The software required for this book are as follows:

• AWS Management Console
• AWS compute services
• AWS IAM
• AWS CLI setup
• JavaScript for the web application

You can download the example code files for this book from your account at www.packt.com. If you purchased this book elsewhere, you can visit www.packt.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.packt.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/Effective-DevOps-with-AWS-Second-Edition. 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! 

The codes can also be found at following repositories:

• https://github.com/yogeshraheja/Effective-DevOps-with-AWS
• https://github.com/giuseppeborgese/effective_devops_with_aws__second_edition

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/9781789539974_ColorImages.pdf.

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: "Click on the start button and search for settings option."

A block of code is set as follows:

var http = require("http") http.createServer(function (request, response) {
// Send the HTTP header
// HTTP Status: 200 : OK
// Content Type: text/plain
response.writeHead(200, {'Content-Type': 'text/plain'})
// Send the response body as "Hello World" response.end('Hello World\n')
}).listen(3000)

// Console will print the message console.log('Server running')

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

$ aws ec2 describe-instance-status --instance-ids i-057e8deb1a4c3f35d --output text| grep -i SystemStatus

SYSTEMSTATUS ok

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

$ aws ec2 authorize-security-group-ingress \
   --group-name HelloWorld \
   --protocol tcp \
   --port 3000 \
   --cidr 0.0.0.0/0

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: "In this menu, find the feature called Windows Subsystem for Linux (Beta)."