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Learning Docker

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

Learning Docker

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

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Learning Docker
Pethuru Raj | Jeeva S. Chelladhurai | Vinod Singh | Vinod kumar Singh | Jeeva Chelladhurai | Pethuru Raj Chelliah
Jun, 2015 | 240 pages
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Table of Contents (18 chapters)
Learning Docker
Learning Docker
Credits
Credits
About the Authors
About the Authors
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with Docker
Getting Started with Docker
An introduction to Docker
Docker on Linux
Differentiating between containerization and virtualization
Installing the Docker engine
Understanding the Docker setup
Downloading the first Docker image
Running the first Docker container
Running a Docker container on Amazon Web Services
Troubleshooting
Summary
2
Handling Docker Containers
Handling Docker Containers
Clarifying the Docker terms
Working with Docker images
Working with an interactive container
Summary
3
Building Images
Building Images
Docker's integrated image building system
A quick overview of the Dockerfile's syntax
The Dockerfile build instructions
A brief overview of the Docker image management
Best practices for writing Dockerfiles
Summary
4
Publishing Images
Publishing Images
Understanding the Docker Hub
Pushing images to the Docker Hub
Automating the building process for images
Private repositories on the Docker Hub
Organizations and teams on the Docker Hub
The REST APIs for the Docker Hub
Summary
5
Running Your Private Docker Infrastructure
Running Your Private Docker Infrastructure
The Docker registry and index
Docker registry use cases
Run your own index and registry
Push the image to the newly created Docker registry
Summary
6
Running Services in a Container
Running Services in a Container
A brief overview of container networking
Envisaging the Container as a Service
Exposing container services
Summary
7
Sharing Data with Containers
Sharing Data with Containers
The data volume
Sharing host data
Sharing data between containers
Avoiding common pitfalls
Summary
8
Orchestrating Containers
Orchestrating Containers
Linking containers
Orchestration of containers
Summary
9
Testing with Docker
Testing with Docker
A brief overview of the test-driven development
Testing your code inside Docker
Integrating Docker testing into Jenkins
Summary
10
Debugging Containers
Debugging Containers
Process level isolation for Docker containers
Debugging a containerized application
Installing and using nsenter
Summary
11
Securing Docker Containers
Securing Docker Containers
Are Docker containers secure enough?
Security-Enhanced Linux for container security
The best practices for container security
Digital signature verification
Summary
Index
Index

Automating the building process for images

We learnt how to build images locally and push those images to the Docker Hub. The Docker Hub also has the capability to automatically build the image from Dockerfile kept in the repository of GitHub or Bitbucket. Automated builds are supported on both private and public repositories of GitHub and Bitbucket. The Docker Hub Registry keeps all the automated build images. The Docker Hub Registry is based on open source and can be accessed from https://github.com/docker/docker-registry.

We will discuss the steps needed to implement the automated build process:

  1. We first connect the Docker Hub to my GitHub account.

    Login to the Docker Hub, and click on View Profile and then navigate to Add Repository | Automated Build, as shown in the following screenshot:

  2. We now select GitHub:

  3. Once GitHub is selected, it will ask for authorization. Here, we will select Public and Private, as shown here:

  4. After clicking on Select, it will now show your GitHub repository:

  5. Click...

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