my upstream:

upstream upstream_**uba1**_console_f485c00e45256742e2cc641db834b150 { ip_hash; server 192.30.56.172:39443; check interval=2000 rise=1 fall=3 timeout=3000;
}
upstream upstream_**uba2**_console_f485c00e45256742e2cc641db834b150 { ip_hash; server 192.30.56.173:39443; check interval=2000 rise=1 fall=3 timeout=3000;
}

my location:

location /opsuba/ { if ($args ~* region=(\w+?)(&|$)) { set $region $1; } limit_req zone=reqconsole burst=10000 nodelay; limit_conn connconsole 1000; **proxy_pass include error_page_exclude_ajax.conf; include static_file.conf; access_log off;
}

how can i make upstream_${region}_console_f485c00e45256742e2cc641db834b150 replace with variables?

1 Answer

You specify the variable like $1 (from regexp) or $region from the set command.
This should work in your config:

proxy_pass 

I've just tested it with this example config:

upstream upstream_uba1_console_f485c00e45256742e2cc641db834b150 { ip_hash; server 127.0.0.1:39443; }
upstream upstream_uba2_console_f485c00e45256742e2cc641db834b150 { ip_hash; server 127.0.0.1:39444; }
server { listen 80; location ~ ^/([^\/]*) { proxy_pass }
}
server { listen 39443; root /var/www/; location / { try_files /url1.html $uri; }
}
server { listen 39444; root /var/www/; location / { try_files /url2.html $uri; }
}

Files on the filesystem:

/var/www/url1.html -> content url 1
/var/www/url2.html -> content url 2

Access through:

 -> url1.html -> url2.html

I did everything with local backends but will work with yours too.
Also I had to remove some params from your upstream block to make it work.

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