Explore Kubernetes architecture, frameworks, and interfaces. Gain insights into deployment, scaling, and management of containerized applications. Discover extensibilities and get hands-on customizing Kubernetes.

k8s-go.tar.gz

k8s-go-v2

go-env-v2

Kubernetes is a popular open-source container orchestration system that automates the deployment, scaling, and management of containerized applications. This course is designed to provide a comprehensive understanding of Kubernetes and its programming concepts. You’ll dive deep into advanced topics of Kubernetes.

This course will cover topics such as Kubernetes architecture, frameworks, plugins, and interfaces. You’ll also learn the powerful extensibilities of Kubernetes and make full use of these built-in capabilities to build your customized Kubernetes.

This course is ideal for developers, DevOps engineers, and system administrators who want to learn how to master Kubernetes. By the end of the course, you’ll have a solid understanding of Kubernetes, its programming concepts, and be able to deploy, scale, and manage containerized customizations on Kubernetes. You will also get hands-on experience extending Kubernetes to meet your requirements.

Programming with Kubernetes

# Overview

Aggregated apiservers are complex and hard to implement from scratch. There are lots of API schema, auto generated codes, golang build tags, deployments files, TLS certificates for communication, delegated auth, etc.

# Ways to build custom aggregated apiservers

Normally, there are two ways to build custom aggregated apiservers.

- We could fork the repository `k8s.io/sample-apiserver`, modify it to add our own custom types, and then periodically rebase upstream changes to pick up improvements and bug fixes. This repository is used only for demonstration. However, it contains all the needed files---including source codes, deployment artifacts,  and hack scripts---which can be used for codes' auto generating and containers' image building.

- We could use the development kit `apiserver-builder` to help generate a scaffold repository for our custom APIs. The `apiserver-builder` is a collection of libraries and tools, which are built to help users build native Kubernetes extensions using Kubernetes apiserver aggregation.

In this lesson, we will do the second options and create an empty repository using the `apiserver-builder`. During this lesson, we're using the terminal below for developing and testing.

Learn how to generate a scaffold project for the aggregated apiserver.

Before Getting Started

Kubernetes Architecture

Customizing AuthX

Dynamic Admission Control

Customizing Schedulers

Extending APIs with CustomResourceDefinition (CRD)

Extending APIs with Aggregated APIServer

Container Network Interface

Container Runtime Interface

Extend kubectl

How to Write Good Kubernetes Operators

Assessment of Programming with Kubernetes

Wrap Up

How to Generate the Scaffold Aggregated Apiserver

Overview

Ways to build custom aggregated apiservers