json_schema: {
      "$schema": "http://json-schema.org/draft-07/schema#",
      "type": "object",
      "description": "Cloud resource specifications",
      "properties": {
          "hypervisor_hostname": {
              "type": "string"
          },
          "id": {
              "type": "integer"
          },
          "memory_mb": {
              "type": "integer"
          },
          "vcpus": {
              "type": "integer"
          },
          "date": {
              "type": "string"
          }
      }
  }