README.md

Datadog SLO

This module is responsible for creating Datadog Service Level Objectives and their related alerts.

Alerts

Datadog Alerts for SLOs are terraformed through the monitor object.

An SLO can have many thresholds set, but a monitor can only have one. In order to get around this, the module creates Datadog monitors for each threshold within an SLO.

For example

synthetics-slo:
  name: "(SLO) Synthetic Checks"
  type: metric
  query:
    numerator: sum:synthetics.test_runs{status:success}.as_count()
    denominator: sum:synthetics.test_runs{*}.as_count()
  description: |
    Number of Successful Synthetic Checks.
  message: |
    ({stage} {region}) {instance_id} failed a SLO check
  force_delete: true
  validate: true
  thresholds:
  - target: "99.5"
    target_display: "99.50"
    timeframe: "7d"
    warning: "99.9"
    warning_display: "99.90"
  - target: "99"
    target_display: "99.00"
    timeframe: "30d"
    warning: "99.5"
    warning_display: "99.50"
  groups: []
  monitor_ids: []
  tags:
    managedby: terraform

References

• Service Level Objectives
• Datadog Error Budget