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

Protecting your EC2 instances and EBS volumes using termination protection

You can always delete an EC2 instance that is no longer needed, and the process is called terminating your instance. Simultaneously, you need to be very careful not to accidentally delete any instance in use, as this will cause downtime. This is where enabling instance termination protection comes in handy.

By default, you can delete any instance using the following:

  • EC2 console
  • AWS command-line interface (CLI)
  • Application Programming Interface (API)

We can use the DisableApiTermination attribute to control whether we can terminate the instance using the console, the AWS CLI, or an API. This attribute can be set at the following times:

  • During instance launch
  • When the instance is running (for EBS-backed instance)
  • While the instance is in a shutdown state

To enable termination protection of a running instance, proceed as follows:

  1. Go to the EC2 console at...