Book Image

Mastering Docker - Third Edition

By : Russ McKendrick, Scott Gallagher
Book Image

Mastering Docker - Third Edition

By: Russ McKendrick, Scott Gallagher

Overview of this book

Docker has been a game-changer when it comes to how modern applications are deployed and created. It has now grown into a key driver of innovation beyond system administration, with an impact on the world of web development. But how can you make sure you're keeping up with the innovations it's driving, or be sure you're using it to its full potential? Mastering Docker shows you how; this book not only demonstrates how to use Docker more effectively, but also helps you rethink and reimagine what's possible with it. You will cover concepts such as building, managing, and storing images, along with best practices to make you confident, before delving more into Docker security. You'll find everything related to extending and integrating Docker in new and innovative ways. Docker Compose, Docker Swarm, and Kubernetes will help you take control of your containers in an efficient manner. By the end of the book, you will have a broad, yet detailed, sense of what's possible with Docker, and how seamlessly it fits in with a range of other platforms and tools.

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Table of Contents (17 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
Docker Overview
Docker Overview
Technical requirements
Understanding Docker
The differences between dedicated hosts, virtual machines, and Docker
Docker installation
The Docker command-line client
Docker and the container ecosystem
Summary
Questions
Further reading
2
Building Container Images
Building Container Images
Technical requirements
Introducing the Dockerfile
Building container images
Summary
Questions
Further reading
3
Storing and Distributing Images
Storing and Distributing Images
Technical requirements
Docker Hub
Docker Store
Docker Registry
Docker Trusted Registry
Third-party registries
Microbadger
Summary
Questions
Further reading
4
Managing Containers
Managing Containers
Technical requirements
Docker container commands
Docker networking and volumes
Summary
Questions
Further reading
5
Docker Compose
Docker Compose
Technical requirements
Introducing Docker Compose
Our first Docker Compose application
Docker Compose YAML file
Docker Compose commands
Docker App
Summary
Questions
Further reading
6
Windows Containers
Windows Containers
Technical requirements
An introduction to Windows containers
Setting up your Docker host for Windows containers
Running Windows containers
A Windows container Dockerfile
Windows containers and Docker Compose
Summary
Questions
Further reading
7
Docker Machine
Docker Machine
Technical requirements
An introduction to Docker Machine
Deploying local Docker hosts with Docker Machine
Launching Docker hosts in the cloud
Using other base operating systems
Summary
Questions
Further reading
8
Docker Swarm
Docker Swarm
Technical requirements
Introducing Docker Swarm
Roles within a Docker Swarm cluster
Creating and managing a Swarm
Managing a cluster
Docker Swarm services and stacks
Deleting a Swarm cluster
Load balancing, overlays, and scheduling
Summary
Questions
Further reading
9
Docker and Kubernetes
Docker and Kubernetes
Technical requirements
An introduction to Kubernetes
Enabling Kubernetes
Using Kubernetes
Kubernetes and other Docker tools
Summary
Questions
Further reading
10
Running Docker in Public Clouds
Running Docker in Public Clouds
Technical requirements
Docker Cloud
Docker on-cloud
Amazon ECS and AWS Fargate
Microsoft Azure App Services
Kubernetes in Microsoft Azure, Google Cloud, and Amazon Web Services
Summary
Questions
Further reading
11
Portainer - A GUI for Docker
Portainer - A GUI for Docker
Technical requirements
The road to Portainer
Getting Portainer up and running
Using Portainer
Portainer and Docker Swarm
Summary
Questions
Further reading
12
Docker Security
Docker Security
Technical requirements
Container considerations
Docker commands
Best practices
The Docker Bench Security application
Third-party security services
Summary
Questions
Further reading
13
Docker Workflows
Docker Workflows
Technical requirements
Docker for development
Monitoring
Extending to external platforms
What does production look like?
Summary
Questions
Further reading
14
Next Steps with Docker
Next Steps with Docker
The Moby Project
Contributing to Docker
The Cloud Native Computing Foundation
Summary
15
Assessments
Assessments
Chapter 1, Docker Overview
Chapter 2, Building Container Images
Chapter 3, Storing and Distributing Images
Chapter 4, Managing Containers
Chapter 5, Docker Compose
Chapter 6, Windows Containers
Chapter 7, Docker Machine
Chapter 8, Docker Swarm
Chapter 9, Docker and Kubernetes
Chapter 10, Running Docker in Public Clouds
Chapter 11, Portainer - A GUI for Docker
Chapter 12, Docker Security
Chapter 13, Docker Workflows
16
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Introducing Docker Swarm

Before we go any further, I should mention that there are two very different versions of Docker Swarm. There was a standalone version of Docker Swarm; this was supported up until Docker 1.12 and is no longer being actively developed; however, you may find some old documentation mentions it. Installation of the standalone Docker Swarm is not recommended as Docker ended support for version 1.11.x in the first quarter of 2017.

Docker version 1.12 introduced Docker Swarm mode. This introduced all of the functionality that was available in the standalone Docker Swarm into the core Docker engine, along with a significant number of additional features. As we are covering Docker 18.06 and higher in this book, we will be using Docker Swarm mode, which, for the remainder of the chapter, we will refer to as Docker Swarm.

As you are already running a version of Docker...

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