Setup multiple domains info not correct in Set up multiple websites or stores with nginx topic

[hungpvdev]

General issue

Setup multiple domains using multiple virtual hosts is not correct

Description:

-- In multiple virtual hosts, using Nginx "map" directive will not work correctly due to "map" directive only run once for the same variable.

Since variables are evaluated only when they are used, the mere declaration even of a large number of “map” variables does not add any extra costs to request processing.

http://nginx.org/en/docs/http/ngx_http_map_module.html#map

Possible solutions:

Instead of using map directive, we will set variable directly, map directive does not necessary due to we create Nginx file for each domain.
set $MAGE_RUN_TYPE store;
set $MAGE_RUN_CODE fr;

Additional information:

http://nginx.org/en/docs/http/ngx_http_map_module.html#map

[dineshvb]

@magento I am working on this