By WalkingTree  March 03,  2021

Tips for creating Helm Charts in a Kubernetes Application

Kubernetes doesn’t really provide a packaging solution for the resources of the application and this is where Helm comes into the picture. Helm packages the Kubernetes resources needed to deploy an application into a unit called a chart. A Helm chart not only encapsulates the Kubernetes resources but can also explicitly defines the order of the creation of these resources. Let’s take a look at how to create Helm Charts in Kubernetes applications. 

Define Unit Tests – It is essential to ensure that the Helm chart is consistent, especially if the chart is developed to be used externally. Achieve this with a straightforward task by simply defining unit tests for the Helm chart and all its resources.

Integrate ct Pipeline – A tool called ct is designed for testing Helm charts on a request basis. This tool will allow users to ensure a clean code for the Helm charts. All bugs should be discovered before merging the source code changes. 

Automate Chart Publishing – It is important to automate chart publishing whenever there is a change on the Helm chart. Automating will enable the automation of the application deployment to different environments as well as any other end-to-end integration tests. 

Set-Up Chart Dependencies – Some applications are not designed to run as standalone services, and they normally have dependencies. In case these dependencies are all deployed and controlled by Helm, it will make sure that the dependencies are deployed first, and then deploy the application.

Read on to know more about the tips on how to create Helm Charts in a Kubernetes application.

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