initial draft for workshop

terraform-workshop/index.md

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+# Terraform Workshop
+
+
+---
+
+## What is Terraform
+
+IaC (Infrastructure as Code) framework which enables programatic definition,
+deployment and management of infrastructure resources for cloud and on-premises 
+in a declarative manner. It targets all major cloud platforms (GCP, AWS, Azure, DO etc.)
+
+---
+
+## Why do We Need it
+
+* Standardization of deployment to ensure a consistent state
+    * Version control
+    * Deploying an additional clone env for testing
+
+* Easier auditability to improve quality and security
+    * Modular - reuse & ease of understanding
+    * Resource Graph (dependency graph + parallel execution when possible)
+    * Version control
+
+* Enables use of hardened deployment pipelines
+
+* Enables immutable infrastructure
+
+---
+
+## Human-Readible Configuration Language
+
+* HashiCorp Configuration Language (HCL) or JSON
+
+```
+provider "aws" {
+  region = "us-west-2"
+}
+
+resource "aws_instance" "example" {
+  ami           = "ami-0c55b159cbfafe1f0"  # Amazon Linux 2 AMI ID
+  instance_type = "t2.micro"
+
+  tags = {
+    Name = "HelloWorldEC2Instance"
+  }
+}
+
+output "instance_public_ip" {
+  value = aws_instance.example.public_ip
+}
+
+``` 
+
+---
+
+## Workflow
+
+* Write your configuration file
+
+* Use the the `terraform plan` action to simulate deployment of resources and assess the outcome
+
+* Use `terraform apply` to actually deploy resources
+
+---
+
+# Exercise
+
+* Set up local credentials for your cloud platform of choice
+
+* Write a file that deploys an EC2 instance
+
+* Use `terraform plan` and `terraform apply` in order to deploy the resource
+
+* Remove the resource by updating your configuration file and using `terraform plan` and `terraform apply`
+
+---
+
+# Extend Configuration
+
+* Add a VPC
+
+* Define security group that limits ingress and egress to port 22
+
+* Add SSH key(s) which may connect to the instance
+
+---
+
+# Next Steps
+
+* ...
+