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Terraform Infrastructure

Provision infrastructure using Terraform (Infrastructure as Code).

Overview​

Terraform configurations are in terraform/ and handle:

  • Server inventory generation
  • Infrastructure provisioning
  • Resource management

Prerequisites​

  • Terraform 1.0+ installed
  • Access to target infrastructure
  • SSH keys configured

Configuration​

Create terraform.tfvars​

cat > terraform/terraform.tfvars << 'EOF'
local_servers = [
  {
    name       = "server"
    hostname   = "server.local"
    ip_address = "192.168.31.100"
    role       = "master"
    ssh_user   = "zeizel"
    ssh_key    = "~/.ssh/id_rsa"
  }
]

local_clients = []
EOF

Usage​

Initialize​

cd terraform
terraform init

Plan​

terraform plan

Apply​

terraform apply -auto-approve

Destroy​

terraform destroy

Outputs​

Terraform generates an Ansible inventory file:

  • templates/inventory.yml.tpl - Template for inventory
  • Generated inventory in output

Variables​

Key variables in variables.tf:

  • local_servers - List of local servers
  • local_clients - List of client machines
  • Server configuration (hostname, IP, role, etc.)

Integration​

Terraform output can be used with:

  • Ansible for configuration management
  • Kubernetes for cluster setup
  • Other automation tools

Next Steps​