Terraform Infrastructure as Code

Step 7 of the DevOps Roadmap

Learn what IaC means. Learn about terraform and how to automate infrastructure creation. If you deployed an application to AWS in previous step, destroy the infrastructure and recreate it using terraform.

Why Terraform for DevOps?

Infrastructure as Code (IaC) with Terraform provides:

• Consistent and repeatable infrastructure deployments
• Version-controlled infrastructure changes
• Multi-cloud provider support
• Automated resource provisioning and management
• Disaster recovery and environment replication

What You'll Learn

Infrastructure as Code Fundamentals

• IaC Concepts

  • Infrastructure as Code principles
  • Declarative vs imperative approaches
  • Benefits and challenges of IaC
  • IaC tools comparison

• Terraform Architecture

  • Terraform core components
  • Providers and resources
  • State management concepts
  • Terraform workflow (init, plan, apply)

Terraform Syntax & Configuration

• HashiCorp Configuration Language (HCL)

  • Resource declarations
  • Variable definitions and usage
  • Output values and references
  • Data sources and locals

• Advanced HCL Features

  • Conditional expressions
  • Loop constructs (for_each, count)
  • Dynamic blocks
  • Function usage and expressions

State Management

• Local State

  • State file structure
  • State locking mechanisms
  • State inspection and manipulation
  • Import existing resources

• Remote State Backends

  • S3 backend configuration
  • State file encryption
  • Team collaboration with remote state
  • State versioning and backup

Terraform Modules

• Module Development

  • Module structure and organization
  • Input variables and outputs
  • Module versioning strategies
  • Public and private module registries

• Module Usage

  • Consuming external modules
  • Module composition patterns
  • Testing and validation
  • Documentation best practices

Multi-Environment Management

• Environment Strategies

  • Workspace management
  • Environment-specific configurations
  • Variable management across environments
  • Promotion workflows

• Advanced Patterns

  • Blue-green deployments
  • Canary releases with infrastructure
  • Infrastructure testing strategies
  • Compliance and governance

AWS Provider Deep Dive

• Core AWS Resources

  • VPC and networking resources
  • EC2 instances and Auto Scaling
  • S3 buckets and IAM policies
  • RDS databases and security groups

• Advanced AWS Integration

  • ECS and EKS cluster management
  • Lambda functions and API Gateway
  • CloudWatch monitoring setup
  • Route53 DNS configuration

Hands-on Projects

Project 1: Multi-Tier AWS Infrastructure

Build complete infrastructure stack:

• VPC with public/private subnets
• Application Load Balancer
• Auto Scaling EC2 instances
• RDS Multi-AZ database setup

Project 2: Kubernetes Cluster on AWS

Deploy production-ready EKS:

• EKS cluster with worker nodes
• VPC CNI and security configuration
• ALB Ingress controller setup
• Monitoring and logging integration

Project 3: Multi-Environment Pipeline

Create environment promotion system:

• Development, staging, production environments
• Terraform workspace management
• Automated testing and validation
• Infrastructure change approval workflow

Project 4: Disaster Recovery Infrastructure

Implement cross-region DR:

• Primary and secondary region setup
• Database replication configuration
• Automated failover procedures
• Recovery testing and validation

Course Modules

Module 1: Terraform Fundamentals

• IaC concepts and benefits
• Terraform installation and setup
• Basic resource management
• State file understanding

Module 2: Advanced Configuration

• HCL syntax mastery
• Variable and output management
• Module development and usage
• Best practices and patterns

Module 3: State & Collaboration

• Remote state backends
• Team collaboration workflows
• State management strategies
• Security and access control

Module 4: Production Deployment

• Multi-environment management
• CI/CD integration
• Testing and validation
• Monitoring and troubleshooting

Lab Environment

• AWS sandbox environment
• Terraform Cloud access
• Version control integration
• Automated testing tools

Prerequisites

• Required: All previous DevOps courses (1-6)
• Strong AWS knowledge
• Infrastructure architecture understanding
• Version control proficiency

Learning Path

This is the seventh course in the DevOps roadmap. After completing this course, continue with:

1. Ansible Configuration Management - Server configuration automation
2. CI/CD with GitHub Actions - Deployment pipeline automation
3. Nginx Web Server & Load Balancing - Application delivery

Tools & Technologies

• Terraform CLI and providers
• Terraform Cloud/Enterprise
• AWS services integration
• Version control systems
• CI/CD pipeline tools

Advanced Topics

• Custom provider development
• Terraform plugin architecture
• Performance optimization
• Security scanning integration
• Cost optimization strategies

Industry Integration

• GitOps workflows with Terraform
• Policy as Code with Sentinel
• Terraform Enterprise features
• Multi-cloud deployments
• Compliance automation

Security & Compliance

• Secret management with Terraform
• Policy enforcement
• Security scanning
• Compliance frameworks
• Audit logging

Real-world Applications

• Cloud migration automation
• Infrastructure standardization
• Disaster recovery automation
• Multi-environment management
• Cost optimization initiatives

Certification Preparation

• HashiCorp Certified: Terraform Associate
• AWS infrastructure certifications
• Cloud architecture best practices

Certification

Upon completion, you'll receive a certificate demonstrating your Terraform Infrastructure as Code expertise essential for scalable DevOps infrastructure automation.

Automate your infrastructure with Terraform mastery!