With the CDot Redis migration coming to a conclusion, we should start scaling CDot VMs out, see if things are working out as expected. ## Action items - [x] Make sure the Rails app is able to handle two different versions running at once (e.g. able to handle old and new DB schemas when a deploy is underway) - [x] Make sure Ansible deploy playbook is serialized so we don't deploy to all hosts at once - [x] Increase `stg-ref` VMs to 2 - [x] Increase `stg` VMs to 2 - [x] Increase `prd` VMs to 3 ## Status Update As of 2023-06-20, we have increased the number of VMs for all three environments. We will be waiting for a ~~week~~ month to see if any weird behavior manifests in production before consider this epic done.