upd compose

docker-compose.yml

@@ -1,11 +1,11 @@
-version: '2'
+version: '3.4'
 
 services:
   exporter:
     image: corpglory/grafana-data-exporter:latest
     restart: always
     ports:
-      - 8000: 8000
+      - 8000:8000
     volumes:
       - data-volume:/var/www/data