[SOLVED] How to set DOCUMENT_ROOT and SCRIPT

How to set DOCUMENT_ROOT and SCRIPT_NAME correctly for fcgiwrap

I've got a simple script cpuinfo.sh that works and is executable.

I'm getting an error

*224 FastCGI sent in stderr: "Cannot get script name, are DOCUMENT_ROOT and SCRIPT_NAME (or SCRIPT_FILENAME) set and is the script executable?" while reading response header from upstream, client: 86.44.146.39, server: staging.example.com, request: "GET /cpuinfo.sh HTTP/1.1", upstream: "fastcgi://unix:/var/run/fcgiwrap.socket:", host: "staging.example.com"

the nginx settings are

location ~ (\.cgi|\.py|\.sh|\.pl|\.lua)$ {
    gzip off;
    autoindex on;
    fastcgi_pass unix:/var/run/fcgiwrap.socket;
    include fastcgi_params;
    fastcgi_param DOCUMENT_ROOT /home/balance/balance-infosystems-web/scripts/;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}

I'm expecting fcgiwrap to execute

/home/balance/balance-infosystems-web/scripts/cpuinfo.sh

I hard coded the script path to debug but I'm still getting the same error.

location ~ (\.cgi|\.py|\.sh|\.pl|\.lua)$ {
    gzip off;
    autoindex on;
    fastcgi_pass unix:/var/run/fcgiwrap.socket;
    include fastcgi_params;
    fastcgi_param DOCUMENT_ROOT /home/balance/balance-infosystems-web/scripts/;
    # fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_param SCRIPT_FILENAME /home/balance/balance-infosystems-web/scripts/cpuinfo.sh;
}

What needs to be changed in the nginx server config to execute the script correctly?

Solution

I discovered that DOCUMENT_ROOT can not be reset. I normally have scripts directories away from publicly accessible paths. I knew that the scripts directory was the same level the web directory so I tried.

location ~ (\.cgi|\.py|\.sh|\.pl|\.lua)$ {
    gzip off;
    autoindex on;
    fastcgi_pass unix:/var/run/fcgiwrap.socket;
    fastcgi_param SCRIPT_FILENAME $document_root/../scripts/$fastcgi_script_name;
    include fastcgi_params ;
}

which resolved the issue.