json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "title": "User configuration",
      "properties": {
          "name": {
              "propertyOrder": 10,
              "title": "Name",
              "type": "string"
          },
          "password": {
              "propertyOrder": 20,
              "title": "Password",
              "type": "string"
          },
          "passwordHash": {
              "propertyOrder": 21,
              "title": "Password hash",
              "type": "string"
          },
          "roles": {
              "propertyOrder": 35,
              "title": "Roles, comma-separated",
              "type": "string"
          }
      },
      "additionalProperties": false
  }