You are browsing a read-only backup copy of Wikitech. The live site can be found at wikitech.wikimedia.org
See Wikimedia Cloud Services team/EnhancementProposals/Toolforge push to deploy for the high-level overview of buildpacks.
pack is the command-line tool used to process buildpacks and build images. See the upstream documentation for more details. pack is currently only needed on instances where images are built.
It's installed via a Debian package (operations/debs/pack in Gerrit) that is imported into the local buster-tools aptly repository. For a new upstream release, you'll need to create a new upstream tarball that has all the vendored dependencies, similar to the helm package.