You're reading from Learn Helm

Product typeBook

Published inJun 2020

PublisherPackt

ISBN-139781839214295

Edition1st Edition

Tools

Kubernetes

Concepts

Containerization

Authors (2):

Andrew Block

Austin Dewey

View More author details

Rolling back the WordPress release

While moving forward is preferred, there are some occasions where it makes more sense to return to a previous version of the application. The helm rollback command exists to satisfy this use case. Let's roll back the WordPress release to a previous state.

Inspecting the WordPress history

Every Helm release has a history of revisions. A revision is used to track the values, Kubernetes resources, and chart version that were used in a particular release version. A new revision is created when a chart is installed, upgraded, or rolled back. Revision data is saved in Kubernetes secrets by default (other options are ConfigMap or local memory, determined by the HELM_DRIVER environment variable). This allows your Helm release to be managed and interacted with by different users on the Kubernetes cluster, provided they have the Role-Based Access Control (RBAC) that allows them to view or modify resources in your namespace.

The revision secrets...

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Learn Helm

Published in: Jun 2020Publisher: PacktISBN-13: 9781839214295

Authors (2)

Andrew Block

Andrew Block is a core maintainer on the Helm project and a Distinguished Architect at Red Hat. He specializes in the use of continuous integration and continuous delivery methodologies to streamline the delivery process and incorporate security at each stage. He works with organizations to adopt and implement these technologies and concepts within their organization. As an open source enthusiast, Andrew not only has authored several publications, but he is also a contributor to several open source communities and a lead within the sigstore project, which aims at simplifying how software is signed and verified.
Read more about Andrew Block

Austin Dewey

Austin Dewey is a DevOps engineer focused on delivering a streamlined developer experience on cloud and container technologies. Austin started his career with Red Hat's consulting organization, where he helped drive success at Fortune 500 companies by automating deployments on Red Hat's Kubernetes-based PaaS, OpenShift Container Platform. Currently, Austin works at fintech start-up Prime Trust, where he builds automation to scale financial infrastructure and supports developers on Kubernetes and AWS.
Read more about Austin Dewey

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