Becoming KCNA Certified: Build a strong foundation in cloud native and Kubernetes and pass the KCNA exam with ease

Length: 252 pages
Edition: 1
Language: English
Publisher: Packt Publishing
Publication Date: 2023-03-09
ISBN-10: 1804613398
ISBN-13: 9781804613399
Sales Rank: #0 (See Top 100 Books)

Kick-start your learning journey and implement both Kubernetes and cloud-native technologies in real-life scenarios with this essential, practical guide to the KCNA exam

Purchase of the print or Kindle book includes a free PDF eBook

Key Features

Gain an in-depth understanding of cloud-native computing and Kubernetes concepts
Prepare for the KCNA exam with the help of practical examples and mock exams
Manage your applications better with Kubernetes container orchestration

Book Description

The job market related to the cloud and cloud-native technologies is both growing and becoming increasingly competitive, making certifications like KCNA a great way to stand out from the crowd and learn about the latest advancements in cloud technologies.

Becoming KCNA Certified doesn’t just give you the practical skills needed to deploy and connect applications in Kubernetes, but it also prepares you to pass the Kubernetes and Cloud Native Associate (KCNA) exam on your first attempt.

The book starts by introducing you to cloud-native computing, containers, and Kubernetes through practical examples, allowing you to test the theory out for yourself. You’ll learn how to configure and provide storage for your Kubernetes-managed applications and explore the principles of modern cloud-native architecture and application delivery, giving you a well-rounded view of the subject. Once you’ve been through the theoretical and practical aspects of the book, you’ll get the chance to test what you’ve learnt with two mock exams, with explanations of the answers, so you’ll be well-prepared to appear for the KCNA exam.

By the end of this Kubernetes book, you’ll have everything you need to pass the KCNA exam and forge a career in Kubernetes and cloud-native computing.

What you will learn

Get to grips with Cloud Native Computing Foundation (CNCF) and its projects
Build, configure, and run containers with Docker
Bootstrap minimal Kubernetes clusters for learning
Manage and encrypt container traffic with Service Mesh
Deploy, configure, and update applications on Kubernetes
Control and connect the applications that run on Kubernetes
Manage storage and provide observability on Kubernetes
Automate software development with CI/CD and GitOps

Who This Book Is For

This book is for DevOps engineers, system administrators, developers, fresh IT graduates, or anyone interested in cloud native architecture, applications, and technologies. Those with relevant work experience looking to upskill themselves in order to manage their applications with Kubernetes in a better way will also find this book helpful. Familiarity with IT fundamentals, networks, and command line interface (CLI) is required, but no prior knowledge of Kubernetes, docker, or cloud services is needed to get started with this book.

Becoming KCNA Certified
Contributors
About the author
About the reviewers
Preface
    Who this book is for
    What this book covers
    To get the most out of this book
    Download the example code files
    Download the color images
    Conventions used
    Get in touch
    Share Your Thoughts
    Download a free PDF copy of this book
Part 1: The Cloud Era
Chapter 1: From Cloud to Cloud Native  and Kubernetes
    The cloud and Before Cloud (B.C.)
        Virtualization
        The cloud
    Evolution of the cloud and cloud-native
    Containers and container orchestration
    Monolithic versus microservices applications
    Kubernetes and its origins
    Summary
    Questions
Chapter 2: Overview of CNCF and Kubernetes Certifications
    OSS and open standards
        Open standards
    Linux and CNCF
        CNCF
    CNCF community and governance
    Cloud roles and personas
    Kubernetes certification path
    Summary
    Questions
Part 2: Performing Container Orchestration
Chapter 3: Getting Started with Containers
    Technical requirements
    Introducing Docker
    Exploring container technology
    Installing Docker and running containers
    Building container images
    Summary
    Questions
    Further reading
Chapter 4: Exploring Container Runtimes, Interfaces, and Service Meshes
    Container runtimes
    Container networking
    Container storage
    Container security
    Introducing service meshes
    Summary
    Questions
    Further reading
Part 3: Learning Kubernetes Fundamentals
Chapter 5: Orchestrating Containers with Kubernetes
    Kubernetes architecture
    The Kubernetes API
    K8s – the Swiss Army knife of container orchestration
    Installing and exploring K8s with minikube
    Summary
    Questions
    Further reading
Chapter 6: Deploying and Scaling Applications with Kubernetes
    Deployments, ReplicaSets, and DaemonSets
    Running stateful workloads
    Application configuration and service discovery
    Ensuring applications are alive and healthy
    Summary
    Questions
    Further reading
Chapter 7: Application Placement and Debugging with Kubernetes
    Scheduling in Kubernetes
    Resource requests and limits
    Debugging applications in Kubernetes
    Summary
    Questions
    Further reading
Chapter 8: Following Kubernetes Best Practices
    Kubernetes networking essentials
    RBAC
    Helm – the package manager for K8s
    Kubernetes best practices
    Summary
    Questions
    Further reading
Part 4: Exploring Cloud Native
Chapter 9: Understanding Cloud Native Architectures
    Cloud Native architectures
    Resiliency and autoscaling
    Serverless
    Cloud Native best practices
    Summary
    Questions
    Further reading
Chapter 10: Implementing Telemetry and Observability in the Cloud
    Telemetry and observability
    Prometheus for monitoring and alerting
    FinOps and cost management
    Summary
    Questions
    Further reading
Chapter 11: Automating Cloud Native Application Delivery
    Delivery of Cloud Native applications
    CI/CD and GitOps
        GitOps
    Infrastructure as a Code (IaC)
    Summary
    Questions
    Further reading
Part 5: KCNA Exam and Next Steps
Chapter 12: Practicing for the KCNA Exam with Mock Papers
    About the KCNA exam
    Tips on getting ready
    Mock exam A
    Mock exam B
Chapter 13: The Road Ahead
    Advancing a cloud-native career
    Contributing to open source
    Further reading
Assessments
    Chapter 1 – From Cloud to Cloud Native and Kubernetes
    Chapter 2 – Overview of CNCF and Kubernetes Certifications
    Chapter 3 – Getting Started with Containers
    Chapter 4 – Exploring Container Runtimes, Interfaces, and Service Meshes
    Chapter 5 – Orchestrating Containers with Kubernetes
    Chapter 6 – Deploying and Scaling Applications with Kubernetes
    Chapter 7 – Application Placement and Debugging with Kubernetes
    Chapter 8 – Following Kubernetes Best Practices
    Chapter 9 – Understanding Cloud Native Architectures
    Chapter 10 – Implementing Telemetry and Observability in the Cloud
    Chapter 11 – Automating Cloud Native Application Delivery
    Chapter 12 – Practicing for the KCNA Exam
        Mock exam A
        Mock exam B
Index
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