lbaas v2 member create should not require subnet_id

[Brandon Logan]

subnet_id on a member is currently required. It should be optional and if not provided, it can be assumed the member can be reached by the load balancer (through the loadbalancer's vip subnet)

[Numan Siddique (numansiddique)]

@Brandon - Please feel to assign it back to yourself if you are working on this. Else I am happy to work on this issue.

[Brandon Logan (brandon-logan)]

@Numan - Go for it! I would like this to get in before March 5 though, so if you can get it up in review by then that'd be great. If you need any help let me know.

[Numan Siddique (numansiddique)]

I am on it.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/160460

[OpenStack Infra (hudson-openstack)]

Change abandoned by Kyle Mestery (<email address hidden>) on branch: master
Review: https://review.openstack.org/160460
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Numan Siddique (<email address hidden>) on branch: master
Review: https://review.openstack.org/160460
Reason: Abandoning as this fix is probably not required.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/219985

[OpenStack Infra (hudson-openstack)]

Change abandoned by Armando Migliaccio (<email address hidden>) on branch: master
Review: https://review.openstack.org/219985
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/267935

[Brandon Logan (brandon-logan)]

After discussing this with other people today, we don't think this is a good idea anymore because it requires some assumptions to be made both on the user's side and driver's side. We should keep it explicit.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Armando Migliaccio (<email address hidden>) on branch: master
Review: https://review.openstack.org/267935
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[Launchpad Janitor (janitor)]

[Expired for octavia because there has been no activity for 60 days.]