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Learning Docker

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

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Product type Paperback
Published in May 2017
Publisher
ISBN-13 9781786462923
Length 300 pages
Edition 2nd Edition
Tools
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Authors (3):
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Jeeva S. Chelladhurai Jeeva S. Chelladhurai
Author Profile Icon Jeeva S. Chelladhurai
Jeeva S. Chelladhurai
Pethuru Raj Pethuru Raj
Author Profile Icon Pethuru Raj
Pethuru Raj
Vinod Singh Vinod Singh
Author Profile Icon Vinod Singh
Vinod Singh
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Toc

Table of Contents (13) Chapters Close

Preface 1. Getting Started with Docker 2. Handling Docker Containers FREE CHAPTER 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
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