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
Add missing growroot initscript and pkg-map entries for Gentoo.
growpart was added to Gentoo with [1]
Update the readme to reflect reality too (fedora added with
I5630dc638f85b1e80795826ef36a306632075460)
[1] https://packages.gentoo.org/packages/sys-fs/growpart
Closes-Bug: #1539273
Change-Id: I29056c7297489ec04f37757dbe33976901eceb49
Add systemd/fedora support to growroot element. This involves
installing the correct packages, shipping the systemd service file and
ensuring it is enabled.
Note the required growfs/resize packages for Ubuntu/Debian are
installed in other places. This is probably a bug in that path, but I
have not addressed that here.
I have tested this with a F23 build with all openstack-infra elements,
uploaded to RAX, and it boots and resizes the main file-system.
Change-Id: I5630dc638f85b1e80795826ef36a306632075460
