How to Monitor a Kubernetes Cluster Using Prometheus and Helm

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Prometheus, the de facto standard for Kubernetes monitoring, collects time-series metrics such as CPU usage, memory, replica counts, and application latency via a pull model. It can be installed on an on-premise Kubernetes cluster using Helm by adding the official Prometheus community repository from Artifact Hub and deploying the chart with a customized values file. The Helm chart automatically includes kube-state-metrics as a subchart, exposing detailed metrics about Kubernetes object states without requiring manual manifest creation. Once deployed, Prometheus can be configured to monitor specific application pods through annotations added directly to the application's Kubernetes manifest. Prerequisites for the setup include having both Helm and Metrics Server already installed and functional on the cluster.

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ProgrammingDEV Community ·

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