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13.2. Datasources for Knative Serving metering

The following ReportDataSources are examples of how Knative Serving can be used with OpenShift Container Platform metering.

13.2.1. Datasource for CPU usage in Knative Serving
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This datasource provides the accumulated CPU seconds used per Knative service over the report time period.

Example YAML file

apiVersion: metering.openshift.io/v1
kind: ReportDataSource
metadata:
  name: knative-service-cpu-usage
spec:
  prometheusMetricsImporter:
    query: >
      sum
          by(namespace,
             label_serving_knative_dev_service,
             label_serving_knative_dev_revision)
          (
            label_replace(rate(container_cpu_usage_seconds_total{container!="POD",container!="",pod!=""}[1m]), "pod", "$1", "pod", "(.*)")
            *
            on(pod, namespace)
            group_left(label_serving_knative_dev_service, label_serving_knative_dev_revision)
            kube_pod_labels{label_serving_knative_dev_service!=""}
          )

13.2.2. Datasource for memory usage in Knative Serving
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This datasource provides the average memory consumption per Knative service over the report time period.

Example YAML file

apiVersion: metering.openshift.io/v1
kind: ReportDataSource
metadata:
  name: knative-service-memory-usage
spec:
  prometheusMetricsImporter:
    query: >
      sum
          by(namespace,
             label_serving_knative_dev_service,
             label_serving_knative_dev_revision)
          (
            label_replace(container_memory_usage_bytes{container!="POD", container!="",pod!=""}, "pod", "$1", "pod", "(.*)")
            *
            on(pod, namespace)
            group_left(label_serving_knative_dev_service, label_serving_knative_dev_revision)
            kube_pod_labels{label_serving_knative_dev_service!=""}
          )

13.2.3. Applying data sources for Knative Serving metering
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Procedure

  • Apply the ReportDataSources resource as a YAML file: 

    $ oc apply -f <datasource_name>.yaml

    Example command

    $ oc apply -f knative-service-memory-usage.yaml

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