Update Recording Rules

Periodically, you must update the recording rules for metrics. Follow these steps:

  1. Add the following configuration for recording rules to the Kloudfuse custom_values.yaml file.

  2. Change the rule name and expression as necessary.

      rulemanager:
    rules:
      groups:
      - name: recording_rules
        rules:
          - record: application_availability_slo (1)
            expr: sum by (kube_cluster_name, kube_service) (increase(promhttp_metric_handler_requests_total{code=~"2.*"}[28d])) / sum by (kube_cluster_name, kube_service) (increase(promhttp_metric_handler_requests_total{code=~"2.*|5.*"}[28d]))
    yaml
    1 Defines a new metric application_availability_slo using the rule specified in the expr field.

  3. If adding multiple rules, then add them to a group of its own, MyGroup:

      rulemanager:
    rules:
      ...
      MyGroup:
      - name: my_group_rules
        rules:
          - record: rule_name_1
            expr: sum by (kube_cluster_name, kube_service) (increase(promhttp_metric_handler_requests_total{code=~"2.*"}[28d])) / sum by (kube_cluster_name, kube_service) (increase(promhttp_metric_handler_requests_total{code=~"2.*|5.*"}[28d]))
    yaml

  4. Reinstall the Helm release.