Terraform Notes – Day 1 & Day 2 – July 2023

What is terraform?
-------------------
	Coding for infra
	IAAC

	From Hashicorp
	Go
	Release
		cli - free & os
		web 
			Cloud
			Enterprise
	version
	- 1.5X

Whats in infra?
--------------------
https://registry.terraform.io/browse/providers - 3316

Why terraform?
-------------------
	Coding for all

	create - update - destory
	==========================
		ONE CMD

ONE CODING STANDARD FOR ALL PROVIDERS
--------------------
	hcl
Easy 2
	read
	write
	test
	debug
	share


How it works???		== terraform Architecture
-------------------

create -> Update -> Destroy
-----------------
	apply	    destroy

=====================================================
How to store terraform code? - .tf

dir
	file1.tf + file2.tf + file3.tf
	=============================
		one.tf
	
==============================================================================================

How to write a code in terraform?
=====================================

tf
	Resource1
		arguments1
		arguments2
		arguments3

	Resource2
		arguments1
		arguments2
		arguments3

	Resource3
		arguments1
		arguments2
		arguments3


resource "aws_instance" "web" {
  ami           = ami-06b09bfacae1453cb
  instance_type = "t3.micro"

  tags = {
    Name = "HelloWorld"
  }
}

resource "azurerm_resource_group" "example" {
  name     = "example-resources"
  location = "West Europe"
}





providers.tf
----------------
terraform {
  required_providers {
    azurerm = {
      source = "hashicorp/azurerm"
      version = "3.63.0"
    }
	aws = {
      source = "hashicorp/aws"
      version = "5.6.2"
    }
  }
}

provider "azurerm" {
  features {}
  client_id       = "02cab381-968e6-ae25-dea240f2ee4b"
  client_secret   = "T5r8Q~3FWhZsvkMGNwTgkcUb20y8OrnScQv"
  tenant_id       = "f34c8fc4-16b8-4de3-8110-45904e3b1d1a"
  subscription_id = "ab1f1735-1"
}


provider "aws" {
  region     = "us-east-1"
  access_key = ""
  secret_key = "/QR3dPT"
}


aws.tf
-----------
resource "aws_instance" "web" {
  ami           = "ami-06b09bfacae1453cb"
  instance_type = "t3.micro"

  tags = {
    Name = "HelloWorld"
  }
}


output "public_ip_address" {
  value = aws_instance.web.public_ip
}

azure.tf
-----------
resource "azurerm_resource_group" "example" {
  name     = "example-resourcessss"
  location = "West Europe"
}

terraform version
terraform help
terraform init
terraform plan
terraform validate
terraform apply
terraform show
terraform output
terraform providers