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

Setting up Auto Scaling

Before we add our application to the Auto Scaling group, review your application thoroughly, and consider the following points:

  • What are the existing resources your application will use, for example, Amazon Machine Images (AMIs) or security groups?
  • Is your application spread across multiple Availability Zones?
  • Do you need to scale in (decrease capacity) or scale out (increase capacity), or does your application always run with a steady load?
  • What metrics are relevant for your application's performance?
  • How long will it take to configure and launch your server?

Once you have reviewed all of the preceding points and decided that Auto Scaling is appropriate for your application, it's time to create a new launch template.

Creating a launch template

To configure EC2 instances launched by an Auto Scaling group, we need to create a launch template. A launch template contains information about AMIs, security groups, instance...