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CI: --image-volume test: robustify

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Test is failing on 1mt because of differences between 'stat'
command output and /proc/mounts. Solution: compare stat %t
(hex filesystem type), not %T (human-readable). This should
match no matter what kernel version or version of stat on
host/container.

Fixes: #24611

Signed-off-by: Ed Santiago <santiago@redhat.com>
This commit is contained in:
Ed Santiago
2024-11-19 10:03:55 -07:00
parent 569fefc783
commit 97ed067d1a
1 changed files with 8 additions and 8 deletions
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16
test/system/160-volumes.bats
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@ -516,7 +516,6 @@ NeedsChown | true
FROM $IMAGE
VOLUME /data
EOF
fs=$(stat -f -c %T .)
run_podman build -t volume_image $tmpdir
containersconf=$tmpdir/containers.conf
@ -534,15 +533,16 @@ EOF
CONTAINERS_CONF_OVERRIDE="$containersconf" run_podman run --rm volume_image stat -f -c %T /data
is "$output" "tmpfs" "Should be tmpfs"
# get the hostfs first so we can match it below
# Get the hostfs first so we can match it below. The important check is
# the HEX filesystem type (%t); readable one (%T) is for ease of debugging.
# We can't compare %T because our alpine-based testimage doesn't grok btrfs.
run_podman info --format {{.Store.GraphRoot}}
hostfs=$(stat -f -c %T $output)
hostfs=$(stat -f -c '%t %T' $output)
echo "# for debug: stat( $output ) = '$hostfs'"
# stat -f -c %T seems to just return unknown for our normal bind mount for some reason.
# Therefore manually parse /proc/mounts to get the real fs for the bind mount.
CONTAINERS_CONF_OVERRIDE="$containersconf" run_podman run --image-volume anonymous --rm volume_image \
sh -c "grep ' /data ' /proc/mounts | cut -f3 -d' '"
assert "$output" == "$hostfs" "Should match hosts graphroot fs"
# "${foo%% *}" strips everything after the first space: "9123683e btrfs" -> "9123683e"
CONTAINERS_CONF_OVERRIDE="$containersconf" run_podman run --image-volume anonymous --rm volume_image stat -f -c '%t %T' /data
assert "${output%% *}" == "${hostfs%% *}" "/data fs type should match hosts graphroot"
CONTAINERS_CONF_OVERRIDE="$containersconf" run_podman run --image-volume tmpfs --rm volume_image stat -f -c %T /data
is "$output" "tmpfs" "Should be tmpfs"