make client-go log to console instead of file (#41)

Co-authored-by: Thomas Dupas <[email protected]>

cmd/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"flag"
+	"k8s.io/klog"
 	"log"
 	"os"
 	"os/signal"
@@ -20,6 +21,12 @@ func main() {
 	// Set logging output to standard console out
 	log.SetOutput(os.Stdout)
 
+	// kubernetes client-go uses klog, which logs to file by default. Change defaults to log to stderr instead of file.
+	klogFlags := flag.NewFlagSet("klog", flag.ExitOnError)
+	klog.InitFlags(klogFlags)
+	logtostderr := klogFlags.Lookup("logtostderr")
+	logtostderr.Value.Set("true")
+
 	sigs := make(chan os.Signal, 1) // Create channel to receive OS signals
 	stop := make(chan struct{})     // Create channel to receive stop signal
 

go.mod

@@ -13,5 +13,6 @@ require (
 	k8s.io/api v0.0.0-20190905160310-fb749d2f1064
 	k8s.io/apimachinery v0.0.0-20190831074630-461753078381
 	k8s.io/client-go v12.0.0+incompatible
+	k8s.io/klog v0.4.0
 	k8s.io/utils v0.0.0-20190829053155-3a4a5477acf8 // indirect
 )