This changes the nova-multi-cell job to essentially
force cross-cell resize and cold migration. By "force"
I mean there is only one compute in each cell and
resize to the same host is disabled, so the scheduler
has no option but to move the server to the other cell.
This adds a new role to write the nova policy.yaml file
to enable cross-cell resize and a pre-run playbook so
that the policy file setup before tempest runs.
Part of blueprint cross-cell-resize
Change-Id: Ia4f3671c40e69674afc7a96b5d9b198dabaa4224
For the most part this should be a pretty straight-forward
port of the run.yaml. The most complicated thing is executing
the post_test_hook.sh script. For that, a new post-run playbook
and role are added.
The relative path to devstack scripts in post_test_hook.sh itself
had to drop the 'new' directory since we are no longer executing
the script through devstack-gate anymore the 'new' path does not
exist.
Change-Id: Ie3dc90862c895a8bd9bff4511a16254945f45478
