mirror of
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102 lines
2.7 KiB
Go
102 lines
2.7 KiB
Go
package notifiers
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import (
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"encoding/json"
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"time"
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"github.com/grafana/grafana/pkg/bus"
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"github.com/grafana/grafana/pkg/log"
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"github.com/grafana/grafana/pkg/metrics"
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m "github.com/grafana/grafana/pkg/models"
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"github.com/grafana/grafana/pkg/services/alerting"
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"github.com/grafana/grafana/pkg/setting"
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)
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func init() {
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alerting.RegisterNotifier("slack", NewSlackNotifier)
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}
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func NewSlackNotifier(model *m.AlertNotification) (alerting.Notifier, error) {
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url := model.Settings.Get("url").MustString()
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if url == "" {
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return nil, alerting.ValidationError{Reason: "Could not find url property in settings"}
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}
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return &SlackNotifier{
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NotifierBase: NewNotifierBase(model.Name, model.Type, model.Settings),
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Url: url,
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log: log.New("alerting.notifier.slack"),
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}, nil
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}
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type SlackNotifier struct {
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NotifierBase
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Url string
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log log.Logger
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}
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func (this *SlackNotifier) Notify(context *alerting.EvalContext) {
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this.log.Info("Executing slack notification", "ruleId", context.Rule.Id, "notification", this.Name)
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metrics.M_Alerting_Notification_Sent_Slack.Inc(1)
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ruleUrl, err := context.GetRuleUrl()
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if err != nil {
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this.log.Error("Failed get rule link", "error", err)
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return
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}
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fields := make([]map[string]interface{}, 0)
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fieldLimitCount := 4
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for index, evt := range context.EvalMatches {
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fields = append(fields, map[string]interface{}{
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"title": evt.Metric,
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"value": evt.Value,
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"short": true,
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})
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if index > fieldLimitCount {
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break
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}
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}
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if context.Error != nil {
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fields = append(fields, map[string]interface{}{
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"title": "Error message",
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"value": context.Error.Error(),
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"short": false,
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})
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}
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message := ""
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if context.Rule.State != m.AlertStateOK { //dont add message when going back to alert state ok.
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message = context.Rule.Message
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}
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body := map[string]interface{}{
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"attachments": []map[string]interface{}{
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{
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"color": context.GetStateModel().Color,
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"title": context.GetNotificationTitle(),
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"title_link": ruleUrl,
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"text": message,
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"fields": fields,
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"image_url": context.ImagePublicUrl,
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"footer": "Grafana v" + setting.BuildVersion,
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"footer_icon": "http://grafana.org/assets/img/fav32.png",
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"ts": time.Now().Unix(),
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//"pretext": "Optional text that appears above the attachment block",
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// "author_name": "Bobby Tables",
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// "author_link": "http://flickr.com/bobby/",
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// "author_icon": "http://flickr.com/icons/bobby.jpg",
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// "thumb_url": "http://example.com/path/to/thumb.png",
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},
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},
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}
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data, _ := json.Marshal(&body)
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cmd := &m.SendWebhook{Url: this.Url, Body: string(data)}
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if err := bus.Dispatch(cmd); err != nil {
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this.log.Error("Failed to send slack notification", "error", err, "webhook", this.Name)
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}
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}
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