When setting up a new cluster, using `encrypt_enable: true` will execute the command [nomad operator keygen](https://github.com/ansible-community/ansible-nomad/blob/master/tasks/get_gossip_key.yml#L40) which requires a running cluster. On a new cluster, there is no running cluster at the point of execution - there is no `server.hcl` either.