Defaults:mistral !requiretty mistral ALL = NOPASSWD: /bin/nova-manage cell_v2 discover_hosts * mistral ALL = NOPASSWD: /usr/bin/tar --xattrs --ignore-failed-read -C / -cf /var/tmp/undercloud-backup-*.tar * mistral ALL = NOPASSWD: /usr/bin/chown mistral. /var/tmp/undercloud-backup-*/filesystem-*.tar