package riemann import ( "errors" "fmt" "os" "github.com/amir/raidman" "github.com/influxdata/telegraf" "github.com/influxdata/telegraf/plugins/outputs" ) type Riemann struct { URL string Transport string client *raidman.Client } var sampleConfig = ` # URL of server url = "localhost:5555" # transport protocol to use either tcp or udp transport = "tcp" ` func (r *Riemann) Connect() error { c, err := raidman.Dial(r.Transport, r.URL) if err != nil { return err } r.client = c return nil } func (r *Riemann) Close() error { r.client.Close() return nil } func (r *Riemann) SampleConfig() string { return sampleConfig } func (r *Riemann) Description() string { return "Configuration for the Riemann server to send metrics to" } func (r *Riemann) Write(metrics []telegraf.Metric) error { if len(metrics) == 0 { return nil } var events []*raidman.Event for _, p := range metrics { evs := buildEvents(p) for _, ev := range evs { events = append(events, ev) } } var senderr = r.client.SendMulti(events) if senderr != nil { return errors.New(fmt.Sprintf("FAILED to send riemann message: %s\n", senderr)) } return nil } func buildEvents(p telegraf.Metric) []*raidman.Event { events := []*raidman.Event{} for fieldName, value := range p.Fields() { host, ok := p.Tags()["host"] if !ok { hostname, err := os.Hostname() if err != nil { host = "unknown" } else { host = hostname } } event := &raidman.Event{ Host: host, Service: p.Name() + "_" + fieldName, Metric: value, } events = append(events, event) } return events } func init() { outputs.Add("riemann", func() telegraf.Output { return &Riemann{} }) }