Book Image

Developing with Docker

By : Jaroslaw Krochmalski, Jarosław Krochmalski
Book Image

Developing with Docker

By: Jaroslaw Krochmalski, Jarosław Krochmalski

Overview of this book

This fast-paced practical guide will get you up and running with Docker. Using Docker, you will be able to build, ship, and run many distributed applications in real time. You will start with quickly installing Docker and start working with images and containers. We will present different types of containers and their applications, and show you how to find and build images. You will learn how you can contribute to the image repository by publishing different images. This will familiarize you with the image building process and you will be able to successfully run your programs within containers. By finishing this book, you will be well equipped in deploying your applications using Docker and will have a clear understanding of concepts, techniques, and practical methods to get it running in production systems.
Table of Contents (16 chapters)
Developing with Docker
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

The Docker Hub


The main functionality of the Docker registry is to find a certain image based on a description. The registry handles Docker Images in repositories. It's important to understand the difference between registry and repository. Docker registry is a service that is storing your Docker Images, and repository is a collection of different docker images with the same name, which have different tags (we will get back to tags in a while). Like the git counterpart, a Docker repository is identified by a URI and can either be public or private.

The most recognized hosted version of a Docker registry is the Docker Hub. It comes with a nice and usable UI. The Docker Hub is a software-as-a service (SaaS) platform for sharing and managing Docker images. In other words, it's a cloud-based registry service capable of hosting and distributing images. Images are being kept either in public or private repositories. Currently, the Hub serves hundreds of thousands public repositories and the number...