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Jenkins is an open-source multi-platform software for continuous integration/continuous delivery and deployment (CI/CD) in DevOps. It is one of the most common CI/CD tools. Jenkins uses CI/CD pipelines to automate the software development and deployment workflows. Jenkins uses plugins to integrate with DevOps tools such as Docker and Kubernetes. Jenkins plugins can also be used to integrate with cloud providers such as Google Cloud, AWS, and Microsoft Azure. If you want to integrate any DevOps tool with Jenkins, you have to install its plugin in the Jenkins controller platform. You can check this article on Sweet Code about Jenkins.
Helm is an open-source platform that was created by DeisLabs. Helm is used as the package manager for Kubernetes. Many developers use Helm to install any Kubernetes application to the Kubernetes Cluster. Helm automates the process of deploying a Kubernetes application to the Kubernetes Cluster. Helms bundles a Kubernetes application into a single package known as a Helm chart. Developers will then take this Helm chart and install them on the Kubernetes Cluster. You can check this article on Sweet Code about deploying Helm Chart to Kubernetes.
Before you install Helm, you must configure/create a Kubernetes Cluster. We will install Helm on the configured Kubernetes Cluster. There are various Kubernetes Kubernetes Clusters that you can configure. Cloud providers like Google Cloud, AWS, and Microsoft Azure have a dedicated Kubernetes Cluster that you can configure and use. In this tutorial, we will not use any of the cloud providers, instead, we will use a local Kubernetes called Minikube that comes with Docker. As long as you have Docker running you can easily configure Minikube. To configure and start Minikube, follow these steps:
Helm has an official Helm Chart repository called ArtifactHub where developers can push and publish their Helm Charts. In this repository, you can easily find Helm charts for any Kubernetes application and reuse them. For complex applications like Jenkins, it is best to use the official Jenkins Helm Chart. Many Developers have contributed to the Jenkins Helm chart and it has all the Kubernetes YAML files. It will save us time in creating our custom Jenkins Helm chart. In this tutorial will search and download the official Jenkins Helm Chart from ArtifactHub. We will then install the official Jenkins Helm Chart on the Kubernetes Cluster using Helm. Let's install Helm.