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
The dhcp-all-interfaces and simple-init elements did not have the ISC
DHCP Client package mapped for OpenSUSE, which caused DIB to fail with
"'isc-dhcp-client' not found in package names. Trying capabilities."
Similarly, the bootloader element did not have the grub-pc package
properly mapped for OpenSuse, which caused DIB to fail with "Package
'grub-pc' not found.".
This patch adds the package mappings for these elements so that the
opensuse element can be created and booted successfully.
Change-Id: Ife478158fec3a95de73a9206b38dcc6511d56cc8
Every platform has a different name for their DHCP client, so use a
generic name "dhcp-client" in the package name and let everyone choose
their sub-name. This also brings some consistency across simple-init
& dhcp-all-interfaces
Change-Id: I797aa7aacb13dfb7f35700463dc11d55552eb108
This makes use of the dhcpcd package and it's ability to run on all
interfaces by default. We disable the privacy extensions and dhcp
overriding the hostname (both are enabled by default). Other than
that it 'just works' and was the method used to bring up interfaces
on Gentoo Openstack images before we switched to building with DIB.
Change-Id: I02c14927d70b22f560c6fc149fefca0f93933f56
