frp/pkg/metrics/prometheus/server.go

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package prometheus
import (
"github.com/prometheus/client_golang/prometheus"
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"github.com/fatedier/frp/server/metrics"
)
const (
namespace = "frp"
serverSubsystem = "server"
)
var ServerMetrics metrics.ServerMetrics = newServerMetrics()
type serverMetrics struct {
clientCount prometheus.Gauge
proxyCount *prometheus.GaugeVec
connectionCount *prometheus.GaugeVec
trafficIn *prometheus.CounterVec
trafficOut *prometheus.CounterVec
}
func (m *serverMetrics) NewClient() {
m.clientCount.Inc()
}
func (m *serverMetrics) CloseClient() {
m.clientCount.Dec()
}
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func (m *serverMetrics) NewProxy(_ string, proxyType string) {
m.proxyCount.WithLabelValues(proxyType).Inc()
}
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func (m *serverMetrics) CloseProxy(_ string, proxyType string) {
m.proxyCount.WithLabelValues(proxyType).Dec()
}
func (m *serverMetrics) OpenConnection(name string, proxyType string) {
m.connectionCount.WithLabelValues(name, proxyType).Inc()
}
func (m *serverMetrics) CloseConnection(name string, proxyType string) {
m.connectionCount.WithLabelValues(name, proxyType).Dec()
}
func (m *serverMetrics) AddTrafficIn(name string, proxyType string, trafficBytes int64) {
m.trafficIn.WithLabelValues(name, proxyType).Add(float64(trafficBytes))
}
func (m *serverMetrics) AddTrafficOut(name string, proxyType string, trafficBytes int64) {
m.trafficOut.WithLabelValues(name, proxyType).Add(float64(trafficBytes))
}
func newServerMetrics() *serverMetrics {
m := &serverMetrics{
clientCount: prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: namespace,
Subsystem: serverSubsystem,
Name: "client_counts",
Help: "The current client counts of frps",
}),
proxyCount: prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: namespace,
Subsystem: serverSubsystem,
Name: "proxy_counts",
Help: "The current proxy counts",
}, []string{"type"}),
connectionCount: prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: namespace,
Subsystem: serverSubsystem,
Name: "connection_counts",
Help: "The current connection counts",
}, []string{"name", "type"}),
trafficIn: prometheus.NewCounterVec(prometheus.CounterOpts{
Namespace: namespace,
Subsystem: serverSubsystem,
Name: "traffic_in",
Help: "The total in traffic",
}, []string{"name", "type"}),
trafficOut: prometheus.NewCounterVec(prometheus.CounterOpts{
Namespace: namespace,
Subsystem: serverSubsystem,
Name: "traffic_out",
Help: "The total out traffic",
}, []string{"name", "type"}),
}
prometheus.MustRegister(m.clientCount)
prometheus.MustRegister(m.proxyCount)
prometheus.MustRegister(m.connectionCount)
prometheus.MustRegister(m.trafficIn)
prometheus.MustRegister(m.trafficOut)
return m
}