update config for grafana

grafana/docker-compose.yml

@@ -3,14 +3,13 @@ version: '2.4'
 networks:
   gateway_default:
     external: true
-volumes:
-    grafana_data: {}
 services:
   grafana:
     image: grafana/grafana
-    container_name: grafana
+    user: "0"
+    container_name: graf
     volumes:
-      - grafana_data:/var/lib/grafana
+      - /mnt/grafana-data:/var/lib/grafana
       - ./datasources:/etc/grafana/datasources
       - ./dashboards:/etc/grafana/dashboards
       - ./setup.sh:/setup.sh