Add prometheus metrics

go.mod

@@ -3,10 +3,21 @@ module github.com/thor77/rtmp2hls
 go 1.18
 
 require (
-	github.com/BurntSushi/toml v1.1.0
+	github.com/BurntSushi/toml v1.2.0
 	github.com/grafov/m3u8 v0.11.1
 	github.com/nareix/joy4 v0.0.0-20200507095837-05a4ffbb5369
-	github.com/sirupsen/logrus v1.8.1
+	github.com/prometheus/client_golang v1.13.0
+	github.com/sirupsen/logrus v1.9.0
 )
 
-require golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 // indirect
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+)