instead of editing /etc/sudoers directly, which is more fragile
ALL:ALL in sudoers rules allows those that match the rule to impersonate
any user and any group. This matches closer to the default/suggested
configurations in /etc/sudoers
the build runs out of space with only 1G, furthermore it was
doing a hard reset without any sync, so many files touched in
the cloud.sh script were empty on the image
