bootstrap deployment of swh.alter
This deploys a single-replica container for running swh-alter, with the appropriate configuration.
(with a handful of preparatory commits to make the configuration process a bit nicer)
Helm-diff : https://krkr.eu/tmp/2024-06-07-x1xV5f8IWZg/deploy-alter.html (updated for 55c2ac85)
Edited by Nicolas Dandrimont