This module will allow you to deploy an application load balancer intended for use with an ECS Service. This is intended to be run as part of your app deployment pipeline. It works well with Concourse. It is assumed you already have a solution for deploying the ECS Service. If not, check out ours. This particular iteration assumes that you are deploying applications behind a load balancer with SSL termination and redirection from port 80.
First, you need a decent understanding of how to use Terraform. Hit the docs for that. Then, you should familiarize yourself with ECS concepts, especially if you've never worked with a clustering solution before. Once you're good, import this module and pass the appropriate variables. Then, plan your run and deploy.
We also assume that you're deploying an application behind an ALB to port 443 (a really good idea). We will ask for your certificate ARN and automagically configure an HTTP to HTTPS redirect on the ALB. If you need more interesting features like opening ports other than 80 and 443 then feel free to use this as a template.
module "external_alb" {
source = "7Factor/app-load-balancer/aws"
version = "1.0.0"
cluster_name = var.cluster_name
app_name = var.app_name
security_groups = [data.aws_security_group.primary_sg.id]
subnets = data.aws_subnet_ids.subnet_ids.ids
certificate_arn = data.aws_acm_certificate.lb_cert.arn
target_group_arn = module.http_task.lb_target_group_arn # From the 7Factor/http-ecs-task/aws module
}