This repository stores the terrraform for the 10.204/12 network.

Guidance material

• Hashicorp's best practices

• Organisation Module Hirarchy here

Repo layout

• The modules folder contains the reuseable code that defines resources
• The providers folder contains the code that calls the modules, using variables to differentiate between enviroments and projects

How to

Modifying an environment

1. Navigate to the aws account (environment) you want to apply changes to
   • e.g providers/aws/dev/
2. Run terraform init to get the modules and configure the remote state
3. Run terraform plan to plan the changes, note what is changing and be sure you want to maken those changes
4. Run terraform apply to apply the changes.

Modifying modules

Ideally before you apply changes, you will test the modules in the test account. This is highlighted in the Terraform best practices documentation.

Folder structure

/modules

Put your modules in here.

/providers/aws

This contains one folder per project. If you want to test some code, then put it in a project/test subfolder. Here it will be planned by make, but not applied.

.
├── README.md
├── circle.yml
├── modules
│   ├── management
│   │   └── main.tf
│   ├── product_module
│   │   └── main.tf
│   └── test
│       ├── management
│       │   └── main.tf
│       └── product_module
│           └── main.tf
└── providers
    └── aws
        ├── dev
        │   ├── config
        │   │   └── ci_override.tf
        │   └── main.tf
        ├── management
        │   ├── config
        │   │   └── ci_override.tf
        │   └── main.tf
        ├── prod
        │   ├── config
        │   │   └── ci_override.tf
        │   └── main.tf
        └── staging
            ├── config
            │   └── ci_override.tf
            └── main.tf