mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-08-06 09:36:58 +02:00
71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package main
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import (
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"fmt"
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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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"time"
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log "github.com/Sirupsen/logrus"
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"github.com/kubernetes-incubator/external-dns/config"
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"github.com/kubernetes-incubator/external-dns/controller"
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)
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func main() {
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cfg := config.NewConfig()
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cfg.ParseFlags()
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if err := cfg.Validate(); err != nil {
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log.Errorf("config validation failed: %v", err)
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}
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if cfg.LogFormat == "json" {
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log.SetFormatter(&log.JSONFormatter{})
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}
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if cfg.Debug {
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log.SetLevel(log.DebugLevel)
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}
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stopChan := make(chan struct{}, 1)
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go registerHandlers(cfg.HealthPort)
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go handleSigterm(stopChan)
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controller.Run(stopChan)
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for {
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log.Infoln("pod waiting to be deleted")
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time.Sleep(time.Second * 30)
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}
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}
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func registerHandlers(port string) {
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http.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusOK)
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w.Write([]byte("OK"))
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})
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log.Fatal(http.ListenAndServe(fmt.Sprintf(":%s", port), nil))
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}
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func handleSigterm(stopChan chan struct{}) {
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signals := make(chan os.Signal, 1)
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signal.Notify(signals, syscall.SIGTERM)
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<-signals
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log.Infoln("received SIGTERM. Terminating...")
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close(stopChan)
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}
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