Book Image

DevOps for Web Development

By : Mitesh Soni
Book Image

DevOps for Web Development

By: Mitesh Soni

Overview of this book

The DevOps culture is growing at a massive rate, as many organizations are adopting it. However, implementing it for web applications is one of the biggest challenges experienced by many developers and admins, which this book will help you overcome using various tools, such as Chef, Docker, and Jenkins. On the basis of the functionality of these tools, the book is divided into three parts. The first part shows you how to use Jenkins 2.0 for Continuous Integration of a sample JEE application. The second part explains the Chef configuration management tool, and provides an overview of Docker containers, resource provisioning in cloud environments using Chef, and Configuration Management in a cloud environment. The third part explores Continuous Delivery and Continuous Deployment in AWS, Microsoft Azure, and Docker, all using Jenkins 2.0. This book combines the skills of both web application deployment and system configuration as each chapter contains one or more practical hands-on projects. You will be exposed to real-world project scenarios that are progressively presented from easy to complex solutions. We will teach you concepts such as hosting web applications, configuring a runtime environment, monitoring and hosting on various cloud platforms, and managing them. This book will show you how to essentially host and manage web applications along with Continuous Integration, Cloud Computing, Configuration Management, Continuous Monitoring, Continuous Delivery, and Deployment.
Table of Contents (16 chapters)
DevOps for Web Development
About the Author
About the Reviewer

Creating a Docker image from Dockerfile

Our next step is to create a sample image file. We can build a Docker image using a Dockerfile. It provides step-by-step instructions to building images.

Let's try with a simple CentOS image:

  1. The Dockerfile contains the following two lines:

            FROM centos 
            MAINTAINER mitesh <[email protected]>
  2. Go to the same directory in the terminal and use docker build .to build an image:

                [root@localhost Desktop]# docker build .
                Sending build context to Docker daemon 681.6 MB
                Sending build context to Docker daemon 
                Step 0 : FROM centos
                 ---> 2a332da70fd1
                Step 1 : MAINTAINER mitesh < [email protected] >
                 ---> Running in 305e8da05500
                 ---> b636e26a333a
                Removing intermediate container 305e8da05500
                Successfully built b636e26a333a