Logs into a remote host using ssh. This can be used to open a remote sesssion, but ususally it's used by other methods (especially base-exec-user) to remotely execute a command.
base-ssh-login SERVICE [ COMMAND ]
SERVICE: a key of an user or host definition in the repository. From this, the following properties are used:HOST_REF (required if REMOTE_HOST is not set): A key to a host definition in the repository.REMOTE_HOST (optional): If REMOTE_HOST is not defined, HOST_REF must be present.REMOTE_USER (optional): The user execute the command remotely. If not present, same as local user will be taken.COMMAND: a command to be executed. If not present, an interactive shell will be opened by ssh.Returns the output of the remote command.