fix snmp

Author: Mafyuh

docker/grafana/docker-compose.yml

@@ -25,7 +25,8 @@ services:
   snmp-exporter:
     image: prom/snmp-exporter:v0.26.0
     volumes:
-      - /docker/appdata/snmp_generator/snmp.yml:/etc/snmp_exporter/snmp.yml
+      - /docker/appdata/snmp:/etc/snmp_exporter
+    command: --config.file=/etc/snmp-exporter/snmp.yml
 
   node_exporter:
     image: quay.io/prometheus/node-exporter:v1.8.2