Blackouts
Blackout periods suppress alert notifications and actions for matching alerts during a defined time window. This is useful for planned maintenance windows or known-noisy periods. Navigate to the blackouts page from the main menu under Configuration > Blackouts.
Creating a Blackout
Click the + button to create a new blackout. The following fields are available:
Environment (required) – the environment to apply the blackout to
Resource – match a specific resource
Service – match one or more services
Event – match a specific event name
Group – match an alert group
Tags – match alerts with specific tags
Start time – when the blackout begins (defaults to now)
Duration – how long the blackout lasts, or set an explicit end time
The more fields you specify, the narrower the blackout scope. A blackout with only an environment set will suppress all alerts in that environment.
Note
Alerts that match an active blackout are set to blackout status
and will not trigger any notification plugins. When the blackout
expires, suppressed alerts revert to their previous status.
Listing Blackouts
The blackout list shows all blackouts with the following information:
Environment and matching criteria (resource, service, event, etc.)
Start and End times
Status –
pending(not yet started),active(currently in effect), orexpired(past the end time)Duration – the total blackout duration
Active blackouts are highlighted to make them easy to identify.
Editing and Deleting
Click on a blackout to edit its details, including the matching criteria and time window. Click the delete icon to remove a blackout. Deleting an active blackout immediately stops suppression of matching alerts.