Also, for some things there is no retention policy configurable at all -- eg pipelines and their associated stdout logs appear to not be auto-cleaned-up at any

Also, for some things there is no retention policy configurable at all -- eg pipelines and their associated stdout logs appear to not be auto-cleaned-up at any expiry date (no default, nothing configurable). If you want to get rid of those you need to script it via the API, it seems: eg https://gitlab.com/eskultety/gitlab_cleaner https://gitlab.com/eskultety/gitlab_cleaner (I just ran that on the QEMU project and reduced the usage from 295GB to 165GB by deleting pipelines older than 1 Jan... so that's a lot of low-hanging logfile fruit gitlab could be auto-deleting.)