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terraform-examples's Introduction

Examples

App Load Balancer + Auto Scaling Group example

On Subdir app-load-balancer-ec2/ an Application Load Balancer + Auto Scaling Group has been used to create a Highly Available application. Which uses Launch Templates to auto scale EC2 instances.

Auto Scaling is triggered by CloudWatch Events depending on CPU usage:

  • Over 60% CPU usage, increases instances.
  • Under 10% CPU usage, decreases instances.

Amount of Availability Zones and Subnets to deploy the app will be easily defined by variable subnetsCount.

diagram.png

Todo infrastructure ideas:

  • A static website hosted in S3 and available to public.
  • A high availability (multi Availability Zone) app with Auto Scaling Group of EC2 instances.
  • A 3 tier architecture app: web -> backend -> database
  • A serverless app
  • A replicated MongoDB atlas cloud.
  • Make a Bastion

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