Currently Debian sets /etc/debian_version to "bullseye/sid" and, due
to a series of issues explained in [1] more fully "lsb_release -c" in
the OpenDev environment doesn't return the distribution code name.
Overriding this to the final release version fixes this.
[1] http://lists.opendev.org/pipermail/service-discuss/2021-April/000222.html
Change-Id: I00c1741dac6ad5f2c4bf855a207f17d8985bc763
Apt gets confused if it talks to a mirror with an older index than the
index currently cached by apt. This can happen when image builds use a
newer index than the booted image. Avoid these problems entirely by
removing those index caches at the end of image building.
Change-Id: I245d516ee8a44831b2c29612b782bad555c48a3f
Co-Author: Clark Boylan <clark.boylan@gmail.com>
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
