[openstack-dev] [nova] Server Groups - remove VM from group?

Joe Cropper cropper.joe at gmail.com
Mon Aug 25 16:56:42 UTC 2014


That was indeed a rather long (and insightful) thread on the topic.
It sounds like there are still some healthy discussions worth having
on the subject -- either exploring your [potentially superseding]
proposal, or minimally rounding out the existing server group API to
support "add existing VM" [1] and "remove VM" -- I think these would
make it a lot more usable (I'm thinking of the poor cloud
administrator that makes a mistake when they boot an instance and
either forgets to put it in a group or puts it in the wrong group --
it's square 1 for them)?

Is this queued up as a discussion point for Paris?  If so, count me in!

Thanks,
Joe

On Mon, Aug 25, 2014 at 11:08 AM, Jay Pipes <jaypipes at gmail.com> wrote:
> On 08/25/2014 11:31 AM, Joe Cropper wrote:
>>
>> Thanks Jay.  Those are the same types of questions I was pondering as
>> well when debating how someone might use this.  I think what we have
>> is fine for a first pass, but that's what I was poking at... whether
>> some of the abilities to add/remove members dynamically could exist
>> (e.g., I no longer want this VM to have an anti-affinity policy
>> relative to the others, etc.).
>
>
> I guess what I was getting at is that I think the whole interface is flawed
> and it's not worth putting in the effort to make it slightly less flawed.
>
> Best,
> -jay
>
>
>> - Joe
>>
>> On Mon, Aug 25, 2014 at 10:16 AM, Jay Pipes <jaypipes at gmail.com> wrote:
>>>
>>> On 08/25/2014 11:10 AM, Joe Cropper wrote:
>>>>
>>>>
>>>> Hello,
>>>>
>>>> Is our long-term vision to allow a VMs to be dynamically added/removed
>>>> from a group?  That is, unless I'm overlooking something, it appears
>>>> that you can only add a VM to a server group at VM boot time and
>>>> effectively remove it by deleting the VM?
>>>>
>>>> Just curious if this was a design point, or merely an approach at a
>>>> staged implementation [that might welcome some additions]?  :)
>>>
>>>
>>>
>>> See here:
>>>
>>> http://lists.openstack.org/pipermail/openstack-dev/2014-April/033746.html
>>>
>>> If I had my druthers, I would revert the whole extension.
>>>
>>> -jay
>>>
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