Terraform - Auto Scaling ECS NGINX Cluster

Description

Terraform is an infrastructure as code (IaC) that can help you to manage your infrastructure with configuration files and cli

How does it work

Terraform has many provider that can connect the terraform itself and the service such as AWS, Azure, GCP, k8s and many more.

It can manage your infrastructure such as

1. Making new contiainers
2. Adding policies to service
3. Creating auto scaling
4. And many more!

Requirements

1. Terraform
2. Prefered provider (In this case AWS)

How to run

1. Install terraform by following the guide in the requirements
2. Clone the repository using git clone https://github.com/IloveNooodles/Terraform-ECS-Nginx-Cluster or download the zip version
3. Generate Access key and Secret key and if you don't understand what it is please refer to this document
4. Create terraform.tvars by copying terraform.tfvars.example
5. Fill your prefered-region (default: us-east-1)
6. Fill the aws_access_key_id and aws_secret_access_key that you got from the aws website
7. Run terraform init to create terraform.lock file
8. Run terraform plan to create the build plan
9. If you satisfied with the current plan you can run terraform apply to create your configuration in your provider
10. If apply is successful then console will output the url you can visit!

...SNIP...
Apply complete! Resources: 28 added, 0 changed, 0 destroyed.

Outputs:

alb_hostname = "nginx-load-balancer-559564577.us-east-1.elb.amazonaws.com"

11. Run terraform destroy to destory all the instance.

Note: all variables defined in the variables.tf and it can be changed or provide it with the same name in .tfvars if you're not satisfied with the configuration

References

1. AWS User policy
2. AWS Provider
3. Terraform configuration
4. Auto scaling policies
5. Amazon Cloudwatch