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About

I was unable to find a working, whole, end-to-end example of this on the interwebs. So I made one.

Use Terraform to deploy infrastructure for AWS Fargate and use CircleCI to deploy to said infrastructure.

Creates these resources in AWS:

  • VPC (subnets, security groups, routes, internet gateway)
  • ALB (listener and target group)
  • ECS (cluster, task definition)
  • ECR repo
  • IAM roles

WARNINGS:

  • Running terraform apply with these templates will cost some money. I've attempted to keep the resources used to a bare minimum while still being functional.
  • This does not use a private subnet, elastic IPs, or NAT gateways like most of the examples out there (which may be pertinent for resource isolation/etc)
  • Running terraform destroy isn't clean (yet). See TODO section below
cd terraform
cp terraform.tfvars.dist terraform.tfvars
vim terraform.tfvars  # add your aws access/secret keys. terraform.tfvars is .gitignore'd
terraform init
terraform apply  # outputs elb cname
cd ..
# add project in CircleCI
# add environment variables (AWS_ACCOUNT_ID, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_DEFAULT_REGION, AWS_RESOURCE_NAME_PREFIX) to CircleCI project settings
# (hackhackhack)
git add .
git commit -m "hail eris!"
git push
# wait for cci and aws hamsters to turn some wheels
curl http://<alb_cname>/

TODO:

  • figure out why destroying isn't clean (may need to manually stop ECS tasks and deregister task definitions?? also manually delete security group?)
  • abstract more stuff to variables
  • add comments/descriptions
  • access logs/etc
  • health checks
  • tags
  • another version of this using EKS