Created Reverse-proxy BlueMap with NGINX (markdown)

Reverse-proxy-BlueMap-with-NGINX.md

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+Here are some examples how you can use NGINX to reverse-proxy your BlueMap.
+
+This is useful if you want to integrate your map in your website, or want to add SSL-capabilities.
+
+## Assumptions / Prerequisites
+- You have access to your servers shell (not only the minecraft-console). 
+- You have NGINX already [installed](https://docs.nginx.com/nginx/admin-guide/installing-nginx/installing-nginx-open-source/).
+- NGINX is running on the same machine as BlueMaps integrated webserver. *(If that is not the case you'll need to replace `localhost` with the correct ip in the examples below)*
+- BlueMaps integrated webserver is running on port `8100`. *(Again, just replace `8100` with the actual port below)*
+
+## BlueMap on a subdirectory of your website
+If you have a normal website hosted with NGINX and want your map on `/map/` (e.g `https://mydomain.com/map/`) then you can just add this to your NGINX configuration:
+```nginx
+server {
+  
+  ...
+
+  location ~/map(.*)$ {
+    proxy_pass http://localhost:8100$1;
+  }
+}
+```
+
+## BlueMap on a subdomain
+If you want BlueMap on a subdomain e.g. `https://map.mydomain.com/` then you'd add something like this to your nginx config:
+```nginx
+server {
+  listen 80;
+  listen 443 ssl;
+
+  server_name map.mydomain.com;
+
+  location / {
+    proxy_pass http://localhost:8100;
+  }
+}
+```