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Configuring Two EC2 instances in Two Regions using Terraform on LocalStack

This guide will walk you through the steps to configure two EC2 instances in two different AWS regions using Terraform and running it on LocalStack.

Prerequisites

  • LocalStack setup and running on your machine.
  • Terraform installed on your machine.
  • AWS CLI installed and configured on your machine

Step 1: Review of Main.tf file

Step 2: Run Terraform Commands

Now, go to the terminal and navigate to the directory where you have saved the main.tf file. Run the following commands:

terraform init
terraform plan
terraform apply --auto-approve

Step3: Review the outputs in Localstack

Now , Run the command to check if 2 instances are created in 2 different AWS regions

For Region US-EAST-1

aws --endpoint-url=http://localhost:4566 ec2 describe-instances --query 'Reservations[].Instances[].[InstanceId,InstanceType,PublicIpAddress,Tags[?Key==`Name`]| [0].Value]' --output table --region us-east-1

For Region US-EAST-2

aws --endpoint-url=http://localhost:4566 ec2 describe-instances --query 'Reservations[].Instances[].[InstanceId,InstanceType,PublicIpAddress,Tags[?Key==`Name`]| [0].Value]' --output table --region us-east-2