This repository is a part of my GitHub Actions: CI/CD and GitOps project. It contains terraform files that will create a custom VPC, subnets, and a three-node EKS cluster. All of this will be provisioned using GitHub Actions. I have made every necessary file public, so you can follow along and test this project as well.

• /.github/workflows: GitHub actions file
• /terraform: Terraform files

• AWS CLI Setup
• Terraform CLI Setup
• GitHub Account

• AWS (EKS, S3)
• Terraform
• GitHub Actions

git clone https://github.com/YU88John/eks-ecr-gitops-tf.git

The GitHub Actions will be triggered based on the push events to /terraform directory.

We need terraform state to keep track of the state of actual infrastructure. If we don't have a state file, a whole new infrastructure will be created every time the push event occurs. Read more about this.

For this project, we will create an S3 bucket to store that terraform state file. You can create via cli:

aws s3 mb --region us-east-1 s3://<your_unique_name>

To apply terraform from GitHub Actions, it needs permissions on AWS resources. Moreoever, the bucket name will also be fetched as a Secret. Create GitHub Secrets with the following keys and your respective values.

• How to Create Access Keys
• How to add Secrets in GitHub Actions

AWS_ACCESS_KEY_ID

AWS_SECRET_ACCESS_KEY

BUCKET_TF_STATE

You need to replace your values in /terraform/terraform.tf. The snippet is as below:

backend "s3" {
    bucket = ""
    key    = "terraform.tfstate"
    region = "us-east-1"
  }