test.yml: run on self-hosted [6.1.x]

[mauritsvanrees]

Currently, test.yml works, see this run from PR #421, which upgrades to Plone 6.1.5.

But then the release of 6.1.5 (via image-release.yml) fails, see this run.

Big difference: the release runs on self-hosted.

Let's first see if test.yml also starts failing when run on self-hosted.

Then we can see if we can fix that. It goes wrong in docker/setup-buildx-action@v3:

Error response from daemon:
failed to stat parent:
stat /var/lib/containerd-stargz-grpc/snapshotter/snapshots/15190/fs:
no such file or directory

There are lots of differences between self-hosted and the standard ubuntu, some older, some newer. An obvious thing to try it just to move to latest docker/setup-buildx-action@v4. But that is for later.

BTW, 6.2.1 has the same problem. But let's try on one branch for now.

[mauritsvanrees]

@fredvd It keeps failing with the same error when using the latest docker/setup-docker-buildx action:

failed to stat parent:
stat /var/lib/containerd-stargz-grpc/snapshotter/snapshots/15190/fs: no such file or directory

I wonder if the self-hosted needs some updates.

I half remember you mentioning that maybe the self-hosted runner would no longer be needed. Am I remembering correctly?

[fredvd]

Did you see my other PR where I update to the setup qemu v4 recipe. Because that's were the 6.1.5 release was hanging AFAICS #215

[mauritsvanrees]

@fredvd For 6.1.5, docker/setup-qemu-action@v3 was fine. It is docker/setup-buildx-action@v3 (or v4) which is breaking:

https://github.com/plone/plone-backend/actions/runs/28202583156/job/83626409945

There may be some randomness involved.

[mauritsvanrees]

@fredvd I have rebased on 6.1.x to get your version changes, and I have updated the versions in the other files, but the test run still fails, now with:

Run docker/setup-buildx-action@v4
...
Error:
ERROR:
Error response from daemon:
apply layer error for "":
failed to prepare extraction snapshot "extract-881329676--v_P
sha256:05373ad2322b7d605314c8f8f192ae0058723e6f1fa3293c14affc27d383288b":
NotFound: failed to create snapshot:
missing parent "moby/21065/sha256:a8d26d037006414043b277ecb95287692d0960219289d9e27b0bcea0ce233b02"
bucket: not found

[mauritsvanrees]

plone-backend 6.1.5 is available now, using Fred's changes on the 6.1.x branch. And 6.2.1 as well. Thanks!
So let's close this one.