Install & Configure Prometheus in Kubernetes Cluster

Step 1- Create 2 PV for Prometheus server & Alert Manager

-------------- my-prometheus-alertmanager.yaml --------------------------
apiVersion: v1
metadata:
  name: my-prometheus-alertmanager
  labels:
    type: local
spec:
  capacity:
    storage: 20Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: "/tmp/alertmanager"

-------------- my-prometheus-server.yaml --------------------------
apiVersion: v1
metadata:
  name: my-prometheus-server
  labels:
    type: local
spec:
  capacity:
    storage: 20Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: "/tmp/prometheus"

----------------------
$ kubectl apply -f my-prometheus-server.yaml
$ kubectl apply -f my-prometheus-alertmanager.yamlCode language: JavaScript (javascript)

Step 2 – Install using Helm

$ helm repo add prometheus-community https://prometheus-community.github.io/helm-charts

$ helm install my-prometheus prometheus-community/prometheus --version 15.10.4Code language: JavaScript (javascript)

Step 3 – How to access?

Get the PushGateway URL by running these commands in the same shell:

$ export POD_NAME=$(kubectl get pods --namespace default -l "app=prometheus,component=pushgateway" -o jsonpath="{.items[0].metadata.name}")

$ kubectl --namespace default port-forward $POD_NAME 9091

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

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