[centos@centos-7-ci-cc ~]$ sudo tail -f /var/log/cloud-init.log ... 2018-10-17 21:54:06,826 - helpers.py[DEBUG]: Running config-package-update-upgrade-install using lock () ... 2018-10-17 21:54:06,988 - helpers.py[DEBUG]: Running update-sources using lock () ... 2018-10-17 21:54:07,006 - util.py[DEBUG]: Running command ['yum', '-t', '-y', 'makecache'] with allowed return codes [0] (shell=False, capture=False) ... 2018-10-17 22:00:06,125 - util.py[DEBUG]: Running command ['yum', '-t', '-y', 'upgrade'] with allowed return codes [0] (shell=False, capture=False)