Staticization - is this configuration possible with nginx?

Question

Now our nginx supports the response of the pan-domain name, *.domain.com, and we have made the homepage static for the sub-sites under the pan-domain name:
For example: sc.domain.com The static homepage file is sc_index.html
Can nginx be configured to implement a request for sc.domain.com/index.html when the response is thrown sc_index.html

Answer 1

I just got this configuration recently, just add the following configuration:

location =/ {
rewrite (.*) /static_index.html last;
}

Answer 2

rewrite