Step 1: Create and configure the Auto Scaling group – AWS CodeDeploy

Call the create-launch-template command to create
an Amazon EC2 launch template.

Before you call this command, you need the ID of an AMI that works for
this tutorial, represented by the placeholder
image-id. You also need the name of an Amazon EC2
instance key pair to enable access to the Amazon EC2 instance, represented by the
placeholder key-name.

To get the ID of an AMI that works with this tutorial:

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

2. In the navigation pane, under Instances,
   choose Instances, and then choose
   Launch Instance.

3. On the Quick Start tab of the
   Choose an Amazon Machine Image page, note
   the ID of the AMI next to Amazon Linux 2 AMI,
   Red Hat Enterprise Linux 7.1, Ubuntu Server 14.04
   LTS, or Microsoft Windows Server 2012
   R2.

   Note

   If you have a custom version of an AMI that is compatible with
   CodeDeploy, choose it here instead of browsing through the
   Quick Start tab. For information about
   using a custom AMI with CodeDeploy and Amazon EC2 Auto Scaling, see Using a custom AMI with CodeDeploy
   and Amazon EC2 Auto Scaling.

For the Amazon EC2 instance key pair, use the name of your Amazon EC2 instance key
pair.

Call the create-launch-template command.

On local Linux, macOS, or Unix machines:

aws ec2 create-launch-template \
  --launch-template-name CodeDeployDemo-AS-Launch-Template \
  --launch-template-data file://config.json

The contents of the config.json file:

{
 
  "InstanceType":"t1.micro",
  "ImageId":"image-id",
  "IamInstanceProfile":
{
    "Name":"CodeDeployDemo-EC2-Instance-Profile"
  },
  "KeyName":"key-name"
}

On local Windows machines:

aws ec2 create-launch-template --launch-template-name CodeDeployDemo-AS-Launch-Template --launch-template-data file://config.json

The contents of the config.json file:

{
 
  "InstanceType":"t1.micro",
  "ImageId":"image-id",
  "IamInstanceProfile":
{
    "Name":"CodeDeployDemo-EC2-Instance-Profile"
  },
  "KeyName":"key-name"
}

These commands, along with the config.json file, create an Amazon EC2 launch template named CodeDeployDemo-AS-Launch-Template for your Auto Scaling
group that will be created in a following step based on the t1.micro Amazon EC2 instance type. Based on your input for ImageId,
IamInstanceProfile, and KeyName, the launch template also specifies the AMI ID, the name of the instance profile
associated with the IAM role to pass to instances at launch, and the Amazon EC2 key pair to use when connecting to instances.