Updated tex files with latest information about the program

docs/src/appendix/NginxAppendex.tex

@@ -1,10 +1,24 @@
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% FILE    : Architecture.tex
-% SUBJECT : Document describing architecture issues in the entire Patch Repository system.
-% AUTHOR  : (C) Copyright 2018 by Locusworks
-%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
 \chapter{NGINX Configuration}
 \label{sample-nginx.conf}
-\lstinputlisting[caption=portal.conf]{figures/portal.conf}
+Place the map in the \command{http} context and the location in your site's HTTPS server block. Configure your hostname, TLS certificates, and HTTP-to-HTTPS redirect in the surrounding site configuration. This forwards the application context and supports WebSocket upgrades.
+\begin{lstlisting}[caption={NGINX forwarding directives}]
+map $http_upgrade $connection_upgrade {
+    default upgrade;
+    ''      close;
+}
+
+# Inside the HTTPS server block:
+location /portal/ {
+    client_max_body_size 10m;
+    proxy_pass http://127.0.0.1:8080;
+    proxy_http_version 1.1;
+    proxy_set_header Host $host;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection $connection_upgrade;
+    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_read_timeout 600s;
+}
+\end{lstlisting}
+See \url{https://nginx.org/en/docs/http/websocket.html} for WebSocket forwarding details.