/usr/share/diskimage-builder/elements/apt-sources/README.rst is in python-diskimage-builder 1.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | ===========
apt-sources
===========
Specify an apt sources.list file which is used during image building and then
remains on the image when it is run.
Environment Variables
---------------------
DIB_APT_SOURCES
:Required: No
:Default: None (Does not replace sources.list file)
:Description: Path to a file on the build host which is used in place of
``/etc/apt/sources.list``
:Example: ``DIB_APT_SOURCES=/etc/apt/sources.list`` will use the same
sources.list as the build host.
|