A tool to provision a Scenario 2 VPC in AWS that will run N number of instances, all running the Docker "Hello World" image.

This tool uses Terraform to create a Scenario 2 VPC and based on the requested parameters 'N'; creates N instances in the VPC each running Docker. The hello-world image is installed and its output is returned to an output.txt file at run time.

Notes

• Created using the AWS free tier
• Uses EC2 t2.micro instances running Amazon Linux AMI 2017.09.1 (HVM), SSD Volume Type (AMI ID as on 1/28/2018: ami-f63b1193)
• Default Region and Availability zone: us-east-2a
• Scenario 2 VPC created using terraform-aws-modules/vpc/aws

The Scenario 2 VPC has the following configuration (defined in the vpc.tf file)

• Main CIDR block: 10.0.0.0/16
• Public CIDR block: 10.0.1.0/24
• Private CIDR block: 10.0.2.0/24
• A NAT gateway

Steps

1. Copy this repository

2. Initialize Terraform

terraform init

3. Use the following single line command to run the tool

terraform apply \
-var 'access_key=<your_access_key>' \
-var 'secret_key=<your_secret_key>' \
-var 'n=<no_of_instances>'

Arguments

• access_key: your AWS access key
• secret_key: your AWS secret key
• N: number of instances to be provisioned

4. Destroy the infrastructure

terraform destroy  \
-var 'access_key=<your_access_key>' \
-var 'secret_key=<your_secret_key>'

DO remember to run terraform destroy to remove all created resources so as to not incur any charges on your AWS account