Enable metadata when create server groups

[Guangya Liu (Jay Lau)]

instance_group object already support instance group metadata but the api extension do not support this.

We should enable this by default.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/109505

[Guangya Liu (Jay Lau) (jay-lau-513)]

This is related to https://blueprints.launchpad.net/nova/+spec/soft-affinity-for-server-group

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/110202

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/110248

[OpenStack Infra (hudson-openstack)]

Change abandoned by Sean Dague (<email address hidden>) on branch: master
Review: https://review.openstack.org/109505
Reason: This review is > 4 weeks without comment and currently blocked by a core reviewer with a -2. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and contacting the reviewer with the -2 on this review to ensure you address their concerns.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Jay Lau (<email address hidden>) on branch: master
Review: https://review.openstack.org/110202

[OpenStack Infra (hudson-openstack)]

Change abandoned by Jay Lau (<email address hidden>) on branch: master
Review: https://review.openstack.org/110248

[Amandeep (rattenpal-amandeep)]

Hi jay,
Are you working on this bug ?
please, let me know if you not working on it.

[Guangya Liu (Jay Lau) (jay-lau-513)]

Hi Amandeep, this bug seems not valid for now as all of the project do not plan to fix this.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/juno
Review: https://review.openstack.org/158378

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/juno
Review: https://review.openstack.org/158394

[OpenStack Infra (hudson-openstack)]

Change abandoned by Matt Riedemann (<email address hidden>) on branch: stable/juno
Review: https://review.openstack.org/158378
Reason: No activity in months so dropping this.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Zane Bitter (<email address hidden>) on branch: stable/juno
Review: https://review.openstack.org/158394

[Pushkar Umaranikar (pushkar-umaranikar)]

No progress on bug for > 4 weeks. Marking as invalid. Feel free to reopen.

[Takashi Natsume (natsume-takashi)]

The metadata support in server group has been removed since the following patch.
So it is not necessary to fix the issue.

Remove metadata/metadetails from instance/server groups
https://review.openstack.org/#/c/113354/