fix(kube): add dedicated DinD storage volume for ARC runners#7719
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fix(kube): add dedicated DinD storage volume for ARC runners#7719
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Without a volume at /var/lib/docker, Docker BuildKit stores all images and layers in the container overlay layer, which is slow and space-constrained. Adding an emptyDir gives BuildKit proper disk access on the node's ephemeral storage.
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Dependency Review✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.Scanned FilesNone |
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Summary
dind-storageemptyDir volume mounted at/var/lib/dockerin the DinD sidecarRoot cause
ARC runner pods use Docker-in-Docker (DinD) but had no volume for
/var/lib/docker. BuildKit wrote all image layers to the container's writable overlay, which is slow and storage-constrained. The Docker build consistently died during base image extraction (exit code 130 / SIGINT).Changes
apps/kube/github/runners/manifests/values.yamldind-storageemptyDir + mount at/var/lib/dockerDeploy order
axum-kbve-e2etoarc-runner-set+ restores Dockerfile to 8192MB)Test plan
axum-kbve-e2eDocker build succeeds onarc-runner-set🤖 Generated with Claude Code