Book Image

Docker Cookbook - Second Edition

By : Ken Cochrane, Jeeva S. Chelladhurai, Neependra K Khare
2 (1)
Book Image

Docker Cookbook - Second Edition

2 (1)
By: Ken Cochrane, Jeeva S. Chelladhurai, Neependra K Khare

Overview of this book

Docker is an open source tool used for creating, deploying, and running applications using containers. With more than 100 self-contained tutorials, this book examines common pain points and best practices for developers building distributed applications with Docker. Each recipe in this book addresses a specific problem and offers a proven, best practice solution with insights into how it works, so that you can modify the code and configuration files to suit your needs. The Docker Cookbook begins by guiding you in setting up Docker in different environments and explains how to work with its containers and images. You’ll understand Docker orchestration, networking, security, and hosting platforms for effective collaboration and efficient deployment. The book also covers tips and tricks and new Docker features that support a range of other cloud offerings. By the end of this book, you’ll be able to package and deploy end-to-end distributed applications with Docker and be well-versed with best practice solutions for common development problems.
Table of Contents (13 chapters)

Discovering and load balancing containers

In the previous recipe, we looked at the benefits of a user-defined bridge network and the steps to create and examine a user-defined bridge network. In this recipe, we will build a container topology, as depicted in the following diagram:

In this topology, we will launch container1 and container2 like a service and use a transient container to demonstrate the following capabilities of the user-defined bridge network:

  • Service discovery through an embedded DNS server
  • DNS-based load balancing

Getting ready

Before we begin, ensure that the Docker daemon is running.

How to do it...

...