Introduction

Helm, the package manager for Kubernetes, offers powerful features for managing deployed releases. The helm history command is a valuable tool for exploring the history of deployed releases and providing insights into revisions, timestamps, and user annotations. In this article, we'll delve into the helm history command, exploring its functionality, and providing a step-by-step guide along with a practical example to demonstrate how to view the history of deployed releases effectively using Helm.

1. Understanding helm history Command: The helm history command is used to view the history of deployed releases. It displays information about revisions, timestamps, and user annotations, allowing users to track changes and revisions over time.

2. Viewing Release History: Let's explore the history of a deployed release named "my-release" using the helm history command.

   Example:

    $ helm history my-release
   

   Output:

    REVISION  UPDATED                  STATUS      CHART          DESCRIPTION
    1         Mon Jan 24 15:04:12 2022 deployed    my-chart-1.0.0 First install
    2         Tue Feb 01 10:22:38 2022 deployed    my-chart-1.1.0 Upgrade complete
   

   • The output displays information about the history of the deployed release "my-release", including revisions, timestamps, status, chart versions, and descriptions of each revision.

   • Each row represents a revision of the release, with details such as revision number, update timestamp, deployment status, chart version, and description.

3. Interpreting the Output:

   • The output provides a chronological view of the history of the deployed release, allowing users to track changes and revisions over time.

   • Users can interpret the output to understand when each revision was deployed, the status of the deployment, and any descriptions provided for each revision.

4. Analyzing Release History: Users can analyze the release history to understand the progression of the deployment, identify any issues or errors encountered during upgrades, and track changes made to the release over time.

Conclusion

The helm history command is an essential tool for exploring the history of deployed releases in Kubernetes environments, providing valuable insights into revisions, timestamps, and user annotations. By understanding how to use the helm history command and interpreting its output, users can effectively track changes and revisions over time, facilitating efficient release management and deployment tracking using Helm.