Alpine Linux has only one master server, using way more bandwidth than it should. We should therefore implement tiered mirrors.
This means only our own mirrors will synchronize from master.alpinelinux.org, and that third-party mirrors in turn will synchronize from them.
Tiers will be something like this:
“Tier 0” / master
- 3rd party mirrors
(from redmine: issue id 8426, created on 2018-01-26)