terraform-azure-lab

Created as an exercise to:

1. Evaluate usability of ${path.root}/module and ${path.root}/__environment__ directory structure
2. Implement mechansim that allows separate state files for each environment
3. Leverage Azure as a remote-backend for Terraform
4. Minimize initialization needed to setup remote backed for each environment

Project Structure

├── README.md
├── environments
│   └── development
│       ├── main.tf
│       ├── terraform.tfstate
│       ├── terraform.tfstate.backup
│       └── variables.tf
└── modules
    ├── base
    │   ├── certificate
    │   │   ├── main.tf
    │   │   ├── output.tf
    │   │   └── variables.tf
    │   ├── compute
    │   │   └── linux_vm
    │   │       ├── main.tf
    │   │       ├── output.tf
    │   │       └── variables.tf
    │   ├── network
    │   │   └── virtual_network
    │   │       ├── main.tf
    │   │       ├── output.tf
    │   │       └── variables.tf
    │   ├── resource_group
    │   │   ├── main.tf
    │   │   ├── output.tf
    │   │   └── variables.tf
    │   └── storage
    │       └── key_vault
    │           ├── main.tf
    │           ├── output.tf
    │           └── variables.tf
    └── services
        ├── application_gateway
        │   ├── main.tf
        │   ├── output.tf
        │   └── variables.tf
        └── remote_state
            ├── main.tf
            ├── makefile
            ├── templates
            │   └── terraform.tf.tpl
            └── variables.tf

Usage

Create Prerequisites

The commands below will setup the prerequisites for the azurerm remote-backend. They will also generate the terraform.tf file from template that is used to initialize the remote-backend.

terraform init
terraform plan
terraform apply

Configure Remote-Backend

You should notice terraform.tf in your current working directory. The next set of commands will read the statements in terraform.tf and configure the remote-backend.

teraform init --reconfigure
terraform plan
terraform apply

Cleanup

Delete the leftover terraform.tfstate and terraform.tfstate.backup files by running:

rm terraform.tfstate*

TODO

1. Fix error on terraform destroy since state file part of resources being destroyed
2. Reduce duplication in main.tf file between development and production
3. Reduce duplication in variables.tf file between development and production
4. Add appropriate license