referred blog : https://contabo.com/blog/kubernetes-helm/

create the chart:

helm create nginx-chart

Deploy the Chart

helm install my-nginx nginx-chart

Here’s a detailed and concise README for your Helm learning repo, covering the basics of Helm, your example project, and other key aspects.

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Learning Helm

Welcome to the Learning Helm repository! This repository contains a sample project to understand the basics of Helm, including how to create and manage Helm charts for Kubernetes applications. Here we deploy an NGINX web server using a custom Helm chart.

What is Helm?

Helm is a package manager for Kubernetes, making it easier to define, install, and manage Kubernetes applications.

Key Features of Helm:

• Charts: Helm packages are called charts. Charts contain all the resource definitions needed to run an application in Kubernetes.
• Templating: Helm uses Go templates to dynamically configure resources.
• Versioning: Helm allows versioning of charts and easy upgrades or rollbacks to previous versions.
• Dependency Management: Charts can depend on other charts, which Helm manages.
• Reusability: Charts can be shared and reused for different Kubernetes applications.

Basic Helm Commands

Here are some fundamental commands to get started with Helm:

• Install a Chart:

  helm install <release-name> <chart-name>

• Upgrade a Chart:

  helm upgrade <release-name> <chart-name>

• Uninstall a Chart:

  helm uninstall <release-name>

• List Releases:

  helm list

Project Structure

This repository contains a Helm chart to deploy an NGINX web server on Kubernetes using Minikube. Here's the structure of the repository:

learn-helm/
│
├── nginx-chart/              # The Helm chart for deploying NGINX
│   ├── Chart.yaml            # Chart metadata
│   ├── values.yaml           # Default configuration values
│   └── templates/            # Kubernetes manifests for resources
│       ├── deployment.yaml   # NGINX deployment configuration
│       ├── service.yaml      # NGINX service (NodePort) configuration
│
└── README.md                 # This file

Chart Explanation

• Chart.yaml: Contains metadata like name, version, and description of the chart.
• values.yaml: Configurable values such as the image repository, tag, and replica count.
• deployment.yaml: Defines a Kubernetes deployment for NGINX using the specified image and replica count.
• service.yaml: Exposes the NGINX deployment as a service using NodePort, making it accessible outside the cluster.

How to Use the Chart

1. Prerequisites:

   • Kubernetes cluster (e.g., Minikube)
   • Helm installed on your system

2. Clone this Repository:

   git clone https://github.com/<your-username>/learn-helm.git
   cd learn-helm

3. Create and Deploy the Helm Chart:

   • Install the chart:

     helm install my-nginx nginx-chart/

4. Access the NGINX Application:

   • After deploying the Helm chart, forward the port to your local machine:

     kubectl port-forward service/my-nginx-nginx-chart 8080:80

   • Access the NGINX website in your browser at http://localhost:8080.

Alternatively, if using NodePort:

• Get the Minikube IP and NodePort:

  minikube ip
  kubectl get services

• Visit the NGINX site using http://<minikube-ip>:<node-port>.

Learn More

Here are some useful links to dive deeper into Helm:

• Helm Documentation
• Kubernetes Documentation
• Helm Chart Best Practices

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Feel free to adjust the structure or the content as needed for your specific project or learning journey.