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[rhcos-4.16] mantle/kola/tests: adapt mpath verification #4352

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Merged
joelcapitao merged 2 commits into from
Nov 4, 2025
Merged

[rhcos-4.16] mantle/kola/tests: adapt mpath verification #4352

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mantle/kola/tests: adapt mpath verification
joelcapitao May 26, 2025
fe563b1
mantle/kola/tests: use WWID in multipath.partition
joelcapitao May 26, 2025
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13 changes: 7 additions & 6 deletions mantle/kola/tests/misc/multipath.go
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ systemd:

[Service]
Type=oneshot
ExecStart=/usr/sbin/mpathconf --enable
ExecStart=/usr/sbin/mpathconf --enable --user_friendly_names n

[Install]
WantedBy=multi-user.target
Expand All @@ -61,8 +61,8 @@ systemd:
[Unit]
Description=Set Up Multipath On /var/lib/containers
ConditionFirstBoot=true
Requires=dev-mapper-mpatha.device
After=dev-mapper-mpatha.device
Requires=dev-disk-by\x2did-dm\x2duuid\x2dmpath\x2d0x0000000000000001.device
After=dev-disk-by\x2did-dm\x2duuid\x2dmpath\x2d0x0000000000000001.device
# See https://github.com/coreos/coreos-assembler/pull/2457
# and https://github.com/openshift/os/issues/743
After=ostree-remount.service
Expand All @@ -71,7 +71,7 @@ systemd:

[Service]
Type=oneshot
ExecStart=/usr/sbin/mkfs.xfs -L containers -m reflink=1 /dev/mapper/mpatha
ExecStart=/usr/sbin/mkfs.xfs -L containers -m reflink=1 /dev/disk/by-id/dm-uuid-mpath-0x0000000000000001
# This is usually created by tmpfiles.d, but we run earlier than that.
ExecStart=/usr/bin/mkdir -p /var/lib/containers

Expand Down Expand Up @@ -119,7 +119,7 @@ func init() {
ClusterSize: 1,
Platforms: []string{"qemu"},
UserData: mpath_on_var_lib_containers,
AdditionalDisks: []string{"1G:mpath"},
AdditionalDisks: []string{"1G:mpath,wwn=1"},
})
}

Expand Down Expand Up @@ -151,7 +151,8 @@ func verifyBootDropins(c cluster.TestCluster, m platform.Machine, checkBootuuid

func verifyMultipath(c cluster.TestCluster, m platform.Machine, path string) {
srcdev := string(c.MustSSHf(m, "findmnt -nvr %s -o SOURCE", path))
if !strings.HasPrefix(srcdev, "/dev/mapper/mpath") {
udevinfo := string(c.MustSSHf(m, "udevadm info %s", srcdev))
if !strings.Contains(udevinfo, "/dev/disk/by-id/dm-uuid-mpath-") && !strings.Contains(udevinfo, "DM_MPATH") {
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@gemini-code-assist gemini-code-assist bot Nov 4, 2025

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high

The output of udevadm info provides symlink paths relative to /dev, not absolute paths. Therefore, the check for "/dev/disk/by-id/dm-uuid-mpath-" will always fail. The leading /dev/ should be removed to correctly check for the presence of the multipath device symlink.

Suggested change
if !strings.Contains(udevinfo, "/dev/disk/by-id/dm-uuid-mpath-") && !strings.Contains(udevinfo, "DM_MPATH") {
if !strings.Contains(udevinfo, "disk/by-id/dm-uuid-mpath-") && !strings.Contains(udevinfo, "DM_MPATH") {

c.Fatalf("mount %s has non-multipath source %s", path, srcdev)
}
}
Expand Down
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