From prasanna.mulgaonkar at gmail.com  Wed Oct 22 23:29:28 2014
From: prasanna.mulgaonkar at gmail.com (Prasanna Mulgaonkar)
Date: Wed, 22 Oct 2014 14:29:28 -0700
Subject: [execnet-dev] Multihopping execnet connections
Message-ID: <544821B8.9020404@gmail.com>

I am trying to use execnet for a monitoring application where one server 
(say A) needs to reach into another (say C) and execute some python 
code.  This works just fine using execnet, and the fact that it is a 
zero footprint mechanism means that (other than python) C does not have 
to have anything else preconfigured on it.

Occasionally I see situations where there is no direct connectivity from 
A to C, and one needs to hop through some gateway device (say B), where 
B simply serves as a relay for any channels coming from A or C. To do 
this, I send over a python module from A to B which then opens another 
gateway to C.

However, this solution requires that B have execnet installed.

Is there any way that execnet can bootstrap itself onto the intermediate 
machine B? I can open SSH to B, I have root on B if I need to (which 
means I can install execnet if it does not exist). But the ideal 
solution would be to send execnet itself as a module, or at least the 
key parts of it over the channel from A to B.

Pointers much appreciated.

--prasanna