Octavia amphora load balancers fail to create -- Flavor 65 could not be found

[Carlos Goncalves]

Amphora load balancers fail to create. The LB goes into ERROR. Checking the logs, it becomes clear that the reason is because the Nova flavor could not be found.

2019-05-23 10:12:12.525 19 WARNING octavia.controller.worker.controller_worker [-] Task 'octavia.controller.worker.tasks.lifecycle_tasks.LoadBalancerIDToErrorOnRevertTask' (72156771-1d27-4217-b5be-953aa3b34a33) transitioned into state 'REVERTED' from state 'REVERTING' with result 'None'
2019-05-23 10:12:12.529 19 WARNING octavia.controller.worker.controller_worker [-] Flow 'octavia-create-loadbalancer-flow' (3d91abe4-cf4b-47c5-b052-2a2bd0a48db0) transitioned into state 'REVERTED' from state 'RUNNING'
2019-05-23 10:12:12.530 19 ERROR oslo_messaging.rpc.server [-] Exception during message handling: octavia.common.exceptions.ComputeBuildException: Failed to build compute instance due to: Flavor 65 could not be found. (HTTP 400) (Request-ID: req-484a0ca8-82a0-4b2a-b58c-ed6425924823)

How reproducible:
100%

Steps to Reproduce:
1. Deploy OSP 15 with Octavia enabled
2. Create load balancer (provider: amphora)

TripleO Stein based deployment.

Originally reported at https://bugzilla.redhat.com/show_bug.cgi?id=1713306

[Brent Eagles (beagles)]

Fix provided to stein here: https://review.opendev.org/#/c/661844/

[Brent Eagles (beagles)]

Train fix here: https://review.opendev.org/#/c/643051/