Set up alerts for Prometheus metrics (FREE)

After configuring metrics for your CI/CD environment, you can set up alerting for Prometheus metrics, and trigger actions from alerts to notify your team when environment performance falls outside of the boundaries you set.

Prometheus cluster integrations

Alerts are not supported for Prometheus cluster integrations.

Trigger actions from alerts (ULTIMATE)

• Introduced in GitLab 13.1: incidents are not created automatically by default .
• Mapping common severity values from the alert payload (introduced in GitLab 13.9.

Turn on creating incidents automatically whenever an alert is triggered.

Prerequisites:

• You must have at least the Maintainer role for the project.

To configure the actions:

1. On the top bar, select Main menu > Projects and find your project.
2. On the left sidebar, select Settings > Monitor.
3. Expand the Alerts section, then select the Alert settings tab.
4. Select the Create an incident checkbox.
5. Optional. To customize the incident, from the Incident template, select a template to be appended to the incident summary. If the dropdown list is empty, create an issue template first.
6. Optional. To send an email notification, select the Send a single email notification to Owners and Maintainers for new alerts checkbox.
7. Select Save changes.

Fields in automatically created incidents

Incidents created automatically from an alert are filled with values extracted from the alerts field in the webhook payload:

• Incident author: GitLab Alert Bot

• Incident title: Extracted from the alert payload fields annotations/title, annotations/summary, or labels/alertname.

• Incident description: Extracted from alert payload field annotations/description.

• Alert Summary: A list of properties from the alert's payload.

  • starts_at: Alert start time from the payload's startsAt field
  • full_query: Alert query extracted from the payload's generatorURL field
  • Optional list of attached annotations extracted from annotations/*

• Alert GLFM: GitLab Flavored Markdown from the payload's annotations/gitlab_incident_markdown field.

• Alert severity: Extracted from the alert payload field labels/severity. Maps case-insensitive value to Alert's severity:

  Alert payload	Mapped to alert severity
  Critical	critical, s1, p1, emergency, fatal, or any value not in this list
  High	high, s2, p2, major, page
  Medium	medium, s3, p3, error, alert
  Low	low, s4, p4, warn, warning
  Info	info, s5, p5, debug, information, notice

To further customize the incident, you can add labels, mentions, or any other supported quick action in the selected issue template, which applies to all incidents. To limit quick actions or other information to only specific types of alerts, use the annotations/gitlab_incident_markdown field.

GitLab tags each incident issue with the incident label automatically. If the label does not yet exist, it's created automatically.

Recovery alerts

The alert in GitLab is automatically resolved when Prometheus sends a payload with the field status set to resolved.

You can also configure the associated incident to be closed automatically when the alert resolves.