Learning Docker

Docker lets you create, deploy, and manage your applications anywhere at anytime – flexibility is key so you can deploy stable, secure, and scalable app containers across a wide variety of platforms and delve into microservices architecture

About This Book

• This up-to-date edition shows how to leverage Docker’s features to deploy your existing applications
• Learn how to package your applications with Docker and build, ship, and scale your containers
• Explore real-world examples of securing and managing Docker containers

Who This Book Is For

This book is ideal for developers, operations managers, and IT professionals who would like to learn about Docker and use it to build and deploy container-based apps. No prior knowledge of Docker is expected.

What You Will Learn

• Develop containerized applications using the Docker version 17.03
• Build Docker images from containers and launch them
• Develop Docker images and containers leveraging Dockerfiles
• Use Docker volumes to share data
• Get to know how data is shared between containers
• Understand Docker Jenkins integration
• Gain the power of container orchestration
• Familiarize yourself with the frequently used commands such as docker exec, docker ps, docker top, and docker stats

Table of Contents

Chapter 1: Getting Started with Docker

Chapter 2: Handling Docker Containers

Chapter 3: Building Images

Chapter 4: Publishing Images

Chapter 5: Running Your Private Docker Infrastructure

Chapter 6: Running Services in a Container

Chapter 7: Sharing Data with Containers

Chapter 8: Orchestrating Containers

Chapter 9: Testing with Docker

Chapter 10: Debugging Containers

Chapter 11: Securing Docker Containers

Chapter 12: The Docker Platform – Distinct Capabilities and Use Cases

In Detail

Docker is an open source containerization engine that offers a simple and faster way for developing and running software. Docker containers wrap software in a complete filesystem that contains everything it needs to run, enabling any application to be run anywhere – this flexibily and portabily means that you can run apps in the cloud, on virtual machines, or on dedicated servers.

This book will give you a tour of the new features of Docker and help you get started with Docker by building and deploying a simple application. It will walk you through the commands required to manage Docker images and containers. You’ll be shown how to download new images, run containers, list the containers running on the Docker host, and kill them.

You’ll learn how to leverage Docker’s volumes feature to share data between the Docker host and its containers – this data management feature is also useful for persistent data. This book also covers how to orchestrate containers using Docker compose, debug containers, and secure containers using the AppArmor and SELinux security modules.

Style and approach

This step-by-step guide will walk you through the features and use of Docker, from Docker software installation to the impenetrable security of containers.

About The Authors

Jeeva S. Chelladhurai has been working as a DevOps specialist at the IBM Global Cloud Center of Excellence (CoE) in India for the past 8 years. He has more than 20 years of experience in the IT industry. In various capacities, he has technically managed and mentored diverse teams across the globe in envisaging and building pioneering telecommunication products. He specializes in DevOps and cloud solution delivery, with a focus on data center optimization, Software-defined Environments (SDEs), and distributed application development, deployment, and delivery using the newest Docker technology. Jeeva is also a strong proponent of agile methodologies, DevOps, and IT automation. He holds a master’s degree in computer science from Manonmaniam Sundaranar University and a graduate certificate in project management from Boston University. He has been instrumental in crafting reusable assets for IBM solution architects and consultants in Docker-inspired containerization technology.

Vinod Singh held various positions across development, architecture, and engagement with clients throughout his career. Currently, he is a senior cloud architect with IBM’s cloud flagship offering Bluemix, supporting customers across the world. Vinod’s experience with networking and data communication spans software design, development, and testing. The cloud, cognitive computing, and Linux are his passions, and he feels cognitive computing is once again going to change the world. Vinod is a regular speaker at IBM’s internal conferences, IEEE conferences, and technology meetups. Vinod’s latest day job revolves around IBM Bluemix, Kubernetes, Docker, IBM Watson and Amazon AWS.