Deploy Nagios on Kubernetes

Question : The Nautilus DevOps team is planning to set up a Nagios monitoring tool to monitor some applications, services etc. They are planning to deploy it on Kubernetes cluster. Below you can find more details.

Create a deployment Nagios-deployment for Nagios core. The container name must be nagios-container 

Create a user & password for the Nagios Core Web Interface

Please Note :-  Perform the below commands based on your question  server,  user name & other details might differ . So please read task carefully before executing. All the Best 👍

Solution:  

1. At first  kubectl  utility configure and working from jump server, run below commands

    kubectl get deploy

    kubectl get services

2.  Create  nagios.yaml  file with all the parameters 

    ( Refer Below Video for more clarity )

---

apiVersion: apps/v1

kind: Deployment

metadata:

  name: nagios-deployment

spec:

  replicas: 1

  selector:

    matchLabels:

      app: nagios-core

  template:

    metadata:

      labels:

        app: nagios-core

    spec:

      containers:

        - name: nagios-container

          image: jasonrivers/nagios

---

apiVersion: v1

kind: Service

metadata:

  name: nagios-service

spec:

  type: NodePort

  selector:

    app: nagios-core

  ports:

    - port: 80

      targetPort: 80

      nodePort: 30008

4.  Run below command to create pod

    kubectl create -f nagios.yaml

5.  Wait for deployment & pods to get running status

    kubectl get deploy

    kubectl get pods

6.  Run below command to login on pod & open shell 

    kubectl exec -it (pod name) -- /bin/bash

7.  As per the task set username & password for Nagios core web interface

       (Refer your task username & password)

    htpasswd /opt/nagios/etc/htpasswd.users xFusionCorp

8.  Validate the task by curl or open the browser by clicking 'Open Port on Host 1'

9.  Click on Finish & Confirm to complete the task successful

Happy Learning!!!!

Apart from this if you need more clarity,  I have made a  tutorial video on this , please go through and share your comments. Like and share the knowledge