Using set -e in all of our scripts will prevent some subtle bugs
from slipping in, and will allow us to enforce use of set -e with
tooling.
This change also adds -u and set -o pipefail in the less complex
scripts where it is unlikely to cause problems. A follow-up change
will enable those options in the complex scripts so that if it
breaks something it can be reverted easily.
Change-Id: I0ad358ccb98da7277a0ee2e9ce8fda98438675eb
When `/etc/selinux/config' does not exist, although selinux has
already been disabled, the image creation will fail.
Change-Id: I9e4a9a006073fd3f708049407ef98f82c3f399d1
Having all security enabled is not always interesting, e.g. when
developing or testing new elements.
Change-Id: I828ecedc805ce4f89d60d185994eaa9c651d436a
