about env directive

Manlio Perillo manlio_perillo at libero.it
Mon Nov 26 21:23:50 MSK 2007

Igor Sysoev ha scritto:
> On Mon, Nov 26, 2007 at 05:49:28PM +0100, Manlio Perillo wrote:
>> I want to enable the definition of custom environment variables in mod_wsgi.
>> After a quick search in Nginx sources I have found the env directive and 
>> the ngx_set_environment function.
>> Unfortunately the documentation is in Russian only 
>> http://sysoev.ru/nginx/docs/ngx_core_module.html#env.
>> I have found some problems with this directive.
>> - It seems that it is not possible to inherit enviroment variables
>>   from the "system";
>>   only variables defined with env directive are added to os environment
>> - The syntax should be
>>     env VAR|VAR=VALUE,
>>   but, as an example,
>>     env  MALLOC_OPTIONS;
>>   does not put MALLOC_OPTIONS in the environment.
> "env VAR" inherits VAR from initial environment.

Ok, thanks.
So it is not possible to inherits all vars from initial environment.

This seems reasonable, but I'm not sure that disabling implicit 
inheritance of vars from initial environment is always good.

> However, some variables affects before nginx will remove from or add
> to new environment.

This should not be a problem.
I call ngx_set_environment before Py_Initialize.

Manlio Perillo

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