N00b: Forwarding the full request to upstream server

[Joel Parker]

I have a situation where I receive a request like:

http://device.healthcheck.com/ready

I want this to be sent to a server upstream but keep the full request
intact. For example:

server {
                resolver 8.8.8.8;
                listen 80;

        location / {
                        // send this too 192.168.10.34
                        proxy_pass $host:$server_port$uri$is_args$args;
                }
}

I know this is probably easy to do but I am not sure how to accomplish this.
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