check-telemetry-data.yaml

apiVersion: chainsaw.kyverno.io/v1alpha1
kind: StepTemplate
metadata:
  name: check-telemetry-data
spec:
  try:
    - command:
        entrypoint: kubectl
        env:
          - name: LABEL_SELECTOR
            value: ($LABEL_SELECTOR)
        args:
          - get
          - pod
          - -n
          - ${NAMESPACE}
          - -l
          - ${LABEL_SELECTOR}
          - -o
          - jsonpath={.items[0].metadata.name}
        outputs:
          - name: podName
            value: ($stdout)
    - script:
        env:
          - name: podName
            value: ($podName)
        content: |
          #!/bin/bash
          # set -ex
          kubectl get --raw /api/v1/namespaces/$NAMESPACE/pods/${podName}:8888/proxy/metrics
        outputs:
          - name: metrics
            value: (x_metrics_decode($stdout))
        check:
          ($error == null): true
    - assert:
        resource:
          ($metrics[?as_string(metric."__name__") == 'otelcol_exporter_sent_spans_total'].value | [0] > `1`): true
          ($metrics[?as_string(metric."__name__") == 'otelcol_receiver_accepted_spans_total'].value | [0] > `1`): true
  catch:
    - podLogs:
        selector: $(LABEL_SELECTOR)
        container: otc-container