Book Image

Docker Bootcamp

By : Russ McKendrick, Pethuru Raj, Jeeva S. Chelladhurai, Vinod Singh
Book Image

Docker Bootcamp

By: Russ McKendrick, Pethuru Raj, Jeeva S. Chelladhurai, Vinod Singh

Overview of this book

<p>Docker allows you to create a robust and resilient environment to generate portable, composable, scalable, and stable application containers.</p> <p>The book starts by installing the core Docker Engine on MacOS, Windows 10 and Linux desktops. We will then define multi-container applications and understand the advantages of using containers locally. Once this is done, we will deploy containers on a single Docker host which is publicly accessible. Furthermore, we will learn how to deploy and configure a Docker Swarm cluster and explore networking and storage third-party plugins to extend the core Docker functionality. Towards the end, the book will demonstrate how to monitor and troubleshoot day-to-day problems in addition to various real world examples of container deployments.</p>

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Table of Contents (15 chapters)
Docker Bootcamp
Docker Bootcamp
Credits
Credits
About the Authors
About the Authors
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Customer Feedback
Customer Feedback
Preface
Preface
Free Chapter
1
Installing Docker Locally
Installing Docker Locally
Docker for Mac and Windows
Docker on Ubuntu 16.04
Testing your installation
Summary
2
Launching Applications Using Docker
Launching Applications Using Docker
Docker terminology
Controlling Docker containers
Running a WordPress container
Docker Compose
Docker Build
A quick overview of the Dockerfile's syntax
The Dockerfile build instructions
Customizing existing images
Sharing your images
Summary
3
Docker in the Cloud
Docker in the Cloud
Docker Machine
The Digital Ocean driver
The Amazon Web Services driver
The Microsoft Azure driver
References
Summary
4
Docker Swarm
Docker Swarm
Creating a Swarm manually
Launching a service
Launching a stack
Docker for Amazon Web Services
Docker for Azure
Summary
5
Docker Plugins
Docker Plugins
REX-Ray volume plugin
WeaveNetwork Plugin
Summary
6
Troubleshooting and Monitoring
Troubleshooting and Monitoring
Troubleshooting containers
Debugging a Dockerfile
Monitoring containers
Summary
7
Putting It All Together
Putting It All Together
Workflows
Describing containers
Describing Docker
Virtual Machines versus containers
The Docker use cases
Summary
Index
Index

Creating a Swarm manually

At the start of Chapter 3, Docker in the Cloud we looked at using a Docker Machine to launch a Docker host in Digital Ocean. We are going to start with Digital Ocean again, but this time we are going to launch three hosts and then create a Docker Swarm cluster on them.

To start off with we need to launch the hosts and to do this, run the following commands, remembering to replace the Digital Ocean API access token with your own:

docker-machine create \
    --driver digitalocean \
    --digitalocean-access-token 57e4aeaff8d7d1a8a8e46132969c2149117081536d50741191c79d8bc083ae73 \
    swarm01

docker-machine create \
    --driver digitalocean \
    --digitalocean-access-token 57e4aeaff8d7d1a8a8e46132969c2149117081536d50741191c79d8bc083ae73 \
    swarm02

docker-machine create \
    --driver digitalocean \
    --digitalocean-access-token 57e4aeaff8d7d1a8a8e46132969c2149117081536d50741191c79d8bc083ae73 \
    swarm03

Once launched, running docker-machine ls should show...

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