In process of changing https://access.redhat.com/documentation/en-us/red_hat_quay/3.3/html/deploy_red_hat_quay_-_basic/deploying_red_hat_quay

to use `podman` command instead of `docker`, we introduce a slight regression in that the `–restart=always` flag is not supported.  Instead, `podman` needs a systemd service file registered to allow the containers to restart after a node reboot.

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_atomic_host/7/html/managing_containers/running_containers_as_systemd_services_with_podman

Task is to define the necessary systemd files as per the above link for Quay, Postgres, Redis, etc. so that we can add to the docs and maintain parity with `docker` command.