====
base
====
This is the base element.
Almost all users will want to include this in their disk image build,
as it includes a lot of useful functionality.
The `DIB_CLOUD_INIT_ETC_HOSTS` environment variable can be used to
customize cloud-init's management of `/etc/hosts`:
* If the variable is set to something, write that value as
cloud-init's manage_etc_hosts.
* If the variable is set to an empty string, don't create
manage_etc_hosts setting (cloud-init will use its default value).
* If the variable is not set, use "localhost" for now. Later, not
setting the variable will mean using cloud-init's default. (To
preserve diskimage-builder's current default behavior in the
future, set the variable to "localhost" explicitly.)
Notes:
* If you are getting warnings during the build about your locale
being missing, consider installing/generating the relevant locale.
This may be as simple as having language-pack-XX installed in the
pre-install stage
* This element ensures /tmp/ccache will be available in the chroot
during the root, extra-data, pre-install, install and post-install
stages. /tmp/ccache is unavailable during block-device, finalise
and cleanup stages as it will have been automatically unmounted
by then.
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