Use openresty to dynamically set host and openresty Dynamic host

Use openresty to dynamically set host and openresty Dynamic host
Use openresty to dynamically set host

Due to project requirements, nginx proxy needs to dynamically set the http_host parameter, which is not supported by native nginx. After investigation, it is found that openresty can implement:

1. Install openresty2. start nginx3. modify nginx configuration nginx. conf

Set_by_lua $ new_host 'local prefix = ngx. re. sub (ngx. var. http_host, "(xx-x-xxxxx -). * "," $1 "," o ") if prefix =" xx-x-xxxxx-"then local host = ngx. re. sub (ngx. var. http_host ,"(. *) :( [0-9] {2, 4}) "," $ 1.xx.com: $2 "," o ") return host; else return ngx. var. http_host; end 'proxy_set_header Host $ new_host; proxy_pass $ scheme: // $ new_host $ request_uri;