Execution - EC2 and Lambda
The core of AWS is EC2 (https://aws.amazon.com/ec2/), which lets you create Virtual Machines. Amazon uses the Xen hypervisor (https://www.xenproject.org/) to run Virtual Machines, and Amazon Machine Images (AMIs) to install them.
AWS has a huge list of AMIs you can choose from; you can also create your own AMIs by tweaking an existing AMI. Working with AMIs is quite similar to working with Docker images. Once you have picked an AMI from the Amazon console, you can launch an instance, and, after it has booted, you can use SSH into it and start working.
At any moment, you can snapshot the VM and create an AMI that saves the instance state. This feature is quite useful if you want to manually set up a server, then use it as a basis for deploying clusters.
An EC2 instance comes in different series (https://aws.amazon.com/ec2/instance-types/). The T2, M3, and M4 series are for a general purpose. The T series uses a bursting technology, which boosts the baseline performance...
