sennett-lau / tf-fs-tracker

A terraform project for building a foundation environment on AWS including VPC, subnets, bastion etc.

Terraform Foundation Tracker for AWS

Description

This is a Terraform module that creates a foundation for AWS. It creates resources like VPC, Subnets, Route Tables, Internet Gateway, NAT Gateway, etc.

Implementation

Prerequisites

1. A s3 bucket to store the Terraform state file.
2. A DynamoDB table to store the Terraform state lock.
3. A Keypair to access the EC2 instances for bastion host (optional).

Usage

1. Update the generic-variables.tf file's aws_region and env variables.
2. Update the s3 bucket name in provider.tf file.
3. Update the DynamoDB table name in provider.tf file.
4. Update the bastion_key_name variable in bastion.auto.tfvars file.
5. Update any other variables in *.auto.tfvars file for the desired inputs.
6. Run terraform init to initialize the Terraform.
7. Run terraform plan to see the changes that will be applied.
8. Run terraform apply to apply the changes.

Variables

Generic Variables

1. aws_region - The AWS region to deploy the resources.
2. env - default as dev, can also be string like prod, uat etc..
3. project - default as fs meaning foundation.
4. module - default as tracker.

More Variables

1. az_count - default as 6, can be any number between 1 and the number of availability zones in the region.

VPC Module

1. vpc_cidr - CIDR block for the VPC.
2. subnet_cidr - CIDR block for the subnets.

type = map(list(string))

# should provide a list of CIDR blocks for both public and private subnets
{
    public_subnets = [...],
    private_subnets = [...]
}

Bastion Module

SNS Module

Outputs

Resources