COM03-AWS200 - Create an Auto Scaling Group

Cloud Service Provider

Amazon Web Services

Difficulty

Level 200 (Intermediate)

Project's Author(s)

Objectives

You need to complete the following:

Create a Launch Configuration
Create an Auto Scaling Group with a minimum of two and maximum of five EC2 instances
Terminate one instance manually
After the ASG is in place, increase the desired number of instances to three
Delete all the resources you created

You need to answer the following:

What are the key differences between a Launch Template and Launch Configuration?
What happens if you terminate one of the running instances in an ASG manually?
How can you set and change the minimum, desired and maximum number of instances in an ASG?
Based on what metrics can an ASG spin up / spin down instances?
What EC2 configuration settings can you set in a Launch Template/Configuration?
Can you use Spot instances with a Launch Template/Configuration?
How many subnets and regions can a single ASG utilize?
What is the difference between "desired capacity" and "minimum capacity"?
In which order will EC2 instances be terminated in case of a scale-in event?

References

Tips

Use t2.micro instances for the Auto Scaling Group to avoid unexpected charges.
Don't panic if the instances always come back after you delete them, there's a reason for that.