AWS ELB/ALB Golang Application

Golang Web application behind an AWS Application load balancer

Tools | Terraform | ELB | ALB | EC2 | EC2 User Data | AWS Security Groups | AWS Target Groups | Systemd | Golang

Overview

• EC2 instances creation aws_instance.ec2_instance with the relevant variables var.instance_type var.key_name var.subnet_id + security group aws_security_group.rules with ports 80/22 is initialized.
• an application load balancer resource aws_alb.webapp is created with listener on port 80
• a target group is created aws_alb_target_group.tgroup to point the ALB to the relevant ec2 instances
• an attachment of the target group between the ALB and the instances occours using aws_alb_target_group_attachment.to_ec2
• an additional security group for the loadbalancer resources is also created to allow inbound & outbound traffic aws_security_group.alb_sg

A Golang webserver is deployed on ec2 instances

1. In this project i utilized ec2 user data capabilities with a custom script in order to deploy the Go Webserver with systemd.
2. the custom script clones this repo & compiles the golang application & creates and executes a systemd service which listens on port 80

This project utilizes Terraform in order to deploy AWS resources

1. all relevant .tf files to deploy the necessary ELB and webserver are included
2. Terraform deployment visualization :

Architecture

TF Graph