Book Image

Learning Docker - Second Edition

By : Vinod Singh, Pethuru Raj, Jeeva S. Chelladhurai
Book Image

Learning Docker - Second Edition

By: Vinod Singh, Pethuru Raj, Jeeva S. Chelladhurai

Overview of this book

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.
Table of Contents (13 chapters)

Running Docker Registry and pushing the image

It is fairly easy to install and run Docker Registry, but operating in a production environment requires other non-functional requirements also such as security, availability, and scalability. Also, logging and log processing, systems monitoring, and Security 101 are the required features for production grade systems. Most of the providers use DTR, as explained earlier in the production system. However, Docker Registry is good enough to use in your non-production environment preferably in the intranet environment.

In this section, we will use the Ubuntu 14.04 machine to install, run, and test Docker Registry. Docker Engine will be installed as described in Chapter 1, Getting Started with Docker. We will perform the following steps to run our own registry, and finally, push the image:

  1. Running Docker Registry on localhost: Like most servers, Docker Registry does not need...