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AWS Tools for PowerShell 6

You're reading from   AWS Tools for PowerShell 6 Administrate, maintain, and automate your infrastructure with ease

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Product type Paperback
Published in Aug 2017
Publisher
ISBN-13 9781785884078
Length 372 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Ramesh Waghmare Ramesh Waghmare
Author Profile Icon Ramesh Waghmare
Ramesh Waghmare
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Table of Contents (17) Chapters Close

Preface 1. PowerShell Essentials FREE CHAPTER 2. The AWS Overview 3. Installing PowerShell Core and AWS Tools 4. AWS Identity and Access Management 5. AWS Virtual Private Cloud 6. AWS Elastic Compute Cloud 7. AWS Simple Storage Service 8. Elastic Load Balancer 9. Auto Scaling 10. Laying Foundation for RDS Databases 11. DB Instance Administration and Management 12. Working with RDS Read Replicas 13. AWS Elastic Beanstalk 14. AWS CloudFormation 15. AWS CloudWatch 16. AWS Resource Auditing

Lifecycle hooks and cooldown

We have seen that health check attributes specified on the load balancer decide whether the EC2 instance is healthy or not. As soon as a health check has been passed, the load balancer starts sending traffic to the EC2 instances, irrespective of whether the application hosted on the EC2 instances is fully configured and installed or not. Often, deploying code and applications take time, and you do not want the load balancer sending traffic until it is fully ready. There is no way for a load balancer to understand whether the EC2 instances are fully configured during bootstrapping. This is where lifecycle hooks play a major role. Lifecycle hooks give us a way to perform actions before an EC2 instance is in InService state, or before an EC2 instance is in Terminated state.

During an EC2 instance launch time, when you add a lifecycle hook to the Auto...

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