telegraf/plugins/inputs/system/net.go

111 lines
2.2 KiB
Go

package system
import (
"fmt"
"net"
"strings"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/inputs"
)
type NetIOStats struct {
ps PS
skipChecks bool
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)
### 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 telegraf.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 if !s.skipChecks {
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,
}
fields := map[string]interface{}{
"bytes_sent": io.BytesSent,
"bytes_recv": io.BytesRecv,
"packets_sent": io.PacketsSent,
"packets_recv": io.PacketsRecv,
"err_in": io.Errin,
"err_out": io.Errout,
"drop_in": io.Dropin,
"drop_out": io.Dropout,
}
acc.AddFields("net", fields, tags)
}
// Get system wide stats for different network protocols
// (ignore these stats if the call fails)
netprotos, _ := s.ps.NetProto()
fields := make(map[string]interface{})
for _, proto := range netprotos {
for stat, value := range proto.Stats {
name := fmt.Sprintf("%s_%s", strings.ToLower(proto.Protocol),
strings.ToLower(stat))
fields[name] = value
}
}
tags := map[string]string{
"interface": "all",
}
acc.AddFields("net", fields, tags)
return nil
}
func init() {
inputs.Add("net", func() telegraf.Input {
return &NetIOStats{ps: &systemPS{}}
})
}