ceremonyclient/go-libp2p/p2p/host/autonat/metrics.go

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2023-08-21 03:50:38 +00:00
package autonat
import (
"time"
"github.com/libp2p/go-libp2p/core/network"
"github.com/libp2p/go-libp2p/p2p/host/autonat/pb"
"github.com/libp2p/go-libp2p/p2p/metricshelper"
"github.com/prometheus/client_golang/prometheus"
)
const metricNamespace = "libp2p_autonat"
var (
reachabilityStatus = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: metricNamespace,
Name: "reachability_status",
Help: "Current node reachability",
},
)
reachabilityStatusConfidence = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: metricNamespace,
Name: "reachability_status_confidence",
Help: "Node reachability status confidence",
},
)
receivedDialResponseTotal = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: metricNamespace,
Name: "received_dial_response_total",
Help: "Count of dial responses for client",
},
[]string{"response_status"},
)
outgoingDialResponseTotal = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: metricNamespace,
Name: "outgoing_dial_response_total",
Help: "Count of dial responses for server",
},
[]string{"response_status"},
)
outgoingDialRefusedTotal = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: metricNamespace,
Name: "outgoing_dial_refused_total",
Help: "Count of dial requests refused by server",
},
[]string{"refusal_reason"},
)
nextProbeTimestamp = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: metricNamespace,
Name: "next_probe_timestamp",
Help: "Time of next probe",
},
)
collectors = []prometheus.Collector{
reachabilityStatus,
reachabilityStatusConfidence,
receivedDialResponseTotal,
outgoingDialResponseTotal,
outgoingDialRefusedTotal,
nextProbeTimestamp,
}
)
type MetricsTracer interface {
ReachabilityStatus(status network.Reachability)
ReachabilityStatusConfidence(confidence int)
ReceivedDialResponse(status pb.Message_ResponseStatus)
OutgoingDialResponse(status pb.Message_ResponseStatus)
OutgoingDialRefused(reason string)
NextProbeTime(t time.Time)
}
func getResponseStatus(status pb.Message_ResponseStatus) string {
var s string
switch status {
case pb.Message_OK:
s = "ok"
case pb.Message_E_DIAL_ERROR:
s = "dial error"
case pb.Message_E_DIAL_REFUSED:
s = "dial refused"
case pb.Message_E_BAD_REQUEST:
s = "bad request"
case pb.Message_E_INTERNAL_ERROR:
s = "internal error"
default:
s = "unknown"
}
return s
}
const (
rate_limited = "rate limited"
dial_blocked = "dial blocked"
no_valid_address = "no valid address"
)
type metricsTracer struct{}
var _ MetricsTracer = &metricsTracer{}
type metricsTracerSetting struct {
reg prometheus.Registerer
}
type MetricsTracerOption func(*metricsTracerSetting)
func WithRegisterer(reg prometheus.Registerer) MetricsTracerOption {
return func(s *metricsTracerSetting) {
if reg != nil {
s.reg = reg
}
}
}
func NewMetricsTracer(opts ...MetricsTracerOption) MetricsTracer {
setting := &metricsTracerSetting{reg: prometheus.DefaultRegisterer}
for _, opt := range opts {
opt(setting)
}
metricshelper.RegisterCollectors(setting.reg, collectors...)
return &metricsTracer{}
}
func (mt *metricsTracer) ReachabilityStatus(status network.Reachability) {
reachabilityStatus.Set(float64(status))
}
func (mt *metricsTracer) ReachabilityStatusConfidence(confidence int) {
reachabilityStatusConfidence.Set(float64(confidence))
}
func (mt *metricsTracer) ReceivedDialResponse(status pb.Message_ResponseStatus) {
tags := metricshelper.GetStringSlice()
defer metricshelper.PutStringSlice(tags)
*tags = append(*tags, getResponseStatus(status))
receivedDialResponseTotal.WithLabelValues(*tags...).Inc()
}
func (mt *metricsTracer) OutgoingDialResponse(status pb.Message_ResponseStatus) {
tags := metricshelper.GetStringSlice()
defer metricshelper.PutStringSlice(tags)
*tags = append(*tags, getResponseStatus(status))
outgoingDialResponseTotal.WithLabelValues(*tags...).Inc()
}
func (mt *metricsTracer) OutgoingDialRefused(reason string) {
tags := metricshelper.GetStringSlice()
defer metricshelper.PutStringSlice(tags)
*tags = append(*tags, reason)
outgoingDialRefusedTotal.WithLabelValues(*tags...).Inc()
}
func (mt *metricsTracer) NextProbeTime(t time.Time) {
nextProbeTimestamp.Set(float64(t.Unix()))
}