mcp.conf

load_module /home/xeioex/workspace/nginx/nginx/objs/ngx_otel_module.so;
error_log /dev/stdout info;
daemon off;
master_process off;

    events { 
}

http {
    js_import main from mcp.js;
    js_set $mcp_tool main.mcp_tool_name;
    js_set $mcp_status main.mcp_tool_status;

    otel_exporter {
        endpoint localhost:4317;
    }

    server {
        listen 9000;

        location / {
            otel_trace on;
            otel_span_attr "mcp.name" $mcp_tool;
            otel_span_attr "mcp.status" $mcp_status;

            js_header_filter main.clear_content_length;
            js_body_filter main.filter;

            proxy_pass http://127.0.0.1:9001;
        }
    }
}