I created manually a working Vault cluster in HA mode with 3 EC2 instances behind ALB on AWS. Everything is working fine. Now I would like to automate my setup with Ansible (our current infra and provisioning tool). It makes sense for me to use an AutoScaling for Vault EC2 instances but I could not find howtos for such setup with DynamoDB backend. I found several ones for Consul backend which I would like to avoid due to additional complexity.
Has anyone implemented such setup on AWS? Is it easily possible to use DynamoDB as data and HA backend in Vault if EC2 instances are managed inside an AutoScaling Group?
Thanks in advance for all info!