As the official says, it is essentially important for every developers or system administrators to deploy stack on AWS. I am one of the them who recognized its importance as I learned CloudFormation in the past months.
"AWS CloudFormation gives developers and systems administrators an easy way to create and manage a collection of related AWS resources, provisioning and updating them in an orderly and predictable fashion." http://aws.amazon.com/cloudformation/
I was considering to install LAMP packages and provisioning MySQL replication configuration on EC2 Instance with UserData property of AWS::EC2::Instance and Cloud-init (AWS::CloudFormation::Init) at first, but I recognized that it would make it hard to maintain the templates in the future because the templates would be more complicated to achieve it by using those functions.
I'm thinking of trying OpsWorks to progress deployment and provisioning at the next step.
