Cloud & Networking
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You're reading from  The DevOps 2.4 Toolkit

Product typeBook
Published inNov 2019
PublisherPackt
ISBN-139781838643546
Edition1st Edition
Tools
Kubernetes
Concepts
DevOps
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Author (1)
Viktor Farcic
Viktor Farcic
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Viktor Farcic

Viktor Farcic is a senior consultant at CloudBees, a member of the Docker Captains group, and an author. He codes using a plethora of languages starting with Pascal (yes, he is old), Basic (before it got the Visual prefix), ASP (before it got the .NET suffix), C, C++, Perl, Python, ASP.NET, Visual Basic, C#, JavaScript, Java, Scala, and so on. He never worked with Fortran. His current favorite is Go. Viktor's big passions are Microservices, Continuous Deployment, and Test-Driven Development (TDD). He often speaks at community gatherings and conferences. Viktor wrote Test-Driven Java Development by Packt Publishing, and The DevOps 2.0 Toolkit. His random thoughts and tutorials can be found in his blog—Technology Conversations
Read more about Viktor Farcic

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Rolling back Helm revisions

No matter how we deploy our applications and no matter how much we trust our validations, the truth is that sooner or later we'll have to roll back. That is especially true with third-party applications. While we could roll forward faulty applications we developed, the same is often not an option with those that are not in our control. If there is a problem and we cannot fix it fast, the only alternative is to roll back.

Fortunately, Helm provides a mechanism to roll back. Before we try it out, let's take a look at the list of the Charts we installed so far.

 1  helm list

The output is as follows.

NAME    REVISION UPDATED     STATUS   CHART          NAMESPACE
jenkins 2        Thu May ... DEPLOYED jenkins-0.16.1 jenkins

As expected, we have only one Chart running in our cluster. The critical piece of information is that it is the second revision...

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The DevOps 2.4 Toolkit
Published in: Nov 2019Publisher: PacktISBN-13: 9781838643546
© 2019 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Viktor Farcic

Viktor Farcic is a senior consultant at CloudBees, a member of the Docker Captains group, and an author. He codes using a plethora of languages starting with Pascal (yes, he is old), Basic (before it got the Visual prefix), ASP (before it got the .NET suffix), C, C++, Perl, Python, ASP.NET, Visual Basic, C#, JavaScript, Java, Scala, and so on. He never worked with Fortran. His current favorite is Go. Viktor's big passions are Microservices, Continuous Deployment, and Test-Driven Development (TDD). He often speaks at community gatherings and conferences. Viktor wrote Test-Driven Java Development by Packt Publishing, and The DevOps 2.0 Toolkit. His random thoughts and tutorials can be found in his blog—Technology Conversations
Read more about Viktor Farcic

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