// New initializes a new web Handler.
func New(
st local.Storage,
qe *promql.Engine,
tm *retrieval.TargetManager,
rm *rules.Manager,
version *PrometheusVersion,
flags map[string]string,
o *Options,
) *Handler {
router := route.New()
h := &Handler{
router: router,
listenErrCh: make(chan error),
quitCh: make(chan struct{}),
reloadCh: make(chan struct{}),
options: o,
versionInfo: version,
birth: time.Now(),
flagsMap: flags,
targetManager: tm,
ruleManager: rm,
queryEngine: qe,
storage: st,
apiV1: api_v1.NewAPI(qe, st),
}
if o.ExternalURL.Path != "" {
// If the prefix is missing for the root path, prepend it.
router.Get("/", func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, o.ExternalURL.Path, http.StatusFound)
})
router = router.WithPrefix(o.ExternalURL.Path)
}
instrh := prometheus.InstrumentHandler
instrf := prometheus.InstrumentHandlerFunc
router.Get("/", func(w http.ResponseWriter, r *http.Request) {
router.Redirect(w, r, "/graph", http.StatusFound)
})
router.Get("/alerts", instrf("alerts", h.alerts))
router.Get("/graph", instrf("graph", h.graph))
router.Get("/status", instrf("status", h.status))
router.Get("/flags", instrf("flags", h.flags))
router.Get("/config", instrf("config", h.config))
router.Get("/rules", instrf("rules", h.rules))
router.Get("/targets", instrf("targets", h.targets))
router.Get("/version", instrf("version", h.version))
router.Get("/heap", instrf("heap", dumpHeap))
router.Get(o.MetricsPath, prometheus.Handler().ServeHTTP)
router.Get("/federate", instrh("federate", httputil.CompressionHandler{
Handler: http.HandlerFunc(h.federation),
}))
h.apiV1.Register(router.WithPrefix("/api/v1"))
router.Get("/consoles/*filepath", instrf("consoles", h.consoles))
router.Get("/static/*filepath", instrf("static", serveStaticAsset))
if o.UserAssetsPath != "" {
router.Get("/user/*filepath", instrf("user", route.FileServe(o.UserAssetsPath)))
}
if o.EnableQuit {
router.Post("/-/quit", h.quit)
}
router.Post("/-/reload", h.reload)
router.Get("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
router.Post("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
return h
}
// New initializes a new web Handler.
func New(o *Options) *Handler {
router := route.New(func(r *http.Request) (context.Context, error) {
return o.Context, nil
})
h := &Handler{
router: router,
listenErrCh: make(chan error),
quitCh: make(chan struct{}),
reloadCh: make(chan chan error),
options: o,
versionInfo: o.Version,
birth: time.Now(),
flagsMap: o.Flags,
context: o.Context,
targetManager: o.TargetManager,
ruleManager: o.RuleManager,
queryEngine: o.QueryEngine,
storage: o.Storage,
apiV1: api_v1.NewAPI(o.QueryEngine, o.Storage),
now: model.Now,
}
if o.RoutePrefix != "/" {
// If the prefix is missing for the root path, prepend it.
router.Get("/", func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, o.RoutePrefix, http.StatusFound)
})
router = router.WithPrefix(o.RoutePrefix)
}
instrh := prometheus.InstrumentHandler
instrf := prometheus.InstrumentHandlerFunc
router.Get("/", func(w http.ResponseWriter, r *http.Request) {
router.Redirect(w, r, "/graph", http.StatusFound)
})
router.Get("/alerts", instrf("alerts", h.alerts))
router.Get("/graph", instrf("graph", h.graph))
router.Get("/status", instrf("status", h.status))
router.Get("/flags", instrf("flags", h.flags))
router.Get("/config", instrf("config", h.config))
router.Get("/rules", instrf("rules", h.rules))
router.Get("/targets", instrf("targets", h.targets))
router.Get("/version", instrf("version", h.version))
router.Get("/heap", instrf("heap", dumpHeap))
router.Get(o.MetricsPath, prometheus.Handler().ServeHTTP)
router.Get("/federate", instrh("federate", httputil.CompressionHandler{
Handler: http.HandlerFunc(h.federation),
}))
h.apiV1.Register(router.WithPrefix("/api/v1"))
router.Get("/consoles/*filepath", instrf("consoles", h.consoles))
router.Get("/static/*filepath", instrf("static", serveStaticAsset))
if o.UserAssetsPath != "" {
router.Get("/user/*filepath", instrf("user", route.FileServe(o.UserAssetsPath)))
}
if o.EnableQuit {
router.Post("/-/quit", h.quit)
}
router.Post("/-/reload", h.reload)
router.Get("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
router.Post("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
return h
}