With https://github.com/NixOS/nixops/pull/1464 we can provide known_hosts independently of ~/.ssh/known_hosts.
Most use cases don't need this file to be written anyway, so we can stop doing so and make the existing functionality available as a separate subcommand for those who do rely on it in their workflow.
This further simplifies the common case where all ssh access happens through nixops ssh.
With https://github.com/NixOS/nixops/pull/1464 we can provide known_hosts independently of
~/.ssh/known_hosts. Most use cases don't need this file to be written anyway, so we can stop doing so and make the existing functionality available as a separate subcommand for those who do rely on it in their workflow. This further simplifies the common case where all ssh access happens throughnixops ssh.