This is a follow-on to 57ef187632.
There's two things going on here; DIB_MANIFEST_IMAGE_DIR is *outside*
the chroot on the build host. We copy the files here for posterity, I
guess. MANIFEST_IMAGE_PATH is *inside* the chroot and are the files
we want to ensure are locked to root.
The prior change modified the permissions on DIB_MANIFEST_IMAGE_DIR.
So the first time you build, it works -- then the second time,
assuming you're using the same output filename, it hits the root-owned
manifest directories and causes a build failure.
I have built with this and checked that the manifest files in the
image are locked to root:
$ virt-ls -a ./test.qcow2 -l /etc/dib-manifests
total 32
drwxr-xr-x 2 0 0 4096 May 24 03:39 .
drwxr-xr-x 53 0 0 4096 May 24 03:39 ..
-rw------- 1 0 0 15236 May 24 03:39 dib-manifest-dpkg-test
-rw------- 1 0 0 35 May 24 03:39 dib_arguments
-rw------- 1 0 0 137 May 24 03:39 dib_environment
Related-Bug: #1671842
Change-Id: I08319d0b5fcc461d40fe0be8427dcf0e37ad21e6
Manifests files can release sensitive information and therefore should
have restrictive permissions.
Change-Id: I64d6c830217a7d8b0172df2dc774079dcd1e2a68
Related-Bug: #1671842
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
