Use klog as controller-runtime default logger

pkg/log/log.go

@@ -38,6 +38,8 @@ import (
 	"sync"
 	"time"
 
+	"k8s.io/klog/v2"
+
 	"github.com/go-logr/logr"
 )
 
@@ -81,7 +83,8 @@ var (
 // set to a NullLogSink.
 var (
 	dlog = NewDelegatingLogSink(NullLogSink{})
-	Log  = logr.New(dlog)
+	// Log uses `klog` as the controller-runtime default logger.
+	Log = klog.NewKlogr()
 )
 
 // FromContext returns a logger with predefined values from a context.Context.

pkg/log/log_test.go

@@ -100,15 +100,16 @@ var _ = Describe("logging", func() {
 	Describe("top-level logger", func() {
 		It("hold newly created loggers until a logger is set", func() {
 			By("grabbing a new sub-logger and logging to it")
-			l1 := Log.WithName("runtimeLog").WithValues("newtag", "newvalue1")
+			lgr := logr.New(dlog)
+			l1 := lgr.WithName("runtimeLog").WithValues("newtag", "newvalue1")
 			l1.Info("before msg")
 
 			By("actually setting the logger")
 			logger := &fakeLogger{root: &fakeLoggerRoot{}}
 			SetLogger(logr.New(logger))
 
 			By("grabbing another sub-logger and logging to both loggers")
-			l2 := Log.WithName("runtimeLog").WithValues("newtag", "newvalue2")
+			l2 := lgr.WithName("runtimeLog").WithValues("newtag", "newvalue2")
 			l1.Info("after msg 1")
 			l2.Info("after msg 2")