tests: add check for presence of zkey related kernel modules and tools in initrd

tests/zkey-initrd/main.fmf

@@ -0,0 +1,17 @@
+summary: zkey-initrd
+description: |
+    Check for zkey related kernel modules and tools in initrd
+link: https://issues.redhat.com/browse/RHEL-96131
+contact: Daniel Horák <dhorak@redhat.com>
+component:
+  - s390utils-base
+test: ./runtest.sh
+framework: beakerlib
+require:
+  - s390utils-base
+duration: 5m
+enabled: true
+adjust:
+  - when: arch != s390x
+    enabled: false
+    because: This test applies only to s390x systems.

tests/zkey-initrd/runtest.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+#   Description: Check for required kernel modules and tools in initrd
+#   Reference: https://issues.redhat.com/browse/RHEL-96131
+#   Author: Dan Horák <dhorak@redhat.com>
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+#   Copyright (c) 2025 Red Hat, Inc.
+#
+#   This program is free software: you can redistribute it and/or
+#   modify it under the terms of the GNU General Public License as
+#   published by the Free Software Foundation, either version 2 of
+#   the License, or (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be
+#   useful, but WITHOUT ANY WARRANTY; without even the implied
+#   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+#   PURPOSE.  See the GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program. If not, see http://www.gnu.org/licenses/.
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+# Include Beaker environment
+. /usr/share/beakerlib/beakerlib.sh || exit 1
+
+PACKAGE="s390utils-base"
+INITRD=initrd.img
+LISTING=$INITRD.lst
+
+rlJournalStart
+    rlPhaseStartSetup
+        rlAssertRpm $PACKAGE
+        rlRun "TmpDir=\$(mktemp -d)" 0 "Creating tmp directory"
+        rlRun "pushd $TmpDir"
+    rlPhaseEnd
+
+    rlPhaseStartTest "Create initrd and check its content for required kernel modules and tools"
+        rlRun "dracut $INITRD"
+        rlRun "lsinitrd $INITRD > $LISTING"
+        for module in pkey pkey-pckmo pkey-ep11 pkey-cca zcrypt zcrypt_cex4; do
+            rlAssertGrep "kernel/drivers/s390/crypto/${module}\.ko\.xz" $LISTING
+        done
+        for module in paes_s390; do
+            rlAssertGrep "kernel/arch/s390/crypto/${module}\.ko\.xz" $LISTING
+        done
+        for tool in chzcrypt lszcrypt zkey zkey-cryptsetup; do
+            rlAssertGrep "usr/(bin|sbin)/${tool}\$" $LISTING -E
+        done
+    rlPhaseEnd
+
+    rlPhaseStartCleanup
+        rlRun "popd"
+        rlRun "rm -r $TmpDir" 0 "Removing tmp directory"
+    rlPhaseEnd
+rlJournalEnd