Book Image

AWS Administration Cookbook

By : Rowan Udell, Lucas Chan
Book Image

AWS Administration Cookbook

By: Rowan Udell, Lucas Chan

Overview of this book

Amazon Web Services (AWS) is a bundled remote computing service that provides cloud computing infrastructure over the Internet with storage, bandwidth, and customized support for application programming interfaces (API). Implementing these services to efficiently administer your cloud environments is a core task. This book will help you build and administer your cloud environment with AWS. We’ll begin with the AWS fundamentals, and you’ll build the foundation for the recipes you’ll work on throughout the book. Next, you will find out how to manage multiple accounts and set up consolidated billing. You will then learn to set up reliable and fast hosting for static websites, share data between running instances, and back up your data for compliance. Moving on, you will find out how to use the compute service to enable consistent and fast instance provisioning, and will see how to provision storage volumes and autoscale an application server. Next, you’ll discover how to effectively use the networking and database service of AWS. You will also learn about the different management tools of AWS along with securing your AWS cloud. Finally, you will learn to estimate the costs for your cloud. By the end of the book, you will be able to easily administer your AWS cloud.
Table of Contents (16 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Creating a key pair


A key pair is used to access your instances via SSH. This is the quickest and easiest way to access your instances.

Getting ready

To perform this recipe, you must have your AWS CLI tool configured correctly.

How to do it...

  1. Create the key pair, and save it to disk:
      aws ec2 create-key-pair \
        --key-name MyEC2KeyPair \
        --query 'KeyMaterial' \
        --output text > ec2keypair.pem
  1. Change the permissions on the created file:
        chmod 600 ec2keypair.pem

How it works...

This call requests a new private key from EC2. The response is then parsed using a JMESPath query, and the private key (in the KeyMaterial property) is saved to a new key file with the .pem extension.

Finally, we change the permissions on the key file so that it cannot be read by other usersthis is required before SSH will allow you to use it.