Book Image

Continuous Delivery with Docker and Jenkins, 3rd Edition - Third Edition

By : Rafał Leszko
Book Image

Continuous Delivery with Docker and Jenkins, 3rd Edition - Third Edition

By: Rafał Leszko

Overview of this book

This updated third edition of Continuous Delivery with Docker and Jenkins will explain the advantages of combining Jenkins and Docker to improve the continuous integration and delivery process of app development. You’ll start by setting up a Docker server and configuring Jenkins on it. Next, you’ll discover steps for building applications and microservices on Dockerfiles and integrating them with Jenkins using continuous delivery processes such as continuous integration, automated acceptance testing, configuration management, and Infrastructure as Code. Moving ahead, you'll learn how to ensure quick application deployment with Docker containers, along with scaling Jenkins using Kubernetes. Later, you’ll explore how to deploy applications using Docker images and test them with Jenkins. Toward the concluding chapters, the book will focus on missing parts of the CD pipeline, such as the environments and infrastructure, application versioning, and non-functional testing. By the end of this continuous integration and continuous delivery book, you’ll have gained the skills you need to enhance the DevOps workflow by integrating the functionalities of Docker and Jenkins.
Table of Contents (16 chapters)
1
Section 1 – Setting Up the Environment
5
Section 2 – Architecting and Testing an Application
9
Section 3 – Deploying an Application

Environments and infrastructure

So far, we have deployed our applications to some servers – that is, Docker hosts, Kubernetes clusters, and pure Ubuntu servers (in the case of Ansible). However, when we think more deeply about the continuous delivery (CD) process (or the software delivery process in general), we need to logically group our resources. There are two main reasons why this is important:

  • The physical location of machines matters
  • No testing should be done on the production machines

Taking these facts into consideration, in this section, we will discuss different types of environments, their role in the CD process, and the security aspect of our infrastructure.

Types of environments

There are four common environment types – productionstagingQA (testing), and development. Let's discuss each of them one by one.

Production

The production environment...