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 CloudWatch Events

AWS CloudWatch Events are similar to alarms but instead of configuring alarms or thresholds, they match event patterns. These event patterns can relate to EC2 state change, a file upload to an S3 bucket, Key Management Service (KMS) key deletion, and so on. You can create CloudWatch Events rules that match the event pattern and take actions in response to those patterns. The following events are some of those supported by CloudWatch Events:

  • EC2 state change
  • Application programming interface (API) call reported by CloudTrail

CloudWatch Events provide a near-real-time stream of system events, and to configure it, we need to follow this series of steps:

  1. Go back to the CloudWatch console at https://us-west-2.console.aws.amazon.com/cloudwatch/home, then click on Rules and Create rule, as illustrated in the following screenshot:
    Figure 8.16 – AWS CloudWatch Events

    Figure 8.16 – AWS CloudWatch Events

    CloudWatch Events rules are used to trigger events emitted...