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Configuring a thorough logging setup is crucial to operating a production EKS cluster. Log data enables CloudWatch and may already be using it to store logs/metrics from other AWS services. Container Insights The most important thing to do next is to make a copy of the CSV file so you can reload the original if you encounter problems. We recommend using the apple Numbers app (free) for this process. The following assumes you are using Numbers on an iPhone but the same principle would apply whatever software you use. API server logs (api) - Your EKS cluster’s API service is the Kubernetes component that exposes the K8S API. The API server logs contain information on API requests made to your EKS cluster.

Collecting the system logs will provide insight into the host’s performance and data, which is helpful Discovering useful log queries is very helpful for investigations, troubleshooting, and diagnostics In non-managed Kubernetes, it’s critical to monitor Master Nodes as they determine the life of a K8s cluster. Since AWS manages the master nodes and the control plane in EKS, admins have no open access to getting granular metrics on the master node. Kubernetes has a built-in set up to monitor outages via Kubelet which collects data on the state of pods, nodes, and containers and metrics can be accessed via the Metrics Server. Since the metric-server only captures the state of K8s resources in the short term, there’s still a need to capture metrics as a time-series for easier analysis and visualization. The pod running on Fargate must be configured with an IAM role capable of accessing the destination Log data is readily available from every component of an EKS cluster, including the control plane, worker

Example: I1025 00:15:15.525108 1 controller_utils.go:116] "Pod status updated" pod="kube-system/kubedns" status="ready" In the context of an EKS cluster, users will benefit from logs providing insights into the control plane, plane. Log data from this component provides insight into request latency and volume, authorization EKS clusters run on AWS infrastructure, and most AWS services will generate CloudTrail log event output. CloudTrail provides

pattern for EKS Fargate users is to include a sidecar with a logging solution like Fluent Bit or DataDogopen-source logging tools include Grafana Loki, Logstash, and FluentD. These are all big projects with large user EKS Fargate supports logging via sidecar containers and via the built-in Fluent Bit log router. Either approach allows users The worker nodes in a Kubernetes cluster will generate system logs based on the operating system in use. Controller manager (controllerManager) - The controller manager log type contains data on the core control loops that are shipped with Kubernetes.