Merge pull request #1 from sourcefuse/alb

Terraform Module for Amazon Load Balancer Deployment

Author: vijay-stephen

docs/arc-iac-docs/modules/terraform-aws-arc-load-balancer/docs/module-usage-guide/README.md

@@ -0,0 +1,135 @@
+# Terraform AWS ARC (Load Balancer) Module Usage Guide
+
+## Introduction
+
+### Purpose of the Document
+
+This document outlines guidelines and instructions for users implementing the Terraform module for AWS Load Balance
+
+### Module Overview
+
+The [terraform-aws-arc-load-balancer](https://github.com/sourcefuse/terraform-aws-arc-load-balancer) to implement Terraform module for setting up an AWS Load Balancer
+
+### Prerequisites
+
+Before using this module, ensure you have the following:
+
+- AWS credentials configured.
+- Terraform installed.
+- A working knowledge of AWS VPC, S3, Load balancer and Terraform concepts.
+
+## Getting Started
+
+### Module Source
+
+To use the module in your Terraform configuration, include the following source block:
+
+```hcl
+module "alb" {
+  source                         = "sourcefuse/arc-load-balancer/aws"
+  version                        = "0.0.1"
+  load_balancer_config           = local.load_balancer_config
+  target_group_config            = local.target_group_config
+  target_group_attachment_config = local.target_group_attachment_config
+  alb_listener                   = local.alb_listener
+  default_action                 = local.default_action
+  listener_rules                 = local.listener_rules
+  security_group_data            = local.security_group_data
+  security_group_name            = local.security_group_name
+  vpc_id                         = data.aws_vpc.default.id
+  tags                           = module.tags.tags
+}
+```
+
+Refer to the [Terraform Registry](https://registry.terraform.io/modules/sourcefuse/arc-load-balancer/aws/latest) for the latest version.
+
+### Integration with Existing Terraform Configurations
+
+Refer to the Terraform Registry for the latest version.
+
+## Integration with Existing Terraform Configurations
+Integrate the module with your existing Terraform mono repo configuration, follow the steps below:
+
+- Create a new folder in terraform/ named load-balancer.
+- Create the required files, see the [example](https://github.com/sourcefuse/terraform-aws-arc-load-balancer/tree/main/example)
+to base off of.
+- Configure with your backend:
+   - **region**: Where the backend resides
+    - **key**: `<working_directory>/terraform.tfstate`
+    - **bucket**: Bucket name where the terraform state will reside
+    - **dynamodb_table**: Lock table so there are not duplicate tfplans in the mix
+    - **encrypt**: Encrypt all traffic to and from the backend
+
+### Required AWS Permissions
+
+Ensure that the AWS credentials used to execute Terraform have the necessary permissions to create, list and modify:
+
+- Load balancer
+- s3
+
+
+## Module Configuration
+
+### Input Variables
+
+For a list of input variables, see the README [Inputs](https://github.com/sourcefuse/terraform-aws-arc-load-balancer#inputs)  section.
+
+### Output Values
+
+For a list of outputs, see the README [Outputs](https://github.com/sourcefuse/terraform-aws-arc-load-balancer?tab=readme-ov-file#outputs) section.
+
+## Module Usage
+
+### Basic Usage
+
+For basic usage, see the [example](https://github.com/sourcefuse/terraform-aws-arc-load-balancer/tree/main/example) folder.
+
+This example will create:
+
+- ALB: An Application Load Balancer for handling HTTP/HTTPS traffic at Layer 7 (Application).
+- Security Group: To control access to the ALB and associated backend services.
+- Subnets: To ensure high availability across multiple Availability Zones.
+- CloudWatch Logs: For logging requests and responses passing through the ALB.
+- A Network Load Balancer for handling TCP traffic at Layer 4 (Transport)
+
+### Tips and Recommendations
+
+- The module focuses on provisioning Load Balancer. The convention-based approach enables downstream services to easily attach to the Load Balancer. Adjust the configuration parameters as needed for your specific use case.
+
+## Troubleshooting
+
+### Reporting Issues
+
+If you encounter a bug or issue, please report it on the [GitHub repository](https://github.com/sourcefuse/terraform-aws-arc-load-balancer/issues).
+
+## Security Considerations
+
+### AWS VPC
+
+Understand the security considerations related to Load Balancer on AWS when using this module.
+
+### Best Practices for AWS Load Balancer
+
+Follow best practices to ensure secure Security configurations:
+
+- [AWS Load Balancer Security Best Practices]()
+
+## Contributing and Community Support
+
+### Contributing Guidelines
+
+Contribute to the module by following the guidelines outlined in the [CONTRIBUTING.md](https://github.com/sourcefuse/terraform-aws-arc-load-balancer/blob/main/CONTRIBUTING.md) file.
+
+### Reporting Bugs and Issues
+
+If you find a bug or issue, report it on the [GitHub repository](https://github.com/sourcefuse/terraform-aws-arc-load-balancer/issues).
+
+## License
+
+### License Information
+
+This module is licensed under the Apache 2.0 license. Refer to the [LICENSE](https://github.com/sourcefuse/terraform-aws-arc-load-balancer/blob/main/LICENSE) file for more details.
+
+### Open Source Contribution
+
+Contribute to open source by using and enhancing this module. Your contributions are welcome!