Comment 23 for bug 1927029

$ cat /var/lib/cloud/data/result.json
{
 "v1": {
  "datasource": null,
  "errors": [
   "[Errno 21] Is a directory: '/var/lib/cloud/instance'",
   "[Errno 21] Is a directory: '/var/lib/cloud/instance'",
   "[Errno 21] Is a directory: '/var/lib/cloud/instance'",
   "[Errno 21] Is a directory: '/var/lib/cloud/instance'"
  ]
 }
}

Can confirm that's a directory:

$ ls -ald /var/lib/cloud/instance
drwxr-xr-x 2 root root 4096 Jun 22 2017 /var/lib/cloud/instance