Helm: List Installed Charts

Helm, the Kubernetes package manager, is a powerful tool that simplifies deploying and managing applications on Kubernetes clusters. One of Helm's essential features is the ability to list installed charts, providing users with a comprehensive overview of the deployed applications. In this article, we will explore the various commands and step-by-step instructions to effectively list the installed charts using Helm.

Checking Helm Installation:

Before diving into listing installed charts, let's ensure Helm is correctly installed on your system. Open your terminal and run the following command:

helm version

This command will display the installed Helm version, ensuring that Helm is ready for use.

Helm List Command:

The primary command for listing installed charts is helm list. This command provides a summary of all releases (installed charts) in your Kubernetes cluster. To execute this command, simply type:

helm list

This will output a table containing information about each installed chart, including the release name, revision, status, and other relevant details.

Filtering Installed Charts:

Sometimes, you may want to filter the list based on specific criteria, such as a particular namespace. To achieve this, use the --namespace flag. For example:

helm list --namespace <namespace_name>

Replace <namespace_name> with the desired namespace, and Helm will narrow down the list accordingly.

Detailed Chart Information:

For more detailed information about a specific installed chart, you can use the helm status command. This command provides a detailed overview of a release, including the chart's configuration, status, and associated resources. Execute the following:

helm status <release_name>

Replace <release_name> with the name of the release you want to inspect.

Helm ls as an Alias:

For convenience, you can use helm ls as an alias for helm list. The commands are equivalent, allowing you to choose the one that feels more intuitive to you:

helm ls

Combining Commands with Kubectl:

If you want to see the Helm releases alongside the Kubernetes resources they manage, you can combine Helm commands with kubectl. For instance:

helm list --all --short | xargs -L1 -I {} kubectl get all -l "release={} ,app.kubernetes.io/managed-by=Helm"

This command lists all resources managed by Helm releases.

So, Helm simplifies the management of Kubernetes applications, and the ability to list installed charts is crucial for monitoring and troubleshooting. Whether you need a quick summary or detailed insights, Helm provides the tools to ensure effective chart management. guide, and may your Helm deployments be smooth and efficient.