With this tutorial, you learn the basics of AWS Lambda by creating a classic “Hello World” function. You’ll use CloudFormation from the command line to create the Lambda function, then manually invoke it to prove it works.
Getting Started with AWS CloudFormation (Tutorial)
This step-by-step, hands-on AWS CloudFormation tutorial is ideal for beginners. You will create a simple CloudFormation stack containing a single resource. And you’ll be doing it twice: with AWS CloudFormation Console, then with AWS Command Line Interface (AWS CLI).
What is AWS CloudFormation?
If you have more than a few Amazon Web Services (AWS) resources, it can get a little tricky managing them each individually.
AWS CloudFormation to the rescue!
Create EC2 Key Pairs Using AWS CLI
A key pair is required when launching a new AWS EC2 instance. Without a key pair, you won’t be able to connect to the instance. Here’s how to create a key pair without having to go to the Amazon Management Console.
Got a new AWS account? Do these 3 steps now.
A new AWS account is granted, by default, root privileges. That means it has access to everything. Best practices dictate we avoid using root privileges whenever possible: Enable Multi-Factor Authentication, create and use an Administrator user account instead of root. Also, setup billing alerts to avoid surprise charges.