Add some tee logging to the logger

pkg/logger/logger.go

@@ -56,7 +56,7 @@ func (l *pipeLogOuput) Output(calldepth int, logline string) error {
 	// TODO: Pipe logs downstream to a file
 	// TODO: Do we need to buffer the logs and flush them periodically,
 	// or will klog do this for us?
-	fmt.Println(logline)
+	fmt.Println("TEE'd LOG: ", logline)
 	return nil
 }
 
@@ -77,16 +77,36 @@ type logger struct {
 var _ logr.LogSink = &logger{}
 var _ logr.CallDepthLogSink = &logger{}
 
+// Tee logs downstream
+// Copied from stdr.go
+func (l logger) teeInfo(level int, msg string, kvList ...interface{}) {
+	prefix, args := l.FormatInfo(level, msg, kvList)
+	if prefix != "" {
+		args = prefix + ": " + args
+	}
+	_ = l.std.Output(l.Formatter.GetDepth()+1, args)
+}
+
+func (l logger) teeError(err error, msg string, kvList ...interface{}) {
+	prefix, args := l.FormatError(err, msg, kvList)
+	if prefix != "" {
+		args = prefix + ": " + args
+	}
+	_ = l.std.Output(l.Formatter.GetDepth()+1, args)
+}
+
 func (l logger) Enabled(level int) bool {
 	return l.verbosity >= level
 }
 
 func (l logger) Info(level int, msg string, kvList ...interface{}) {
 	l.lgr.GetSink().Info(level, msg, kvList...)
+	l.teeInfo(level, msg, kvList...)
 }
 
 func (l logger) Error(err error, msg string, kvList ...interface{}) {
 	l.lgr.GetSink().Error(err, msg, kvList...)
+	l.teeError(err, msg, kvList...)
 }
 
 func (l logger) WithName(name string) logr.LogSink {