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You're reading from Learning Docker Build, ship, and scale faster

Product type Paperback

Published in May 2017

Publisher

ISBN-13 9781786462923

Length 300 pages

Edition 2nd Edition

Tools

Docker

Concepts

Containerization

Authors (3):

Jeeva S. Chelladhurai

Pethuru Raj

Vinod Singh

View More author details

Table of Contents (13) Chapters

Preface

1. Getting Started with Docker FREE CHAPTER

2. Handling Docker Containers

3. Building Images

4. Publishing Images

5. Running Your Private Docker Infrastructure

6. Running Services in a Container

7. Sharing Data with Containers

8. Orchestrating Containers

9. Testing with Docker

10. Debugging Containers

11. Securing Docker Containers

12. The Docker Platform – Distinct Capabilities and Use Cases

Downloading the first Docker image

Having installed the Docker Engine successfully, the next logical step is to download the images from the Docker Registry. The Docker Registry is an application repository that hosts various applications, ranging from basic Linux images to advanced applications. The docker pull subcommand is used to download any number of images from the registry. In this section, we will download a sample hello-world image using the following command:

$ sudo docker pull hello-world
Using default tag: latest
latest: Pulling from library/hello-world
78445dd45222: Pull complete 
Digest: sha256:c5515758d4c5e1e838e9cd307f6c6a0d620b5e07e6f927b07d05f6d12a1ac8d7
Status: Downloaded newer image for hello-world:latest

Once the images have been downloaded, they can be verified using the docker images subcommand, as shown here:

$ sudo docker images
REPOSITORY    TAG     IMAGE ID         CREATED      VIRTUAL SIZE
hello-world   latest  48b5124b2768     6 weeks ago  1.84 kB

You have been reading a chapter from

Learning Docker - Second Edition

Published in: May 2017

Publisher:

ISBN-13: 9781786462923

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Authors (3)

Pethuru Raj

Pethuru Raj (PhD) works as the chief architect at the Site Reliability Engineering Center of Excellence, Reliance Jio Infocomm Ltd. (RJIL), Bengaluru. Previously, he worked as a cloud infrastructure architect at the IBM Global Cloud Center of Excellence, IBM India, Bengaluru. He also had an extended stint as a TOGAF-certified enterprise architecture consultant in Wipro Consulting's services division and as a lead architect in the corporate research division of Robert Bosch, Bengaluru. He has more than 17 years of IT industry experience and 8 years' research experience.

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Jeeva S. Chelladhurai

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.

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Vinod Singh

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.

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