This project belongs to a Udemy Course

Complete Terraform Course - Beginner to Advanced 2021

Pre-Requisites for Udemy Course to follow along

• Code Editor, where we write TF Configuration Code e.g. Visual Studio Code: https://code.visualstudio.com/download
• Account on GitlLab, because our Terraform's Configuration Code is hosted on GitLab
• An AWS Account, because we are automating AWS infrastructure with Terraform

Useful Links

• Code Editor, e.g. Visual Studio Code: https://code.visualstudio.com/download
• Installation Guide for Terraform: https://learn.hashicorp.com/tutorials/terraform/install-cli
• Guide of how to create an AWS Account: https://aws.amazon.com/premiumsupport/knowledge-center/create-and-activate-aws-account/
• AWS 1-Year Free Tier information: https://aws.amazon.com/free
• Installation Guides for AWS CLI: https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2.html (not needed until "Environment Variable" Lecture)

Versions used in the course

• Terraform - 1.1.6
• AWS provider - 4.2.0
• VPC module - 3.12.0

Commands used in the Course

initialize

terraform init

preview terraform actions

terraform plan

apply configuration with variables

terraform apply -var-file terraform-dev.tfvars

destroy a single resource

terraform destroy -target aws_vpc.myapp-vpc

destroy everything fromtf files

terraform destroy

show resources and components from current state

terraform state list

show current state of a specific resource/data

terraform state show aws_vpc.myapp-vpc    

set avail_zone as custom tf environment variable - before apply

export TF_VAR_avail_zone="eu-west-3a"

More Information: AWS Services and components we use or create with Terraform

• Amazon EC2 - Virtual Server: https://aws.amazon.com/ec2
• Amazon VPC - Your Virtual Private Network on AWS: https://aws.amazon.com/vpc
• Subnet - Subnetwork, logical subdivision of IP network: https://docs.aws.amazon.com/vpc/latest/userguide/VPC_Subnets.html
• Internet Gateway - a VPC component: https://docs.aws.amazon.com/vpc/latest/userguide/VPC_Internet_Gateway.html
• Security Group - Virtual Firewall: https://docs.aws.amazon.com/vpc/latest/userguide/VPC_SecurityGroups.html
• Route Table - Configuring Network Traffic: https://docs.aws.amazon.com/vpc/latest/userguide/VPC_Route_Tables.html
• Amazon S3 - Simple Storage: https://aws.amazon.com/s3/ (Udemy Section 7: when configuring Remote State)