[JIRA] (OVIRT-1042) Make OST experimental flow use mirrors

Make OST experimental flow use mirrors -------------------------------------- Key: OVIRT-1042 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1042 Project: oVirt - virtualization made easy Issue Type: Improvement Components: Repositories Mgmt Reporter: Barak Korren Assignee: infra Priority: High Labels: system-tests Right now the mirrors had be integrated only into mock-runner.sh. We need to have OST use the mirrors too.