help request: How to create a root span while ignoring the traceparent in the request header.

[bai-ming]

Description

I want to create a root span by x-request-id.
my config is :

opentelemetry:
    trace_id_source: x-request-id
    resource:
      service.name: APISIX
    collector:
      address: 10.142.0.35:4318
      request_timeout: 3
      request_headers:
        Authorization: token
    batch_span_processor:
      drop_on_queue_full: false
      max_queue_size: 1024
      batch_timeout: 2
      inactive_timeout: 1
      max_export_batch_size: 16

bug when i open the opentelemetry plugin in the route, the trace_id doesn't equal x-request-id but traceparent.
I find the code in apisix/plugins/opentelemetry.lua,

local upstream_context = trace_context_propagator:extract(context, ngx.req)

In the OpenResty , the ngx.req is only read,so I can not change the header of req.
So what can i do to ignore the traceparent in the request header?

Environment

• APISIX version (run apisix version): 3.9.0
• Operating system (run uname -a): Linux eb-apisix-deploy-79c5f88c84-5r8v7 4.15.0-212-generic apisix 脚本stop、reload 也需要增加 -c 参数指定 nginx.conf 路径 #223-Ubuntu SMP Tue May 23 13:09:22 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
• OpenResty / Nginx version (run openresty -V or nginx -V): openresty/1.25.3.1
• etcd version, if relevant (run curl http://127.0.0.1:9090/v1/server_info):3.5.0