# rohitz999/terraform-mega-project architecture

> Architecture diagram of the GitHub repository rohitz999/terraform-mega-project, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-30). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/rohitz999/terraform-mega-project
- Repository: https://github.com/rohitz999/terraform-mega-project

## Overview

This repository defines Terraform infrastructure for a containerized application on AWS ECS. The principal workflow is to configure the stack, provision networking and IAM prerequisites, then run ECS tasks behind an application load balancer; Terraform outputs expose useful stack details such as the load balancer DNS name. The README documents the module inputs and outputs, but no source excerpts were supplied, so the graph reflects documented dependencies rather than verified Terraform module calls or resource references.

Main entry points: [`terraform-ecs-nodejs/main.tf`](https://github.com/rohitz999/terraform-mega-project/blob/main/terraform-ecs-nodejs/main.tf) (ECS Configuration), [`modules/alb/main.tf`](https://github.com/rohitz999/terraform-mega-project/blob/main/modules/alb/main.tf) (Load Balancer), [`modules/vpc/main.tf`](https://github.com/rohitz999/terraform-mega-project/blob/main/modules/vpc/main.tf) (VPC Network), [`modules/iam/main.tf`](https://github.com/rohitz999/terraform-mega-project/blob/main/modules/iam/main.tf) (Execution Role)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_stack["ECS Stack"]
  node_stack_config["ECS Configuration<br/>[main.tf]"]
  node_stack_inputs["Stack Inputs<br/>[variable.tf]"]
  node_stack_outputs["Stack Outputs<br/>[output.tf]"]
end

subgraph group_network["Networking"]
  node_vpc["VPC Network<br/>[main.tf]"]
  node_vpc_outputs["Network Outputs<br/>[output.tf]"]
end

subgraph group_access["Identity"]
  node_iam["Execution Role<br/>[main.tf]"]
  node_iam_outputs["Role Output<br/>[output.tf]"]
end

subgraph group_traffic["Load Balancing"]
  node_alb["Load Balancer<br/>[main.tf]"]
  node_alb_outputs["Balancer Outputs<br/>[output.tf]"]
end

node_operator(("Operator"))
node_aws[("AWS Resources")]

node_operator -->|"applies configuration"| node_stack_config
node_stack_config -->|"uses variables"| node_stack_inputs
node_stack_config -.->|"configures networking"| node_vpc
node_stack_config -.->|"configures execution role"| node_iam
node_stack_config -.->|"configures load balancer"| node_alb
node_vpc -->|"exposes IDs"| node_vpc_outputs
node_vpc_outputs -->|"supplies network inputs"| node_alb
node_iam -->|"exposes role ARN"| node_iam_outputs
node_iam_outputs -.->|"supplies execution role"| node_stack_config
node_alb -->|"exposes DNS and ARNs"| node_alb_outputs
node_stack_config -->|"exposes stack details"| node_stack_outputs
node_vpc -->|"provisions network"| node_aws
node_iam -->|"provisions role"| node_aws
node_alb -->|"provisions balancer"| node_aws
node_stack_config -->|"provisions ECS services"| node_aws

click node_stack_config "https://github.com/rohitz999/terraform-mega-project/blob/main/terraform-ecs-nodejs/main.tf"
click node_stack_inputs "https://github.com/rohitz999/terraform-mega-project/blob/main/terraform-ecs-nodejs/variable.tf"
click node_stack_outputs "https://github.com/rohitz999/terraform-mega-project/blob/main/terraform-ecs-nodejs/output.tf"
click node_vpc "https://github.com/rohitz999/terraform-mega-project/blob/main/modules/vpc/main.tf"
click node_vpc_outputs "https://github.com/rohitz999/terraform-mega-project/blob/main/modules/vpc/output.tf"
click node_iam "https://github.com/rohitz999/terraform-mega-project/blob/main/modules/iam/main.tf"
click node_iam_outputs "https://github.com/rohitz999/terraform-mega-project/blob/main/modules/iam/output.tf"
click node_alb "https://github.com/rohitz999/terraform-mega-project/blob/main/modules/alb/main.tf"
click node_alb_outputs "https://github.com/rohitz999/terraform-mega-project/blob/main/modules/alb/output.tf"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_stack_config,node_stack_inputs,node_stack_outputs toneBlue
class node_vpc,node_vpc_outputs,node_aws toneAmber
class node_iam,node_iam_outputs toneMint
class node_alb,node_alb_outputs toneRose
class node_operator toneIndigo
```

## Components

### ECS Stack

- [ECS Configuration](https://github.com/rohitz999/terraform-mega-project/blob/main/terraform-ecs-nodejs/main.tf): `terraform-ecs-nodejs/main.tf`
- [Stack Inputs](https://github.com/rohitz999/terraform-mega-project/blob/main/terraform-ecs-nodejs/variable.tf): `terraform-ecs-nodejs/variable.tf`
- [Stack Outputs](https://github.com/rohitz999/terraform-mega-project/blob/main/terraform-ecs-nodejs/output.tf): `terraform-ecs-nodejs/output.tf`

### Networking

- [VPC Network](https://github.com/rohitz999/terraform-mega-project/blob/main/modules/vpc/main.tf): `modules/vpc/main.tf`
- [Network Outputs](https://github.com/rohitz999/terraform-mega-project/blob/main/modules/vpc/output.tf): `modules/vpc/output.tf`

### Identity

- [Execution Role](https://github.com/rohitz999/terraform-mega-project/blob/main/modules/iam/main.tf): `modules/iam/main.tf`
- [Role Output](https://github.com/rohitz999/terraform-mega-project/blob/main/modules/iam/output.tf): `modules/iam/output.tf`

### Load Balancing

- [Load Balancer](https://github.com/rohitz999/terraform-mega-project/blob/main/modules/alb/main.tf): `modules/alb/main.tf`
- [Balancer Outputs](https://github.com/rohitz999/terraform-mega-project/blob/main/modules/alb/output.tf): `modules/alb/output.tf`

### Other components

- **Operator**
- **AWS Resources**

## Connections

- Operator → ECS Configuration: applies configuration (evidence: `README.md`)
- ECS Configuration → Stack Inputs: uses variables (evidence: `README.md`)
- ECS Configuration → VPC Network: configures networking
- ECS Configuration → Execution Role: configures execution role
- ECS Configuration → Load Balancer: configures load balancer
- VPC Network → Network Outputs: exposes IDs (evidence: `README.md`)
- Network Outputs → Load Balancer: supplies network inputs (evidence: `README.md`)
- Execution Role → Role Output: exposes role ARN (evidence: `README.md`)
- Role Output → ECS Configuration: supplies execution role
- Load Balancer → Balancer Outputs: exposes DNS and ARNs (evidence: `README.md`)
- ECS Configuration → Stack Outputs: exposes stack details (evidence: `README.md`)
- VPC Network → AWS Resources: provisions network (evidence: `README.md`)
- Execution Role → AWS Resources: provisions role (evidence: `README.md`)
- Load Balancer → AWS Resources: provisions balancer (evidence: `README.md`)
- ECS Configuration → AWS Resources: provisions ECS services (evidence: `README.md`)