0214e43479
This patch introduces a few new baremetal states, which are used to track the deploy process. Now, nova-baremetal-deploy-helper updates the bm_nodes record directly when it begins and finishes deploying an image to that node. The next patch will add a LoopingCall inside driver.spawn() to wait for the deploy to complete. Also, since there can not be >1 active deployment per node, there is no need to have a separate table for storing them. This patch drops the table bm_deployments and adds the important information it contained to bm_nodes. Since the previous behavior was to mark a deployment as deleted once it completed, there is no need to copy any data from bm_deployments prior to dropping the table -- assuming that no active deployments are in process when the migration is run. Since this is the first migration for the baremetal database, it also adds a new test class, TestBaremetalMigrations, and refactors the test_migrations.py file to allow for multiple test classes. partially implements fix for bug 1096723 Change-Id: Iad30b462d49c88fc19babed43a2fb8540b1fad30