Add Inner Ring code

lib/peers/metrics.go

@@ -1,45 +0,0 @@
-package peers
-
-import (
-	"github.com/prometheus/client_golang/prometheus"
-	"google.golang.org/grpc/connectivity"
-)
-
-const stateLabel = "state"
-
-var grpcConnections = prometheus.NewGaugeVec(
-	prometheus.GaugeOpts{
-		Help:      "gRPC connections",
-		Name:      "grpc_connections",
-		Namespace: "neofs",
-	},
-	[]string{stateLabel},
-)
-
-var conStates = []connectivity.State{
-	connectivity.Idle,
-	connectivity.Connecting,
-	connectivity.Ready,
-	connectivity.TransientFailure,
-	connectivity.Shutdown,
-}
-
-func updateMetrics(items map[connectivity.State]float64) {
-	for _, state := range conStates {
-		grpcConnections.With(prometheus.Labels{
-			stateLabel: state.String(),
-		}).Set(items[state])
-	}
-}
-
-func init() {
-	prometheus.MustRegister(
-		grpcConnections,
-	)
-
-	for _, state := range conStates {
-		grpcConnections.With(prometheus.Labels{
-			stateLabel: state.String(),
-		}).Set(0)
-	}
-}