Scribd
Upload
5 views1 page

Terraform Intro

Terraform is an open-source tool by HashiCorp for managing infrastructure as code using a declarative configuration language. It supports multi-cloud environments and includes key concepts like providers, resources, and state management. Best practices include version control, secure management of state files, and modular configuration.

Uploaded by

Osin Toluwani
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as TXT, PDF, TXT or read online on Scribd
5 views1 page

Terraform Intro

Terraform is an open-source tool by HashiCorp for managing infrastructure as code using a declarative configuration language. It supports multi-cloud environments and includes key concepts like providers, resources, and state management. Best practices include version control, secure management of state files, and modular configuration.

Uploaded by

Osin Toluwani
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as TXT, PDF, TXT or read online on Scribd
You are on page 1/ 1

Title: Introduction to Terraform - Infrastructure as Code

1. What is Terraform?
- Terraform is an open-source tool by HashiCorp for building, changing, and
versioning infrastructure safely and efficiently.
- It uses a declarative configuration language (HCL - HashiCorp Configuration
Language).

2. Why Use Terraform?


- Infrastructure as Code (IaC)
- Version-controlled infrastructure definitions
- Multi-cloud compatibility (AWS, Azure, GCP)

3. Key Concepts
- Providers: Plugins for cloud platforms (e.g., AWS, Azure)
- Resources: The basic building blocks (e.g., aws_instance)
- Variables: Input parameters to customize modules
- Outputs: Return values from a Terraform module
- State: Tracks current infrastructure and changes

4. Basic Terraform Commands


- `terraform init`: Initialize the working directory
- `terraform plan`: Preview changes before applying
- `terraform apply`: Apply changes to reach desired state
- `terraform destroy`: Tear down resources

5. Sample Terraform File


provider "aws" {
region = "us-east-1"
}
resource "aws_instance" "web" {
ami = "ami-0c55b159cbfafe1f0"
instance_type = "t2.micro"
}

6. Variables and Outputs


- Define variables in `variables.tf` and use them in main config
- Declare outputs to pass info between modules

7. Terraform State Management


- State file tracks deployed resources
- Use remote state (e.g., S3, Terraform Cloud) in teams

8. Modules
- Modules are reusable Terraform configurations
- Use public or private modules to simplify large projects

9. Best Practices
- Use version control for .tf files
- Protect state files and manage secrets securely
- Separate environments (dev/stage/prod)

10. Conclusion
Terraform is essential for managing infrastructure efficiently and repeatably.
Start small and build modular, scalable configurations.

You might also like