fix(iris): add Docker Buildx setup to smoke test workflows#4144
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The smoke workflows were missing docker/setup-buildx-action, causing "Cache export is not supported for the docker driver" failures after b140fd2 switched to buildx --push with registry cache.
Helw150
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Apr 8, 2026
Smoke test workflows (GCP and CoreWeave) were missing the docker/setup-buildx-action step. After b140fd2 switched iris build to use buildx --push with registry cache, the default docker driver fails with "Cache export is not supported for the docker driver." Adding the buildx setup creates the docker-container driver that supports cache export.
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Smoke test workflows (GCP and CoreWeave) were missing the
docker/setup-buildx-action step. After b140fd2 switched iris build to use
buildx --push with registry cache, the default docker driver fails with
"Cache export is not supported for the docker driver." Adding the buildx
setup creates the docker-container driver that supports cache export.