start scraping the /var/log directory for prometheus text files

prometheus/values.yaml

@@ -7,4 +7,9 @@ alertmanager:
      mountPath: /etc/alertmanager/telegram-token
      subPath: ""
      secretName: telegram-api
-     readOnly: true
+     readOnly: true
+prometheus-node-exporter:
+  extraArgs:
+    - '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)'
+    - '--collector.textfile.directory=/host/root/var/log/'
+    - '--collector.ethtool'