Assignment 1 – Kubernetes_Module 7_Devops BC = 2330070508

Module 7: Kubernetes Assignment - 1

Tasks To Be Performed:

1. Deploy a Kubernetes cluster for 3 nodes
2. Create a NGINX deployment of 3 replicas

Instances and Their Private IP Addresses

k-master: 10.0.1.82 worker1: 10.0.1.57 worker2: 10.0.1.119

Step 1: Deploying Kubernetes §

Installing Kubernetes (Kubeadm)

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Step 2: NGINX Deployment §

I will create a YAML file named nginx-deployment.yaml to define my Nginx deployment in Kubernetes.

Kubernetes Docs

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80

^5f259a

I initiate the deployment by applying the file to my Kubernetes cluster with the following command:

kubectl apply -f nginx-deployment.yaml

To verify that the deployment was successful and to view the deployed resources, I use the command:

kubectl get deploy

We can also see the number of pods running is 3

kubectl get pods

Success

Alternatively, instead of using a .yaml file, I can quickly create a deployment directly from the command line. The following one-liner command sets up a deployment named nginx-deployment-1 using the nginx image and specifies that there should be three replicas:

kubectl create deployment nginx-deployment-1 --image=nginx --replicas=3