neoneo-go/pkg/network/metrics/metrics.go

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package metrics
import (
"context"
"net/http"
log "github.com/sirupsen/logrus"
)
// Service serves metrics.
type Service struct {
*http.Server
config Config
serviceType string
}
// Config config used for monitoring.
type Config struct {
Enabled bool `yaml:"Enabled"`
Address string `yaml:"Address"`
Port string `yaml:"Port"`
}
// Start runs http service with exposed endpoint on configured port.
func (ms *Service) Start() {
if ms.config.Enabled {
log.WithFields(log.Fields{
"endpoint": ms.Addr,
"service": ms.serviceType,
}).Info("service running")
err := ms.ListenAndServe()
if err != nil && err != http.ErrServerClosed {
log.Warnf("%s service couldn't start on configured port", ms.serviceType)
}
} else {
log.Infof("%s service hasn't started since it's disabled", ms.serviceType)
}
}
// ShutDown stops service.
func (ms *Service) ShutDown() {
log.WithFields(log.Fields{
"endpoint": ms.Addr,
"service": ms.serviceType,
}).Info("shutting down service")
err := ms.Shutdown(context.Background())
if err != nil {
log.Fatalf("can't shut down %s service", ms.serviceType)
}
}