Kubernetes Monitoring

Kubernetes has built-in support for providing useful monitoring information about infrastructure components as well as various Kubernetes objects. The Kubernetes Metrics server is a component (which does not come built-in) that gathers and exposes the metrics data at an API endpoint on the API server. Kubernetes uses this data to manage the scaling of Pods, but this data can also be scraped by a third-party tool such as Prometheus for use by cluster operators. Prometheus has a few very basic data visualization functions and primarily serves as a metric-gathering and storage tool, so you can use a more powerful and useful data visualization tool such as Grafana. Grafana allows cluster admins to create useful dashboards to monitor their clusters. You can learn more about how monitoring in Kubernetes is architected at this link: https://github.com/kubernetes/community/blob/master/contributors/design-proposals/instrumentation/monitoring_architecture.md.

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