Add Nginx configuration for Grafana proxying

nginx.conf

@@ -73,6 +73,15 @@ http {
             proxy_set_header Host $host;
         }
 
+        # Grafana
+        location /grafana/ {
+            proxy_pass http://127.0.0.1:3000/;
+            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;
+        }
+
         # Prometheus UI
         location /prometheus/ {
             proxy_pass http://prometheus/prometheus/;