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.
read less read more
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.
read less read more
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.
read less read more
Course Outline
Expand All
Collapse All
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.

Reviews
Sep 2021
I liked that the instructor "rephrased" the written information.
Sep 2021
The pacing and the information was fantastic. I would recommend, and have already recommended this course to multiple others in my branch.
Sep 2021
Good class.
Sep 2021
Nicely prepared lab environments. Good job!
Sep 2021
The distribution of time between information and the labs.
Sep 2021
Good material, and a good instructor.
Sep 2021
A lot of lab and less "classroom talk".
Aug 2021
The instructor was good, and handled the "remote" aspect very well.
Aug 2021
Very good instructor.
Aug 2021
A good number of lab exercises.
Aug 2021
The instructor had a pleasant voice, his speech was clear and easy to understand.
Aug 2021
Really great training.
Aug 2021
Great instructor.
Aug 2021
The instructor was very professional, and the whole course was full of interesting background information and tips.
Aug 2021
The Labs worked very well, even for people like me who have nearly no experience with console / k8s.
Aug 2021
The lab exercises!
Aug 2021
The course material and the sample files are very good.
Aug 2021
Good training.
Aug 2021
Very good trainer.
Aug 2021
I got all my questions answered.
Aug 2021
Nice class, very friendly and helpful trainer.
Aug 2021
The material provided, in order to read over everything again.
Aug 2021
The course material and the sample files are very good.
Aug 2021
Good class, and thank you for the time and setup!
Aug 2021
The instructor was friendly.
Aug 2021
The instructor clearly knew what he was talking about, and brought in real working examples.
Aug 2021
I enjoyed being able to get hands on experience, and explore k8s from the ground up. I have had a lot of real world experience, but some things I have taken for granted, as I've never had to build them from scratch (policies, services, etc). The extra resources are also a major benefit to take away to my own personal library of learning materials to look at.
Aug 2021
The labs were extremely helpful, and well documented.
Aug 2021
Clarke did a great job.
Aug 2021
I have some experience with Docker Swarm, and I have been wanting to get started with Kubernetes, but really didn't know how to. I was able to draw some parallels between the two tools, and that made learning this a bit easier for me.
Aug 2021
Very good introduction overall. The labs were especially helpful in getting my hands on the software.
Aug 2021
I like that the instructor talked about a lot of background information using supporting material, which was very useful.
Aug 2021
Fundamentals were given in a manageable way.
Jul 2021
The labs were very practical.
Jul 2021
Having extra resources given to us at the end, by the instructor.
Jul 2021
The exercises were very interesting.
Jul 2021
Having a mix between the lectures and practical aspects - I feel like the labs are very important, giving more context and practice.
Jul 2021
The instructor was direct, easy to understand, and the practical laboratories were well thought out, and helped cement the information given to us. For a 3 day course, it gave me a whole lot of context on how Kubernetes (and in a smaller way containers) works.
Jul 2021
Having an overview of the most important topics relating to Kubernetes, and experiencing those concepts through the lab exercises.
Jul 2021
It allowed me to have a quick introduction to Kubernetes, a general one, now I can explore further by myself.
Jul 2021
The pace was ideal, instructor experience, and the real life examples shown were very helpful.
Jul 2021
I was able to learn more about Kubernetes orchestration.
Jun 2021
The labs are very well explained.
Jun 2021
Everything was well explained, and the labs were helpful towards understanding the course.
Jun 2021
I liked the labs, the application that was setup, and then used on Kubernetes.
Jun 2021
It was hands-on, and each one of us had our own sandbox.
Jun 2021
I liked the fact that we were able to do labs and ask questions, as the labs helped to confirm the theory.
Jun 2021
I enjoyed the hands on use of actual clusters, it helped a lot with the experience and understanding of what goes on.
Jun 2021
The instructor wasn't afraid to mention the pros and cons of Kubernetes.
Jun 2021
The instructor was very good, he kept our interest, and was very knowledgeable. Course material moved from easy to complex in good fashion.
Jun 2021
Overall it was a good course that added value.
Jun 2021
The instructor explains clearly, and takes time to answer students' questions.
