Book Image

Learn Docker - Fundamentals of Docker 19.x - Second Edition

By : Dr. Gabriel N. Schenker
Book Image

Learn Docker - Fundamentals of Docker 19.x - Second Edition

By: Dr. Gabriel N. Schenker

Overview of this book

Containers enable you to package an application with all the components it needs, such as libraries and other dependencies, and ship it as one package. Docker containers have revolutionized the software supply chain in both small and large enterprises. Starting with an introduction to Docker fundamentals and setting up an environment to work with it, you’ll delve into concepts such as Docker containers, Docker images, and Docker Compose. As you progress, the book will help you explore deployment, orchestration, networking, and security. Finally, you’ll get to grips with Docker functionalities on public clouds such as Amazon Web Services (AWS), Azure, and Google Cloud Platform (GCP), and learn about Docker Enterprise Edition features. Additionally, you’ll also discover the benefits of increased security with the use of containers. By the end of this Docker book, you’ll be able to build, ship, and run a containerized, highly distributed application on Docker Swarm or Kubernetes, running on-premises or in the cloud.
Table of Contents (25 chapters)
1
Section 1: Motivation and Getting Started
4
Section 2: Containerization, from Beginner to Black Belt
11
Section 3: Orchestration Fundamentals and Docker Swarm
18
Section 4: Docker, Kubernetes, and the Cloud

Chapter 2

Here are some sample answers to the questions presented in this chapter:

  1. docker-machine can be used for the following scenarios:
    1. To create a VM on various providers such as VirtualBox, Hyper-V, AWS, MS Azure, or Google Compute Engine that will serve as a Docker Host.
    2. To start, stop, or kill a previously generated VM.
    3. To SSH into a local or remote Docker Host VM created with this tool.
    4. To re-generate certificates for the secure use of a Docker Host VM.
  2. A. True. Yes, with Docker for Windows, you can develop and run Linux containers. It is also possible, but not discussed in this book, to develop and run native Windows containers with this edition of Docker for Desktop. With the macOS edition, you can only develop and run Linux containers.

 

  1. Scripts are used to automate processes and hence avoid human errors. Building, testing, sharing, and running Docker...