Adds an option to enable nginx proxy for "dev mode" in docker

- Commented out by default
- No functional change unless code is un-commented in the docker-compose script

docker/nginx.dev.conf

@@ -0,0 +1,57 @@
+
+server {
+
+    # Listen for connection on (internal) port 80
+    listen 80;
+
+    location / {
+        # Change 'inventree-dev-server' to the name of the inventree server container,
+        # and '8000' to the INVENTREE_WEB_PORT (if not default)
+        proxy_pass http://inventree-dev-server:8000;
+
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header Host $http_host;
+
+        proxy_redirect off;
+
+        client_max_body_size 100M;
+
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-Proto $scheme;
+
+        proxy_buffering off;
+        proxy_request_buffering off;
+
+    }
+
+    # Redirect any requests for static files
+    location /static/ {
+        alias /var/www/dev/static/;
+        autoindex on;
+
+        # Caching settings
+        expires 30d;
+        add_header Pragma public;
+        add_header Cache-Control "public";
+    }
+
+    # Redirect any requests for media files
+    location /media/ {
+        alias /var/www/dev/media/;
+
+        # Media files require user authentication
+        auth_request /auth;
+    }
+
+    # Use the 'user' API endpoint for auth
+    location /auth {
+        internal;
+
+        proxy_pass http://inventree-dev-server:8000/auth/;
+
+        proxy_pass_request_body off;
+        proxy_set_header Content-Length "";
+        proxy_set_header X-Original-URI $request_uri;
+    }
+
+}