130 lines
3.1 KiB
Go
130 lines
3.1 KiB
Go
// Copyright 2015 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"flag"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"github.com/prometheus/common/log"
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"github.com/prometheus/common/route"
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"github.com/prometheus/alertmanager/config"
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"github.com/prometheus/alertmanager/notify"
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"github.com/prometheus/alertmanager/provider"
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"github.com/prometheus/alertmanager/types"
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)
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var (
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configFile = flag.String("config.file", "config.yml", "The configuration file")
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listenAddress = flag.String("web.listen-address", ":9093", "Address to listen on for the web interface and API.")
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)
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func main() {
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flag.Parse()
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data := provider.NewMemData()
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alerts := provider.NewMemAlerts(data)
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notifies := provider.NewMemNotifies(data)
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silences := provider.NewMemSilences()
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inhibitor := &Inhibitor{alerts: alerts}
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routedNotifier := notify.NewRoutedNotifier(func(confs []*config.NotificationConfig) map[string]notify.Notifier {
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res := notify.Build(confs)
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for name, n := range res {
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res[name] = ¬ify.LogNotifier{
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Log: log.With("notifier", "dedup"),
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Notifier: notify.NewDedupingNotifier(notifies, n),
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}
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}
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return res
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})
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var notifier notify.Notifier
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notifier = ¬ify.LogNotifier{
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Log: log.With("notifier", "routed"),
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Notifier: routedNotifier,
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}
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notifier = ¬ify.MutingNotifier{
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Notifier: notifier,
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Muter: inhibitor,
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}
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notifier = ¬ify.LogNotifier{
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Log: log.With("notifier", "inhibit"),
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Notifier: notifier,
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}
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notifier = ¬ify.MutingNotifier{
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Notifier: notifier,
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Muter: silences,
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}
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notifier = ¬ify.LogNotifier{
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Log: log.With("notifier", "silencer"),
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Notifier: notifier,
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}
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disp := NewDispatcher(alerts, notifier)
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if !reloadConfig(*configFile, disp, routedNotifier, inhibitor) {
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os.Exit(1)
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}
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go disp.Run()
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defer disp.Stop()
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router := route.New()
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NewAPI(router.WithPrefix("/api"), alerts, silences)
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go http.ListenAndServe(*listenAddress, router)
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var (
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hup = make(chan os.Signal)
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term = make(chan os.Signal)
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)
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signal.Notify(hup, syscall.SIGHUP)
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signal.Notify(term, os.Interrupt, syscall.SIGTERM)
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go func() {
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for range hup {
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reloadConfig(*configFile, disp, routedNotifier, inhibitor)
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}
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}()
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<-term
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log.Infoln("Received SIGTERM, exiting gracefully...")
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os.Exit(0)
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}
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func reloadConfig(filename string, rls ...types.Reloadable) (success bool) {
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log.Infof("Loading configuration file %s", filename)
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conf, err := config.LoadFile(filename)
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if err != nil {
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log.Errorf("Couldn't load configuration (-config.file=%s): %v", filename, err)
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return false
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}
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success = true
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for _, rl := range rls {
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success = success && rl.ApplyConfig(conf)
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}
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return success
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}
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