[JIRA] (OVIRT-1880) Manage bare metals with beaker

Manage bare metals with beaker ------------------------------ Key: OVIRT-1880 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1880 Project: oVirt - virtualization made easy Issue Type: Improvement Components: Jenkins Slaves Reporter: Barak Korren Assignee: infra There are multiple reasons why we may want to manage our bare-metal slaves with beaker: * It will allow us to have auto-reprovisioning for them, perhaps even after every job * It will allow us to scale up to multiple jenkins masters while sharing host resources * If may allow us to safely move `global_setup.sh` to be executed before a jobs starts and not by the job itself.