While you can create an instance via the AWS web console, it involves many distracting options. When developing and testing, the CLI tool is the best way to provision instances.
While the key-name argument is optional, you will not be able to connect to your instance unless you have pre-configured some other way of logging in.
The t2.micro instance type used in this recipe is included in the AWS free tier. You can run one micro instance per month for free during the first 12 months of your usage. See https://aws.amazon.com/free for more information.
As no VPC or security groups are specified, the instance will be launched in your account's default VPC and security group. The default security group allows access from anywhere, ...
