What is the rollback strategy for Helm charts?

Helm charts are powerful tools for managing Kubernetes applications. When deploying applications, having a rollback strategy in place is crucial to ensure stability and reliability. In Helm, this strategy is quite straightforward, as it provides built-in mechanisms for rolling back to a previous release version.

Rollback Strategy for Helm Charts

When you deploy a Helm chart, a new version is created. If something goes wrong with the deployment, you can easily rollback to a previous version using the Helm CLI. Here’s a brief overview of how the rollback process works:

1. Identify the release name and the version you want to roll back to.
2. Run the following command to perform the rollback:

This command will revert the release to the specified revision, allowing you to return to a stable state quickly.

Example

For instance, if you deployed a release named "my-app" and want to rollback to revision 1, you would execute:

After running this command, Helm will revert "my-app" to its state as of revision 1.