balancer

type Certificate struct {
	Name    string
	Domains []string
	Private []byte
	Public  []byte
}

type Config struct {
	Options   map[string]string
	Exposed   map[string]Exposed
	Upstreams map[string]Upstream
}

type Endpoint struct {
	Options map[string]string
	IP      string
	Port    int
}

type Exposed struct {
	BindPort     int
	Certificates []Certificate
	Options      map[string]string
	HostName     string
	PathBegins   string
	IsDefault    bool
	Upstream     *Upstream
}

type Manager interface {
	WriteConfigAndRestart(config *Config, force bool) error
	StartBalancer() error
	StopBalancer() error
	ReloadBalancer() error

	// healtz
	Name() string
	Check(req *http.Request) error
}

type Upstream struct {
	Name      string
	Options   map[string]string
	Endpoints []Endpoint
}