Add config variable to toggle using kubelet core check (#1319)

* Add config variable to toggle using kubelet core check

* Move kubelet core check env var to agent specific chart

* Use camel case for config variable

* Update helm docs

* Append enabled to core check config

charts/datadog/CHANGELOG.md

@@ -1,5 +1,10 @@
 # Datadog changelog
 
+## 3.61.0
+
+* Add `datadog.kubelet.core_check` option to configure whether the kubelet core check should be used
+  Note: this requires agent/cluster agent version 7.53.0+
+
 ## 3.60.0
 
 * Set default `Agent` and `Cluster-Agent` version to `7.53.0`

charts/datadog/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: datadog
-version: 3.60.0
+version: 3.61.0
 appVersion: "7"
 description: Datadog Agent
 keywords:

charts/datadog/README.md

@@ -1,6 +1,6 @@
 # Datadog
 
-![Version: 3.60.0](https://img.shields.io/badge/Version-3.60.0-informational?style=flat-square) ![AppVersion: 7](https://img.shields.io/badge/AppVersion-7-informational?style=flat-square)
+![Version: 3.61.0](https://img.shields.io/badge/Version-3.61.0-informational?style=flat-square) ![AppVersion: 7](https://img.shields.io/badge/AppVersion-7-informational?style=flat-square)
 
 [Datadog](https://www.datadoghq.com/) is a hosted infrastructure monitoring platform. This chart adds the Datadog Agent to all nodes in your cluster via a DaemonSet. It also optionally depends on the [kube-state-metrics chart](https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-state-metrics). For more information about monitoring Kubernetes with Datadog, please refer to the [Datadog documentation website](https://docs.datadoghq.com/agent/basic_agent_usage/kubernetes/).
 
@@ -730,6 +730,7 @@ helm install <RELEASE_NAME> \
 | datadog.kubeStateMetricsEnabled | bool | `false` | If true, deploys the kube-state-metrics deployment |
 | datadog.kubeStateMetricsNetworkPolicy.create | bool | `false` | If true, create a NetworkPolicy for kube state metrics |
 | datadog.kubelet.agentCAPath | string | /var/run/host-kubelet-ca.crt if hostCAPath else /var/run/secrets/kubernetes.io/serviceaccount/ca.crt | Path (inside Agent containers) where the Kubelet CA certificate is stored |
+| datadog.kubelet.coreCheckEnabled | bool | `false` |  |
 | datadog.kubelet.host | object | `{"valueFrom":{"fieldRef":{"fieldPath":"status.hostIP"}}}` | Override kubelet IP |
 | datadog.kubelet.hostCAPath | string | None (no mount from host) | Path (on host) where the Kubelet CA certificate is stored |
 | datadog.kubelet.podLogsPath | string | /var/log/pods on Linux, C:\var\log\pods on Windows | Path (on host) where the PODs logs are located |

charts/datadog/ci/kubeconform-values.yaml

@@ -4,6 +4,7 @@ datadog:
   kubelet:
     hostCAPath: /foo/bar/cert.ca
     agentCAPath: /bar/foo/cert.ca
+    coreCheckEnabled: true
   env:
   - name: "DD_KUBELET_TLS_VERIFY"
     value: "false"

charts/datadog/templates/_container-agent.yaml

@@ -184,6 +184,10 @@
       value: /host
     {{- end }}
     {{- end }}
+    {{- if .Values.datadog.kubelet.coreCheckEnabled }}
+    - name: DD_KUBELET_CORE_CHECK_ENABLED
+      value: {{ .Values.datadog.kubelet.coreCheckEnabled | quote }}
+    {{- end }}
     {{- include "additional-env-entries" .Values.agents.containers.agent.env | indent 4 }}
     {{- include "additional-env-dict-entries" .Values.agents.containers.agent.envDict | indent 4 }}
   volumeMounts:

charts/datadog/values.yaml

@@ -280,6 +280,9 @@ datadog:
     # datadog.kubelet.podLogsPath -- Path (on host) where the PODs logs are located
     # @default -- /var/log/pods on Linux, C:\var\log\pods on Windows
     podLogsPath:
+    # datadog.kubelet.coreCheck -- Toggle if kubelet core check should be used instead of Python check. (Requires Agent/Cluster Agent 7.53.0+)
+    # @default -- false
+    coreCheckEnabled: false
 
   # datadog.expvarPort -- Specify the port to expose pprof and expvar to not interfere with the agent metrics port from the cluster-agent, which defaults to 5000
   expvarPort: 6000