easylinux/kube-prometheus
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kube-prometheus/README.md
Fabian Reinartz 1a3bc51bba Document cluster monitoring
2016-10-20 17:10:47 +02:00

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kube-prometheus

This repository collects Kubernetes manifests, dashboards, and alerting rules combined with documentationa and scripts to deploy them to get full cluster monitoring setup working.

Prerequisites

First, you need a running Kubernetes cluster. If you don't have one, follow the instructions of bootkube or minikube.

etcd is an important component of a working Kubernetes cluster, but it's deployed outside of it. The monitoring setup below assumes that it is made visible from within the cluster through a headless Kubernetes service. An example for bootkube's multi-vagrant setup is here.

Monitoring Kubernetes

The manifests used here use the Prometheus controller, which manages Prometheus servers and their configuration in your cluster. To install the controller, the node_exporter, Grafana including default dashboards, and the Prometheus server, run:

export KUBECONFIG=<path>   # defaults to "~/.kube/config"
export KUBE_NAMESPACE=<ns> # defaults to "default"
hack/cluster-monitoring/deploy

To tear it all down again, run:

hack/cluster-monitoring/teardown

After all pods are ready, you can reach:

  • Prometheus UI on node port 30900
  • Grafana on node port 30902

Monitoring custom services

TODO