Provisioning the infrastructure¶

This OpenTofu configuration manages the QueFaireDeMesObjets infrastructure on Scaleway.

Scaleway¶

All resources on Scaleway are provisioned in the organization Incubateur ADEME (Pathtech) and the project longuevieauxobjets.

All resources are named following the pattern lvao-{env}-{explicit-name} (for example: lvao-prod-webapp-db).

OpenTofu & Terragrunt¶

We use OpenTofu, the open-source version of Terraform, to automate infrastructure provisioning. Follow the documentation to install OpenTofu.

Terragrunt is used alongside OpenTofu to keep the configuration DRY. Follow the documentation to install Terragrunt.

The configuration is defined in the infrastructure directory.

Prerequisites¶

Install and configure the Scaleway CLI by following Scaleway’s instructions.

Make sure you have administration rights on the project targeted by this infrastructure plan.

IaC: Infrastructure as Code¶

Structure¶

infrastructure/
├── environments/
│   ├── prod/
│   │   ├── terragrunt.hcl
│   │   ├── terraform.tfvars.example
│   │   └── terraform.tfvars -> not versioned
│   ├── preprod/
│   └── preview/
└── modules/
    ├── database/
    │   ├── main.tf
    │   ├── variables.tf
    │   └── outputs.tf
    └── provider/

Configuration¶

  1. Copy environments/<ENV>/terraform.tfvars.example to terraform.tfvars.

  2. Edit the values in terraform.tfvars with your information:

    • project_id: Scaleway project ID

    • organization_id: Scaleway organization ID

    • db_password: secure password for the database

    • 


Execution¶

tfstate¶

⚠ The Terraform state is stored in a Scaleway S3 bucket: s3://lvao-terraform-state.

Per environment¶

The preview environment is used to test our IaC project. We intentionally destroy the infrastructure created in this environment once the Terraform configuration has been tested.

For each environment:

  • Preprod: infrastructure/environments/preprod at the repository root

  • Prod: infrastructure/environments/prod at the repository root

Change directory to infrastructure/environments/<ENV> and run:

terragrunt init -reconfigure --all

terragrunt plan --all

terragrunt apply --all

For each command, the environment must be specified.