Terraform Azure Resource Group Step-by-Step Guide | Complete Workflow (Init, Plan, Apply, Destroy)

 

🎯 Objective

Learn Terraform workflow by creating and managing a Resource Group in Microsoft Azure

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📁 Step 1: Create Project Folder

mkdir tf-azure-rg
cd tf-azure-rg

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🧾 Step 2: provider.tf

provider "azurerm" {
  features {}
}

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🧾 Step 3: variables.tf

variable "rg_name" {
  default = "demo-rg-tf"
}

variable "location" {
  default = "eastus"
}

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🧾 Step 4: main.tf (Resource Group Only)

resource "azurerm_resource_group" "rg" {
  name     = var.rg_name
  location = var.location

  tags = {
    environment = "Dev"
    project     = "Terraform-Lab"
  }
}

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🧪 Step 5: Terraform Workflow Execution

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🔹 1. Terraform Init

terraform init

✔ Downloads Azure provider
✔ Initializes working directory

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🔹 2. Terraform Validate

terraform validate

✔ Checks syntax
✔ Ensures config is correct

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🔹 3. Terraform Plan

terraform plan

✔ Shows what Terraform will create

👉 Example Output:

+ azurerm_resource_group.rg will be created

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🔹 4. Terraform Apply

terraform apply -auto-approve

✔ Creates Resource Group in Azure

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🔹 5. Verify in Azure

Go to Azure Portal → Check Resource Group

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🔹 6. Terraform Destroy

terraform destroy -auto-approve

✔ Deletes Resource Group
✔ Cleans all resources

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🧠 What You Learned

✔ Write Terraform code
✔ Initialize provider
✔ Validate configuration
✔ Plan infrastructure
✔ Apply changes
✔ Destroy resources

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🎯 Interview Answer (Short)

👉 Terraform workflow:
Write → Init → Validate → Plan → Apply → Destroy

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💡 Bonus: Output Example

Add this in output.tf:

output "rg_name" {
  value = azurerm_resource_group.rg.name
}

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🚀 Next Step Suggestions

After this, try:

• Multiple resource groups (count / for_each)
• Modules
• Remote backend

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