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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

One of the benefits of being serverless is the ability to scale up and down to meet demand. When there's no traffic coming in, it should scale down, and when it peaks, it should scale up to meet demand. Knative scales out the pods for a Knative service based on inbound HTTP traffic. After a period of idleness (by default, 60 seconds), Knative terminates all of the pods for that service. In other words, it scales down to zero. Knative's autoscaling capability is managed by **Knative Horizontal Pod Autoscaler** in conjunction with the **Horizontal Pod Autoscaler** built into Kubernetes.

Let's look at how Knative Serving automatically scales up and down.

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

Autoscaling Services