Blue/Green deployment provisioning using Terraform

Description

This project is used for automated deployment of VPC, EC2, ALB in AWS using Terraform and a good example of Blue/Green way of deployment with the possibility of Canary Tests. Apache web-server is used for basic http access and demonstration purposes.

Prequesities

• Terraform v1.3.3
• AWS account

HOW-To deploy and use

1. git clone
2. ssh-keygen
3. cd ./jupyterhub
4. aws configure
5. terraform init
6. terraform plan
7. terraform apply
   • You can use either terraform apply and enter one of these options when prompted:
     • blue (100% load to blue)
     • blue-90 (90% load to blue and 10% to green)
     • split (load is split 50/50 % between green and blue)
     • green-90 (10% load to blue and 90% to green)
     • green (100% load to blue)
   • or you can use an option together with terraform apply, for example: terraform apply -var traffic_distribution=blue

Ways to test

1. Using Web Browser
   • Use the output value (DNS name of ALB) and paste it to your browser http://DNS name
   • Press F5 and observe the change in response
2. Using Curl (Recommended)
   • for i in seq {1..10}; do curl $(terraform output -raw elb_dns); done

Destroy after use

terraform destroy