Replace the variables at the top of main.tf: the VPC ID, private subnets and public subnets.
Then run terraform apply
Wait a few minutes, then look at the ECS cluster page in AWS Console. Ensure everything is running. You can view browser logs in Cloudwatch.
Grab the output laod balancer DNS address. Then run a test
npm install smashtest
npx smashtest --test-server=http://your-load-balancer-12345.eu-west-1.elb.amazonaws.com/wd/hub --max-parallel=7
Run terraform destroy to tear down the infrastructure created here.
More info available in the writeup