[Starlingx-discuss] User questions

Ngo, Tee Tee.Ngo at windriver.com
Tue Aug 22 13:56:46 UTC 2023


Sorry I missed the original email. Please see responses inline.

Tee

-----Original Message-----
From: Waines, Greg <Greg.Waines at windriver.com> 
Sent: Tuesday, August 22, 2023 8:25 AM
To: Ngo, Tee <Tee.Ngo at windriver.com>
Cc: Ildiko Vancsa <ildiko at openinfra.dev>; StarlingX ML <starlingx-discuss at lists.starlingx.io>
Subject: RE: [Starlingx-discuss] User questions

Can you respond to the subcloud questions below ?
thanks,
Greg.

-----Original Message-----
From: Ildiko Vancsa <ildiko at openinfra.dev> 
Sent: Tuesday, August 8, 2023 6:15 PM
To: StarlingX ML <starlingx-discuss at lists.starlingx.io>
Subject: [Starlingx-discuss] User questions

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Hi StarlingX Community,

I got the below questions about StarlingX, and need a little help with finding the answers:

1. Can a subcloud-group be rehomed (can see that a subcloud can, but what about a subcloud-group)?
[TN] No as the parameters required for rehoming are specific to each subcloud. Having said that, development has started for Geo redundancy capability which will enable subclouds that are registered with system peers to be re-homed as a group (subcloud-peer-group).

2. Can a subcloud belong to multiple subcloud groups for administrative and monitoring/reporting purposes?
   - For example, having all subclouds in a given region with the same update/version policies, and at the same time having all instances running a particular application to have specific settings for that application regardless of region setting?
[TN] From DC management perspective, subcloud group was designed for the purpose of orchestrated operation planning/scheduling/execution. For instance, subclouds belonging to a particular group can be patched/upgraded separately from other subclouds in the same DC in order to run a particular version of the custom app(s). There isn't a means to establish a relation between subcloud group and custom applications otherwise. 

3. Is it possible to provision a specific application to an entire subcloud-group in a single action?
[TN] There isn't a dcmanager/system command for this. One would need to write a small script for this custom provisioning.

4. Last one - is it possible to run OpenStack in subclouds? Most of the documentation only seems to mention K8s.
[TN] As OpenStack can run in a StarlingX standalone system, it should run in a subcloud as well. However, there were some issues with OpenStack on StarlingX since the switch to Debian which only got resolved since June this year. 
There is no support of OpenStack in the system controller. The system controller was designed to monitor and manage the subclouds. It's not meant to run custom apps/workloads that are not for these purposes. Keep in mind that StarlingX subcloud can be a simplex or multi-node with many workers and storage.

Thank you for your help in advance.

Best Regards,
Ildikó

———

Ildikó Váncsa
Director of Community
Open Infrastructure Foundation






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