validate payload with cue vet

rules.cue

payload.json:

{
  "resource_id": "/subscription/.../...",
  "version": "2020-07-21",
  "type": "Linux",
  "properties": {
    "custom_log_files": [
      "/var/log/dmesg",
      "/var/log/messages"
    ]
  }
}

rules.cue:

#LoggingLinuxVM: {
  resource_id:  #NonEmptyString
  version:      =~"2020-07-21"
  type:         =~"Linux"
  properties:   #LoggingPropertiesLinuxVM
}

#LoggingPropertiesLinuxVM: {
  CustomLogFiles: [...#NonEmptyString]
}

#NonEmptyString: string & !=""

$: cue vet payload.json rules.cue ; echo $?

# passes for invalid payloads