Spinning up an EC2 instance

Before you spin up any EC2 instance, you need to have some information available. Firstly, you should create an RSA key pair , save, and secure it. In addition, you have to choose an AMI. And then you need to know your network details such as VpcID, subnet, and Security Groups. We have already gone through the process of creating various network components. Refer to the previous chapter for more details. If you do not specify anything, defaults will be used for EC2. Let's get started.

To create a RSA key pair, you can use the following command:

PS C:\> (New-EC2KeyPair -KeyName "MyWebPressApp").KeyMaterial | Out-File C:\AWSKey\MyWebPressApp.pem

New-EC2KeyPair lets you create the key pair for your EC2 instance. The key pair is a combination of the public and private keys. AWS stores the public key, and you would be prompted to download or to save a private key. You can only create 5,000 keys in the region. As usual, for lifting the limit, you need to contact AWS...