help request: Apisix uses Nacos for service discovery

[zjc1750514326]

Description

When apisix made a service discovery call to nacos, I found that the host in the route modification request header was not effective. The reason should be that nacos had overwritten it here

Why is the custom host request header about to be discarded?
Another issue is that I am currently using apisix to replace nginx. My original traffic was load balance ->nginx ->app, and my nginx configuration is: proxy_det_header X-Forwarded-Proto 'https' to ensure that the app receives https. So, how should apisix migrate this nginx configuration

Environment

• APISIX version (run apisix version):
  /usr/local/openresty//luajit/bin/luajit /usr/local/apisix/apisix/cli/apisix.lua version
  3.2.0
• Operating system (run uname -a):
  Linux nxcloud-test 3.10.0-1160.66.1.el7.x86_64 change: added doc of how to load plugin. #1 SMP Wed May 18 16:02:34 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
• OpenResty / Nginx version (run openresty -V or nginx -V):
  nginx version: openresty/1.21.4.1
  built by gcc 9.3.1 20200408 (Red Hat 9.3.1-2) (GCC)
  built with OpenSSL 1.1.1s 1 Nov 2022
  TLS SNI support enabled
• etcd version, if relevant (run curl http://127.0.0.1:9090/v1/server_info):
• APISIX Dashboard version, if relevant:
• Plugin runner version, for issues related to plugin runners:
• LuaRocks version, for installation issues (run luarocks --version):