gitlab: rate-limit gitlab-pages

Implement ip based rate limiting on gitlab-pages. This ensures we avoid slowing down the gitlab server when extensive requests are made against our gitlab-pages like WKD sync from Archlinux keyring service

https://docs.gitlab.com/ee/administration/pages/#rate-limits

Signed-off-by: Leonidas Spyropoulos artafinde@archlinux.org

assigned to @jelle, @svenstaro, @freswa, @grazzolini, @heftig, @foutrelis, @anthraxx, @klausenbusk, and @artafinde

So 10req/s with a burst of 300 sounds good to me for a first try.

approved this merge request

added 4 commits

• c07a269e...0b4e68bd - 3 commits from branch archlinux:master
• be1321cf - gitlab: rate-limit gitlab-pages

Compare with previous version

merged

mentioned in commit 9e149cf0

Seeing as we currently have 14 of our own boxes that failed to wkd sync, it seems the limit is set too low.

Edit: Might not be failing due to rate limiting as I tested without and still got:

archlinux-keyring-wkd-sync.service: Main process exited, code=exited, status=3/NOTIMPLEMENTED

Seems fixed by archlinux-keyring@8cb0c6d8 so it was unrelated to this MR.