telegraf/plugins/inputs/webhooks/webhooks.go

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package webhooks
import (
"fmt"
"log"
"net/http"
"reflect"
"github.com/gorilla/mux"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/inputs"
"github.com/influxdata/telegraf/plugins/inputs/webhooks/github"
"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
Rollbar *rollbar.RollbarWebhook
}
func NewWebhooks() *Webhooks {
return &Webhooks{}
}
func (wb *Webhooks) SampleConfig() string {
return `
## Address and port to host Webhook listener on
service_address = ":1619"
[inputs.webhooks.github]
path = "/github"
[inputs.webhooks.rollbar]
path = "/rollbar"
`
}
func (wb *Webhooks) Description() string {
return "A Webhooks Event collector"
}
func (wb *Webhooks) Gather(_ telegraf.Accumulator) error {
return nil
}
func (wb *Webhooks) Listen(acc telegraf.Accumulator) {
r := mux.NewRouter()
for _, webhook := range wb.AvailableWebhooks() {
webhook.Register(r, acc)
}
err := http.ListenAndServe(fmt.Sprintf("%s", wb.ServiceAddress), r)
if err != nil {
log.Printf("Error starting server: %v", err)
}
}
// 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 {
go wb.Listen(acc)
log.Printf("Started the webhooks service on %s\n", wb.ServiceAddress)
return nil
}
func (rb *Webhooks) Stop() {
log.Println("Stopping the Webhooks service")
}