Kubernetes (EKS)

1. Install helm (mac)
1. https://github.com/helm/helm/releases download desired version

brew install helm

2. Unzip tar.gz by double click

3. Open the terminal to authorize the downloaded file



1. move this file to /usr/local/bin

mv helm /usr/local/bin/helm

4. Check if desired helm version was installed (mine was 3.8.2)
1. The reason I installed 3.8.2 is that the new version 3.10 didn’t match my k8s version.

helm version

5. Add Datadog repo

helm repo add datadog https://helm.datadoghq.com

6. Update
1. If updated successfully, the console prints Update Complete. ⎈Happy Helming!⎈

helm repo update

7. Add a default YAML file (example below)
YAML

# Datadog Agent with Logs, APM, Processes, and System Probe enabled

targetSystem: "linux"
datadog:
  apiKey: <YOUR_API_KEY>
  # appKey: <DATADOG_APP_KEY>
  # If not using secrets, then use apiKey and appKey instead
  #apiKeyExistingSecret: <DATADOG_API_KEY_SECRET>
  #appKeyExistingSecret: <DATADOG_APP_KEY_SECRET>
  # clusterName: <CLUSTER_NAME>
  clusterName: <YOUR_CLUSTER_NAME>
  tags: []
  # datadog.kubelet.tlsVerify should be `false` on kind and minikube
  # to establish communication with the kubelet
  # kubelet:
    # tlsVerify: "false"
  logs:
    enabled: true
    containerCollectAll: false
    containerCollectUsingFiles: true
  apm:
    portEnabled: true
    socketPath: /var/run/datadog/apm.socket
    hostSocketPath: /var/run/datadog/
  processAgent:
    enabled: true
    processCollection: false
  systemProbe:
    enableTCPQueueLength: false
    enableOOMKill: true
    collectDNSStats: false                                                                                                                                                                                                              

8. Apply to k8s (suppose yaml filename is datadog-values.yaml)

helm install datadog-agent -f datadog-values.yaml --set datadog.site='datadoghq.com' datadog/datadog

9. If you changed some settings, upgrade helm.

helm upgrade -f datadog-values.yaml datadog-agent datadog/datadog

1. This command gives these errors

* set `clusterAgent.replicas` value to `2` replicas .
* set `clusterAgent.createPodDisruptionBudget` to `true`.

2. To fix this, add clusterAgent settings inside the YAML file.
YAML

targetSystem: "linux"
datadog:
  apiKey: <YOUR_API_KEY>
  # appKey: <DATADOG_APP_KEY>
  # If not using secrets, then use apiKey and appKey instead
  #apiKeyExistingSecret: <DATADOG_API_KEY_SECRET>
  #appKeyExistingSecret: <DATADOG_APP_KEY_SECRET>
  # clusterName: <CLUSTER_NAME>
  clusterName: <YOUR_CLUSTER_NAME>
  tags: []
  # datadog.kubelet.tlsVerify should be `false` on kind and minikube
  # to establish communication with the kubelet
  # kubelet:
    # tlsVerify: "false"
  logs:
    enabled: true
    containerCollectAll: false
    containerCollectUsingFiles: true
  apm:
    portEnabled: true
    socketPath: /var/run/datadog/apm.socket
    hostSocketPath: /var/run/datadog/
  processAgent:
    enabled: true
    processCollection: false
  systemProbe:
    enableTCPQueueLength: false
    enableOOMKill: true
    collectDNSStats: false

clusterAgent:
  replicas: 2
  createPodDisruptionBudget: true

3. When successfully installed, it prints that it is listening on port 8126 for APM service.

10. Check the Datadog agent running in k8
1. Helm → Releases

11. Finally, Check in the Datadog dashboard
1. Kubernetes - Overview (recommended dashboard for k8s)

Logs

targetSystem: "linux"
datadog:
  apiKey: <YOUR_API_KEY>
  # appKey: <DATADOG_APP_KEY>
  # If not using secrets, then use apiKey and appKey instead
  #apiKeyExistingSecret: <DATADOG_API_KEY_SECRET>
  #appKeyExistingSecret: <DATADOG_APP_KEY_SECRET>
  # clusterName: <CLUSTER_NAME>
  clusterName: <YOUR_CLUSTER_NAME>
  tags: []
  # datadog.kubelet.tlsVerify should be `false` on kind and minikube
  # to establish communication with the kubelet
  # kubelet:
    # tlsVerify: "false"
  logs:
    enabled: true
    containerCollectAll: true
    containerCollectUsingFiles: true
  apm:
    portEnabled: true
    socketPath: /var/run/datadog/apm.socket
    hostSocketPath: /var/run/datadog/
  processAgent:
    enabled: true
    processCollection: false
  systemProbe:
    enableTCPQueueLength: false
    enableOOMKill: true
    collectDNSStats: false

clusterAgent:
  replicas: 2
  createPodDisruptionBudget: true

Default Kubernetes dashboards

Kubernetes - Overview

Kubernetes Pods Overview

Kubernetes Deployments Overview