What is terraform in Hindi/Urdu | Lec-01 | Terraform tutorial for beginners | Infrastructure as Code

Introduction

This tutorial provides a comprehensive overview of Terraform, a powerful tool for managing infrastructure as code. It is specifically designed for beginners and covers what Terraform is, its use cases, architecture, basic commands, and its differences from similar tools like Ansible. By the end of this guide, you will have a solid understanding of how Terraform can help automate and manage your infrastructure effectively.

Step 1: Understand Terraform

• Definition: Terraform is an open-source tool designed for infrastructure provisioning, allowing you to build and manage infrastructure through code.
• Key Concept: It operates on the principle of Infrastructure as Code (IaC), which means you define your desired infrastructure state without detailing how to achieve it.
• Declarative Approach: Focus on what you want (the end state) rather than how to get there, simplifying the process of infrastructure management.

Step 2: Explore Use Cases for Terraform

• Infrastructure Management: Automate the setup of servers, networks, and storage in various cloud environments.
• Multi-Cloud Deployments: Manage resources across different cloud providers like AWS, Azure, and Google Cloud.
• Environment Consistency: Ensure uniformity in different environments (development, staging, production) by using the same configuration files.
• Version Control: Track changes in infrastructure configurations over time, similar to code versioning.

Step 3: Learn Terraform Architecture

• Core Components:
  • Providers: Plugins that allow Terraform to interact with various APIs (e.g., AWS, Azure).
  • Modules: Containers for multiple resources that are used together, promoting reusability.
  • State Files: Terraform maintains a state file to keep track of the resources it manages.
• Execution Process:
  1. Write configuration files in HashiCorp Configuration Language (HCL).
  2. Initialize your Terraform environment using terraform init.
  3. Preview changes with terraform plan.
  4. Apply changes with terraform apply, creating or modifying infrastructure.

Step 4: Familiarize Yourself with Basic Terraform Commands

• Initializing Terraform:

  terraform init
  

• Planning Changes:

  terraform plan
  

• Applying Changes:

  terraform apply
  

• Destroying Infrastructure:

  terraform destroy
  

Step 5: Differentiate Between Terraform and Ansible

• Purpose:
  • Terraform: Primarily used for provisioning and managing infrastructure.
  • Ansible: Focused on configuration management and application deployment.
• Approach:
  • Declarative (Terraform): You specify the desired state.
  • Imperative (Ansible): You describe the steps to achieve a state.

Conclusion

In this tutorial, you learned about Terraform, its architecture, key commands, and its use cases in infrastructure management. By understanding the differences between Terraform and Ansible, you can better decide which tool fits your needs. To deepen your knowledge, consider exploring practical applications and further tutorials on Terraform and related technologies. Start experimenting with Terraform in your projects to harness the power of Infrastructure as Code effectively.