Cleaning up EOL releases

[Baptiste Jonglez]

Hi,

On 30-01-26, Baptiste Jonglez wrote:
> Also, as a longer-term goal, we need to think about removing old releases
> from the main download server (we currently have everything since 17.01,
> and it's taking a lot of disk space as well as slowing down rsync).  Since
> early January, we already redirect CDN downloads to the archive server for
> old releases.  But I would also like to serve these old releases through
> rsync, in case somebody is interested in historical analysis.

This is now getting critical, the main download server is full at 99%.

We really need to archive the old releases and remove them from the main server.
The two main goals are keeping opkg/apk working on all OpenWrt devices out
there, and making sure that our binary archives stays available in the
long term.

Here is a sketch of the current plan:

- archive old releases at multiple independent locations [done : archive
  server, 2 mirrors, and now Hetzner object storage, see attached
  screenshot]

- redirect HTTP traffic to archive servers [partially done: index.html are
  still generated dynamically from main server, and downloads.lede-project.org
  is not redirected yet]

- add static index.html pages for archived releases [help wanted]

- contact mirror operators to warn about the change and make sure they
  keep the old releases if they can (otherwise, rsync will remove them
  once we remove them on the main server) [I will do it ASAP]

- remove a single old major release (17.01 or 18.06) to make sure nothing breaks

- remove all old releases up to 23.05

- document the process so that it can be repeated for each release once it
  goes EOL

The plan is to finish this in the next few weeks.

Baptiste
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