Deploying EC2 instances using different configuration files and puppet

edit

Thanks for the response. Is there a way to call a particular YAML file in heira. Like if I have a dev and a prod YAML file and I want my puppet code (that launches one EC2 instance) to pick either of those files based on some parameter I give while invoking puppet apply command?

hiera can be configured to supply parameters based on any of the facts available - for example, we use domain, servernames as parameters to specify our instances. For something like prod, test etc. it's probably worthwhile looking at the environment fact.

but that would be useful if I have a master-agent setup right? I have one master that I use to deploy new instances. I have updated the question to be a little more clear in my needs :)

I'd look at setting a custom fact to define the type of server and then adding that to your hiera hierarchy definition and then naming the files according.

I don't think that would work. I only have a master puppet server and I can't set different custom facts for a single key "environment" to make it pick relevant file. In a way I can do but I'll have to change that fact every time I deploy something different. It is similar to changing hiera file.