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package main
import (
"log"
"net/http"
"os"
"time"
"github.com/facebookgo/httpdown"
)
var ReadyValue = http.StatusOK
var LiveValue = http.StatusOK
var hostname string
func readinessCheck(w http.ResponseWriter, r *http.Request) {
w.Header().Set("responding-pod", hostname)
http.Error(w, "", ReadyValue)
}
func livenessCheck(w http.ResponseWriter, r *http.Request) {
w.Header().Set("responding-pod", hostname)
http.Error(w, "", LiveValue)
}
func rootHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("responding-pod", hostname)
w.Fprintf(w, "%s", "I'm serving traffic!")
}
func main() {
// Force log output to stdout for Docker
log.SetOutput(os.Stdout)
// Delay for startup
time.Sleep(1 * time.Second)
hostname, _ = os.Hostname()
log.Println("Service started on port 80")
mux := http.NewServeMux()
mux.HandleFunc("/", rootHandler)
mux.HandleFunc("/ping", livenessCheck)
mux.HandleFunc("/ready", readinessCheck)
mux.HandleFunc("/makeNotReady", makeNotReady)
mux.HandleFunc("/makePodReady", makePodReady)
server := &http.Server{
Addr: ":80",
Handler: mux,
}
hd := &httpdown.HTTP{
StopTimeout: 10 * time.Second,
KillTimeout: 1 * time.Second,
}
if err := httpdown.ListenAndServe(server, hd); err != nil {
log.Fatalln(err)
}
}
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