package system import ( "fmt" "net" "github.com/influxdb/tivan/plugins" ) type NetIOStats struct { ps PS Interfaces []string } func (_ *NetIOStats) Description() string { return "Read metrics about network interface usage" } var netSampleConfig = ` # By default, tivan 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 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{}} }) }