Test apparmor-chaiwala-system does not work properly on OSTree images

Affected images versions

OSTree images for v2022 and v2023dev1

Type	Arch	v2021	v2022	v2023dev3
minimal/fixedfunction	amd64
minimal/fixedfunction	armhf
minimal/fixedfunction	arm64
target/hmi	amd64
target/hmi	armhf		x	x
target/hmi	arm64		x	x
basesdk	amd64
sdk	amd64
nfs	amd64
nfs	armhf
nfs	arm64
lxc	amd64
lxc	armhf
lxc	arm64
image-builder
package-source-builder

Unaffected images versions

Testcase

https://qa.apertis.org/latest/apparmor-chaiwala-system.html

Steps to reproduce

Expected result

Test passes without any strange logs

Actual result

Strange logs appears

+ common/run-test-in-systemd --name=apparmor-chaiwala-system --timeout=90 ./run-test.sh
Received signal: <STARTRUN> 6_apparmor-chaiwala-system 5827464_3.1.3.25
Starting test lava.6_apparmor-chaiwala-system (5827464_3.1.3.25)
Skipping test definition patterns.
WARNING: tempfile is deprecated; consider using mktemp instead.
Error: exec failed. Test 'EXEC /bin/ls (no profile, but inherit)' was expected to 'pass'. Reason for failure 'FAILED, child did not exit normally'
Files retained in: /tmp/apparmor-chaiwala-system-ScQgRbp1uQ-tQ1bC6
/var/lib/lava-5827464/1/tests/6_apparmor-chaiwala-system/apparmor-chaiwala-system/goals/exec.sh: PASSED - /tmp/apparmor-chaiwala-system-ScQgRbp1uQ-tQ1bC6
mkdir: cannot create directory '/Applications/home/Storage/chaiwala': Permission denied
touch: cannot touch '/Applications/home/Storage/chaiwala/foo': No such file or directory
mkdir: cannot create directory '/Applications/home/Storage': Permission denied
touch: cannot touch '/Applications/home/Storage/foo': No such file or directory
Error: read failed. Test 'try to open /Applications/home/Storage/chaiwala/foo (ok)' was expected to 'pass'. Reason for failure 'FAILED: No such file or directory'
Files retained in: /tmp/apparmor-chaiwala-system-yMcTkRjtVI-sYA180
/var/lib/lava-5827464/1/tests/6_apparmor-chaiwala-system/apparmor-chaiwala-system/goals/home.sh: PASSED - /tmp/apparmor-chaiwala-system-yMcTkRjtVI-sYA180
real	0m 2.75s
user	0m 0.01s
sys	0m 0.00s
<LAVA_SIGNAL_TESTCASE TEST_CASE_ID=apparmor-chaiwala-system RESULT=pass>
+ set +x
<LAVA_SIGNAL_ENDRUN 6_apparmor-chaiwala-system 5827464_3.1.3.25>

https://lava.collabora.co.uk/scheduler/job/5827464#L12040

Reproducibility

How often the issue is hit when repeating the test and changing nothing (same device, same image, etc.)?

Put the ✅ in the most appropriate entry:

1. ✅ always
2. often, but not always
3. rarely

Impact of bug

Test does not run properly

Attachments

Root cause

• /bin/ls is provided as a link to /usr/bin/coreutils provided by rust-coreutils: AppArmor rules needs to be adapted,
• ping is provided as a link to /usr/bin/busybox: AppArmor rules needs to be adapted,
• the legacy /Applications directory has been removed since #v2022 (2021/11/29) and so the test is unable to create and access subdirs of it on OSTree images.

Outcomes

• tests/apparmor-chaiwala-system!7 (merged)

Management data

This section is for management only, it should be the last one in the description.

Phabricator link: https://phabricator.apertis.org/T8668