inputs: php-fpm url scheme handle '?'

[yverry]

Hi,

telegraf inputs phpfpm doesn't handle '?' char.
In my nginx setup the pool name is a variable like:

# PHP-FPM Monitoring section
    set $pool "default";
    if ($arg_pool) {
            set $pool $arg_pool;
    }

    location ~ "/fpm-(status|ping)" {
        include       /etc/nginx/fastcgi_params;
        fastcgi_pass  unix:/var/run/php-fpm_$pool.sock;
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
         ....
    }

with this config you can call the pool name directly with:

http://localhost/fpm-status?pool=<mysuperpoolname>

Relevant telegraf.conf:

put in your config to use phpfpm inputs like :

[phpfpm]
  urls = ["http://localhost/fpm-status?pool=pool0","http://localhost/fpm-status?pool=pool1"]

System info:

telegraf 1.0.1

Expected behavior:

127.0.0.1 - - [16/Oct/2016:22:39:00 +0200] "GET /fpm-status?pool=pool0 HTTP/1.1" 200 215 "-" "Go-http-client/1.1"
127.0.0.1 - - [16/Oct/2016:22:39:00 +0200] "GET /fpm-status?pool=pool1 HTTP/1.1" 200 206 "-" "Go-http-client/1.1"

Actual behavior:

127.0.0.1 - - [16/Oct/2016:22:26:00 +0200] "GET /fpm-status HTTP/1.1" 502 166 "-" "Go-http-client/1.1"
127.0.0.1 - - [16/Oct/2016:22:26:00 +0200] "GET /fpm-status HTTP/1.1" 502 166 "-" "Go-http-client/1.1"

Workaround

I replace '?' with %3F like:

[phpfpm]
  urls = ["http://localhost/fpm-status%3Fpool=pool0","http://localhost/fpm-status%3Fpool=pool1"]

Regards,
Yann