Terraform Infrastructure Modules
Hi I am Rohan Kamble Welcome to the Terraform Infrastructure Modules project! This repository provides a set of reusable and customizable Terraform modules to help you quickly and efficiently deploy and manage cloud infrastructure. By using this project, you can create a variety of AWS resources with minimal configuration. Features This project enables the creation of the following resources: Auto Scaling Groups (ASG): Automatically scale your EC2 instances based on demand. Databases (DB): Provision database instances with security and reliability. EC2 Instances: Launch and manage individual virtual machines in AWS. Load Balancers (LB): Distribute incoming application traffic across multiple targets, such as EC2 instances. Security Groups: Manage inbound and outbound rules to control traffic to your resources. VPC (Virtual Private Cloud): Set up a secure and isolated network environment with public and private subnets. Prerequisites Before using these modules, ensure you have the following: Terraform installed on your local machine. Download Terraform AWS CLI configured with appropriate permissions. Configure AWS CLI Access and Secret Keys for your AWS account. Getting Started To start using this module, follow these steps: Clone the Repository: git clone https://github.com/rohankamble103/terraform-aws-high-level-architechture.git cd terraform-aws-high-level-architechture Create a Main Configuration File: Inside your project directory, create a main.tf file and include the modules you want to use. For example: provider "aws" { region = "us-east-1" } module "vpc" { source = "./module/vpc" cidr_vpc = "10.0.0.0/16" vpc_name = "my-vpc" cidr_private_sub = "10.0.2.0/24" cidr_public_subnet = "10.0.1.0/24" availability_zone_private_sub = "us-east-1b" availability_zone_public_subnet = "us-east-1a" private_sub_name = "my-private-subnet" pub_sub_name = "my-pub-sub-name" } #Customise this vpc module according to you module "security_groups" { source = "./module/security_groups" vpc_id = module.vpc.vpc_id security_group_name = "my-sec-group" security_group_name_database = "secu-group-for-db" } #Customise this security group module according to you module "ec2_instances" { source = "./module/ec2_instances" ami_id = "ami-0c55b159cbfafe1f0" my_instance_type = "t2.micro" subnet_id = module.vpc.public_subnet_id security_group_name = module.security_groups.web_security_group_id key_name = "my-key" } #Customise this ec2_instance module according to you module "asg" { source = "./module/asg" ami_id = "ami-0c55b159cbfafe1f0" my_instance_type = "t2.micro" key_name = "my-key" subnet_ids = [module.vpc.public_subnet_id] security_group_name = "my-sec-group" asg_min = 1 asg_max = 5 user_data =
Hi I am Rohan Kamble
Welcome to the Terraform Infrastructure Modules project! This repository provides a set of reusable and customizable Terraform modules to help you quickly and efficiently deploy and manage cloud infrastructure. By using this project, you can create a variety of AWS resources with minimal configuration.
Features
This project enables the creation of the following resources:
- Auto Scaling Groups (ASG): Automatically scale your EC2 instances based on demand.
- Databases (DB): Provision database instances with security and reliability.
- EC2 Instances: Launch and manage individual virtual machines in AWS.
- Load Balancers (LB): Distribute incoming application traffic across multiple targets, such as EC2 instances.
- Security Groups: Manage inbound and outbound rules to control traffic to your resources.
- VPC (Virtual Private Cloud): Set up a secure and isolated network environment with public and private subnets.
Prerequisites
Before using these modules, ensure you have the following:
- Terraform installed on your local machine. Download Terraform
- AWS CLI configured with appropriate permissions. Configure AWS CLI
- Access and Secret Keys for your AWS account.
