telegraf/plugins/inputs/webhooks/webhooks.go

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package webhooks
import (
"fmt"
"log"
"net"
"net/http"
"reflect"
"github.com/gorilla/mux"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/inputs"
"github.com/influxdata/telegraf/plugins/inputs/webhooks/filestack"
"github.com/influxdata/telegraf/plugins/inputs/webhooks/github"
"github.com/influxdata/telegraf/plugins/inputs/webhooks/mandrill"
"github.com/influxdata/telegraf/plugins/inputs/webhooks/papertrail"
"github.com/influxdata/telegraf/plugins/inputs/webhooks/rollbar"
)
type Webhook interface {
Register(router *mux.Router, acc telegraf.Accumulator)
}
func init() {
inputs.Add("webhooks", func() telegraf.Input { return NewWebhooks() })
}
type Webhooks struct {
ServiceAddress string
Github *github.GithubWebhook
Filestack *filestack.FilestackWebhook
Mandrill *mandrill.MandrillWebhook
Rollbar *rollbar.RollbarWebhook
Papertrail *papertrail.PapertrailWebhook
srv *http.Server
}
func NewWebhooks() *Webhooks {
return &Webhooks{}
}
func (wb *Webhooks) SampleConfig() string {
return `
## Address and port to host Webhook listener on
service_address = ":1619"
[inputs.webhooks.filestack]
path = "/filestack"
[inputs.webhooks.github]
path = "/github"
# secret = ""
[inputs.webhooks.mandrill]
path = "/mandrill"
[inputs.webhooks.rollbar]
path = "/rollbar"
[inputs.webhooks.papertrail]
path = "/papertrail"
`
}
func (wb *Webhooks) Description() string {
return "A Webhooks Event collector"
}
func (wb *Webhooks) Gather(_ telegraf.Accumulator) error {
return nil
}
// Looks for fields which implement Webhook interface
func (wb *Webhooks) AvailableWebhooks() []Webhook {
webhooks := make([]Webhook, 0)
s := reflect.ValueOf(wb).Elem()
for i := 0; i < s.NumField(); i++ {
f := s.Field(i)
if !f.CanInterface() {
continue
}
if wbPlugin, ok := f.Interface().(Webhook); ok {
if !reflect.ValueOf(wbPlugin).IsNil() {
webhooks = append(webhooks, wbPlugin)
}
}
}
return webhooks
}
func (wb *Webhooks) Start(acc telegraf.Accumulator) error {
r := mux.NewRouter()
for _, webhook := range wb.AvailableWebhooks() {
webhook.Register(r, acc)
}
wb.srv = &http.Server{Handler: r}
ln, err := net.Listen("tcp", fmt.Sprintf("%s", wb.ServiceAddress))
if err != nil {
log.Fatalf("E! Error starting server: %v", err)
return err
}
go func() {
if err := wb.srv.Serve(ln); err != nil {
if err != http.ErrServerClosed {
acc.AddError(fmt.Errorf("E! Error listening: %v", err))
}
}
}()
log.Printf("I! Started the webhooks service on %s\n", wb.ServiceAddress)
return nil
}
func (rb *Webhooks) Stop() {
rb.srv.Close()
log.Println("I! Stopping the Webhooks service")
}