all of this without exposing a proprietary protocol
 to clients. The HTTP content between the client and your server is whatever
 you want it to be. This makes it ideal for implementing APIs.