Resuscitate the configuration for roswell, the semi-portable
configuration I use for ec2 development boxes. Lots of the changes here
are trying to get Tramp working.
Change-Id: I2dc2fd1d9aa76e145fa3f3f847af761cb652ab47
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5798
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI