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45package main
import (
"fmt"
"log"
"math/rand"
"net/http"
"os"
"time"
)
func init() {
rand.Seed(time.Now().UnixNano())
}
func main() {
log.Print("starting...")
port := os.Getenv("PORT")
if len(port) == 0 {
port = "8080"
}
mux := http.NewServeMux()
info := getEnvInfo()
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "requested: %s %s\n%s", r.Method, r.URL.Path, info)
})
log.Print("using port ", port)
s := &http.Server{
Addr: fmt.Sprintf(":%s", port),
Handler: mux,
}
log.Fatal(s.ListenAndServe())
}
func getEnvInfo() string {
nodeName := os.Getenv("MY_NODE_NAME")
podName := os.Getenv("MY_POD_NAME")
namespace := os.Getenv("MY_POD_NAMESPACE")
ip := os.Getenv("MY_POD_IP")
svc := os.Getenv("MY_POD_SERVICE_ACCOUNT")
tmpl := " node: %s\n pod: %s\n namespace: %s\n IP: %s\n service account: %s\n"
return fmt.Sprintf(tmpl, nodeName, podName, namespace, ip, svc)
}