OS X Server.app 4 Completely Breaks PostgreSQL

There a new flavor of brokenness with Server.app 4's PostgreSQL -- it doesn't even exist as a serveradmin service!

Does anyone know how to tell serveradmin to start/stop PostgreSQL?

I've been able to migrate my old data and get a running PostgreSQL server with these commands:

su -

mv /Library/Server/PostgreSQL/Data /Library/Server/PostgreSQL/DataOld

rm -fr /Library/Server/PostgreSQL/Data

mkdir -p /Library/Server/PostgreSQL/Data

chown -R _postgres:_postgres /Library/Server/PostgreSQL/Data

chmod 700 /Library/Server/PostgreSQL/Data

sudo -u _postgres /Applications/Server.app/Contents/ServerRoot/usr/bin/initdb /Library/Server/PostgreSQL/Data -E utf8 --lc-ctype=C

# assume migration put old pg data in /Library/Server/PostgreSQL/Data-9.2

sudo -u _postgres /Applications/Server.app/Contents/ServerRoot/usr/bin/pg_upgrade -b /Applications/Server.app/Contents/ServerRoot/usr/libexec/postgresql9.2 -B /Applications/Server.app/Contents/ServerRoot/usr/bin -d /Library/Server/PostgreSQL/Data-9.2 -D /Library/Server/PostgreSQL/Data

# Server.app 4 doesn't include the postgres launch plist!

# assume your previous <= Mavericks backup is in /Volumes/Backup

cp /Volumes/Backup/Applications/Server.app/Contents/ServerRoot/System/Library/Laun chDaemons/org.postgresql.postgres.plist /Applications/Server.app/Contents/ServerRoot/System/Library/LaunchDaemons/

launchctl load -w /Applications/Server.app/Contents/ServerRoot/System/Library/LaunchDaemons/org.p ostgresql.postgres.plist

lsof -i ':5432'

nmap -p 5432 localhost

See here and here for background on how to fix postgres in Server.app 3.1.2.

Now the problem is that postgres launches don't persist over reboots, and that serveradmin doesn't control postgres. The commands

sudo serveradmin start postgres

sudo serveradmin start expialidocious

both return the same error because neither are serveradmin-managed services.

How does one get serveradmin start postgres to work?