[Fab-user] Detach grinder java process in fab.

[pat flaherty]

Hi,

I'm using fabric to populate eucalyptus instances in a private cloud 
with company 'client' programs (that then communicate back to my server) 
- and hopefully the last thing fabric does before detaching is startup 
one of these client programs.  However it needs to leave the remote 
client process detached and running as fab exits.

I'd solved an earlier fab detach process problem with

run('... command ...',pty=False)

for a tomcat app server and this worked fine.

This time I have to leave detached a 'grinder' agent process:

http://grinder.sourceforge.net/index.html

The grinder is test automation software.

In particular this is the (grinder) command I want to issue as the last 
statement in my fab routine before fab detaches and exits:

java net.grinder.Grinder

you run this in a particular directory (use 'with cd' in fabric) with 
files configged in certain and the agent/client program attaches itself 
to the grinder console (remotely) and you control the running  of 
multiple agents of the same kind from the grinder console.

Anyway, this process won't detach.  pyt=False doesn't work and I also 
tried the solutions from here:

http://fabric.readthedocs.org/en/latest/faq.html

which include pty=False in addition to such things as this:

run("nohup yes >& /dev/null < /dev/null &")

but so far, no luck.

Any ideas welcome.

Pat