Jun 2021
Well structured, and well documented.
Jun 2021
Clear and easily understood Swedish language from the instructor.
Jun 2021
Good mix between instructor led presentation and labs, to try it out yourself. Also well balanced between overview and deep dive.
Jun 2021
The focus on the labs, I wholeheartedly agree with the hands on philosophy when it comes to learning.
Jun 2021
Very detailed and to the point. Nice with the practical examples.
Jun 2021
The hardware environment (Google Cloud SDK), was very convenient to use for the Labs exercises.
Jun 2021
The interaction while practicing labs, and the responsiveness of the trainer.
Jun 2021
French training with an expert instructor.
Jun 2021
The exchanges with the trainer, and the quality of his answers.
Jun 2021
The BeOpenit team was really great! Thanks to them!
Jun 2021
The topics are well separated.
Jun 2021
I enjoyed the course, and learned a great deal about Kubernetes! Thank you Karl Clinger!
Jun 2021
Having access to an instructor with numerous years of experience with Kubernetes, as he answered all of my questions in a few minutes, which otherwise would have taken hours to research on my own.
Jun 2021
For someone who has little experience with Linux, it was very interesting.
Jun 2021
Overall perfect!
Jun 2021
I liked the ratio of the labs to the lesson.
Jun 2021
Many side notes from the instructor.
Jun 2021
The trainer mentioned many side-notes, and gave us very detailed and useful input about real life.
Jun 2021
Fully happy with the course.
Jun 2021
Good instructor!
Jun 2021
I liked the lab exercises, course material, and hands-on experience setup.
Jun 2021
A big bonus to have such an experienced teacher, who shares real-world insights, and expands on subjects of particular interest to the class. A job very well done!
May 2021
Great job Chris! Thank you.
May 2021
I liked the detailed explanations from the instructor.
May 2021
The labs were detailed, and provided a lot of hands-on experience.
May 2021
Drawings on the "whiteboard", and showing external resources, where to find docs, and more information about the technical problems we might face.
May 2021
The labs were great, and worked out of the box.
May 2021
I liked the way some concepts were visualised by drawing.
May 2021
The fact that it was online allowed you to focus more during labs. When the course is in person, generally there is a lot of talking during the labs, and it is hard to finish them.
May 2021
Was helpful in obtaining a high overview level of many basic concepts.
May 2021
Really competent trainer.
May 2021
High proficiency of the coach, alternating between theory and exercises.
May 2021
The pace of the training is correct for 3 days.
May 2021
Was helpful in getting a high level overview of many basic concepts.
May 2021
The PDF document and class notes were very helpful.
May 2021
The instructor is a very good speaker, and was able to explain stuff well. I will definitely recommend the course further.
May 2021
The materials were not read, but explained, and there was some personal experiences and advice shared with us, not just what was in the material.
May 2021
It covers K8s from A to Z. The instructor is really knowledgeable and helpful.
May 2021
The instructor was engaging, well prepared, and really motivated us to keep learning more.
May 2021
The cloud environment was ready and available, we didn't spend any time with setup and configurations.
May 2021
My understanding of k8s helm syntax improved. I started using the command kubectl more confidently.
Apr 2021
Great course, and well organized documents!
Apr 2021
Well prepared material.
Apr 2021
The instructor was always prepared for the class, and very helpful throughout the course.
Apr 2021
The instructor explained things in a very simple way, and was very friendly and approachable.
Apr 2021
Tim explained all the concepts very well.
Jan 2021
The instructor is obviously very knowledgeable in Kubernetes. He was able to explain very complex concepts on a whiteboard, and didn't just scan through a bunch of slides.
Jan 2021
Detailed knowledge of the domain, and extensive explanation of the subject in the workshop manual.
Jan 2021
Instructor was great, and the exam preparation material was a good touch.
Jan 2021
I liked the lab exercises. Well documented - the supporting documentation explaining the purpose of the exercises was good. The ability to review these exercises outside of the allocated training time was useful.
Jan 2021
Chris and his ability to describe completes things intelligibly.
Jan 2021
The lab exercises were well timed, I could finish them almost on time, in +- 2 minutes.