Currently, the percona-release script contains a hard-coded list of values for things like repositories and their aliases (e.g. ppg12, psmdb44, ps80, etc), as well as the supported architectures (e.g. x86_64). Any changes to our repositories (e.g. adding new product versions) require updating and releasing a new version of the percona-release script.

Instead of maintaining a static list in the script, it should query Percona's version service for this information. This would also allow us to gather some statistics/metrics about how much the percona-release script is actually deployed and used for setting up repos (and potentially determining which repos are enabled).