From f85e613b050badabf09c241468527d89661dede0 Mon Sep 17 00:00:00 2001
From: Michael Brown <supermathie@gmail.com>
Date: Thu, 19 Dec 2024 14:53:04 -0500
Subject: [PATCH] FIX: Set the Host header in the nginx.conf upstream block

Using e.g. `proxy_pass http://discourse` resets the Host header on the upstream
request to `discourse`.

This would break multisites, so we don't want that; the most effetive way to
ensure it's set properly is to `set_header` in the upstream block.
---
 templates/web.template.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/templates/web.template.yml b/templates/web.template.yml
index d5dd09526..5a7c18790 100644
--- a/templates/web.template.yml
+++ b/templates/web.template.yml
@@ -146,6 +146,7 @@ run:
       filename: "/etc/nginx/conf.d/discourse.conf"
       from: /upstream[^\}]+\}/m
       to: "upstream discourse {
+        set_header Host $http_host;
         server 127.0.0.1:3000;
       }"