Scrape and enrich Kubernetes data with Prometheus

1receivers:
2  prometheus:
3    config:
4      scrape_configs:
5        - job_name: 'istiod'
6          kubernetes_sd_configs:
7          - role: endpoints
8            namespaces:
9              names:
10              - istio-system
11          relabel_configs:
12          - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
13            action: keep
14            regex: istiod;http-monitoring
15          - source_labels: [__meta_kubernetes_endpoint_address_target_name]
16            action: replace
17            target_label: "k8s_pod_name"
18          - source_labels: [__meta_kubernetes_namespace]
19            action: replace
20            target_label: "k8s_namespace_name"
21
22processors:
23  resource:
24    attributes:
25    - key: dt.kubernetes.cluster.id
26      from_attribute: k8s.cluster.uid
27      action: insert
28  cumulativetodelta: {}
29  k8sattributes:
30    auth_type: "serviceAccount"
31    passthrough: false
32    extract:
33      metadata:
34        - k8s.pod.name
35        - k8s.pod.uid
36        - k8s.deployment.name
37        - k8s.namespace.name
38        - k8s.node.name
39        - k8s.cluster.uid
40    pod_association:
41      - sources:
42        - from: resource_attribute
43          name: k8s.pod.name
44        - from: resource_attribute
45          name: k8s.namespace.name
46
47exporters:
48  otlphttp:
49    endpoint: ${DT_ENDPOINT}api/v2/otlp
50    headers:
51      Authorization: "Api-Token ${DT_API_TOKEN}"
52
53service:
54  pipelines:
55    metrics:
56      receivers: [prometheus]
57      processors: [k8sattributes, cumulativetodelta, resource]
58      exporters: [otlphttp]