Getting Started
To start using this module, follow these steps:
- Clone the Repository:
git clone https://github.com/rohankamble103/terraform-aws-high-level-architechture.git
cd terraform-aws-high-level-architechture
- Create a Main Configuration File:
Inside your project directory, create a main.tf file and include the modules you want to use. For example:
provider "aws" {
region = "us-east-1"
}
module "vpc" {
source = "./module/vpc"
cidr_vpc = "10.0.0.0/16"
vpc_name = "my-vpc"
cidr_private_sub = "10.0.2.0/24"
cidr_public_subnet = "10.0.1.0/24"
availability_zone_private_sub = "us-east-1b"
availability_zone_public_subnet = "us-east-1a"
private_sub_name = "my-private-subnet"
pub_sub_name = "my-pub-sub-name"
}
#Customise this vpc module according to you
module "security_groups" {
source = "./module/security_groups"
vpc_id = module.vpc.vpc_id
security_group_name = "my-sec-group"
security_group_name_database = "secu-group-for-db"
}
#Customise this security group module according to you
module "ec2_instances" {
source = "./module/ec2_instances"
ami_id = "ami-0c55b159cbfafe1f0"
my_instance_type = "t2.micro"
subnet_id = module.vpc.public_subnet_id
security_group_name = module.security_groups.web_security_group_id
key_name = "my-key"
}
#Customise this ec2_instance module according to you
module "asg" {
source = "./module/asg"
ami_id = "ami-0c55b159cbfafe1f0"
my_instance_type = "t2.micro"
key_name = "my-key"
subnet_ids = [module.vpc.public_subnet_id]
security_group_name = "my-sec-group"
asg_min = 1
asg_max = 5
user_data = <<-EOF
#!/bin/bash
echo "admin:YourSecurePassword123" | chpasswd
sed -i 's/^PasswordAuthentication no/PasswordAuthentication yes/' /etc/ssh/sshd_config
sed -i 's/^#PasswordAuthentication yes/PasswordAuthentication yes/' /etc/ssh/sshd_config
systemctl restart sshd
EOF
}
#Customise this asg module and user_data according to you
module "db" {
source = "./module/db"
subnet_ids = module.vpc.private_subnet_id
pub_acc_instance = false
engine_db = "mysql"
engine_db_version = "8.0"
database_instance_class = "db.t2.micro"
security_group_ids = module.security_groups.web_security_group_id
db_name_rds = "my-db"
memory_db_instance = 20
mylti_az_value = true
username_for_db = "root"
password_for_db = "mypassword12"
}
#Customise this db module according to you
module "lb" {
source = "./module/lb"
vpc_id = module.vpc.vpc_id
subnet_ids = [module.vpc.public_subnet_id]
security_group_name = module.security_groups.web_security_group_id
}
#Customise this lb module according to you
- Initialize Terraform:
terraform init
- Plan Infrastructure:
terraform plan
Review the execution plan to ensure everything is as expected.
- Apply Infrastructure:
terraform apply
Confirm the changes to create your infrastructure.
Example Usage
Create a VPC with Public and Private Subnets
module "vpc" {
source = "./module/vpc"
cidr_vpc = "10.0.0.0/16"
vpc_name = "my-vpc"
cidr_private_sub = "10.0.2.0/24"
cidr_public_subnet = "10.0.1.0/24"
availability_zone_private_sub = "us-east-1b"
availability_zone_public_subnet = "us-east-1a"
private_sub_name = "my-private-subnet"
pub_sub_name = "my-pub-sub-name"
}
Deploy an EC2 Instance
module "ec2_instances" {
source = "./module/ec2_instances"
ami_id = "ami-0c55b159cbfafe1f0"
my_instance_type = "t2.micro"
subnet_id = module.vpc.public_subnet_id
security_group_name = module.security_groups.web_security_group_id
key_name = "my-key"
}
Add a Load Balancer
module "lb" {
source = "./module/lb"
vpc_id = module.vpc.vpc_id
subnet_ids = [module.vpc.public_subnet_id]
security_group_name = module.security_groups.web_security_group_id
}
Add a RDS db
module "db" {
source = "./module/db"
subnet_ids = module.vpc.private_subnet_id
pub_acc_instance = false
engine_db = "mysql"
engine_db_version = "8.0"
database_instance_class = "db.t2.micro"
security_group_ids = module.security_groups.web_security_group_id
db_name_rds = "my-db"
memory_db_instance = 20
mylti_az_value = true
username_for_db = "root"
password_for_db = "mypassword12"
}
Modules Included
VPC Module
- Creates a custom VPC with public and private subnets.
- Supports multiple availability zones.
Security Groups Module
- Define ingress and egress rules for various use cases.
- Predefined rules for HTTP, HTTPS, and SSH access.
Load Balancer Module
- Provisions an Application Load Balancer (ALB).
- Automatically registers EC2 instances in the target group.
EC2 Module
- Launches instances with specified AMI, instance type, and key pair.
- Attaches instances to security groups and subnets.
Database Module
- Creates a managed database instance with security group configurations.
- Supports multiple database engines like MySQL, PostgreSQL, etc.
Auto Scaling Group Module
- Automatically adjusts the number of instances based on load.
- Configurable scaling policies and health checks.
Inputs
Each module accepts various input variables for customization. Refer to the documentation in each module directory for details.
Outputs
The modules provide outputs such as resource IDs, DNS names, and other useful information. Review the outputs.tf file in each module for details.
License
This project is licensed under the MIT License. See the LICENSE file for more information.
Feel free to contribute to this project or raise issues for any enhancements or bugs.
