diskimage-builder

History

Ian Wienand 12b60c4088 Mount /sys RO As noted inline, this works around potential issues by being a strong indication you are in a container (e.g. [1]). Since nothing should be changing anything on the host/build system, this is a generically safer way to operate. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1975588 Change-Id: Ic6802c4ffc2e825f129af10717860a2d1770fe80		2021-07-05 11:45:02 +10:00
..
environment.d	Add 'DIB_UBUNTU_MIRROR_DISTS' to ubuntu-minimal	2021-01-27 10:32:49 +02:00
root.d	Mount /sys RO	2021-07-05 11:45:02 +10:00
test-elements	ubuntu-minimal: Add Ubuntu Focal test build	2020-05-21 14:03:54 +10:00
element-deps	Merge branch 'master' into merge-branch	2017-02-09 13:35:53 +11:00
element-provides	Move elements & lib relative to diskimage_builder package	2016-11-01 17:27:41 -07:00
package-installs.yaml	Revert "Revert "ubuntu-minimal : only install 16.04 HWE kernel on xenial""	2020-05-27 06:18:02 +10:00
README.rst	Add 'DIB_UBUNTU_MIRROR_DISTS' to ubuntu-minimal	2021-01-27 10:32:49 +02:00

README.rst

==============
ubuntu-minimal
==============

The ``ubuntu-minimal`` element uses debootstrap for generating a
minimal image. In contrast the ``ubuntu`` element uses the cloud-image
as the initial base.

By default this element creates the latest LTS release.  The exact
setting can be found in the element's ``environment.d`` directory in
the variable ``DIB_RELEASE``.  If a different release of Ubuntu should
be created, the variable ``DIB_RELEASE`` can be set appropriately.

Note that this element installs ``systemd-sysv`` as the init system for
18.04+.

Environment Variables
---------------------

DIB_UBUNTU_KERNEL:
  :Required: No
  :Default: ``linux-image-generic``
  :Description: Specifies the kernel meta package to install in the image.
  :Example: ``DIB_UBUNTU_KERNEL=linux-image-kvm``
  :Options: ``linux-image-generic``, ``linux-image-kvm``,
            ``linux-image-virtual``
  :Notes: The element must know about the package, otherwise it will select
          the default.


DIB_UBUNTU_MIRROR_DISTS:
  :Required: No
  :Default: ``updates,security,backports``
  :Description:  Allow to manage 'dists' repos
  :Example: ``DIB_UBUNTU_MIRROR_DISTS=updates,security``
  :Notes: For some deployment,
          is may be required to disable backport|update|etc packages integration.

.. element_deps::