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ci(e2e): use tmpfs for distributed pool isolation

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sm-standard-4 is an ARC pod without usable loop devices, so
mount -o loop fails with ENOENT before any pool filesystem is
attached. Sized tmpfs still gives each pool a distinct st_dev
and independent 1G statfs capacity.

Co-authored-by: RustFS <hello@rustfs.com>
This commit is contained in:
Cursor Agent
2026-09-05 12:58:22 +00:00
parent 1277c11f04
commit ff88b1d160
2 changed files with 21 additions and 9 deletions
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.github/workflows/e2e-distributed.yml
+15 -8
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@@ -20,6 +20,13 @@
# `[profile.e2e-distributed]` in `.config/nextest.toml`. Storage-sensitive PRs,
# nightly runs, and manual dispatches all execute the same fail-closed suite.
# Upgrade cases download the same pinned previous release as e2e-upgrade.yml.
#
# Isolated pool filesystems: expand/decommission/rebalance cases require
# independent `statfs` capacity. `sm-standard-4` is an ARC pod
# (`scripts/ci/check_runner_ephemerality.sh`) and usually has no
# `/dev/loop-control`, so `mount -o loop` fails with ENOENT ("mount failed:
# No such file or directory"). The prepare step therefore mounts four 1 GiB
# tmpfs instances and exports them as `RUSTFS_E2E_POOL_ROOTS`.
name: e2e-distributed
@@ -101,21 +108,21 @@ jobs:
mkdir -p "${mount_base}"
roots=()
for pool in 0 1 2 3; do
image="${mount_base}/pool-${pool}.img"
mountpoint="${mount_base}/pool-${pool}"
truncate -s 1G "${image}"
mkfs.ext4 -q -F "${image}"
mkdir -p "${mountpoint}"
sudo mount -o loop,nosuid,nodev "${image}" "${mountpoint}"
# sm-standard-4 is an ARC pod without usable loop devices, so
# `mount -o loop` fails with ENOENT. Sized tmpfs still reports a
# distinct st_dev and independent 1G statfs capacity.
sudo mount -t tmpfs -o size=1G,nosuid,nodev,mode=1777 tmpfs "${mountpoint}"
sudo chmod 1777 "${mountpoint}"
roots+=("${mountpoint}")
done
printf -v joined_roots '%s:' "${roots[@]}"
echo "RUSTFS_E2E_POOL_ROOTS=${joined_roots%:}" >> "${GITHUB_ENV}"
findmnt --noheadings --output TARGET,SOURCE,FSTYPE --target "${roots[0]}"
findmnt --noheadings --output TARGET,SOURCE,FSTYPE --target "${roots[1]}"
findmnt --noheadings --output TARGET,SOURCE,FSTYPE --target "${roots[2]}"
findmnt --noheadings --output TARGET,SOURCE,FSTYPE --target "${roots[3]}"
findmnt --noheadings --output TARGET,SOURCE,FSTYPE,SIZE --target "${roots[0]}"
findmnt --noheadings --output TARGET,SOURCE,FSTYPE,SIZE --target "${roots[1]}"
findmnt --noheadings --output TARGET,SOURCE,FSTYPE,SIZE --target "${roots[2]}"
findmnt --noheadings --output TARGET,SOURCE,FSTYPE,SIZE --target "${roots[3]}"
- name: Download pinned previous release
env: