Fewer lines almost always better.  Also, we don't want to spread
these out unless we have to.

... we'll need this later for the TLS cert.

update the localdev grid's secrets and other configuration to reflect this

testing and production are broken by this commit since they have not been
updated similarly

There is no swap to use but (a) try the setting anyway and (b) maybe there
will be at some point.

we deleted it already but it got brought back

Also this no longer needs to be rec

Just require hostName and domain instead of an extra publicIPv4 option.  Leave
behind a similar option, `publicAddress`, just in case it needs to be
overridden at some point, but stop supplying a value for it anywhere.

Maybe later?

Put its contents in it and then use them from there instead of importing them
all over the rest of the code.

Also change the `domain` parameter for Grafana to always
use that beautiful name - besides display it's cosmetic anyway
IIANM so I'll not parametrize it for now.

For consistency reasons: Even if they had a perfectly good swap
partition already, and also for AWS hosts.