log: add klog/v2

Fixes #924

Signed-off-by: Pires <pjpires@gmail.com>

log/logrus/logrus.go

@@ -22,27 +22,27 @@ import (
 	"github.com/virtual-kubelet/virtual-kubelet/log"
 )
 
-// Adapter implements the `log.Logger` interface for logrus
-type Adapter struct {
+// adapter implements the `log.Logger` interface for logrus
+type adapter struct {
 	*logrus.Entry
 }
 
 // FromLogrus creates a new `log.Logger` from the provided entry
 func FromLogrus(entry *logrus.Entry) log.Logger {
-	return &Adapter{entry}
+	return &adapter{entry}
 }
 
 // WithField adds a field to the log entry.
-func (l *Adapter) WithField(key string, val interface{}) log.Logger {
+func (l *adapter) WithField(key string, val interface{}) log.Logger {
 	return FromLogrus(l.Entry.WithField(key, val))
 }
 
 // WithFields adds multiple fields to a log entry.
-func (l *Adapter) WithFields(f log.Fields) log.Logger {
+func (l *adapter) WithFields(f log.Fields) log.Logger {
 	return FromLogrus(l.Entry.WithFields(logrus.Fields(f)))
 }
 
 // WithError adds an error to the log entry
-func (l *Adapter) WithError(err error) log.Logger {
+func (l *adapter) WithError(err error) log.Logger {
 	return FromLogrus(l.Entry.WithError(err))
 }