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

Docker container states

Every application we've run so far was supposed to do some work and stop—for example, we've printed Hello from Docker! and exited. There are, however, applications that should run continuously, such as services.

To run a container in the background, we can use the -d (--detach) option. Let's try it with the ubuntu image, as follows:

$ docker run -d -t ubuntu:20.04

This command started the Ubuntu container but did not attach the console to it. We can see that it's running by using the following command:

$ docker ps
CONTAINER ID   IMAGE           COMMAND       STATUS         PORTS 
NAMES
95f29bfbaadc   ubuntu:20.04    "/bin/bash"   Up 5 seconds kickass_stonebraker

This command...