Book Image

Continuous Delivery with Docker and Jenkins - Second Edition

By : Rafał Leszko
Book Image

Continuous Delivery with Docker and Jenkins - Second Edition

By: Rafał Leszko

Overview of this book

Continuous Delivery with Docker and Jenkins, Second Edition will explain the advantages of combining Jenkins and Docker to improve the continuous integration and delivery process of an app development. It will start with setting up a Docker server and configuring Jenkins on it. It will then provide steps to build applications on Docker files and integrate them with Jenkins using continuous delivery processes such as continuous integration, automated acceptance testing, and configuration management. Moving on, you will learn how to ensure quick application deployment with Docker containers along with scaling Jenkins using Kubernetes. Next, you will get to know how to deploy applications using Docker images and testing them with Jenkins. Towards the end, the book will touch base with missing parts of the CD pipeline, which are the environments and infrastructure, application versioning, and nonfunctional testing. By the end of the book, you will be enhancing the DevOps workflow by integrating the functionalities of Docker and Jenkins.
Table of Contents (18 chapters)
Title Page
Dedication
About Packt
Contributors
Preface
Index

Environments and infrastructure


So far, we have deployed our applications to some servers, which were Docker hosts, Kubernetes clusters, or even pure Ubuntu servers (in case of Ansible). However, when we think deeper about the Continuous Delivery process (or the software delivery process in general), we need to make a logical grouping of our resources. There are two main reasons why it's so 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 environment, their role in the Continuous Delivery process, and the security aspect of our infrastructure.

Types of environment

There are four common environment types—production, staging, QA (testing), and development. Let's discuss each of them one by one.

Production

The production environment is the environment that is used by the end user. It exists in every company and, of course, it is the most important environment...