Deploying AWS 2-Tier Architecture with Terraform
Overview: We aim to make a 2-tier architecture in AWS with the following requirements using Terraform, which is an IAC tool.
1. Deploy a VPC with CIDR 10.0.0.0/16 with 2 public subnets with CIDR 10.0.1.0/24 and 10.0.2.0/24. Each public subnet should be in a different AZ for high availability.
2. Create 2 private subnets with CIDR ‘10.0.3.0/24’ and ‘10.0.4.0/24’ with an RDS MySQL instance (micro) in one of the subnets. Each private subnet should be in a different AZ.
3. A load balancer that will direct traffic to the public subnets.
4. Deploy 1 EC2 t2.micro instance in each public subnet.
Technology Used: AWS, Terraform CLI, Terraform,
Above is the architecture behind the scenes to get deployed by the code below written in Terraform. We have created all the components in the main.tf file itself.
Once done with the main.tf file, run the below commands
terraform fmt
# this formats the main.tf file used to rewrite Terraform configuration files to a canonical format and styleterraform init
# initialize a working directory containing terraform plan
#The terraform plan command evaluates a Terraform configuration to determine the desired state of all the resources it declares, then compares that desired state to the real infrastructure objects being managed with the current working directory and workspaceterraform apply
#performs a plan just like terraform plan does, but then actually carries out the planned changes to each resource using the relevant infrastructure provider's APIterraform destroy
# this command is a convenient way to destroy the architecture.
