State Metrics 簡介與設置

How To Setup Kube State Metrics On Kubernetes Cluster

In this blog, we will look at what is Kube State Metrics and its setup on Kubernetes. This blog is part of the Prometheus kubernetes setup tutorial series. Kube State metrics is a service that talks to the Kubernetes API server to get all the details about all the API objects like deployments, pods, daemonsets, Statefulsets, etc.

https://devopscube.com/setup-kube-state-metrics/

What is Kube State Metrics?

• a service that talks to the Kubernetes API server to get all the details about all the API objects like deployments, pods, daemonsets, Statefulsets, etc.

• Kube state metrics service exposes all the metrics on /metrics URI. Prometheus can scrape all the metrics exposed by Kube state metrics.

Important metrics you can get from Kube state metrics.

1. Node status, node capacity (CPU and memory)

2. Replica-set compliance (desired/available/unavailable/updated status of replicas per deployment)

3. Pod status (waiting, running, ready, etc)

4. Ingress metrics

5. PV, PVC metrics

6. Daemonset & Statefulset metrics.

7. Resource requests and limits.

8. Job & Cronjob metrics

Kube State Metrics Setup

Step 1: Clone the Github repo

git clone https://github.com/devopscube/kube-state-metrics-configs.git

Step 2: Create all the objects by pointing to the cloned directory.

microk8s kubectl apply -f kube-state-metrics-configs/

Step 3: Check the deployment status using the following command.

microk8s kubectl get deployments kube-state-metrics -n kube-system