Book Image

AWS for System Administrators

By : Prashant Lakhera
Book Image

AWS for System Administrators

By: Prashant Lakhera

Overview of this book

Amazon Web Services (AWS) is one of the most popular and efficient cloud platforms for administering and deploying your applications to make them resilient and robust. AWS for System Administrators will help you to learn several advanced cloud administration concepts for deploying, managing, and operating highly available systems on AWS. Starting with the fundamentals of identity and access management (IAM) for securing your environment, this book will gradually take you through AWS networking and monitoring tools. As you make your way through the chapters, you’ll get to grips with VPC, EC2, load balancer, Auto Scaling, RDS database, and data management. The book will also show you how to initiate AWS automated backups and store and keep track of log files. Later, you’ll work with AWS APIs and understand how to use them along with CloudFormation, Python Boto3 Script, and Terraform to automate infrastructure. By the end of this AWS book, you’ll be ready to build your two-tier startup with all the necessary infrastructure, monitoring, and logging components in place.
Table of Contents (18 chapters)
1
Section 1: AWS Services and Tools
4
Section 2: Building the Infrastructure
7
Section 3: Adding Scalability and Elasticity to the Infrastructure
11
Section 4: The Monitoring, Metrics, and Backup Layers

Introduction to SNS

SNS is a web service that helps you automate sending an email or text message notifications based on events (for example, stopping an EC2 instance or deleting a Simple Storage Service (S3) bucket) that happen in your AWS account. It's a fully managed publish/subscribe (pub/sub) messaging service that lets you send messages to many recipients at once, using topics.

AWS SNS has the following two major components:

  • Publisher (producers): The publisher's responsibility is to produce and send a message to the topic, which acts as a logical access point.
  • Subscriber (consumers): The consumer consumes or receives the message or notification over one of the supported protocols (for example, email, SNS, SQS, or Lambda) when they are subscribed to the topic.

Now, you understand what SNS is. To get started with SNS, you need to follow this series of steps:

  1. Go to the SNS console at https://us-west-2.console.aws.amazon.com/sns/v3/home and...