How to redirect on the same port from http to https with nginx reverse proxy

Question

I use reverse proxy with Nginx and I want to force the request into HTTPS, so if a user wants to access the url with http, he will be automatically redirected to HTTPS.

Answer 1

This worked for me:

server {
listen       80;
server_name  localhost;
...
if ($http_x_forwarded_proto = "http") {
      return 301 https://$server_name$request_uri;
}
location / {
    proxy_set_header X-Forwarded-Host $host;
    proxy_set_header X-Forwarded-Server $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_pass http://localhost:8080;
}

...
}