explicitly set no-op logger for controller-runtime to avoid warning m…

…essage

cmd/provider/main.go

@@ -17,6 +17,7 @@ limitations under the License.
 package main
 
 import (
+	"io"
 	"os"
 	"path/filepath"
 	"time"
@@ -63,6 +64,9 @@ func main() {
 		// *very* verbose even at info level, so we only provide it a real
 		// logger when we're running in debug mode.
 		ctrl.SetLogger(zl)
+	} else {
+		//  explicitly  provide a no-op logger by default, otherwise controller-runtime gives a warning
+		ctrl.SetLogger(zap.New(zap.WriteTo(io.Discard)))
 	}
 
 	cfg, err := ctrl.GetConfig()