frostfs-s3-gw/metrics/gate.go

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package metrics
import (
"net/http"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
const namespace = "frostfs_s3_gw"
type StatisticScraper interface {
Statistic() pool.Statistic
}
type GateMetrics struct {
State stateMetrics
Pool poolMetricsCollector
Billing *billingMetrics
}
func NewGateMetrics(scraper StatisticScraper) *GateMetrics {
stateMetric := newStateMetrics()
stateMetric.register()
poolMetric := newPoolMetricsCollector(scraper)
poolMetric.register()
billingMetric := newBillingMetrics()
billingMetric.register()
return &GateMetrics{
State: *stateMetric,
Pool: *poolMetric,
Billing: billingMetric,
}
}
func (g *GateMetrics) Unregister() {
g.State.unregister()
prometheus.Unregister(&g.Pool)
g.Billing.unregister()
}
func (g *GateMetrics) Handler() http.Handler {
handler := http.NewServeMux()
handler.Handle("/", promhttp.Handler())
handler.Handle("/metrics/billing", promhttp.HandlerFor(g.Billing.registry, promhttp.HandlerOpts{}))
return handler
}