Grafana OnCall notifications

[ser]

I have successfully deployed Grafana OnCall notifications if someone is interested:

# grafana oncall!
alerting:
  custom:
    url: "https://oncall.example.com/integrations/v1/formatted_webhook/xxxxxxxxxxxxxx/"
    method: "POST"
    body: |
      {
        "title":     "[ENDPOINT_GROUP] ➔ [ENDPOINT_NAME]",
        "message":   "[ALERT_TRIGGERED_OR_RESOLVED]: [ENDPOINT_GROUP] ➔ [ENDPOINT_NAME] ➔ [ALERT_DESCRIPTION]",
        "state":     "[ALERT_TRIGGERED_OR_RESOLVED]",
        "image_url": ""
      }
    headers:
      Content-Type: "application/json"
    send-on-resolved: true
    failure-threshold: 3
    success-threshold: 2
    placeholders:
      ALERT_TRIGGERED_OR_RESOLVED:
        TRIGGERED: "alerting"
        RESOLVED: "ok"

To extend that functionality to be in pair with modern monitoring systems we are waiting for resolving #742 and for #487

More about the OnCall webhooks: https://grafana.com/docs/oncall/latest/integrations/webhook/