Note that this code is executed on the generic FDo gitlab runners, not
in our docker images. This change is merely to avoid the confusion that
lead to the code in the previous commit.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34684>
Better error handling is more reliable.
Options:
-L, follow location
--retry, number of retries
--retry-all-errors, does not fail on ALL errors, that's why there is -f
-f, fail fast with no output at all on server errors
--retry-delay, make curl sleep this amount of time before each retry
Signed-off-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20788>
Over the last 7 days, git pulls represented a total of 1.7 TB.
On those 1.7 TB, we can see:
- ~300 GB for the CI farm on hetzner
- ~730 GB for the CI farm on packet.net
- ~680 GB for the rest of the world
We can not really change the rest of the world*, but we can
certainly reduce the egress costs towards our CI farms.
Right now, the gitlab runners are not doing a good job at
caching the git trees for the various jobs we make, and
we end up with a lot of cache-misses. A typical pipeline
ends up with a good 2.8GB of git pull data. (a compressed
archive of the mesa folder accounts for 280MB)
In this patch, we implemented what was suggested in
https://gitlab.com/gitlab-org/gitlab/-/issues/215591#note_334642576
- we host a brand new MinIO server on packet
- jobs can upload files on 2 locations:
* git-cache/<namespace>/<project>/<branch-name>.tar.gz
* artifacts/<namespace>/<project>/<pipeline-id>/
- the authorization is handled by gitlab with short tokens
valid only for the time of the job is running
- whenever a job runs, the runner are configured to execute
(eval) $CI_PRE_CLONE_SCRIPT
- this variable is set globally to download the current cache
from the MinIO packet server, unpack it and replace the
possibly out of date cache found on the runner
- then git fetch is run by the runner, and only the delta
between the upstream tree and the local tree gets pulled.
We can rebuild the git cache in a schedule job (once a day
seems sufficient), and then we can stop the cache miss
entirely.
First results showed that instead of pulling 280MB of data
in my fork, I got a pull of only 250KB. That should help us.
* arguably, there are other farms in the rest of the world, so
hopefully we can change those too.
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5428>
