[JIRA] (OVIRT-1890) Kill all lago processes during slave cleanup

Kill all lago processes during slave cleanup -------------------------------------------- Key: OVIRT-1890 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1890 Project: oVirt - virtualization made easy Issue Type: Improvement Components: Lago, oVirt CI Reporter: Daniel Belenky Assignee: Daniel Belenky Sometimes we end up having stale lago processes after builds are being aborted. Until we'll find a permanent solution (such as a new runner for CI), we should add an ugly cleanup function to our slave cleanup to ensure lago is being killed.