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// Copyright 2015 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ui
import (
"fmt"
"net/http"
_ "net/http/pprof" // Comment this line to disable pprof endpoint.
"path/filepath"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/common/route"
)
// Register registers handlers to serve files for the web interface.
func Register(r *route.Router, reloadCh chan<- chan error, uiPath string) {
r.Get("/metrics", promhttp.Handler().ServeHTTP)
r.Get("/", http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
http.ServeFile(w, req, filepath.Join(uiPath, "index.html"))
}))
r.Get("/script.js", http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
http.ServeFile(w, req, filepath.Join(uiPath, "script.js"))
}))
r.Get("/favicon.ico", http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
http.ServeFile(w, req, filepath.Join(uiPath, "favicon.ico"))
}))
r.Get("/app/*filepath", route.FileServe(filepath.Join(uiPath, "app")))
r.Get("/lib/*filepath", route.FileServe(filepath.Join(uiPath, "lib")))
r.Post("/-/reload", http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
errc := make(chan error)
defer close(errc)
reloadCh <- errc
if err := <-errc; err != nil {
http.Error(w, fmt.Sprintf("failed to reload config: %s", err), http.StatusInternalServerError)
}
}))
r.Get("/-/healthy", http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, "OK")
}))
r.Get("/-/ready", http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, "OK")
}))
r.Get("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
r.Post("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
}
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