object(
    {
      cmd_pre  = optional(list(string), [])
      list     = optional(list(string), [])
      cmd_post = optional(list(string), [])
    }
  )

{
  "cmd_post": [],
  "cmd_pre": [],
  "list": []
}

object(
    {
      agree_tos    = bool
      staging      = optional(bool)
      email        = string
      http_01_port = optional(number)
    }
  )

list(
    object(
      {
        ip       = string
        hostname = string
        fqdn     = string
      }
    )
  )

object(
    {
      name    = optional(string, "docker.io/stalwartlabs/mail-server")
      version = optional(string, "latest")
    }
  )

{
  "name": "docker.io/stalwartlabs/mail-server",
  "version": "latest"
}

object(
    {
      time_zone = optional(string, "")
      windows = list(
        object(
          {
            days           = list(string)
            start_time     = string
            length_minutes = string
          }
        )
      )
    }
  )