grafana/pkg/services/alerting/notifiers/webhook.go
Dominic Miglar 32d6740b8f Alerting: Also include configured AlertRuleTags in Webhooks (#18233)
* added alert rule tags in webhook notifications

* fix: don't include whole list of Tag objects but only key/value pairs in Webhook JSON

* marked webhook alerts to support alert rule tags
2019-08-03 17:00:40 +02:00

122 lines
3.6 KiB
Go

package notifiers
import (
"github.com/grafana/grafana/pkg/bus"
"github.com/grafana/grafana/pkg/components/simplejson"
"github.com/grafana/grafana/pkg/infra/log"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/services/alerting"
)
func init() {
alerting.RegisterNotifier(&alerting.NotifierPlugin{
Type: "webhook",
Name: "webhook",
Description: "Sends HTTP POST request to a URL",
Factory: NewWebHookNotifier,
OptionsTemplate: `
<h3 class="page-heading">Webhook settings</h3>
<div class="gf-form">
<span class="gf-form-label width-10">Url</span>
<input type="text" required class="gf-form-input max-width-26" ng-model="ctrl.model.settings.url"></input>
</div>
<div class="gf-form">
<span class="gf-form-label width-10">Http Method</span>
<div class="gf-form-select-wrapper width-14">
<select class="gf-form-input" ng-model="ctrl.model.settings.httpMethod" ng-options="t for t in ['POST', 'PUT']">
</select>
</div>
</div>
<div class="gf-form">
<span class="gf-form-label width-10">Username</span>
<input type="text" class="gf-form-input max-width-14" ng-model="ctrl.model.settings.username"></input>
</div>
<div class="gf-form">
<span class="gf-form-label width-10">Password</span>
<input type="text" class="gf-form-input max-width-14" ng-model="ctrl.model.settings.password"></input>
</div>
`,
})
}
// NewWebHookNotifier is the constructor for
// the WebHook notifier.
func NewWebHookNotifier(model *models.AlertNotification) (alerting.Notifier, error) {
url := model.Settings.Get("url").MustString()
if url == "" {
return nil, alerting.ValidationError{Reason: "Could not find url property in settings"}
}
return &WebhookNotifier{
NotifierBase: NewNotifierBase(model),
URL: url,
User: model.Settings.Get("username").MustString(),
Password: model.Settings.Get("password").MustString(),
HTTPMethod: model.Settings.Get("httpMethod").MustString("POST"),
log: log.New("alerting.notifier.webhook"),
}, nil
}
// WebhookNotifier is responsible for sending
// alert notifications as webhooks.
type WebhookNotifier struct {
NotifierBase
URL string
User string
Password string
HTTPMethod string
log log.Logger
}
// Notify send alert notifications as
// webhook as http requests.
func (wn *WebhookNotifier) Notify(evalContext *alerting.EvalContext) error {
wn.log.Info("Sending webhook")
bodyJSON := simplejson.New()
bodyJSON.Set("title", evalContext.GetNotificationTitle())
bodyJSON.Set("ruleId", evalContext.Rule.ID)
bodyJSON.Set("ruleName", evalContext.Rule.Name)
bodyJSON.Set("state", evalContext.Rule.State)
bodyJSON.Set("evalMatches", evalContext.EvalMatches)
tags := make(map[string]string)
for _, tag := range evalContext.Rule.AlertRuleTags {
tags[tag.Key] = tag.Value
}
bodyJSON.Set("tags", tags)
ruleURL, err := evalContext.GetRuleURL()
if err == nil {
bodyJSON.Set("ruleUrl", ruleURL)
}
if evalContext.ImagePublicURL != "" {
bodyJSON.Set("imageUrl", evalContext.ImagePublicURL)
}
if evalContext.Rule.Message != "" {
bodyJSON.Set("message", evalContext.Rule.Message)
}
body, _ := bodyJSON.MarshalJSON()
cmd := &models.SendWebhookSync{
Url: wn.URL,
User: wn.User,
Password: wn.Password,
Body: string(body),
HttpMethod: wn.HTTPMethod,
}
if err := bus.DispatchCtx(evalContext.Ctx, cmd); err != nil {
wn.log.Error("Failed to send webhook", "error", err, "webhook", wn.Name)
return err
}
return nil
}