port

type ConnectionCheck interface {
	CheckConnection(host string, port int) error
}

type Port struct {
	*wait.Retrier

	// the hostname
	Host string `export:"host"`

	// the TCP port
	Port int `export:"port"`

	ConnectionCheck
}

type Preparer struct {
	// a host name or ip address. A TCP connection will be attempted at this host
	// and the specified Port. default: localhost
	Host string `hcl:"host"`

	// the TCP port to attempt to connect to.
	Port int `hcl:"port" required:"true"`

	// the amount of time to wait in between checks. If the interval is not
	// specified, it will default to 5 seconds.
	Interval *time.Duration `hcl:"interval"`

	// the amount of time to wait before running the first check and after a
	// successful check. If no grace period is specified, no grace period will be
	// taken into account.
	GracePeriod *time.Duration `hcl:"grace_period"`

	// the maximum number of attempts before the wait fails. If the maximum number
	// of retries is not set, it will default to 5.
	MaxRetry *int `hcl:"max_retry"`
}

type TCPConnectionCheck struct{}