* ci(s3tables): drop docker pre-pull from Lakekeeper job
The lakekeeper repro is pure Go against the local weed binary; the job
kept failing on Docker Hub timeouts pulling python:3 and localstack
images the test never runs. Also drop the stale python-in-docker
comments left from the old harness.
* ci(s3tables): serve python:3 from GHA cache in the STS job
Retried pulls still die when both mirror.gcr.io and registry-1.docker.io
are unreachable from the runner. Cache the saved image tarball under a
weekly key: an exact hit skips the registry entirely, a miss pulls fresh
and refreshes the cache, and a stale tarball from a previous week is the
fallback when Docker Hub is down.
* ci(spark): pre-pull the spark tag the test actually runs
The workflow warmed apache/spark:3.5.8 with retries while the
testcontainers setup runs apache/spark:3.5.1, so the real image was
pulled at test time with no retry at all.
* ci(s3tables): route Docker Hub pulls through mirror, drop unused buildx
The integration jobs set up docker/setup-buildx-action only to docker
pull/run images; the buildx bootstrap pulls moby/buildkit from
registry-1.docker.io, which times out and fails the whole job before any
test runs. These jobs never docker build with buildx, so the setup is
pure overhead and an extra registry dependency.
Replace it with a daemon registry-mirror pointing at mirror.gcr.io (a
pull-through cache for Docker Hub) and retry the pre-pulls a few times.
That removes the buildkit pull entirely and routes the rest through the
cache, with graceful fallback to Docker Hub on a miss.
* ci: route Docker Hub through mirror in remaining docker test workflows
Same registry-1.docker.io timeout fix for the other integration jobs.
s3-spark only docker pulls/runs an image, so drop the vestigial buildx
setup and pull through the mirror with retries, matching s3-tables.
kafka-quicktest, s3-proxy-signature, e2e and postgres build/compose and
genuinely need buildx (e2e/postgres export a local layer cache, which the
default driver can't), so keep it and just configure the mirror first —
that way even the moby/buildkit bootstrap pull is served from the cache.
Left samba/pjdfstest alone: they build-push to a local registry and pull
from localhost, so buildx is required and there's no Docker Hub runtime
pull to mirror.
dependabot[bot]