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Building CI/CD Systems Using Tekton

Building CI/CD Systems Using Tekton

By : Joel Lord
5 (3)
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Building CI/CD Systems Using Tekton

Building CI/CD Systems Using Tekton

5 (3)
By: Joel Lord

Overview of this book

Tekton is a powerful yet flexible Kubernetes-native open source framework for creating continuous integration and continuous delivery (CI/CD) systems. It enables you to build, test, and deploy across multiple cloud providers or on-premise systems. Building CI/CD Systems Using Tekton covers everything you need to know to start building your pipeline and automating application delivery in a cloud-native environment. Using a hands-on approach, you will learn about the basic building blocks, such as tasks, pipelines, and workspaces, which you can use to compose your CI/CD pipelines. As you progress, you will understand how to use these Tekton objects in conjunction with Tekton Triggers to automate the delivery of your application in a Kubernetes cluster. By the end of this book, you will have learned how to compose Tekton Pipelines and use them with Tekton Triggers to build powerful CI/CD systems.
Table of Contents (20 chapters)
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1
Section 1: Introduction to CI/CD
4
Section 2: Tekton Building Blocks
12
Section 3: Tekton Triggers
15
Section 4: Putting It All Together

Introducing when expressions

Sometimes, you will want some tasks to happen based on certain conditions. To do this, you will need to use when expressions. You can think of them as if statements for your pipelines.

Tekton evaluates when expressions before task execution. If the described condition is met, Tekton will proceed with the task. Otherwise, the task is skipped.

When you need when expressions, you will add them as part of the task definition in a pipeline description.

They have three properties – input, operator, and values. This is what a typical when expression would look like:

   when: 
     - input: "true" 
       operator: in 
       values: ["true"] 

For input, you can use a static string or a variable substitution. Typical variables would be a pipeline parameter value or the value of a previous task result.

There are two operators...

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