Book Image

Hybrid Cloud for Developers

By : Manoj Hirway
Book Image

Hybrid Cloud for Developers

By: Manoj Hirway

Overview of this book

This book introduces you to the hybrid cloud platform, and focuses on the AWS public cloud and OpenStack private cloud platforms. It provides a deep dive into the AWS and OpenStack cloud platform services that are essential for developing hybrid cloud applications. You will learn to develop applications on AWS and OpenStack platforms with ease by leveraging various cloud services and taking advantage of PaaS. The book provides you with the ability to leverage the ?exibility of choosing a cloud platform for migrating your existing resources to the cloud, as well as developing hybrid cloud applications that can migrate virtual machine instances from AWS to OpenStack and vice versa. You will also be able to build and test cloud applications without worrying about the system that your development environment supports. The book also provides an in-depth understanding of the best practices that are followed across the industry for developing cloud applications, as well as for adapting the hybrid cloud platform. Lastly, it also sheds light on various troubleshooting techniques for OpenStack and AWS cloud platform services that are consumed by hybrid cloud applications. By the end of this book, you will have a deep understanding of the hybrid cloud platform and will be able to develop robust, efficient, modular, scalable, and ?exible cloud applications.
Table of Contents (16 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Developing Amazon EC2 applications – Unix


Let's start by launching a new EC2 instance using the boto3 library.

Launching an EC2 instance in Python

Launching an EC2 instance using the Python boto3 library hardly takes a few lines of code. You only have to create an instance of the ec2 type using the resource() function of the boto3 library and invoke its create_instances() function. This function takes parameters specific to the instance such as Amazon Machine Image identified, key name, instance type, and so on.

The following simple program will launch the AWS EC2 instance:

import boto3

ec2 = boto3.resource('ec2')

instance = ec2.create_instances(
    ImageId='ami-bf4193c7',
    MinCount=1,
    MaxCount=1,
    KeyName="access",
    InstanceType='t1.micro')
print instance[0].id

Note that the Amazon Machine Image that you specify in the program should be present in the same region that was configured using the aws configure CLI in the beginning of this chapter.

Listing EC2 instances in Python...