Build cache
View and clean up the pip and apt package proxy state and the registry layer cache
Required permission: Global admin
Publishing variants and building serving images downloads packages and layers every time. The build cache screen is where you view and clean up the two layers that reduce those downloads.
| Layer | What | If empty or off |
|---|---|---|
| Package proxy (패키지 프록시) | Proxies that keep pip (proxpi) and apt (apt-cacher-ng) downloads | Off (꺼짐) is normal — builds just download directly from the internet. Dead (죽음) (enabled but not responding) means every build fails |
| Layer cache (레이어 캐시) | {tenant}/cache/… repositories inside the built-in registry. They are not images, so they do not appear on the container registry screen | The next build bakes from scratch (it only takes longer) |
Clean up the package proxies
Each proxy card shows its state (Healthy (정상) and so on), address, and which builds it is injected into.
- Invalidate index cache (인덱스 캐시 무효화) on the pip proxy — discards only the PyPI index cache. Downloaded wheel files stay, and proxpi manages them itself. Use it when a newly released package version is not visible to builds.
- Run expiry cleanup (만료 정리 실행) on the apt proxy — cleans up files that the indexes no longer point to. It does not delete them immediately; it marks them and deletes them in the next cycle.
Clean up the layer cache — two steps
Deleting a repository and getting disk space back are different things. Within a tenant, a layer can be pointed to by both an image and the cache, so even if you delete a cache repository, the disk space stays if an image uses that layer.
- In the repository table on the tenant card, press Delete (삭제) on cache repositories you no longer need to delete them. "Referenced size (참조 용량)" in the table is only how much that repository points to, not how much will be reclaimed.
- If "Reclaimable N (M items) (회수 가능 N (M개))" appears under the card title, press Reclaim (회수) on the right. It deletes only orphaned layers that no manifest points to, and gets real disk space back.