writeClearly / aws_ecs_app_on_custom_domain

ECS service on custom domain

aws_ecs_app_on_custom_domain

What does it do?

Deploys application from ECR registry, configures load balancing and exposes config to outside world with redirection HTTP -> HTTPS

Features

• Configurable containers resources in the Fargate
• Application load balancer between two availability zones
• Binding custom domain to the load balancer
• Enabled SSL with termination on load balancer
• Invisible upgrading HTTP request to HTTPS
• Remote .tfstate in AWS s3

Prerequirements

• terraform >= 0.12
• aws-cli with configured credentials
• configured hosted zone in route53
• your web-app image in ECR with exposed 80
• ssl certificate signed by Amazon covering your desired domain

Tips:

1. At the time of writing terraform doesn't support input variables in backend, thus to init terraform you need to edit backend.tfvars
   with your s3 bucket configuration and then run terraform init --backend-config=backend.tfvars
2. Any variable from aws_variables.tf may be overwritten by creating terraform.tfvars
   For example if you wish to set region to the Asia

#terraform.tfvars
region = {"cheapest" : "ap-southeast-1"}

3. You need to specify all attributes when overriding variables from aws_variables.tfvars in terraform.tfvars
   Otherwise you'll run into "The given key does not identify an element in this collection value."

#terraform.tfvars
ecs_route53_record = { 
        "zone_id" : "i4k1agpo2"
        # "name"   : "YOU_DID_NOT_SPECIFY"
        }
        
#######
# $ terraform apply
# ERROR The given key "name" does not identify an element in this collection value.