(day 31-33)Kubernetes Kickstart: Nginx, Deployment, and Beyond!

Introduction: Welcome to day (31-33) of the 90DaysOfDevOps challenge! In this blog post, we'll guide you through the process of setting up your first Kubernetes cluster using Minikube and running Nginx on it. This hands-on tutorial will help you understand the basics of Minikube, Kubernetes, and deploying a simple Nginx service.

Day 31: Getting Started with Minikube

What is Minikube? Minikube is a utility that allows you to run Kubernetes (K8s) on your local machine. It creates a single-node cluster within a virtual machine, providing an environment to practice Kubernetes operations without the need for a full-scale installation.

Task 1: Installing Minikube on Ubuntu

Pre-requisites:

Ubuntu OS
sudo privileges
Internet access
Virtualization support enabled (Check with egrep -c '(vmx|svm)' /proc/cpuinfo, 0=disabled, 1=enabled)

Steps:

Update System Packages:

 sudo apt update && sudo apt upgrade -y

Install Required Packages:

 sudo apt install -y curl wget apt-transport-https

Install Docker:

Start and enable Docker.
```
  sudo systemctl enable --now docker
```

Add the current user to the docker group.

  sudo usermod -aG docker $USER && newgrp docker

Install Minikube:

 curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube_1.23.2.deb
 sudo dpkg -i minikube_1.23.2.deb

Change Permissions & Move :

Install kubectl:
```
 sudo apt install kubectl
```
Change Permissions & Move :
Start Minikube:
```
 minikube start --driver=docker
```
check status:
Check Cluster Status:
```
 kubectl cluster-info
```
Stop Minikube:
```
minikube stop
```

Optional: Delete Minikube Cluster

minikube delete

Task 2: Creating Your First Pod on Kubernetes

Create ak8s directory:
```
 mkdir k8s && cd k8s
```
Create adeployment.yml file:
- Use your preferred text editor to create the file. For example,
```
  vim deployment.yml
```

Create Namespace:

Dry run to validate the file:

 kubectl apply --dry-run=client -f deployment.yml

Applydeployment.yml:
```
 kubectl apply -f deployment.yml
```

Check deployment status:

 kubectl get pods -n nginx && kubectl get deployments -n nginx

Createservice.yml for exposing the container:
- ```
    vim service.yml
```

Validate through a dry run:

 kubectl apply --dry-run=client -f service.yml

Applyservice.yml:
```
 kubectl apply -f service.yml
```
Check services:
```
kubectl get services
```

Access the Nginx service using Minikube:

minikube service --url nginx-service -n nginx

Conclusion: Congratulations! You've successfully set up your first Kubernetes cluster using Minikube and deployed an Nginx service. This marks a significant milestone in your 90DaysOfDevOps journey. Stay tuned for more exciting challenges and tutorials in the upcoming days. Happy coding!