backend

Documentation

Overview

Package backend implements the backend TSDB server of load balancer app

Index

• Variables
• type Server
  • func New(t base.LBType, u *url.URL, rp *httputil.ReverseProxy, logger *slog.Logger) (Server, error)
  • func NewPyroscope(webURL *url.URL, p *httputil.ReverseProxy, logger *slog.Logger) Server
  • func NewTSDB(webURL *url.URL, p *httputil.ReverseProxy, logger *slog.Logger) Server

Variables

var (
	ErrTypeAssertion = errors.New("failed type assertion")
)

Custom errors.

Types

type Server

type Server interface {
	SetAlive(alive bool)
	IsAlive() bool
	URL() *url.URL
	String() string
	ActiveConnections() int
	RetentionPeriod() time.Duration
	Serve(w http.ResponseWriter, r *http.Request)
}

Server is the interface each backend server (TSDB/Pyroscope) needs to implement.

func New

func New(t base.LBType, u *url.URL, rp *httputil.ReverseProxy, logger *slog.Logger) (Server, error)

New returns a backend server of type `t`.

func NewPyroscope

func NewPyroscope(webURL *url.URL, p *httputil.ReverseProxy, logger *slog.Logger) Server

NewPyroscope returns an instance of backend Pyroscope server.

func NewTSDB

func NewTSDB(webURL *url.URL, p *httputil.ReverseProxy, logger *slog.Logger) Server

NewTSDB returns an instance of backend TSDB server.