Using bbr with concourse-bosh-deployment

We have deployed concourse 5.7.0 using the concourse-bosh-deployment. Now we want to enable bbr to back up the concourse database. We have 3 web VMs, 3 worker VMs, and a postgres DB VM in our deployment. We are not sure which operations file we should use. Should we use backup-atc.yml or backup-atc-colocated-web.yml ?

Use backup-atc.yml.

To explain why; to get BBR working for your Concourse deployment you need to place the bbr-atcdb and backup-and-restore-sdk jobs on the same vm that postgres is running on. Hope that helps.