#20 add notes about using a reverse proxy (e.g. nginx)

README.md

@@ -1019,3 +1019,37 @@ mysql> source path_to/xmysql/tests/sample.sql
 ```
 $ mocha tests/*.js --exit
 ```
+
+# Reverse Proxy
+
+This is a config example when you use nginx as reverse proxy
+
+```
+events {
+   worker_connections 1024;
+   
+}
+http {
+    server {
+        server_name 127.0.0.1;
+        listen 80 ;
+        location / {
+            rewrite ^/(.*) /$1 break;
+            proxy_redirect off;
+            proxy_set_header Host $host;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_pass http://127.0.0.1:3000;
+        }
+    }
+}
+```
+
+e.g.
+
+0. create a docker network `docker network create local_dev`
+1. start a mysql server `docker run -d --name mysql -p 3306:3306 --network local_dev -e MYSQL_ROOT_PASSWORD=password mysql`
+2. start xmysql `docker run -d --network local_dev --name xmyxql -e DATABASE_NAME=sys -e DATABASE_HOST=mysql -p 3000:80 markuman/xmysql:0.4.2`
+3. start nginx on host system with the config above `sudo nginx -g 'daemon off;' -c /tmp/nginx.conf`
+4. profit `curl http://127.0.0.1/api/host_summary_by_file_io_type/describe`
+
+When you start your nginx proxy in a docker container too, use as `proxy_pass` the `--name` value of xmysql. E.g. `proxy_pass http://xmysql` (remember, xmysql runs in it's docker container already on port 80).