Introduction

Kubernetes has rapidly emerged as the backbone of modern cloud-native applications, often being hailed as the "Linux of the future." Today, everything from ChatGPT to OpenAI applications relies on Kubernetes. With the AI revolution in full swing, the demand for Kubernetes expertise continues to rise. According to a recent Indeed survey, Kubernetes-related job searches skyrocketed by over 173% year-over-year, underlining the importance of establishing your credibility in this dynamic market.

Welcome to the Certified Kubernetes Application Developer exam preparation course!

My name is Mumshad Mannambeth, your instructor for this journey. This course is designed to equip you with the essential skills to develop and manage applications on Kubernetes. Our curriculum blends clear, visual lectures with interactive labs, enabling you to grasp complex concepts with ease. Hands-on labs in a real Kubernetes environment provide feedback, troubleshooting assistance, and invaluable insights as you progress through each task.

In addition to detailed lectures and guided labs, you'll find quizzes and access to a supportive Discord channel for Q&A and exam tips. Whether you’re a beginner or someone seeking a refresher, this course covers foundational content and expands into Docker, Kubernetes, and even essential DevOps concepts.

Our course objectives are fully aligned with the Certified Kubernetes Application Developer exam curriculum. You'll gain practical skills that are not only beneficial for the exam but also for real-world application development. The enhanced lab environments provide guided in-browser practice, ensuring that you can correct mistakes in real time and solidify your understanding of key concepts.

We begin with core concepts by reviewing Kubernetes architecture, Pods, and essential configurations to build a strong foundation.

Configuration Management and Hands-on Examples

Next, we delve into configuration management by exploring ConfigMaps, Security Contexts, resource requirements, Secrets, and Service Accounts. This knowledge is critical for managing application configurations securely and efficiently. Below is an example demonstrating a simple Kubernetes Pod configuration:

apiVersion: v1
kind: Pod
metadata:
  name: simple-webapp-color
  labels:
    name: simple-webapp-color
spec:
  containers:
    - name: simple-webapp

The MultiContainer Pods module introduces you to multi-container patterns such as ambassador, adapter, and sidecar along with practical examples. Following this, you'll learn about probes, monitoring, logging, and debugging. These skills are essential for maintaining application health, including setting up Readiness and Liveness Probes.

apiVersion: v1
kind: Service
metadata:
  name: mysql-h
spec:
  ports:
    - port: 3306
  selector:
    app: mysql
  clusterIP: None

Workloads, Scheduling, and Networking

Moving further, we explore workloads and scheduling topics such as labels, selectors, rolling updates, and rollbacks. This section also covers how to schedule Jobs and CronJobs to automate task management. The networking module addresses services and network policies that ensure secure connectivity within your clusters. Lastly, you will learn about persistent storage using Persistent Volumes (PV) and Persistent Volume Claims (PVC) to guarantee data durability across containers.

Why Choose This Course?

As a CNCF Silver member and a certified Kubernetes training partner, KodeKloud offers expert-guided content that aligns with CNCF-endorsed standards. This certification is a pivotal milestone in your Kubernetes journey, especially if you aspire to become a "Kubeastronaut."

I look forward to embarking on this learning adventure with you. Let's dive into the first lecture and start mastering Kubernetes together!