[X2go-Dev] x2goserver goes pluggable

[Moritz Struebe]

On 2011-09-30 09:08, Mike Gabriel wrote:
>> * what happens to stdout and stderr? What is propagated to the 
>> client/logfile/</dev/null>?
>
> The x2goserver-run-extensions script silence the sub-scripts complete. 
> Just committed to Git. Thanks.

IS this a good idea? That is no fun debugging - and maybe those scripts 
want to output to the session log.

>
>> * Why always return 0? At least for pre-* it might be nice if 
>> something can fail.
>
> Hmmmm... Really depends on the use case. On the one hand you are right 
> on the other hand failing extensions scare me. Hmmm...

Well, actually I was mainly thinking of pre-start. It can be abused to 
implement access-control. Or you might not want to allow a new session 
if some service fails to start. We have fail-* to clean up already 
started services


>> * What about the environment? What information do I get 
>> (client-string/version/username/remote ip)?
>
> You have the SESSION_NAME (as $1). With that the subscripts can obtain 
> the rest (from x2golistsessions etc.). 

Ah ok. Maybe a pointer to that wouldn't be too bad.


Another thing came to mind: What about turning around the naming-sceme:
start-pre
start-post
start-fail
That way things that belong together are listed together (also thinking 
of tab-compleation). I am happy with the current solution, too, though.

And yet another idea: What about passing "pre-start" etc as first 
parameter.  (similar to intit.d) That way every service only needs one 
script and can use symlinks.

Cheers
Morty

-- 
Dipl.-Ing. Moritz 'Morty' Struebe (Wissenschaftlicher Mitarbeiter)
Lehrstuhl für Informatik 4 (Verteilte Systeme und Betriebssysteme)
Friedrich-Alexander-Universität Erlangen-Nürnberg
Martensstr. 1
91058 Erlangen

Tel   : +49 9131 85-25419
Fax   : +49 9131 85-28732
eMail : struebe at informatik.uni-erlangen.de
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