If you're using Kubernetes for your containerized applications, you might have heard of Helm. Helm is a package manager for Kubernetes that simplifies the deployment and management of complex applications. However, it's important to know how to properly delete Helm deployments and namespaces to avoid cluttering your cluster with unnecessary resources.
In this article, we'll cover the steps to delete a Helm deployment and namespace. We'll also provide examples and commands to make the process easier to follow.
Deleting a Helm Deployment
Before deleting a Helm deployment, you need to know its name and release namespace. You can list all the releases with the following command:
$ helm ls --all-namespaces
This command lists all the releases and their namespaces. Once you have identified the release you want to delete, you can use the following command to delete it:
$ helm delete release-name -n namespace
Replace release-name with the name of your release and namespace with the namespace of your release. For example, if your release is named myapp and is deployed in the default namespace, you can delete it with the following command:
$ helm delete myapp -n default
If you want to delete all the releases in a specific namespace, you can use the following command:
$ helm delete --purge $(helm ls -q -n namespace)
This command lists all the releases in the namespace and deletes them. Note that the --purge flag is used to remove the release history as well.
Deleting a Namespace
If you want to delete a namespace, you can use the following command:
$ kubectl delete namespace namespace
Replace namespace with the name of your namespace. For example, if you want to delete the my-namespace namespace, you can use the following command:
$ kubectl delete namespace my-namespace
This command deletes the namespace and all the resources associated with it, including deployments, pods, services, and config maps.
In this article, we've covered the steps to delete a Helm deployment and namespace. We've also provided examples and commands to make the process easier to follow. Remember to be careful when deleting resources in your cluster and make sure you're deleting the right resources.
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