olevett / delta-common-infrastructure

This repository contains Terraform configuration for the infrastructure for data collection as a service, which consists of Delta, the Common Payments Module, and potentially e-claims in the future.

Infrastructure specific to an individual application should live in its own codebase, but shared resources like AWS SES or the shared VPC will be defined here.

Repository contents

• docs - any documentation relevant to the shared infrastructure or this repository
  • adr - Architecture Decision Records
  • diagrams - architecture diagrams
• terraform - all of the Terraform code
  • modules - reusable Terraform config that can be shared between environments
  • test, staging, production - Terraform root modules for each of the three environments
  • backend - configuration for the resources that will store the remote state

CI/CD

GitHub Actions is the CI/CD platform of choice for minimal maintenance, plus it is used elsewhere in the department.

• A workflow validates all of the terraform config in all pull requests
• When the main branch is updated, a workflow will
  • Run terraform plan for the test environment
  • After a reviewer approves the plan, run terraform apply for the test environment
  • After that completes successfully, repeat for the next environment (test -> staging -> production)

The terraform.yml workflow could be reused by other Git repositories, but may need to be enhanced with e.g. a continuous deployment option.