This repository contains Terraform code to deploy a 3-tier web application infrastructure on AWS. The infrastructure consists of three tiers: Presentation, Application, and Database, each hosted in separate subnets within a Virtual Private Cloud (VPC).
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Modular Structure: The project is organized into separate modules for each tier (Presentation, Application, and Database) to promote reusability and maintainability.
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Auto Scaling: Application and Presentation tiers are configured with Auto Scaling Groups to dynamically adjust the number of instances based on demand.
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Load Balancing: The Presentation tier uses an Application Load Balancer (ALB) to distribute traffic across instances.
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Database: The Database tier is provisioned using Amazon RDS for PostgreSQL, with customizable engine version, storage, backup retention, and more.
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Security Groups and Network ACLs: Granular security controls are implemented using security groups and network ACLs to restrict inbound and outbound traffic.
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Variable Configuration: Centralized variables configuration allows easy customization of different aspects of the infrastructure.
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Monitoring and Scaling: CloudWatch alarms and scaling policies ensure efficient resource utilization based on CPU utilization.
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Outputs for Visibility: The
outputs.tffiles define informative outputs that provide visibility into the deployed infrastructure.
- Terraform (>= 0.12)
- AWS Account and IAM User with necessary permissions
- Clone this repository to your local machine.
- Navigate to the root directory of the project.
- Customize deployment settings by creating a
terraform.tfvarsfile and overriding variables as needed. - Initialize Terraform by running:
terraform init- Preview the planned changes:
terraform plan- Deploy the infrastructure:
terraform applyContributions and feedback are welcome! If you find issues or ways to improve this project, feel free to open an issue or a pull request.
This project is licensed under the MIT License.