From 7bc9be95cb2225b3ccdd8db2ff6e604e345157ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?B=C3=A9la=20Becker?= <bela@becker.rocks>
Date: Thu, 21 Jan 2021 13:32:25 +0100
Subject: [PATCH] Add map directive to the base of nginx.conf

This needs to be added for WebSocket upgrades to work properly (see doc:
http://nginx.org/en/docs/http/websocket.html)
---
 roles/matrix-nginx-proxy/templates/nginx/nginx.conf.j2 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/roles/matrix-nginx-proxy/templates/nginx/nginx.conf.j2 b/roles/matrix-nginx-proxy/templates/nginx/nginx.conf.j2
index 975c8b4f9..facb0901f 100644
--- a/roles/matrix-nginx-proxy/templates/nginx/nginx.conf.j2
+++ b/roles/matrix-nginx-proxy/templates/nginx/nginx.conf.j2
@@ -45,6 +45,11 @@ http {
 	keepalive_timeout 65;
 
 	#gzip on;
+	{# Map directive needed for proxied WebSocket upgrades #}
+	map $http_upgrade $connection_upgrade {
+		default upgrade;
+		''      close;
+	}
 
 	include /etc/nginx/conf.d/*.conf;
 }