To get the most out of this book

While a simple reading of the book will impart the different architectural and cloud concepts to the reader, in order to follow along, ensure that you have the following:

• An internet connection to download the software.
• A Ubuntu 16.04 machine to act as the management system.
• A fully functioning OpenStack deployment or a Ubuntu 16.04 machine to run DevStack.
• AWS user account—if you don't have the user account, ensure that you have your credit card ready in order to open a free account. (Remember that while we have taken care to use the free-tier systems in AWS, make sure you use the appropriate instance sizes and AMI IDs if you are creating the environment in a different region). 

Download the example code files

You can download the example code files for this book from your account at www.packtpub.com. If you purchased this book elsewhere, you can visit www.packtpub.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packtpub.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Hybrid-Cloud-for-Architects. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Download the color images

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here: https://www.packtpub.com/sites/default/files/downloads/HybridCloudforArchitects_ColorImages.pdf.

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Default values are port 80 for HTTP, port 443 for HTTPS."

A block of code is set as follows:

provider "aws" {
 access_key = "<Enter Access Key Here>"
 secret_key = "<Enter Secret Key Here>"
 region = "us-east-1"
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

provider "aws" {
 access_key = "<Enter Access Key Here>"
 secret_key = "<Enter Secret Key Here>"
 region = "us-east-1"
}

Any command-line input or output is written as follows:

sudo cp terraform /usr/local/bin

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Gartner introduced the Bimodal IT concept and coined two terms called mode-1 and mode-2 of the development."

Warnings or important notes appear like this.

Tips and tricks appear like this.