~$ pquery "node_filesystem_files{instance='node1'}" | jq .data.result[].metric
{
  "__name__": "node_filesystem_files",
  "device": "/dev/loop0",
  "fstype": "squashfs",
  "instance": "node1",
  "job": "ec2",
  "mountpoint": "/snap/core/7713"
 }
 {
  "__name__": "node_filesystem_files",
  "device": "/dev/loop1",
  "fstype": "squashfs",
  "instance": "node1",
  "job": "ec2",
  "mountpoint": "/snap/amazon-ssm-agent/1480"
 }
 {
  "__name__": "node_filesystem_files",
  "device": "/dev/loop2",
  "fstype": "squashfs",
  "instance": "node1",
  "job": "ec2",
  "mountpoint": "/snap/core/8268"
 }
 {
  "__name__": "node_filesystem_files",
  "device": "/dev/xvda1",
  "fstype": "ext4",
  "instance": "node1",
  "job": "ec2",
  "mountpoint": "/"
 }
 {
  "__name__": "node_filesystem_files",
  "device": "lxcfs",
  "fstype": "fuse.lxcfs",
  "instance": "node1",
  "job": "ec2",
  "mountpoint": "/var/lib/lxcfs"
 }
