Update syncthing setup

templates/syncthing/nginx.j2

@@ -0,0 +1,21 @@
+# {{ ansible_managed }}
+
+upstream syncthing-upstream {
+    server syncthing:8384;
+}
+
+server {
+  listen 80;
+  server_name {{ syncthing_domain }};
+
+  location / {
+    proxy_set_header   Host $host;
+    proxy_set_header   X-Real-IP $remote_addr;
+    proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header   X-Forwarded-Proto $scheme;
+
+    proxy_pass         http://syncthing-upstream;
+    proxy_read_timeout 600;
+    proxy_send_timeout 600;
+  }
+}