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

# Implement a scheduler framework plugin

Both the `kube-scheduler` and scheduler framework have been written in Go. Therefore, if we want to have our own scheduling plugins, we need to implement them with Go as well.

The Kubernetes community does have a repository [scheduler-plugins](https://github.com/kubernetes-sigs/scheduler-plugins) that contains out-of-tree scheduler plugins based on the scheduler framework. These high-quality scheduler plugins are exercised in large companies. They are good examples to follow and use in our production environments. If we're creating our scheduler plugins, we can just fork this repo and build on top of it.

In this lesson, we will create an empty repository for a better demonstration.

Now, let's start to implement our custom scheduler plugin.

Learn how to implement a Kubernetes scheduler framework plugin.

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

Implementing a Scheduler Framework Plugin