Question

How do you automate the creation of AMIs?

Answer 1

You can automate the creation of AMIs using AWS Lambda, AWS Step Functions, and AWS Systems Manager (SSM). You can also use infrastructure-as-code tools like AWS CloudFormation or HashiCorp Terraform.

Example using AWS Systems Manager Automation:

AWSTemplateFormatVersion: '2010-09-09'
Resources:
  AMICreationAutomation:
    Type: "AWS::SSM::Automation"
    Properties:
      DocumentName: "AWS-UpdateLinuxAmi"
      DocumentVersion: "1"
      TargetType: "/AWS::EC2::Instance"
      Parameters:
        AutomationAssumeRole:
          Default: "arn:aws:iam::123456789012:role/AWSAutomationRole"
        SourceAMIId:
          Default: "ami-12345678"
        InstanceType:
          Default: "t2.micro"