Webserver on mm-crawler01 and reverseproxy

[Adrian Reber]

To access the crawler logs from the MM2 web-interface (small code
changes still required) I need a web-server on mm-crawler01 which
exports /var/log/mirrormanager/crawler so that I can access the files
via

https://admin.stg.fedoraproject.org/mirrormanager2/crawler/218.log

for example. I am not really sure what changes are necessary to get the
reverse proxies to forward that request to the right backend
(mm-crawler01) and some help setting this up would be appreciated.
Thanks.

Adrian