...

ingester:
  config:
    hostTagIncludes:
    - kfuse
    - kube_cluster_name
    - kubernetes.io/hostname
    - node.kubernetes.io/instance-type
    - org_id
    - project
    - topology.kubernetes.io/region
    - topology.kubernetes.io/zone
    ...
    - custom_tag_name

Enabling Pods to be detected by Prometheus Autodiscovery

In addition to prometheusScrape to be enabled in the datadog values yaml, the pods needs to have the following annotations. Note that if the application pods are deployed using helm, typically the helm values support a podAnnotations section.

  prometheus.io/path: <specify prometheus endpoint path, e.g., /metrics>
  prometheus.io/port: <SPECIFY promethus endpoint here, e.g., "9090">
  prometheus.io/scrape: "true"

Metadata for metrics collected using the openmetrics check

If using the above configuration, then the openmetrics check is enabled in the agent. See here for more details on what openmetrics check does. Kloudfuse agent (installed using the provided values file) employs a custom check (kf_openmetrics) to collect metadata (the “Description” and “Type” of metrics) for metrics collected using the openmetrics check, which. by default, doesn’t collect any metatadametadata. To enable collection of metadata for these metrics, the sources are required to be annotated which will enable the agent auto-discovery for these pods and execute the custom check.

...

apiVersion: v1
kind: Pod
# (...)
metadata:
  name: '<POD_NAME>'
annotations:
    ad.datadoghq.com/<CONTAINER_IDENTIFIER>.check_names: '["kf_openmetrics"]'
    ad.datadoghq.com/<CONTAINER_IDENTIFIER>.init_configs: '[{}]'
    ad.datadoghq.com/<CONTAINER_IDENTIFIER>.instances: '[ { "openmetrics_endpoint": "<http://%%host%%:%%port%%/metrics>"}
      ]'
    # (...)
spec:
  containers:
    - name: '<CONTAINER_IDENTIFIER>'
# (...)

Advance monitoring

...

using Knight

Enable kubernetes_state_metrics

Advance monitoring (Kfuse 1.3 or higher) currently has dependency on kubernetes_state_metrics (KSM) check which is not enabled in the newer version of the agent (2.0) by default. Please ensure that the agent continues to capture these metrics through KSM. To do that, please add/update the dd-agent values file as follows:

datadog:
  kubeStateMetricsEnabled: true
  kubeStateMetricsCore:
    enabled: true
    ignoreLegacyKSMCheck: false

Enable Knight based monitoring in kfuse

Add knightEnabled in the custom-values.yaml and then upgrade the cluster.

ingester:
  ...
  config:
    knightEnabled: true