I have used ansible to manage large production deployments of AWS infrastructure and what I will say is that it is very good at doing it, but it requires a lot

I have used ansible to manage large production deployments of AWS infrastructure and what I will say is that it is very good at doing it, but it requires a lot of work compared to using something like terraform or cloud formation. Its not hard to have one playbook to provision all your infrastructure and make sure its up and running it just takes a good amount of lookups and facts calls. The only reason I advocate for doing it is if a team will have a small infrastructure complexity ( like a basic ELB -> ASG -> RDS/EC2/S3 ) and they don't want to bring in more complex tools. Using ansible means you can use one tool to manage both your AMI's for immutable infrastructure and the infrastructure its self ( and can easily script your continuous deployment ). Once you start to really get a complex footprint getting a dedicated tool for infrastructure makes a lot of sense.