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How To Install Helm 3 For Kubernetes

How To Install Helm 3 For Kubernetes

Helm is a package manager for Kubernetes that makes it easy to install, manage, and upgrade applications and services in a Kubernetes cluster. Helm 3 is the latest version of Helm, which has many improvements and new features.

In this article, we will show you how to install Helm 3 for Kubernetes on Linux, macOS, and Windows.

Prerequisites:

Before we get started, you should have the following prerequisites:

  • A Kubernetes cluster up and running
  • kubectl installed on your machine
  • Basic knowledge of Kubernetes

Step 1: Download and Install Helm

The first step is to download and install Helm on your machine. You can download the latest version of Helm from the official website. Once downloaded, extract the archive to a folder on your machine.

On Linux:

wget https://get.helm.sh/helm-v3.7.0-linux-amd64.tar.gz
tar -zxvf helm-v3.7.0-linux-amd64.tar.gz
sudo mv linux-amd64/helm /usr/local/bin/helm

On macOS:

brew install helm

On Windows:

choco install kubernetes-helm

Step 2: Initialize Helm

After installing Helm, the next step is to initialize it with your Kubernetes cluster. To do this, run the following command:

helm init

Step 3: Verify Installation

To verify that Helm is installed correctly, you can run the following command to check the version:

helm version

Step 4: Add a Chart Repository

A chart repository is a collection of packaged Helm charts that can be used to install and manage applications. To add a chart repository, run the following command:

helm repo add <repository-name> <repository-url>

For example, to add the stable chart repository, run the following command:

helm repo add stable https://charts.helm.sh/stable

Step 5: Search for Charts

To search for available charts in the repository, run the following command:

helm search repo <chart-name>

For example, to search for the WordPress chart, run the following command:

helm search repo wordpress

Step 6: Install a Chart

To install a chart, run the following command:

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

For example, to install the WordPress chart with the release name my-wordpress, run the following command:

helm install my-wordpress stable/wordpress

Step 7: List Releases

To list all the installed releases, run the following command:

helm list

Step 8: Upgrade a Release

To upgrade an existing release, run the following command:

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

For example, to upgrade the my-wordpress release with the latest version of the WordPress chart, run the following command:

helm upgrade my-wordpress stable/wordpress

Step 9: Uninstall a Release

To uninstall a release, run the following command:

helm uninstall <release-name>

For example, to uninstall the my-wordpress release, run the following command:

helm uninstall my-wordpress

In this article, we have shown you how to install Helm 3 for Kubernetes on Linux, macOS, and Windows. We have also covered the basic Helm commands for installing, managing, and upgrading applications in a Kubernetes cluster. With Helm, you can easily manage complex applications and services in a Kubernetes environment.

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  • That's it for this post. Keep practicing and have fun. Leave your comments if any.

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