switch to go-kit/log (#1575)

Signed-off-by: yeya24 <yb532204897@gmail.com>

collector/nfsd_linux.go

@@ -17,8 +17,9 @@ import (
 	"fmt"
 	"os"
 
+	"github.com/go-kit/kit/log"
+	"github.com/go-kit/kit/log/level"
 	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/common/log"
 	"github.com/prometheus/procfs/nfs"
 )
 
@@ -27,6 +28,7 @@ import (
 type nfsdCollector struct {
 	fs           nfs.FS
 	requestsDesc *prometheus.Desc
+	logger       log.Logger
 }
 
 func init() {
@@ -38,7 +40,7 @@ const (
 )
 
 // NewNFSdCollector returns a new Collector exposing /proc/net/rpc/nfsd statistics.
-func NewNFSdCollector() (Collector, error) {
+func NewNFSdCollector(logger log.Logger) (Collector, error) {
 	fs, err := nfs.NewFS(*procPath)
 	if err != nil {
 		return nil, fmt.Errorf("failed to open procfs: %w", err)
@@ -51,6 +53,7 @@ func NewNFSdCollector() (Collector, error) {
 			"Total number NFSd Requests by method and protocol.",
 			[]string{"proto", "method"}, nil,
 		),
+		logger: logger,
 	}, nil
 }
 
@@ -59,7 +62,7 @@ func (c *nfsdCollector) Update(ch chan<- prometheus.Metric) error {
 	stats, err := c.fs.ServerRPCStats()
 	if err != nil {
 		if os.IsNotExist(err) {
-			log.Debugf("Not collecting NFSd metrics: %s", err)
+			level.Debug(c.logger).Log("msg", "Not collecting NFSd metrics", "err", err)
 			return nil
 		}
 		return fmt.Errorf("failed to retrieve nfsd stats: %w", err)