Terraform Session 1: Introduction, Installation, and Basic AWS Networking

In this session, we focused on:
Understanding Terraform Basics:
Terraform is an open-source infrastructure as code (IaC) tool by HashiCorp.
It allows you to define, manage, and provision infrastructure across various platforms using declarative configurations.
Installing Terraform:
We installed Terraform on a Linux-based EC2 instance, learning to handle dependencies like JQ and unzip.
Exploring Terraform Workflow:
Init: Initialize the working directory, download plugins, and set up the environment.
Plan: Preview changes Terraform will make.
Apply: Execute changes to build or modify resources.
Destroy: Remove resources managed by Terraform.
Creating Resources with Terraform:
Writing basic configuration files to create AWS VPCs, using logical names and learning how Terraform tracks states.
Demonstrated how to manage and manipulate resources via Terraform.
Provider and Resource Basics:
Explored the AWS provider and created VPC resources with CIDR blocks, showing how Terraform simplifies infrastructure creation.
Best Practices and Preparation for Advanced Topics:
Importance of modularization, reducing code repetition, and managing variables.
Preparing for next steps: creating complex infrastructures with networking components like subnets, route tables, and gateways.
Takeaways:
Hands-on installation and configuration of Terraform.
Clear understanding of basic Terraform commands and their significance.
First steps toward creating scalable, reusable infrastructure code.