Terraform Core Concepts

   Step 1 : Infrastructure As Code

      1. Understand Infrastructure As Code

      2. Understand Benefits of Infrastructure as Code

      3. How Infrastructure as Code Works

      4. Types of Infrastructure as Code

   Step 2 : Required Tools For Terraform LAB Environment

      1. Install Terraform

      2. Install Visual Studio Code

      3. Install Visual Studio Code Extension for  terraform

      4. Setup AWS Account

   Step 3 : Setup Authentication

   Step 4 : Create an EC2 instance Using Terraform

   Step 5 : Understand Provider Block

   Step 6 : Understand Resource Block

      Step 1 : What is Resources in Terraform ?

      Step 2 : Syntax To Write Resource Block

      Step 3 : Resource Dependency

   Step 7 : Terraform State File

      1 : What is Terraform State File ?

      2 : What is the Significance of tfstate file

      3 : How terraform statefile works ?

   Step 8 : Provider Architecture And Versioning

      1 : Understand Provider Architecture

      2 : Provider Versioning 

      Exercise 

         1) Write a terraform program to create an ec2-instance with provider version 3.0 provider

   Step 9 : Terraform Attribute

      1: Demo to understand Attribute

      2 : What is Attribute ?

      3 : How to Access Resources Attributes

      Exercise

         1. Create an aws s3 bucket using terraform and understand the attribute block of tfstate file

   Step 10 : Terraform Output

      1 : What is Output block

      2 Demo : Add the terraform output block

      3 : How to Access Resources Attributes at run time

      Exercise

         1. Create an aws s3 bucket using terraform and access the s3 attributes at runtime

   Step 11 : Terraform Variables

      1 . What is Terraform Variables

      2 : Why to use variables in terraform

      3 : LAB : Demo Variable Usage 

      Exercise 

         Create a Security group using terraform and allow inbound rule of 443 and 80 port with same cidr block using variable

   Step 12 : Ways To Assign Terraform Variables

      Demo To Understand Different Ways to Assign Variable

      1. Variable Default

         Understand how to Pass Explicit Value to Variable Default.

      2. Command Line Flag

      3. Using terraform.tfvar Files

      4. Environment Variable

      Exercise 

         Write a program to create EC2 instance where each variable values will come from different ways of variable assignment.

    Step 13 : Data Types In Terraform

      1.Demo To Understand DataTypes in terraform

      2. String

      3. Number

      4. List

      5. Map

      Exercise

         Create an EC2 Instance of t3.micro which has latest linux Ubuntu image.

   Step 14  : Custom Validation Rule

      1.Demo To Understand Custom Validation Rule 

      2. What is Custom Validation

      3. How To Create Validation For Variable

      Exercise 

         Create the validation rule for EC2 instance which only accept t2.nano instance type as input

   Step 15 : Count And Count Index

      1.Demo To Understand Count And Count Index

      2. Use Case to understand Count and Count index

      Exercises 

         Create 5 IAM User using Count and Count Index Concept

   Step 16 : Conditional Expression

      1.Demo To Understand Conditional Expression

      2. Use Case to understand Conditional Expression

      Exercise

         Write a tf program where user will specify "STAGE" keyword then an EC2 instance of type "t2.medium" will be created.

   Step 17 : Terraform Locals

      1.Demo To Understand Terraform Locals 

      2. Use Case to understand Terraform Locals

      Exercise

         1. Apply the Below tags to all the EC2 Instance which you have created in previous session.

      a. ProjectID

      b. ProjectName

      2. ProjectTeam

   Step 18 : Terraform Functions

   Step 19 : Data Sources In Terraform

   Step 20 : Debugging In Terraform

   Step 21 : Terraform Format

   Step  22 : Terraform Validate

   Step 23  : Load Order and Semantics 

   Step 24 : Dynamic Block

   Step 25  : Resource Tainting

   Step 26  : Splat Expression

   Step 27  : Save Terraform Plan To File

   Step 28 : Ways To Retrieve Output

   Step 29 : Terraform Setting Block

   Step 30  : Terraform Provisioners Overview

   Step  31 : Terraform Module Overview

   Step 32  : Terraform Workspace Overview

   Step 33  : Remote State Management

      How to Collaborate Terraform Code Within Team

         Why it is required

         How to do it

         LAB

         Exercise

            1. Setup the code repository for collaboration

      Terraform Code Collaboration Challenges

         What are the challenges

         How do we mitigate it

         Exercise

            1. Configure Password in separate file and map it.

      Terraform Code Collaboration correct way

         Discuss the challenges again

         Solution for the issue

         LAB : Implement the solution to mitigate the collaboration challanges

      State File Locking

         What is State File Locking

         Challenges to keep State File in S3

         How to mitigate the challenges to keep state File in S3

         LAB : Let's Implement the solution

      State File Management Command

         What it is

         Why to use it

         Commands List

            list

            mv

            pull

            push

            rm

            show

         LAB : Lets do the Demo

      Terraform Import

         What it is ?

         Why to use it ?

         How To Use it

         LAB : Lets do the Demo

         Exercise

            1. Create a Security Group Manually  then write terraform code and use import utility to import the manual resource.

   Step 34 : Understand Terraform Cloud and Enterprise capabilities

      What is terraform cloud

      Terrform Offerings

      LAB:Setup Terraform Cloud

         Step 1: Create the Terrform Free account

         Step 2: Create an Organization

         Step 3: Setup the version Control

               Signup for github

               verify the email

               Create a repository

               Setup the OAuth for application 

         Step 4: Upload your project file to github

         Step 5: Create Workspace

         Step 6: Configure the Terraform Environment Variables

         Step 7: Use Queue Plan to Run Terraform Plan

PROJECT 

SITE-TO-SITE HIGHLY AVALIABLE VPN MULTI-CLOUD (AWS-AZURE)

   Step 1 - Azure Setup

      Laying Out Azure Network

         One Resource Group

         One vNet

         A subnet for the virtual machines named subnet_1 and a subnet for the VPN tunnel with a mandatory name of GatewaySubnet

      Setup Azure Virtual Gateway

   Step 2 - AWS Setup

      Create VPC

      Create Subnet

      Internet Gateway

      Route Table & Route

   Step 3 - Establishing the Connection

   Step 4 - Test Multi-Cloud Setup