Feature Request: Allow variables in graphite_param/graphite_data about graphite-nginx-module

[kirimedia]

Hello.

The module aggregates the data of all requests all workers in the shared memory. Shared memory is allocated at the start of nginx. So we need in this moment know how much memory is required.
And that's why necessary to set graphite_data and graphite_param and this it do not get to use nginx variables.
But you can always use the if directive.

location /a {
    if ($scheme = http) {
        graphite_data a.http;
    }
    if ($scheme = https) {
        graphite_data a.https;
    }
    ...
}

Also graphite_param can be determined only once.

location /b {
    graphite_param name=bc.lua aggregate=sum interval=1m;
    content_by_lua '
        ngx.graphite("bc.lua", 1)
    ';
}

location /c {
    content_by_lua '
        ngx.graphite("bc.lua", 1)
    ';
}

May be we will support for dynamically defined graphics (graphite_data with nginx variables and graphics from lua without graphite_param), but it will require a significant change in module.