Terraform Module + Count Setup Script By EduArn

In this post we will see how to create root and other code with help of bash script:

vi script.sh

Pest the code in that file:  

#!/bin/bash

# Create directory structure
mkdir -p tfmodule-count/modules/rg
cd tfmodule-count || exit

echo "📁 Creating Terraform files..."

# -------------------------
# main.tf (uses count)
# -------------------------
cat <<EOF > main.tf
provider "azurerm" {
  features {}
}

variable "rg_names" {
  type    = list(string)
  default = ["rg-dev", "rg-test", "rg-prod"]
}

variable "location" {
  default = "eastus"
}

module "rg" {
  source = "./modules/rg"

  count       = length(var.rg_names)
  rg_name     = var.rg_names[count.index]
  rg_location = var.location
}

output "rg_names_output" {
  value = [for m in module.rg : m.rg_output.name]
}
EOF

# -------------------------
# modules/rg/rg.tf
# -------------------------
cat <<EOF > modules/rg/rg.tf
resource "azurerm_resource_group" "rg" {
  name     = var.rg_name
  location = var.rg_location

  tags = {
    environment = "Dev"
  }
}
EOF

# -------------------------
# modules/rg/variable.tf
# -------------------------
cat <<EOF > modules/rg/variable.tf
variable "rg_name" {
  type = string
}

variable "rg_location" {
  type = string
}
EOF

# -------------------------
# modules/rg/output.tf
# -------------------------
cat <<EOF > modules/rg/output.tf
output "rg_output" {
  value = azurerm_resource_group.rg
}
EOF

echo "✅ Terraform module with count created successfully!"
echo ""
echo "👉 Next steps:"
echo "cd tfmodule-count"
echo "terraform init"
echo "terraform plan"
echo "terraform apply" 

 

▶️ How to Run

chmod +x setup.sh
./setup.sh
 
📁 What You Get

Root module with count

Reusable module (modules/rg)

3 Azure Resource Groups created:

rg-dev

rg-test

rg-prod



🎯 After Setup
Run:
terraform init
terraform plan
terraform apply
 

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