Description of problem:

I get an error when I try to configure a remote DB on a CFME 5.6.0 appliance with the command appliance_console_cli.

How reproducible:
Spin up 2 appliances unconfigured.
On the first one send:
appliance_console_cli -H cloudforms-db -r 99 -i -h localhost -U root -p smartvm
On the second one send:
appliance_console_cli -r 99 -H cloudforms-webui -h <CF DB IP> -U root -p smartvm -K <CF DB IP> -s root -a smartvm

Actual results:
--On a fresh install of CloudForms 4.1 Beta CFME 5.6.0 appliance:

appliance_console_cli -r 99 -H cloudforms-webui -h <CF DB IP> -U root -p smartvm -K <CF DB IP> -s root -a smartvm
fetch encryption key
configuring external database
Create region starting
Create region complete

Job for evmserverd.service failed because the control process exited with error code. See "systemctl status evmserverd.service" and "journalctl -xe" for details.

/opt/rh/cfme-gemset/gems/awesome_spawn-1.4.0/lib/awesome_spawn.rb:105:in `run!': /bin/systemctl exit code: 1 (AwesomeSpawn::CommandResultError)
	from /opt/rh/cfme-gemset/gems/linux_admin-0.16.0/lib/linux_admin/common.rb:24:in `run!'
	from /opt/rh/cfme-gemset/gems/linux_admin-0.16.0/lib/linux_admin/service/systemd_service.rb:21:in `start'
	from /var/www/miq/vmdb/gems/pending/appliance_console/database_configuration.rb:67:in `post_activation'
	from /var/www/miq/vmdb/gems/pending/appliance_console/cli.rb:193:in `set_external_db'
	from /var/www/miq/vmdb/gems/pending/appliance_console/cli.rb:153:in `set_db'
	from /var/www/miq/vmdb/gems/pending/appliance_console/cli.rb:136:in `run'
	from /var/www/miq/vmdb/gems/pending/appliance_console/cli.rb:269:in `parse'
	from /usr/bin/appliance_console_cli:16:in `<main>'

After which the status of the appliance shows:

Hostname:             cloudforms-wkr1
IP Address:           192.168.0.6
Netmask:              255.255.255.0
Gateway:              192.168.0.1
Primary DNS:          8.8.4.4
Secondary DNS:        8.8.8.8
Search Order:         openstacklocal
MAC Address:          fa:16:3e:09:6b:6b
Timezone:             America/New_York
Local Database:       not running
CFME Database:        postgres @ localhost
Database/Region:      vmdb_production / 0
External Auth:        not configured
CFME Version:         5.6.0.0-beta1
CFME Console:         https://192.168.0.6

As you can see the DB is still local and the region still 0.

Expected results:
On a fresh install of CloudForms 4.0 CFME 5.5.2 appliances, the same commands work correctly.