redaous / tekton-lab

Power-Up With Tekton Pipelines

Pearson training, December 16 2020.

Intro

• Welcome
• How this will work
• What we will cover
• About me
• Installing necessary tools
  • minikube
  • kubectl
  • tkn
  • Tekton
  • VS Code tooling

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Tasks

• What is a Task
• What is a Step
• What is a TaskRun
• Tekton official Task catalog
• Parameters
• Shared volumes

Hands-On

• Create a simple Task (1.yaml)
• Add parameters to a task (2.yaml)
• Add multiple steps to a task
• Shared volume between steps (3.yaml)

Exercise

• Create your own task that outputs a log (4.yaml)
• Stretch goal (5.yaml)
  • Add a second sleep step to your task with a parameter for the number of seconds
  • Add a second parameter to the task for the name of the person to greet

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Pipelines

• What is a Pipeline
• What is a PipelineRun
• Parameters
• Task Order
• VS Code Pipeline visualizer

Hands-On

• Create a simple pipeline with two tasks (6.yaml)
• Add Parameters to Pipelines (7.yaml)
• Reorder Tasks (8.yaml)
• Re-use Tasks (9.yaml)

Exercise

• Given the tasks in 10.yaml, create an optimal pipeline to make a PB&J sandwich (11.yaml)
• Stretch goal:
  • Add a parameter to the Pipeline to echo who is eating the sandwich (12.yaml)

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PipelineResources

• A quick note on PipelineResources

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Workspaces

• What is a Workspace
• Types
• PVs and PVCs
• Using a PipelineRun for template

Hands-On

• Create a read and write task
• Create a Pipeline that writes then reads from the Workspace (13.yaml)
• Create a PV/PVC to be used with the pipeline (14.yaml)
• Create a PipelineRun with a Workspace template (15.yaml)

Exercise

• Create a pipeline that clones the git repo from https://github.com/joellord/tekton-lab-sample and outputs the content of sample.txt in a subsequent Task (16.yaml, 17.yaml)

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WhenExpressions

• A quick note about Conditions
• What is a WhenExpression

Hands-On

• Create a greet task and a compliment task
• Create a pipeline that greets the person specified in the parameters and compliments depending on the name (18.yaml)

Exercise

• Modify the last Pipeline to output a warning if the branch that is requested in the git clone task is development (19.yaml)

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Triggers

• Tekton Triggers
• OpenShift Pipelines Demo

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Putting it together

• Deploy an application using a Tekton Pipeline
  • Git Clone
  • Run npm test
  • Run npm lint
  • Push to registry

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Links

What is CI/CD https://www.redhat.com/en/topics/devops/what-is-ci-cd Continuous Delivery Foundation https://cd.foundation Tekton https://tekton.dev Git https://git-scm.com VS Code https://code.visualstudio.com Tekton extension for VS Code https://github.com/redhat-developer/vscode-tekton Docker https://www.docker.com/get-started Podman (alternative to Docker) https://podman.io Kubectl https://kubernetes.io/docs/tasks/tools/install-kubectl/ Minikube https://minikube.sigs.k8s.io/docs/start/ Tekton CLI tool https://github.com/tektoncd/cli/releases Tekton Installation https://tekton.dev/docs/getting-started Tekton Task Catalog https://hub-preview.tekton.dev

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Schedule

Segment 1: Introduction to CI/CD and Tekton 30 minutes Segment 2: Installing Tekton on minikube 20 minutes Q&A/Break 10 minutes Segment 3: Building a Task 25 minutes Segment 4: Building a Pipeline 25 minutes Q&A/Break 10 minutes Segment 5: Adding Resources 25 minutes Segment 6: Introducing Workspaces and Conditions 25 minutes Q&A/Break 10 minutes Segment 7: Build Your Own Pipeline 1 hour