imiskolee opened a new issue, #8471:
URL: https://github.com/apache/apisix/issues/8471
### Description
If we have a site called `www.a.b.com`, and it's already has a lots router
rules, then we have the new domain for the site `www.c.d.com`, so how to let
the new domain can be works all exists router rules? I am trying
`serverless-pre-function` Plugin, but I don't know how to let it work.
```lua
disable: false
functions:
- |-
return function(conf,ctx)
local mapping = {};
mapping["new_domain"] = "old_domain";
if mapping[ngx.var.host] then
//what shall we do here...
ngx.req.set_header('Host', mapping[ngx.var.host]);
end
end;
phase: rewrite
```
### Environment
- APISIX version (run `apisix version`): 3.5.0
- Operating system (run `uname -a`):
- OpenResty / Nginx version (run `openresty -V` or `nginx -V`):
- 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`):
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