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