📘 Terraform Series – Day 4

Terraform Workflow: init, validate, plan, apply & destroy

🧠 Before Starting (AWS Setup)

Before using Terraform with AWS, we first need to configure AWS access on our local machine.

👉 Steps:

• Install AWS CLI

• Configure AWS using:

aws configure

👉 It will ask for:

• AWS Access Key

• Secret Key

• Region

• Output format

✅ After this setup, Terraform can interact with your AWS account.

🎯 Objective

• Understand Terraform workflow

• Learn core commands

• Perform hands-on execution

🧱 Step 0: Create Terraform Configuration File

👉 Create a file:

main.tf

👉 This file contains your Terraform infrastructure code

⚙️ Step 1: Initialize Terraform

🔹 Command:

terraform init

🔹 Purpose:

• Initializes working directory

• Downloads required providers

• Prepares environment

✅ Step 2: Validate Configuration

🔹 Command:

terraform validate

🔹 Purpose:

• Checks syntax of .tf files

• Ensures configuration is valid

👉 “Check if your code is correct”

📊 Step 3: Review Execution Plan

🔹 Command:

terraform plan

🔹 Purpose:

• Shows what Terraform will do

• Lists resources to create/change/destroy

• Works as a dry run

👉 “Preview before execution”

🚀 Step 4: Apply Configuration

🔹 Command:

terraform apply

🔹 Purpose:

• Executes the plan

• Creates real infrastructure

👉 Type yes to confirm

🧨 Step 5: Destroy Infrastructure

🔹 Command:

terraform destroy

🔹 Purpose:

• Deletes all resources

• Avoids unnecessary cloud cost

⚡ Auto-Approve Option

terraform apply -auto-approve
terraform destroy -auto-approve

👉 Skips confirmation

👉 Useful in automation (CI/CD)

👨‍💻 About the Author

“A complete Terraform series covering everything from fundamentals to advanced real-world infrastructure automation in a DevOps environment.”

📬 Let's Stay Connected

• 📧 Email: gujjarapurv181@gmail.com

• 🐙 GitHub: github.com/ApurvGujjar07

• 💼 LinkedIn: linkedin.com/in/apurv-gujjar