software-versions.sh: Special-case postgres' software version
Minor version bumps of postgres are allowed in stable Ubuntu releases,
per security team policy. Thus for tagging OCI images we should
reference only the major version in this particular case.
The original code handled the rename of 'edge' branches to the new
naming scheme. Now that this renaming is completed, there is no need
for this logic.
For now, simply expect that the branch we are going to work in already
exists. This might need further development to create new branches when
there are new major versions of software, but for now assume we'll
handle those situations manually.
This script can be used to examine the versions of software installed in
the docker images. Currently, this script only works with apache2,
memcached, mysql, nginx, and postgres, and has only been lightly tested
even with them.
Future work includes cli support to allow specifying the software to
be examined, better error checking, and ability to output in some
structured file format (i.e. JSON and/or YAML). Better command line
argument handling would likely also help...
Further, this copies some functionality from update-images.sh that
should be moved into a common file and sourced.
This script is intended to facilitate simple refreshes of docker images
using the version in the current devel release of Ubuntu. This has only
been tested against apache2, memcached, mysql, nginx, and postgres.
Other images might work, but YMMV.
In particular, if adjustments need to be made to the Dockerfile to
facilitate the new software, this script probably won't be sufficient to
do the update.
Note that the docker image name, test script name, source package name,
and binary package name for a given piece of software may be
considerably different. To address that, we just brute force hack
around it by hardcoding some name translations; hopefully later on this
can be done better.
In particular, some software names include major version numbers
(e.g. to indicate API levels), such as mysql-8.0 and postgresql-13.
This script includes some logic to figure these numbers out, which may
or may not work more broadly. Again, it's hoped this can be replaced by
something more robust eventually.
