Openresty conf for generating TCP / UDP traffic from gets

nginx-traffic-generator.conf

worker_processes 8;
# daemon off;
# master_process off;
error_log /dev/stdout info;

events {

	worker_connections 1024;
}

http {
    lua_shared_dict req 1m;

    init_by_lua_block {
        local file = io.open("/etc/somefile.json","r")
        local contents = file:read()
        file:close()
        local req = ngx.shared.req;
        req:set("req",contents);
    }

    include mime.types;
    default_type application/octet-stream;
    sendfile on;
    keepalive_timeout 65;
    server {
        listen 10082 default_server;
        server_name _;

        location /tcp {
            root /var/www;
            index index.html;
            content_by_lua_block {
                local req = ngx.shared.req;
                local socket = ngx.socket
                local tcp = assert(socket.tcp())
                local ok, err = tcp:connect("127.0.0.1",20001)
                if not ok then
                    ngx.status = 503
                    ngx.say("TCP failed to connect")
                    return
                end
                local ok, err = tcp:send(req:get("req"))
                if not ok then
                    ngx.status = 503
                    ngx.say("TCP failed to send")
                    return
                end
                tcp:close()
                ngx.say("tcp")
            }
        }
        location /udp {
            root /var/www;
            index index.html;
            content_by_lua_block {
                local req = ngx.shared.req;
                local socket = ngx.socket
                local udp = assert(socket.udp())
                local ok, err = udp:setpeername("127.0.0.1", 20001)
                local ok, err = udp:send(req:get("req"))
                if not ok then
                    ngx.status = 503
                    ngx.say "UDP failed to send"
                    return
                end
                ngx.say("udp")
            }
        }


    }
}