Training > Web & Application > Kubernetes for App Developers (LFD459)
INSTRUCTOR-LED COURSE

Kubernetes for App Developers (LFD459)

This course will teach you how to containerize, host, deploy, and configure an application in a multi-node cluster. It also serves as preparation for the Certified Kubernetes Application Developer (CKAD) exam.

Who Is It For

This course is for experienced application developers who need to containerize, host, deploy, and configure an application in a multi-node cluster.
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What You’ll Learn

Starting with a simple Python script, this course will show you how to define application resources and use core primitives to build, monitor and troubleshoot scalable applications in Kubernetes. Working with network plugins, security and cloud storage, you will be exposed to many of the features needed to deploy an application in a production environment.
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What It Prepares You For

The topics covered are directly aligned with the knowledge domains tested by the CKAD program, and will substantially increase students’ ability to become certified.
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Course Outline
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Introduction
Objectives
Who You Are
The Linux Foundation
Linux Foundation Training
Certification Programs and Digital Badging
Preparing Your System
Course Registration
Labs
Kubernetes Architecture
What Is Kubernetes?
Components of Kubernetes
Challenges
The Borg Heritage
Kubernetes Architecture
Terminology
Master Node
Minion (Worker) Nodes
Pods
Services
Controllers / Operators
Single IP per Pod
Networking Setup
CNI Network Configuration File
Pod-to-Pod Communication
Cloud Native Computing Foundation
Resource Recommendations
Labs
Build
Container Options
Containerizing an Application
Creating the Dockerfile
Hosting a Local Repository
Creating a Deployment
Running Commands in a Container
Multi-Container Pod
readinessProbe
livenessProbe
Testing
Labs
Design
Traditional Applications: Considerations
Decoupled Resources
Transience
Flexible Framework
Managing Resource Usage
Using Label Selectors
Multi-Container Pods
Sidecar Container
Adapter Container
Ambassador
Points to Ponder
Jobs
Labs
Deployment Configuration
Volumes Overview
Introducing Volumes
Volume Spec
Volume Types
Shared Volume Example
Persistent Volumes and Claims
Persistent Volume
Persistent Volume Claim
Dynamic Provisioning
Secrets
Using Secrets via Environment Variables
Mounting Secrets as Volumes
Portable Data with ConfigMaps
Using ConfigMaps
Deployment Configuration Status
Scaling and Rolling Updates
Deployment Rollbacks
Labs
Security
Security Overview
Accessing the API
Authentication
Authorization
ABAC
RBAC
RBAC Process Overview
Admission Controller
Security Contexts
Pod Security Policies
Network Security Policies
Network Security Policy Example
Default Policy Example
Labs
Exposing Applications
Service Types
Services Diagram
Service Update Pattern
Accessing an Application with a Service
Service without a Selector
ClusterIP
NodePort
LoadBalancer
ExternalName
Ingress Resource
Ingress Controller
Service Mesh
Labs
Troubleshooting
Troubleshooting Overview
Basic Troubleshooting Steps
Ongoing (Constant) Change
Basic Troubleshooting Flow: Pods
Basic Troubleshooting Flow: Node and Security
Basic Troubleshooting Flow: Agents
Monitoring
Logging Tools
Monitoring Applications
System and Agent Logs
Conformance Testing
More Resource
Labs
Closing and Evaluation Survey
Evaluation Survey

Prerequisites
To get the most out of this course, you should have:

Basic Linux command line and file editing skills and be familiar with using a programming language (such as Python, Node.js, Go). Knowledge of Cloud Native application concepts and architectures (such as is taught in our free Introduction to Kubernetes edX MOOC) is helpful for this course.

Please note, Kubernetes Administration (LFS458) is not a pre-requisite for this course. There is overlap in the course materials as each one is designed to stand alone and aligns with the related exams.

Learning Path
Reviews
Nov 2022
I liked it all, and the fact that we have access to material after a year.
Nov 2022
Instructor was really good at explaining the concepts, and walking through doubts.
Nov 2022
It's hard to mention something in particular, but it gave me a good, basic understanding of what Kubernetes is, and how to manage components within the cluster.
Nov 2022
Really appreciated Chris Pokorni as an instructor, information was very clearly presented, no rushing of any kind.
Nov 2022
Overall perspective of how Kubernetes works, with relevant hands-on exercises that illustrate the concepts very well.
Nov 2022
Thanks, this training should certainly prepare me for future development using Kubernetes!
Nov 2022
I really enjoyed the hands on labs. Also, really appreciated Dan's energetic attitude, and the help he readily provided if we needed it.
Nov 2022
David did a great job keeping a topic interesting for 3 days.
Nov 2022
The instructor understood the material well, and explained things as clearly as could be done with the, in my opinion, poor training material. At points he also used a whiteboard to explain things, which was very effective, and a very welcome break from scrolling though the PDF.
Nov 2022
The instructor was very informative, and clear on the concepts.
Nov 2022
Chris is a very informative tutor, with a good presentation style.
Nov 2022
Interspersed exercises were well timed, clear, and to the point.
Nov 2022
Chris is the best! We got to ask questions, and brainstorm on real life scenarios, which made it more relatable and fun.
Nov 2022
The hands-on cluster was good to have, being left to 'play', and make mistakes was invaluable. Content was good, delivery was good.
Oct 2022
Instructor was incredibly knowledgeable about the content, and provided an excellent in depth intro about the world of Kubernetes.
Oct 2022
Very informative, well presented, instructor gave a really good overview of Kubernetes, what it is and how it works.
Oct 2022
Slides, documents, and the instructor were good, but some examples of exam questions would've been nice. Labs were hands on.
Oct 2022
The content seemed wide-ranging, so I feel I can review the material provided, and consolidate my knowledge.
Oct 2022
The trainer was super nice and professional.
Oct 2022
Thanks a lot! I didn't expect to learn that much about Kubernetes in only 3 days!
Oct 2022
Trainer had lots of on-hands experience, and was thus able to explain even the more advanced/complex topics all very clearly by providing many examples and clear graphics. He was also able to answer every single question perfectly. I also liked the topics covered, the general structure (theory, exercises, discuss exercises), and that there was not a single mistake in the exercises, every command did exactly what is was supposed to do.
Oct 2022
The general overview. Beforehand I never looked at Jobs, Service Accounts etc., and now I feel comfortable using/implementing them. Also, the security topics are a great opportunity to learn new ways of reducing the attack surface on different levels.
Oct 2022
The instructor was an expert in the subject, and explained really well how to do things, and moreover why.