Multi-domain site with different robots and sitemap?

Is there a website, for example, the name of the company.of the Russian Federation.
It is now planned to divide the site into regions that each had their own phone and subdomain.
For each subdomain will be a city.company.Russia, its own site map and your robots.
Want using common "stuffing" of the engine, to divide the rest of the files.
That is, that all the necessary files for the website were taken from a shared folder.
And Sitemaps and robots each had a separate?

PS: Found the first solution for robots https://drupal.ru/node/46111
June 10th 19 at 17:06
1 answer
June 10th 19 at 17:08
Solution
Found first solution for robots https://drupal.ru/node/46111
Well actually, the solution to the second question emerges from the first.
Sitemaps feed through the robots.

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