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)

Creating an image from the container

There are a couple of ways to create images. One is by manually making changes inside a container and then committing the image. The other is to build one using a Dockerfile. In this recipe, we'll look at the former recipe and look at Dockerfiles later in the chapter.

As we start a new container, a read/write layer gets attached to it. This layer will get destroyed if we do not save it. In this recipe, we will learn how to save that layer and make a new image from the running or stopped container using the docker container commit command. The following is the syntax for the docker container commit command:

    $ docker container commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]

Getting ready

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