CI/CD with Docker and Kubernetes - Second Edition - How to Deliver Cloud Native Applications at High Velocity - Semaphore

Sep 25, 2026

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CI/CD with Docker and Kubernetes Second Edition explains how to deliver cloud native applications with high velocity using Docker and Kubernetes. It covers benefits and a Docker adoption roadmap, then deploys to Kubernetes using containers, pods, deployments, probes, rollbacks, and advanced rollout strategies like blue/green and canary. It also defines CI/CD pipeline best practices, provides an end-to-end workflow, and demonstrates implementing the pipeline with Semaphore, including Kubernetes provisioning, databases, canary and stable releases, and rollback troubleshooting.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages92

Reading Time3 h 52 min

AccessFree to download

Preface

Who Is This Book For, and What Does It Cover?

Changes in the Second Edition

How to Contact Us

About the Authors

Using Docker for Development and CI/CD

Benefits of Using Docker

A Roadmap to Adopting Docker

Summary

Deploying to Kubernetes

Containers and Pods

Declarative vs Imperative Systems

Replica Sets Make Scaling Pods Easy

Deployments Drive Replica Sets

Detecting Broken Deployments with Readiness Probes

Rollbacks for Quick Recovery from Bad Deploys

MaxSurge and MaxUnavailable

Selectors and Labels

Advanced Kubernetes Deployment Strategies

Summary

CI/CD Best Practices for Cloud-Native Applications

What Makes a Good CI/CD Pipeline

General Principles

Continuous Integration Best Practices

Continuous Delivery Best Practices

Implementing a CI/CD Pipeline

Docker and Kubernetes Commands

Setting Up The Demo Project

Overview of the CI/CD Workflow

Implementing a CI/CD Pipeline With Semaphore

Provisioning Kubernetes

Provisioning a Database

The Canary Pipeline

Your First Release

Summary

Final Words

Share This Book With The World

Tell Us What You Think

About Semaphore

CI/CD with Docker and Kubernetes CI/CD with Docker and Kubernetes Second Edition—How to Deliver Cloud Native Applications at High Velocity Semaphore Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Who Is This Book For, and What Does It Cover? 8 Changes in the Second Edition 9 How to Contact Us . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 About the Authors . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1 Using Docker for Development and CI/CD 11 1.1 Beneﬁts of Using Docker ...................... 11 1.1. 1 Set up Development Environments in Minutes 11 1.1.2 Deploy Easily in the Cloud or on Premises 12 1.1.3 Less Risky Releases . . . . . . . . . . . . . . . . . . . . . 13 1.2 A Roadmap to Adopting Docker ................. 13 1.2.1 Choosing the First Project to Dockerize ......... 14 1.2.2 Writing the First Dockerﬁle ................ 14 1.2.3 Writing More Dockerﬁles .................. 15 1.2.4 Writing a Docker Compose File .............. 16 1.2.5 A Standardized Development Environment ........ 17 1.2.6 End-To-End Testing and QA ................ 18 1.2.7 Continuous Deployment to Staging ............ 18 1.2.8 Continuous Deployment to Production .......... 19 1.3 Summary .............................. 20 2 Deploying to Kubernetes 21 2. 1 Containers and Pods . . . . . . . . . . . . . . . . . . . . . . . . 22 2.2 Declarative vs Imperative Systems ................ 23 2.3 Replica Sets Make Scaling Pods Easy ............... 24 2.4 Deployments Drive Replica Sets .................. 26 2.4.1 What Happens When You Change Conﬁguration .... 26 2.5 Detecting Broken Deployments with Readiness Probes . . . . . 27 2.6 Rollbacks for Quick Recovery from Bad Deploys ......... 28 2.7 MaxSurge and MaxUnavailable .................. 28 2.8 Quick Demo 29 2.9 Selectors and Labels . . . . . . . . . . . . . . . . . . . . . . . . 30 2.9. 1 Services as Load Balancers . . . . . . . . . . . . . . . . . 30 2.10 Advanced Kubernetes Deployment Strategies .......... 31 2.10.1 Blue / Green Deployment ................. 31 2.10.2 Canary Deployment .................... 33 2.11 Summary .............................. 35 3 CI/CD Best Practices for Cloud-Native Applications 36 3.1 What Makes a Good CI/CD Pipeline ............... 36 3.1. 1 Speed 36 3.1.2 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.1.3 Completeness 37 3.2 General Principles 38 3.2.1 Architect the System in a Way That Supports Iterative Releases . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.2.2 You Build It, You Run It 39 3.2.3 Use Ephemeral Resources 39 3.2.4 Automate Everything .................... 40 3.3 Continuous Integration Best Practices .............. 40 3.3.1 Treat Master Build as If You’re Going to Make a Release at Any Time ....................... 40 3.3.2 Keep the Build Fast: Up to 10 Minutes 41 3.3.3 Build Only Once and Promote the Result Through the Pipeline 43 3.3.4 Run Fast and Fundamental Tests First . . . . . . . . . . 44 3.3.5 Minimize Feature Branches, Embrace Feature Flags . . . 46 3.3.6 Use CI to Maintain Your Code . . . . . . . . . . . . . . 47 3.4 Continuous Delivery Best Practices ................ 48 3.4.1 The CI/CD Pipeline is the Only Way to Deploy to Production 48 3.4.2 Developers Can Deploy to Production-Like Staging Environments at a Push of a Button ............. 48 3.4.3 Always Use the Same Environment ............ 49 4 Implementing a CI/CD Pipeline 50 4. 1 Docker and Kubernetes Commands . . . . . . . . . . . . . . . . 50 4.1. 1 Docker Commands . . . . . . . . . . . . . . . . . . . . . 50 4.1.2 Kubectl Commands . . . . . . . . . . . . . . . . . . . . . 51 4.2 Setting Up The Demo Project 51 4.2. 1 Install Prerequisites 51 4.2.2 Download The Git Repository 52 4.2.3 Running The Microservice Locally . . . . . . . . . . .

FAQs

What topics does the book cover about Docker and CI/CD adoption?

It covers the benefits of using Docker, a step-by-step roadmap to adopting Docker (including Dockerfiles, compose, testing, and deployments), and a summary of the approach for development and delivery.

How does the book explain deploying applications to Kubernetes?

It introduces containers and pods, contrasts declarative and imperative systems, explains how replica sets and deployments enable scaling, and covers readiness probes, rollback strategies, and rollout parameters such as maxSurge/maxUnavailable.

How is Semaphore used to implement a CI/CD pipeline?

The book demonstrates setting up a Semaphore account and project, building the workflow, configuring CI and CD pipeline stages (including canary and stable deployments), provisioning Kubernetes and databases, and handling releases and rollback troubleshooting.

Sep 25, 2026

Upload by Aria