telegraf/plugins/system/net.go

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package system
import (
"fmt"
"net"
"github.com/influxdb/telegraf/plugins"
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)
type NetIOStats struct {
ps PS
Interfaces []string
}
func (_ *NetIOStats) Description() string {
return "Read metrics about network interface usage"
}
var netSampleConfig = `
# By default, telegraf gathers stats from any up interface (excluding loopback)
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# Setting interfaces will tell it to gather these explicit interfaces,
# regardless of status.
#
# interfaces = ["eth0", ... ]
`
func (_ *NetIOStats) SampleConfig() string {
return netSampleConfig
}
func (s *NetIOStats) Gather(acc plugins.Accumulator) error {
netio, err := s.ps.NetIO()
if err != nil {
return fmt.Errorf("error getting net io info: %s", err)
}
for _, io := range netio {
if len(s.Interfaces) != 0 {
var found bool
for _, name := range s.Interfaces {
if name == io.Name {
found = true
break
}
}
if !found {
continue
}
} else {
iface, err := net.InterfaceByName(io.Name)
if err != nil {
continue
}
if iface.Flags&net.FlagLoopback == net.FlagLoopback {
continue
}
if iface.Flags&net.FlagUp == 0 {
continue
}
}
tags := map[string]string{
"interface": io.Name,
}
acc.Add("bytes_sent", io.BytesSent, tags)
acc.Add("bytes_recv", io.BytesRecv, tags)
acc.Add("packets_sent", io.PacketsSent, tags)
acc.Add("packets_recv", io.PacketsRecv, tags)
acc.Add("err_in", io.Errin, tags)
acc.Add("err_out", io.Errout, tags)
acc.Add("drop_in", io.Dropin, tags)
acc.Add("drop_out", io.Dropout, tags)
}
return nil
}
func init() {
plugins.Add("net", func() plugins.Plugin {
return &NetIOStats{ps: &systemPS{}}
})
}