Kubernetes for App Developers (LFD459)

Learning to build Kubernetes applications will open up career opportunities in high-demand roles in DevOps, cloud engineering & containerization roles. Using Python, this course teaches how to define application resources & use core primitives to build, monitor & troubleshoot scalable applications in Kubernetes — including working with network plugins, security & cloud storage to deploy applications in a production environment.

Audience:

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

Includes:

  Live Online (Virtual)
  3 days of Instructor-led class time
  Hands-on Labs & Assignments
  Resources & Course Manual
  Certificate of Completion
   Digital Badge

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.

What it prepares you for:

The course, along with real-world experience and study, will provide the skills and knowledge also tested by the Certified Kubernetes Application Developer (CKAD) exam.

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 the free Introduction to Kubernetes (LFS158)) 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.

Course content:

Introduction

  • Objectives
  • Who You Are
  • The Linux Foundation
  • Linux Foundation Training
  • Certification Programs and Digital Badging
  • The Linux Foundation THRIVE-ONE Subscriptions
  • Platform Details

 

Kubernetes Architecture

  • What Is Kubernetes?
  • Components of Kubernetes
  • Challenges
  • The Borg Heritage
  • Kubernetes Architecture
  • Terminology
  • Control Plane Node
  • Worker Nodes
  • Pods
  • Services
  • 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
  • eadinessProbe
  • livenessProbe
  • startupProbe
  • Testing
  • Helm
  • Kustomize
  • Labs

Design

  • Traditional Applications: Considerations
  • Decoupled Resources
  • Transience
  • Flexible Framework
  • Managing Resource Usage
  • Using Label Selectors
  • Multi-Container Pods
  • Sidecar Container
  • Adapter Container
  • Ambassador
  • initContainer
  • Custom Resource Definitions
  • 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

 

Understanding security

  • Security Overview
  • Accessing the API
  • Authentication
  • Authorization
  • RBAC
  • RBAC Process Overview
  • Admission Controller
  • Security Contexts
  • Pod Security Standards
  • 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
  • Gateway API
  • Service Mesh
  • Labs

 

Application 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

The Certified Kubernetes Application Developer (CKAD) exam certifies that candidates can design, build and deploy cloud-native applications for Kubernetes. The CKAD was created by the Linux Foundation and the Cloud Native Computing Foundation (CNCF) as a part of their ongoing effort to help develop the Kubernetes ecosystem. The exam is online, proctored, performance-based test that requires solving multiple tasks from a command line running Kubernetes.

Online Exam Delivery
Duration of Exam 2 hours
Certification Valid 2 Years
12 Month Exam Eligibility
One Retake
PDF Certificate and Digital Badge
Software Version: Kubernetes v1.37
Performance-Based Exam
Exam Simulator

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