에러 failed to start container "prometheus-node-exporter": Error response from daemon: path / is mounted on / but it is not a shared or slave mount

 

임시 해결법 : 

nodeExporter:
 ## If true, node-exporter pods mounts host / at /host/root
  ##
  hostRootfs: false

nodeExporter.hostRootfs 를 false로 설정한다.