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Gain insights into building serverless applications on Kubernetes, using Knative, Tekton for CI/CD pipelines, and integrating GitHub for automated builds and deployments through GitHub events.

How to Build a Serverless App Platform on Kubernetes-01.png

knative.tar.gz

DigitalOcean Account

Install Knative

​​Businesses are modernizing and adopting multi-cloud approaches to deliver services. This shift in application deployment has given rise to containerization and Kubernetes for the deployment, management, and scaling of containerized applications. 

This course introduces you to serverless computing and shows you how to build serverless applications using Knative. It teaches CI/CD using Tekton and shows you how to build pipelines triggered by GitHub events. You will create a pipeline that builds container images using Build and, later, Cloud Native Buildpacks. 

In the last part of the course, you will build a web application that integrates with GitHub using a GitHub App, and triggers application build and deployment in response to GitHub events.

Building a Serverless App Platform on Kubernetes

# Summary


Tekton Triggers enables the invocation of a Pipeline in response to an event. We created an automated CI/CD workflow that builds and deploys a new image each time we push new commits to GitHub. In doing so, we created an EventListener webhook that GitHub sends HTTP requests to each time there's a new commit. When an event is received, the Trigger extracts the necessary data from the event payload and runs the Pipeline with the necessary parameters.

Using GitHub webhooks to trigger a Pipeline execution is one of the use cases for Tekton Triggers. We can also integrate our code with Snyk, a security platform that detects security issues in our dependencies and containers. When an issue is detected, we can trigger the rebuild of the image to fix the vulnerability and, afterward, redeploy the service with the new image.

# Quiz on automating Tekton

Let's go over the main topics we covered in this chapter and test our knowledge.

Before We Begin

Introduction

Using Knative to Run Serverless Applications

CI/CD Using Tekton

Automate Tekton Pipeline Execution

Build Container Images without Dockerfile

Build the UI For the Platform

Wrap-up and Quiz

Summary