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.

Reviews
Apr 2022
Thanks to Chris and the Linux Foundation for this fantastic course!
Apr 2022
Chris was well prepared, and his answers and pointers were very useful. The exercises were quite comprehensive, and the installation software, instructions in the training material, and instructor's support was clear and easy to follow.
Apr 2022
The instructor, Chris Pokorni's depth of Kubernetes knowledge, and his facility for teaching, made for an exceptional course experience, as all the ideas were conveyed clearly and explored thoroughly.
Apr 2022
The enthusiasm and immense knowledge the instructor had of the topic.
Apr 2022
Really skilled instructor, he solved every problem.
Apr 2022
Rarely seen such a high level of detail.
Apr 2022
Top instructor!
Apr 2022
The instructor had a good pace, and tried to engage with all students, no matter how much they already knew about the topic.
Apr 2022
Good overview over the most important aspects of k8s, lots of labs to apply that knowledge.
Apr 2022
Good labs follow. Instructor took care of problems, and helped solve them. He addressed topics from the students in a convenient way.
Apr 2022
Detailed explanations with real world examples. Always having a hands on Labs part after each topic.
Apr 2022
Awesome speaker!
Apr 2022
Many practical examples, and the great knowledge of the instructor.
Apr 2022
Quick knowledge of the instructor, and his ability to explain everything in great detail.
Apr 2022
I liked the discussions around patterns.
Apr 2022
I liked the way Clarke taught CKAD, all the sessions were very engaging, and he answered all questions during the 3 days.
Apr 2022
I liked the instructor’s knowledge and personality.
Apr 2022
Course content was well arranged, which helps during labs.
Apr 2022
The instructor was incredibly personal and engaging!
Apr 2022
The training was extremely interesting and useful.
Apr 2022
I enjoyed discovering the ecosystem of cloud orchestration.