NGINX match host header to address upstream

[mokaz]

Hi team,

Been wondering if matching hosts from the host header in HTTP would be possible in order to address different upstream servers, obviously serving different purposes.

so the idea would be:
nginx:443 --> host header = host1.domain.suffix --> upstream_1
nginx:443 --> host header = host2.domain.suffix --> upstream_2
and so on.

The backend is not using TLS, so TLS is terminated at the NGINX level. In my testings, it seems that within the "location" I can match URL but not the requested hostname, maybe i'm missing something really obvious here. I succeeded at such a config using caddy but if ever possible I'd like to couple that with NGINX + Naxsi WAF.

Let me know,
regards,
m.