package system import ( "bufio" "bytes" "fmt" "github.com/shirou/gopsutil/host" "github.com/shirou/gopsutil/load" "github.com/influxdb/telegraf/plugins" ) type SystemStats struct{} func (_ *SystemStats) Description() string { return "Read metrics about system load & uptime" } func (_ *SystemStats) SampleConfig() string { return "" } func (_ *SystemStats) add(acc plugins.Accumulator, name string, val float64, tags map[string]string) { if val >= 0 { acc.Add(name, val, tags) } } func (_ *SystemStats) Gather(acc plugins.Accumulator) error { loadavg, err := load.LoadAvg() if err != nil { return err } hostinfo, err := host.HostInfo() if err != nil { return err } fields := map[string]interface{}{ "load1": loadavg.Load1, "load5": loadavg.Load5, "load15": loadavg.Load15, "uptime": float64(hostinfo.Uptime), "uptime_format": format_uptime(hostinfo.Uptime), } acc.AddFields("system", fields, nil) return nil } func format_uptime(uptime uint64) string { buf := new(bytes.Buffer) w := bufio.NewWriter(buf) days := uptime / (60 * 60 * 24) if days != 0 { s := "" if days > 1 { s = "s" } fmt.Fprintf(w, "%d day%s, ", days, s) } minutes := uptime / 60 hours := minutes / 60 hours %= 24 minutes %= 60 fmt.Fprintf(w, "%2d:%02d", hours, minutes) w.Flush() return buf.String() } func init() { plugins.Add("system", func() plugins.Plugin { return &SystemStats{} }) }