96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
package nebula
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"log"
|
|
"net"
|
|
"net/http"
|
|
"time"
|
|
|
|
graphite "github.com/cyberdelia/go-metrics-graphite"
|
|
mp "github.com/nbrownus/go-metrics-prometheus"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/prometheus/client_golang/prometheus/promhttp"
|
|
"github.com/rcrowley/go-metrics"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
func startStats(l *logrus.Logger, c *Config, configTest bool) error {
|
|
mType := c.GetString("stats.type", "")
|
|
if mType == "" || mType == "none" {
|
|
return nil
|
|
}
|
|
|
|
interval := c.GetDuration("stats.interval", 0)
|
|
if interval == 0 {
|
|
return fmt.Errorf("stats.interval was an invalid duration: %s", c.GetString("stats.interval", ""))
|
|
}
|
|
|
|
switch mType {
|
|
case "graphite":
|
|
startGraphiteStats(l, interval, c, configTest)
|
|
case "prometheus":
|
|
startPrometheusStats(l, interval, c, configTest)
|
|
default:
|
|
return fmt.Errorf("stats.type was not understood: %s", mType)
|
|
}
|
|
|
|
metrics.RegisterDebugGCStats(metrics.DefaultRegistry)
|
|
metrics.RegisterRuntimeMemStats(metrics.DefaultRegistry)
|
|
|
|
go metrics.CaptureDebugGCStats(metrics.DefaultRegistry, interval)
|
|
go metrics.CaptureRuntimeMemStats(metrics.DefaultRegistry, interval)
|
|
|
|
return nil
|
|
}
|
|
|
|
func startGraphiteStats(l *logrus.Logger, i time.Duration, c *Config, configTest bool) error {
|
|
proto := c.GetString("stats.protocol", "tcp")
|
|
host := c.GetString("stats.host", "")
|
|
if host == "" {
|
|
return errors.New("stats.host can not be empty")
|
|
}
|
|
|
|
prefix := c.GetString("stats.prefix", "nebula")
|
|
addr, err := net.ResolveTCPAddr(proto, host)
|
|
if err != nil {
|
|
return fmt.Errorf("error while setting up graphite sink: %s", err)
|
|
}
|
|
|
|
l.Infof("Starting graphite. Interval: %s, prefix: %s, addr: %s", i, prefix, addr)
|
|
if !configTest {
|
|
go graphite.Graphite(metrics.DefaultRegistry, i, prefix, addr)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func startPrometheusStats(l *logrus.Logger, i time.Duration, c *Config, configTest bool) error {
|
|
namespace := c.GetString("stats.namespace", "")
|
|
subsystem := c.GetString("stats.subsystem", "")
|
|
|
|
listen := c.GetString("stats.listen", "")
|
|
if listen == "" {
|
|
return fmt.Errorf("stats.listen should not be empty")
|
|
}
|
|
|
|
path := c.GetString("stats.path", "")
|
|
if path == "" {
|
|
return fmt.Errorf("stats.path should not be empty")
|
|
}
|
|
|
|
pr := prometheus.NewRegistry()
|
|
pClient := mp.NewPrometheusProvider(metrics.DefaultRegistry, namespace, subsystem, pr, i)
|
|
go pClient.UpdatePrometheusMetrics()
|
|
|
|
if !configTest {
|
|
go func() {
|
|
l.Infof("Prometheus stats listening on %s at %s", listen, path)
|
|
http.Handle(path, promhttp.HandlerFor(pr, promhttp.HandlerOpts{ErrorLog: l}))
|
|
log.Fatal(http.ListenAndServe(listen, nil))
|
|
}()
|
|
}
|
|
|
|
return nil
|
|
}
|