Don't call it "server manifest". It'll confuse people. You mean "inventory". You can dynamically populate "facts" and "inventory". See: https://github.com/ansi

Don't call it "server manifest". It'll confuse people. You mean "inventory". You can dynamically populate "facts" and "inventory". See: https://github.com/ansible-provisioning/ansible-provisioning https://github.com/ansible-provisioning/ansible-provisioning http://jpmens.net/2013/06/18/adapting-inventory-for-ansible/ http://jpmens.net/2013/06/18/adapting-inventory-for-ansible/ Especially for ec2 there is many modules that allows you to do that too. You can easily specify an inventory file which you populates dynamically. There is also a lot being done about this in v1.3. HTH