In this chapter, we will focus on how to configure instances in VPC for Auto Scaling considering what and how configuration to make application is highly available.
It is important to understand what exactly scaling is! In this chapter, we will cover vertical scaling and horizontal scaling.
After understanding basics about scaling and types of scaling, we will create an instance in the default VPC, install runtime environment, and deploy a sample application.
Once the instance is ready, we will create an Amazon Machine Image (AMI) out of it, so it can be used while creating an Auto Scaling group.
Once the AMI is ready, we will create an Auto Scaling group. However, we need to launch the configuration created before the Auto Scaling group is created.
 We will cover the following major topics in this chapter:
- An overview of Auto Scaling
- Vertical and horizontal...
