Commit Graph

4 Commits

Author SHA1 Message Date
Steve Baker
296c81b9ca Add DIB_YUM_REPO_PACKAGE as an alternative to DIB_YUM_REPO_CONF
A custom yum repository can now be configured by defining
`DIB_YUM_REPO_PACKAGE` as a yum available package or a URL to an rpm file.
This package can install repo files with any associated keys and
certificates.

A good example of such a package upstream is rdo-release[1] which
includes multiple repo files, the repo keys, and a root certificate.
This makes these repos impractical to install via DIB_YUM_REPO_CONF.

Downstream, repo packages like this a frequently used to bootstrap
development builds of RHEL with development repos.

[1] https://www.rdoproject.org/repos/rdo-release.rpm

Change-Id: I2832e723998c9bd7635cdf7541a4c20eff6294d2
2021-09-13 09:32:53 +12:00
Chandan Kumar (raukadah)
21a752ee4d Improved the documentation for DIB_DNF_MODULE_STREAMS
https://review.opendev.org/c/openstack/diskimage-builder/+/785138
adds the support for DIB_DNF_MODULE_STREAMS which is now available
for all Yum based distros.

This patch enhances the docs for using it for all Yum
based distributions.

Signed-off-by: Chandan Kumar (raukadah) <chkumar@redhat.com>
Change-Id: I29e726679c2b675b3c0cd95a3ff48fdad7cd5431
2021-04-08 11:22:43 +05:30
Chandan Kumar (raukadah)
ced54fea75 Make DIB_DNF_MODULE_STREAMS part of yum element
While building cloud images, it is common to set modules
for CentOS and RHEL images. Earlier it was part of rhel-common
which was specific to RHEL OS not for CentOS. Moving it
under yum element as module/stream can be enabled or disabled
via dnf itself.

Signed-off-by: Chandan Kumar (raukadah) <chkumar@redhat.com>
Change-Id: Idc0f277f97e92e4d003f059f01b59f1b5513da34
2021-04-07 16:06:09 +05:30
Ian Wienand
97c01e48ed Move elements & lib relative to diskimage_builder package
Currently we have all our elements and library files in a top-level
directory and install them into
<root>/share/diskimage-builder/[elements|lib] (where root is either /
or the root of a virtualenv).

The problem with this is that editable/development installs (pip -e)
do *not* install data_files.  Thus we have no canonical location to
look for elements -- leading to the various odd things we do such as a
whole bunch of guessing at the top of disk-image-create and having a
special test-loader in tests/test_elements.py so we can run python
unit tests on those elements that have it.

data_files is really the wrong thing to use for what are essentially
assets of the program.  data_files install works well for things like
config-files, init.d files or dropping documentation files.

By moving the elements under the diskimage_builder package, we always
know where they are relative to where we import from.  In fact,
pkg_resources has an api for this which we wrap in the new
diskimage_builder/paths.py helper [1].

We use this helper to find the correct path in the couple of places we
need to find the base-elements dir, and for the paths to import the
library shell functions.

Elements such as svc-map and pkg-map include python unit-tests, which
we do not need tests/test_elements.py to special-case load any more.
They just get found automatically by the normal subunit loader.

I have a follow-on change (I69ca3d26fede0506a6353c077c69f735c8d84d28)
to move disk-image-create to a regular python entry-point.

Unfortunately, this has to move to work with setuptools.  You'd think
a symlink under diskimage_builder/[elements|lib] would work, but it
doesn't.

[1] this API handles stuff like getting files out of .zip archive
modules, which we don't do.  Essentially for us it's returning
__file__.

Change-Id: I5e3e3c97f385b1a4ff2031a161a55b231895df5b
2016-11-01 17:27:41 -07:00