[Starlingx-discuss] Failed when add subcloud on Starlingx 4.0 : deploy-prep-failed

[Popoi Zen]

I have following environment:
___________________________________________________________________________
| VM Name                    | Hostname |  IP MGMT         | IP OAM     |
               Type                    |
| ----------                        | -----------------| ------------------
| -------------- | -------------------------------------|
| cc-duplex-controller-0  | controller-0  | 192.168.20.3 | 10.10.20.3 | AIO
Duplex - Central Cloud |
| cc-duplex-controller-1  | controller-1 | 192.168.20.4  | 10.10.20.4 | AIO
Duplex - Central Cloud |
-------------------------------------------------------------------------------------------------------------------------------
| sc-duplex-controller-0  | localhost  |              -            |
10.10.30.3 | AIO Duplex - Sub Cloud |
| sc-duplex-controller-1  | -               |              -            |
10.10.20.4 | AIO Duplex - Sub Cloud |
| sc-duplex-controller-2  | -               |              -            |
10.10.20.5 | AIO Duplex - Sub Cloud |

My subcloud YAML file:

system_mode: duplex
> name: "Region-Sub1"
> description: "Sub1Site"
> location: "SUB1"
> timezone: Asia/Jakarta
>
> management_subnet: 192.168.30.0/24
> management_start_address: 192.168.30.2
> management_end_address: 192.168.30.50
> management_gateway_address: 192.168.30.1
>
> external_oam_subnet: 10.10.30.0/24
> external_oam_gateway_address: 10.10.30.1
> external_oam_floating_address: 10.10.30.2
>
> systemcontroller_gateway_address: 192.168.20.1
>

Every time I try to add subcloud using command:
`dcmanager subcloud add --bootstrap-address 10.10.30.3 --bootstrap-values
subcloud-1.yml`
 It always end up failed like below:

[sysadmin at controller-0 ~(keystone_admin)]$ dcmanager subcloud list
+----+------------+------------+--------------+--------------------+---------+
| id | name       | management | availability | deploy status       | sync
   |
+----+------------+------------+--------------+--------------------+---------+
|  6 | Region-BGR | unmanaged  | offline      | deploy-prep-failed |
unknown |
+----+------------+------------+--------------+--------------------+---------+

There is no log subcloud log reproduced or maybe any workaround I could try?
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