On May 21, 11:51 pm, Donn Ingle <donn.in...@gmail.com> wrote:
> Hi,
> Given that my apache uses many VirtualHosts and within each a ServerName,
> how can I get that ServerName into a variable in my settings.py file?
>
> I am usingWSGIand mod_python. (different setups on dev vs. server)
>
> The reason is that I need to be able to build the wholehttp://servernamein
> functions all over the place, like the models and request context -- places
> where I *don't* have a request variable. All I have is access to
> settings.SOME_VAR -- hence I would like to get:
>
> apache: ServerName ---> settings.py: SERVER_NAME
>
> Any help/suggestions?
Strictly speaking you can't as the relationship between a VirtualHost
and a specific Python sub interpreter is dynamic.
You could work around it though by relying on the name of the sub
interpreter which is created. In mod_python you can access the name of
the sub interpreter using mod_python.apache.interpreter. In mod_wsgi
(requires mod_wsgi >= 2.4) you can access the name of the sub
interpreter as mod_wsgi.application_group. You obviously need to
import those respective modules first.
For the case of mod_wsgi above, the default generated application
group name, ie., sub interpreter, actually has the server name and
WSGI application mount point in it, so you wouldn't even need to
explicitly name the sub interpreter but just extract the server name
component out of mod_wsgi.application_group.
import mod_wsgi
server_name = mod_wsgi.application_group.split('|')[0]
Because mod_python defaults to one sub interpreter per virtual host,
vs, one per application like mod_wsgi, then the actual sub interpreter
name is probably the server name. So can just use it as is:
import mod_python.apache
server_name = mod_python.apache.interpreter
If you are in a situation where you are forced to run your application
in main interpreter then this will not work. For mod_wsgi you could
use daemon mode and name the process group the same as the server name
and instead access mod_wsgi.process_group. Otherwise the only other
way would be to use PythonImport or WSGIImportScript to import a file
which sets up a variable somewhere you can access, but then you need
to have such a file for each virtual host. Since for mod_wsgi at least
you are going to have one WSGI script file per host anyway, you
probably may as well set it at the start of it.
Graham
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