Gain insights into Docker, its impact on development, and why it's essential. Learn about creating, deploying, and running applications with containers to enhance your software and career.

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By now, you've probably heard the buzz around Docker. It's fundamentally changed the development process and been adopted by software teams of all sizes, and for good reason: Docker makes it considerably easier to create, deploy, and run applications with the use of containers.

Docker is here to stay, and is becoming one of the most in-demand technologies on the market. Mastering it now will help you produce better software, level up your career, and stand out from the crowd. Get started today.

Docker for Developers

Ability to store various tags for the same image

TLS-secured connection to the API in order to avoid man-in-the-middle attacks

Which of the following functions are not offered by Docker Registry?

Which of the following functions are not offered by Docker Registry?

A private registry ensures that only you can access your private images, while a public registry allows everyone to access your images

A private registry allows you to pick and choose who would have access to your private images while a public registry gives allows everyone to access your private images

A private registry ensures that only you can access your private images, while a public registry allows you to make your private images public for selective parties

What is the difference between a public and private registry?

What is the difference between a public and private registry?

Use a minimum amount of space in the Registry

Use a minimum amount of space on the machines that will run the containers

Use a minimum amount of space on the machine that creates the image

Which of the following is true when you reduce the size of an image?

Which of the following is true when you reduce the size of an image?

1. Base image version
2. Number of files in your image
3. Image layers

1. Base image size
2. Number of files in your image
3. Image layers

1. Base image size
2. Types of files in your image
3. Image layers

Which list of factors influences the size of an image?

Which list of factors influences the size of an image?

It does not take a lesser amount of time to rebuild an image

If it takes a lesser amount of time to rebuild an image it means that it has not been built correctly

Because of the image layers which are cached during the initial build (after each instruction the partial image is cached creating image layers)

Why is it that when we rebuild an image, it takes a lesser amount of time as compared to the first time we built it?

Why is it that when we rebuild an image, it takes a lesser amount of time as compared to the first time we built it?

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Now that we know how to publish a Docker image, let's take a further look at some of the benefits of Docker in the next chapter.

In the following quiz, you will be tested on concepts you learned in this chapter.


Before Getting Started

Why Docker?

Get Docker up and Running

Basic Concepts

Use Docker Images

Create Docker Images

Publish Docker Images

Forget SDK Installs

Docker with Common Development Profiles

More About Running Containers

Quiz