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You're reading from  Building CI/CD Systems Using Tekton

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Published inSep 2021
PublisherPackt
ISBN-139781801078214
Edition1st Edition
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Joel Lord
Joel Lord
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Joel Lord

Joel Lord (joel__lord on Twitter) is passionate about the web and technology in general. He likes to learn new things, but most of all, he wants to share his discoveries. He does so by traveling to various conferences all across the globe. He graduated from college with a degree in computer programming in the last millennium. Apart from a little break to get his BSc in computational astrophysics, he has always worked in the industry. In his daily job, Joel is a developer advocate with MongoDB, where he connects with software engineers to help them make the web better by using best practices around JavaScript. In his free time, he can be found stargazing on a campground somewhere or brewing a fresh batch of beer in his garage.
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Using when expressions with parameters

For this first example, you will build a guess-the-number type of game. When you start the pipeline, it will ask you for a number as a parameter. In the pipeline, a when expression will be used to compare this parameter's value with a hardcoded number. If the number is a match, it will output a message saying that you guessed the number accurately. The logger task that you built in Chapter 5, Jumping into Pipelines, will be used in this pipeline to output the messages. For convenience, here is the task definition:

apiVersion: tekton.dev/v1beta1 
kind: Task 
metadata: 
 name: logger 
spec: 
 params: 
   - name: text 
     type: string 
 steps: 
   - name: log 
     image: registry.access.redhat.com/ubi8/ubi-minimal 
     script: | 
       DATE=$(date +%d/%m/%Y\ %T) 
       echo [$DATE] - $(params...
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Building CI/CD Systems Using Tekton
Published in: Sep 2021Publisher: PacktISBN-13: 9781801078214

Author (1)

author image
Joel Lord

Joel Lord (joel__lord on Twitter) is passionate about the web and technology in general. He likes to learn new things, but most of all, he wants to share his discoveries. He does so by traveling to various conferences all across the globe. He graduated from college with a degree in computer programming in the last millennium. Apart from a little break to get his BSc in computational astrophysics, he has always worked in the industry. In his daily job, Joel is a developer advocate with MongoDB, where he connects with software engineers to help them make the web better by using best practices around JavaScript. In his free time, he can be found stargazing on a campground somewhere or brewing a fresh batch of beer in his garage.
Read more about Joel Lord